/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see . */ /** @file newgrf.cpp Base of all NewGRF support. */ #include "stdafx.h" #include #include "debug.h" #include "fileio_func.h" #include "engine_func.h" #include "engine_base.h" #include "bridge.h" #include "town.h" #include "newgrf_engine.h" #include "newgrf_text.h" #include "fontcache.h" #include "currency.h" #include "landscape.h" #include "newgrf_cargo.h" #include "newgrf_house.h" #include "newgrf_sound.h" #include "newgrf_station.h" #include "industrytype.h" #include "newgrf_canal.h" #include "newgrf_townname.h" #include "newgrf_industries.h" #include "newgrf_airporttiles.h" #include "newgrf_airport.h" #include "newgrf_object.h" #include "rev.h" #include "fios.h" #include "strings_func.h" #include "date_func.h" #include "string_func.h" #include "network/network.h" #include #include "smallmap_gui.h" #include "genworld.h" #include "error.h" #include "vehicle_func.h" #include "language.h" #include "vehicle_base.h" #include "table/strings.h" #include "table/build_industry.h" /* TTDPatch extended GRF format codec * (c) Petr Baudis 2004 (GPL'd) * Changes by Florian octo Forster are (c) by the OpenTTD development team. * * Contains portions of documentation by TTDPatch team. * Thanks especially to Josef Drexler for the documentation as well as a lot * of help at #tycoon. Also thanks to Michael Blunck for is GRF files which * served as subject to the initial testing of this codec. */ /** List of all loaded GRF files */ static SmallVector _grf_files; /** Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */ byte _misc_grf_features = 0; /** 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */ static uint32 _ttdpatch_flags[8]; /** Indicates which are the newgrf features currently loaded ingame */ GRFLoadedFeatures _loaded_newgrf_features; enum GrfDataType { GDT_SOUND, }; static const uint MAX_SPRITEGROUP = UINT8_MAX; ///< Maximum GRF-local ID for a spritegroup. /** Temporary data during loading of GRFs */ struct GrfProcessingState { private: /** Definition of a single Action1 spriteset */ struct SpriteSet { SpriteID sprite; ///< SpriteID of the first sprite of the set. uint num_sprites; ///< Number of sprites in the set. }; /** Currently referenceable spritesets */ std::map spritesets[GSF_END]; public: /* Global state */ GrfLoadingStage stage; ///< Current loading stage SpriteID spriteid; ///< First available SpriteID for loading realsprites. /* Local state in the file */ uint file_index; ///< File index of currently processed GRF file. GRFFile *grffile; ///< Currently processed GRF file. GRFConfig *grfconfig; ///< Config of the currently processed GRF file. uint32 nfo_line; ///< Currently processed pseudo sprite number in the GRF. /* Kind of return values when processing certain actions */ int skip_sprites; ///< Number of psuedo sprites to skip before processing the next one. (-1 to skip to end of file) byte data_blocks; ///< Number of binary include sprites to read before processing the next pseudo sprite. GrfDataType data_type; ///< Type of the binary include sprites to read. /* Currently referenceable spritegroups */ SpriteGroup *spritegroups[MAX_SPRITEGROUP + 1]; /** Clear temporary data before processing the next file in the current loading stage */ void ClearDataForNextFile() { this->nfo_line = 0; this->skip_sprites = 0; this->data_blocks = 0; for (uint i = 0; i < GSF_END; i++) { this->spritesets[i].clear(); } memset(this->spritegroups, 0, sizeof(this->spritegroups)); } /** * Records new spritesets. * @param feature GrfSpecFeature the set is defined for. * @param first_sprite SpriteID of the first sprite in the set. * @param first_set First spriteset to define. * @param numsets Number of sets to define. * @param numents Number of sprites per set to define. */ void AddSpriteSets(byte feature, SpriteID first_sprite, uint first_set, uint numsets, uint numents) { assert(feature < GSF_END); for (uint i = 0; i < numsets; i++) { SpriteSet &set = this->spritesets[feature][first_set + i]; set.sprite = first_sprite + i * numents; set.num_sprites = numents; } } /** * Check whether there are any valid spritesets for a feature. * @param feature GrfSpecFeature to check. * @return true if there are any valid sets. * @note Spritesets with zero sprites are valid to allow callback-failures. */ bool HasValidSpriteSets(byte feature) const { assert(feature < GSF_END); return !this->spritesets[feature].empty(); } /** * Check whether a specific set is defined. * @param feature GrfSpecFeature to check. * @param set Set to check. * @return true if the set is valid. * @note Spritesets with zero sprites are valid to allow callback-failures. */ bool IsValidSpriteSet(byte feature, uint set) const { assert(feature < GSF_END); return this->spritesets[feature].find(set) != this->spritesets[feature].end(); } /** * Returns the first sprite of a spriteset. * @param feature GrfSpecFeature to query. * @param set Set to query. * @return First sprite of the set. */ SpriteID GetSprite(byte feature, uint set) const { assert(IsValidSpriteSet(feature, set)); return this->spritesets[feature].find(set)->second.sprite; } /** * Returns the number of sprites in a spriteset * @param feature GrfSpecFeature to query. * @param set Set to query. * @return Number of sprites in the set. */ uint GetNumEnts(byte feature, uint set) const { assert(IsValidSpriteSet(feature, set)); return this->spritesets[feature].find(set)->second.num_sprites; } }; static GrfProcessingState _cur; class OTTDByteReaderSignal { }; /** Class to read from a NewGRF file */ class ByteReader { protected: byte *data; byte *end; public: ByteReader(byte *data, byte *end) : data(data), end(end) { } inline byte ReadByte() { if (data < end) return *(data)++; throw OTTDByteReaderSignal(); } uint16 ReadWord() { uint16 val = ReadByte(); return val | (ReadByte() << 8); } uint16 ReadExtendedByte() { uint16 val = ReadByte(); return val == 0xFF ? ReadWord() : val; } uint32 ReadDWord() { uint32 val = ReadWord(); return val | (ReadWord() << 16); } uint32 ReadVarSize(byte size) { switch (size) { case 1: return ReadByte(); case 2: return ReadWord(); case 4: return ReadDWord(); default: NOT_REACHED(); return 0; } } const char *ReadString() { char *string = reinterpret_cast(data); size_t string_length = ttd_strnlen(string, Remaining()); if (string_length == Remaining()) { /* String was not NUL terminated, so make sure it is now. */ string[string_length - 1] = '\0'; grfmsg(7, "String was not terminated with a zero byte."); } else { /* Increase the string length to include the NUL byte. */ string_length++; } Skip(string_length); return string; } inline size_t Remaining() const { return end - data; } inline bool HasData(size_t count = 1) const { return data + count <= end; } inline byte *Data() { return data; } inline void Skip(size_t len) { data += len; /* It is valid to move the buffer to exactly the end of the data, * as there may not be any more data read. */ if (data > end) throw OTTDByteReaderSignal(); } }; typedef void (*SpecialSpriteHandler)(ByteReader *buf); static const uint MAX_STATIONS = 256; /** Temporary engine data used when loading only */ struct GRFTempEngineData { uint16 cargo_allowed; uint16 cargo_disallowed; RailTypeLabel railtypelabel; const GRFFile *refitmask_grf; ///< GRF providing the cargo translation table for the refitmask. bool refitmask_valid; ///< Did the newgrf set any refittability property? If not, default refittability will be applied. bool prop27_set; ///< Did the NewGRF set property 27 (misc flags)? uint8 rv_max_speed; ///< Temporary storage of RV prop 15, maximum speed in mph/0.8 uint32 ctt_include_mask; ///< Cargo types always included in the refit mask. uint32 ctt_exclude_mask; ///< Cargo types always excluded from the refit mask. }; static GRFTempEngineData *_gted; ///< Temporary engine data used during NewGRF loading /** * Contains the GRF ID of the owner of a vehicle if it has been reserved. * GRM for vehicles is only used if dynamic engine allocation is disabled, * so 256 is the number of original engines. */ static uint32 _grm_engines[256]; /** Contains the GRF ID of the owner of a cargo if it has been reserved */ static uint32 _grm_cargoes[NUM_CARGO * 2]; struct GRFLocation { uint32 grfid; uint32 nfoline; GRFLocation(uint32 grfid, uint32 nfoline) : grfid(grfid), nfoline(nfoline) { } bool operator<(const GRFLocation &other) const { return this->grfid < other.grfid || (this->grfid == other.grfid && this->nfoline < other.nfoline); } bool operator == (const GRFLocation &other) const { return this->grfid == other.grfid && this->nfoline == other.nfoline; } }; static std::map _grm_sprites; typedef std::map GRFLineToSpriteOverride; static GRFLineToSpriteOverride _grf_line_to_action6_sprite_override; /** * DEBUG() function dedicated to newGRF debugging messages * Function is essentially the same as DEBUG(grf, severity, ...) with the * addition of file:line information when parsing grf files. * NOTE: for the above reason(s) grfmsg() should ONLY be used for * loading/parsing grf files, not for runtime debug messages as there * is no file information available during that time. * @param severity debugging severity level, see debug.h * @param str message in printf() format */ void CDECL grfmsg(int severity, const char *str, ...) { char buf[1024]; va_list va; va_start(va, str); vsnprintf(buf, sizeof(buf), str, va); va_end(va); DEBUG(grf, severity, "[%s:%d] %s", _cur.grfconfig->filename, _cur.nfo_line, buf); } /** * Obtain a NewGRF file by its grfID * @param grfid The grfID to obtain the file for * @return The file. */ static GRFFile *GetFileByGRFID(uint32 grfid) { const GRFFile * const *end = _grf_files.End(); for (GRFFile * const *file = _grf_files.Begin(); file != end; file++) { if ((*file)->grfid == grfid) return *file; } return NULL; } /** * Obtain a NewGRF file by its filename * @param filename The filename to obtain the file for. * @return The file. */ static GRFFile *GetFileByFilename(const char *filename) { const GRFFile * const *end = _grf_files.End(); for (GRFFile * const *file = _grf_files.Begin(); file != end; file++) { if (strcmp((*file)->filename, filename) == 0) return *file; } return NULL; } /** Reset all NewGRFData that was used only while processing data */ static void ClearTemporaryNewGRFData(GRFFile *gf) { /* Clear the GOTO labels used for GRF processing */ for (GRFLabel *l = gf->label; l != NULL;) { GRFLabel *l2 = l->next; free(l); l = l2; } gf->label = NULL; } /** * Disable a GRF * @param message Error message or STR_NULL. * @param config GRFConfig to disable, NULL for current. * @return Error message of the GRF for further customisation. */ static GRFError *DisableGrf(StringID message = STR_NULL, GRFConfig *config = NULL) { GRFFile *file; if (config != NULL) { file = GetFileByGRFID(config->ident.grfid); } else { config = _cur.grfconfig; file = _cur.grffile; } config->status = GCS_DISABLED; if (file != NULL) ClearTemporaryNewGRFData(file); if (config == _cur.grfconfig) _cur.skip_sprites = -1; if (message != STR_NULL) { delete config->error; config->error = new GRFError(STR_NEWGRF_ERROR_MSG_FATAL, message); } return config->error; } typedef std::map StringIDToGRFIDMapping; static StringIDToGRFIDMapping _string_to_grf_mapping; /** * Used when setting an object's property to map to the GRF's strings * while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one * @param grfid Id of the grf file. * @param str StringID that we want to have the equivalent in OoenTTD. * @return The properly adjusted StringID. */ StringID MapGRFStringID(uint32 grfid, StringID str) { /* 0xD0 and 0xDC stand for all the TextIDs in the range * of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts). * These strings are unique to each grf file, and thus require to be used with the * grfid in which they are declared */ switch (GB(str, 8, 8)) { case 0xD0: case 0xD1: case 0xD2: case 0xD3: case 0xDC: return GetGRFStringID(grfid, str); case 0xD4: case 0xD5: case 0xD6: case 0xD7: /* Strings embedded via 0x81 have 0x400 added to them (no real * explanation why...) */ return GetGRFStringID(grfid, str - 0x400); default: break; } return TTDPStringIDToOTTDStringIDMapping(str); } static std::map _grf_id_overrides; /** * Set the override for a NewGRF * @param source_grfid The grfID which wants to override another NewGRF. * @param target_grfid The grfID which is being overridden. */ static void SetNewGRFOverride(uint32 source_grfid, uint32 target_grfid) { _grf_id_overrides[source_grfid] = target_grfid; grfmsg(5, "SetNewGRFOverride: Added override of 0x%X to 0x%X", BSWAP32(source_grfid), BSWAP32(target_grfid)); } /** * Returns the engine associated to a certain internal_id, resp. allocates it. * @param file NewGRF that wants to change the engine. * @param type Vehicle type. * @param internal_id Engine ID inside the NewGRF. * @param static_access If the engine is not present, return NULL instead of allocating a new engine. (Used for static Action 0x04). * @return The requested engine. */ static Engine *GetNewEngine(const GRFFile *file, VehicleType type, uint16 internal_id, bool static_access = false) { /* Hack for add-on GRFs that need to modify another GRF's engines. This lets * them use the same engine slots. */ uint32 scope_grfid = INVALID_GRFID; // If not using dynamic_engines, all newgrfs share their ID range if (_settings_game.vehicle.dynamic_engines) { /* If dynamic_engies is enabled, there can be multiple independent ID ranges. */ scope_grfid = file->grfid; uint32 override = _grf_id_overrides[file->grfid]; if (override != 0) { scope_grfid = override; const GRFFile *grf_match = GetFileByGRFID(override); if (grf_match == NULL) { grfmsg(5, "Tried mapping from GRFID %x to %x but target is not loaded", BSWAP32(file->grfid), BSWAP32(override)); } else { grfmsg(5, "Mapping from GRFID %x to %x", BSWAP32(file->grfid), BSWAP32(override)); } } /* Check if the engine is registered in the override manager */ EngineID engine = _engine_mngr.GetID(type, internal_id, scope_grfid); if (engine != INVALID_ENGINE) { Engine *e = Engine::Get(engine); if (e->grf_prop.grffile == NULL) e->grf_prop.grffile = file; return e; } } /* Check if there is an unreserved slot */ EngineID engine = _engine_mngr.GetID(type, internal_id, INVALID_GRFID); if (engine != INVALID_ENGINE) { Engine *e = Engine::Get(engine); if (e->grf_prop.grffile == NULL) { e->grf_prop.grffile = file; grfmsg(5, "Replaced engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id); } /* Reserve the engine slot */ if (!static_access) { EngineIDMapping *eid = _engine_mngr.Get(engine); eid->grfid = scope_grfid; // Note: this is INVALID_GRFID if dynamic_engines is disabled, so no reservation } return e; } if (static_access) return NULL; if (!Engine::CanAllocateItem()) { grfmsg(0, "Can't allocate any more engines"); return NULL; } size_t engine_pool_size = Engine::GetPoolSize(); /* ... it's not, so create a new one based off an existing engine */ Engine *e = new Engine(type, internal_id); e->grf_prop.grffile = file; /* Reserve the engine slot */ assert(_engine_mngr.Length() == e->index); EngineIDMapping *eid = _engine_mngr.Append(); eid->type = type; eid->grfid = scope_grfid; // Note: this is INVALID_GRFID if dynamic_engines is disabled, so no reservation eid->internal_id = internal_id; eid->substitute_id = min(internal_id, _engine_counts[type]); // substitute_id == _engine_counts[subtype] means "no substitute" if (engine_pool_size != Engine::GetPoolSize()) { /* Resize temporary engine data ... */ _gted = ReallocT(_gted, Engine::GetPoolSize()); /* and blank the new block. */ size_t len = (Engine::GetPoolSize() - engine_pool_size) * sizeof(*_gted); memset(_gted + engine_pool_size, 0, len); } if (type == VEH_TRAIN) { _gted[e->index].railtypelabel = GetRailTypeInfo(e->u.rail.railtype)->label; } grfmsg(5, "Created new engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id); return e; } /** * Return the ID of a new engine * @param file The NewGRF file providing the engine. * @param type The Vehicle type. * @param internal_id NewGRF-internal ID of the engine. * @return The new EngineID. * @note depending on the dynamic_engine setting and a possible override * property the grfID may be unique or overwriting or partially re-defining * properties of an existing engine. */ EngineID GetNewEngineID(const GRFFile *file, VehicleType type, uint16 internal_id) { uint32 scope_grfid = INVALID_GRFID; // If not using dynamic_engines, all newgrfs share their ID range if (_settings_game.vehicle.dynamic_engines) { scope_grfid = file->grfid; uint32 override = _grf_id_overrides[file->grfid]; if (override != 0) scope_grfid = override; } return _engine_mngr.GetID(type, internal_id, scope_grfid); } /** * Map the colour modifiers of TTDPatch to those that Open is using. * @param grf_sprite Pointer to the structure been modified. */ static void MapSpriteMappingRecolour(PalSpriteID *grf_sprite) { if (HasBit(grf_sprite->pal, 14)) { ClrBit(grf_sprite->pal, 14); SetBit(grf_sprite->sprite, SPRITE_MODIFIER_OPAQUE); } if (HasBit(grf_sprite->sprite, 14)) { ClrBit(grf_sprite->sprite, 14); SetBit(grf_sprite->sprite, PALETTE_MODIFIER_TRANSPARENT); } if (HasBit(grf_sprite->sprite, 15)) { ClrBit(grf_sprite->sprite, 15); SetBit(grf_sprite->sprite, PALETTE_MODIFIER_COLOUR); } } /** * Read a sprite and a palette from the GRF and convert them into a format * suitable to OpenTTD. * @param buf Input stream. * @param read_flags Whether to read TileLayoutFlags. * @param invert_action1_flag Set to true, if palette bit 15 means 'not from action 1'. * @param use_cur_spritesets Whether to use currently referenceable action 1 sets. * @param feature GrfSpecFeature to use spritesets from. * @param [out] grf_sprite Read sprite and palette. * @param [out] max_sprite_offset Optionally returns the number of sprites in the spriteset of the sprite. (0 if no spritset) * @param [out] max_palette_offset Optionally returns the number of sprites in the spriteset of the palette. (0 if no spritset) * @return Read TileLayoutFlags. */ static TileLayoutFlags ReadSpriteLayoutSprite(ByteReader *buf, bool read_flags, bool invert_action1_flag, bool use_cur_spritesets, int feature, PalSpriteID *grf_sprite, uint16 *max_sprite_offset = NULL, uint16 *max_palette_offset = NULL) { grf_sprite->sprite = buf->ReadWord(); grf_sprite->pal = buf->ReadWord(); TileLayoutFlags flags = read_flags ? (TileLayoutFlags)buf->ReadWord() : TLF_NOTHING; MapSpriteMappingRecolour(grf_sprite); bool custom_sprite = HasBit(grf_sprite->pal, 15) != invert_action1_flag; ClrBit(grf_sprite->pal, 15); if (custom_sprite) { /* Use sprite from Action 1 */ uint index = GB(grf_sprite->sprite, 0, 14); if (use_cur_spritesets && (!_cur.IsValidSpriteSet(feature, index) || _cur.GetNumEnts(feature, index) == 0)) { grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout uses undefined custom spriteset %d", index); grf_sprite->sprite = SPR_IMG_QUERY; grf_sprite->pal = PAL_NONE; } else { SpriteID sprite = use_cur_spritesets ? _cur.GetSprite(feature, index) : index; if (max_sprite_offset != NULL) *max_sprite_offset = use_cur_spritesets ? _cur.GetNumEnts(feature, index) : UINT16_MAX; SB(grf_sprite->sprite, 0, SPRITE_WIDTH, sprite); SetBit(grf_sprite->sprite, SPRITE_MODIFIER_CUSTOM_SPRITE); } } else if ((flags & TLF_SPRITE_VAR10) && !(flags & TLF_SPRITE_REG_FLAGS)) { grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout specifies var10 value for non-action-1 sprite"); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return flags; } if (flags & TLF_CUSTOM_PALETTE) { /* Use palette from Action 1 */ uint index = GB(grf_sprite->pal, 0, 14); if (use_cur_spritesets && (!_cur.IsValidSpriteSet(feature, index) || _cur.GetNumEnts(feature, index) == 0)) { grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout uses undefined custom spriteset %d for 'palette'", index); grf_sprite->pal = PAL_NONE; } else { SpriteID sprite = use_cur_spritesets ? _cur.GetSprite(feature, index) : index; if (max_palette_offset != NULL) *max_palette_offset = use_cur_spritesets ? _cur.GetNumEnts(feature, index) : UINT16_MAX; SB(grf_sprite->pal, 0, SPRITE_WIDTH, sprite); SetBit(grf_sprite->pal, SPRITE_MODIFIER_CUSTOM_SPRITE); } } else if ((flags & TLF_PALETTE_VAR10) && !(flags & TLF_PALETTE_REG_FLAGS)) { grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 value for non-action-1 palette"); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return flags; } return flags; } /** * Preprocess the TileLayoutFlags and read register modifiers from the GRF. * @param buf Input stream. * @param flags TileLayoutFlags to process. * @param is_parent Whether the sprite is a parentsprite with a bounding box. * @param dts Sprite layout to insert data into. * @param index Sprite index to process; 0 for ground sprite. */ static void ReadSpriteLayoutRegisters(ByteReader *buf, TileLayoutFlags flags, bool is_parent, NewGRFSpriteLayout *dts, uint index) { if (!(flags & TLF_DRAWING_FLAGS)) return; if (dts->registers == NULL) dts->AllocateRegisters(); TileLayoutRegisters ®s = const_cast(dts->registers[index]); regs.flags = flags & TLF_DRAWING_FLAGS; if (flags & TLF_DODRAW) regs.dodraw = buf->ReadByte(); if (flags & TLF_SPRITE) regs.sprite = buf->ReadByte(); if (flags & TLF_PALETTE) regs.palette = buf->ReadByte(); if (is_parent) { if (flags & TLF_BB_XY_OFFSET) { regs.delta.parent[0] = buf->ReadByte(); regs.delta.parent[1] = buf->ReadByte(); } if (flags & TLF_BB_Z_OFFSET) regs.delta.parent[2] = buf->ReadByte(); } else { if (flags & TLF_CHILD_X_OFFSET) regs.delta.child[0] = buf->ReadByte(); if (flags & TLF_CHILD_Y_OFFSET) regs.delta.child[1] = buf->ReadByte(); } if (flags & TLF_SPRITE_VAR10) { regs.sprite_var10 = buf->ReadByte(); if (regs.sprite_var10 > TLR_MAX_VAR10) { grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 (%d) exceeding the maximal allowed value %d", regs.sprite_var10, TLR_MAX_VAR10); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return; } } if (flags & TLF_PALETTE_VAR10) { regs.palette_var10 = buf->ReadByte(); if (regs.palette_var10 > TLR_MAX_VAR10) { grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 (%d) exceeding the maximal allowed value %d", regs.palette_var10, TLR_MAX_VAR10); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return; } } } /** * Read a spritelayout from the GRF. * @param buf Input * @param num_building_sprites Number of building sprites to read * @param use_cur_spritesets Whether to use currently referenceable action 1 sets. * @param feature GrfSpecFeature to use spritesets from. * @param allow_var10 Whether the spritelayout may specifiy var10 values for resolving multiple action-1-2-3 chains * @param no_z_position Whether bounding boxes have no Z offset * @param dts Layout container to output into * @return True on error (GRF was disabled). */ static bool ReadSpriteLayout(ByteReader *buf, uint num_building_sprites, bool use_cur_spritesets, byte feature, bool allow_var10, bool no_z_position, NewGRFSpriteLayout *dts) { bool has_flags = HasBit(num_building_sprites, 6); ClrBit(num_building_sprites, 6); TileLayoutFlags valid_flags = TLF_KNOWN_FLAGS; if (!allow_var10) valid_flags &= ~TLF_VAR10_FLAGS; dts->Allocate(num_building_sprites); // allocate before reading groundsprite flags uint16 *max_sprite_offset = AllocaM(uint16, num_building_sprites + 1); uint16 *max_palette_offset = AllocaM(uint16, num_building_sprites + 1); MemSetT(max_sprite_offset, 0, num_building_sprites + 1); MemSetT(max_palette_offset, 0, num_building_sprites + 1); /* Groundsprite */ TileLayoutFlags flags = ReadSpriteLayoutSprite(buf, has_flags, false, use_cur_spritesets, feature, &dts->ground, max_sprite_offset, max_palette_offset); if (_cur.skip_sprites < 0) return true; if (flags & ~(valid_flags & ~TLF_NON_GROUND_FLAGS)) { grfmsg(1, "ReadSpriteLayout: Spritelayout uses invalid flag 0x%x for ground sprite", flags & ~(valid_flags & ~TLF_NON_GROUND_FLAGS)); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return true; } ReadSpriteLayoutRegisters(buf, flags, false, dts, 0); if (_cur.skip_sprites < 0) return true; for (uint i = 0; i < num_building_sprites; i++) { DrawTileSeqStruct *seq = const_cast(&dts->seq[i]); flags = ReadSpriteLayoutSprite(buf, has_flags, false, use_cur_spritesets, feature, &seq->image, max_sprite_offset + i + 1, max_palette_offset + i + 1); if (_cur.skip_sprites < 0) return true; if (flags & ~valid_flags) { grfmsg(1, "ReadSpriteLayout: Spritelayout uses unknown flag 0x%x", flags & ~valid_flags); DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT); return true; } seq->delta_x = buf->ReadByte(); seq->delta_y = buf->ReadByte(); if (!no_z_position) seq->delta_z = buf->ReadByte(); if (seq->IsParentSprite()) { seq->size_x = buf->ReadByte(); seq->size_y = buf->ReadByte(); seq->size_z = buf->ReadByte(); } ReadSpriteLayoutRegisters(buf, flags, seq->IsParentSprite(), dts, i + 1); if (_cur.skip_sprites < 0) return true; } /* Check if the number of sprites per spriteset is consistent */ bool is_consistent = true; dts->consistent_max_offset = 0; for (uint i = 0; i < num_building_sprites + 1; i++) { if (max_sprite_offset[i] > 0) { if (dts->consistent_max_offset == 0) { dts->consistent_max_offset = max_sprite_offset[i]; } else if (dts->consistent_max_offset != max_sprite_offset[i]) { is_consistent = false; break; } } if (max_palette_offset[i] > 0) { if (dts->consistent_max_offset == 0) { dts->consistent_max_offset = max_palette_offset[i]; } else if (dts->consistent_max_offset != max_palette_offset[i]) { is_consistent = false; break; } } } /* When the Action1 sets are unknown, everything should be 0 (no spriteset usage) or UINT16_MAX (some spriteset usage) */ assert(use_cur_spritesets || (is_consistent && (dts->consistent_max_offset == 0 || dts->consistent_max_offset == UINT16_MAX))); if (!is_consistent || dts->registers != NULL) { dts->consistent_max_offset = 0; if (dts->registers == NULL) dts->AllocateRegisters(); for (uint i = 0; i < num_building_sprites + 1; i++) { TileLayoutRegisters ®s = const_cast(dts->registers[i]); regs.max_sprite_offset = max_sprite_offset[i]; regs.max_palette_offset = max_palette_offset[i]; } } return false; } /** * Converts TTD(P) Base Price pointers into the enum used by OTTD * See http://wiki.ttdpatch.net/tiki-index.php?page=BaseCosts * @param base_pointer TTD(P) Base Price Pointer * @param error_location Function name for grf error messages * @param index If #base_pointer is valid, #index is assigned to the matching price; else it is left unchanged */ static void ConvertTTDBasePrice(uint32 base_pointer, const char *error_location, Price *index) { /* Special value for 'none' */ if (base_pointer == 0) { *index = INVALID_PRICE; return; } static const uint32 start = 0x4B34; ///< Position of first base price static const uint32 size = 6; ///< Size of each base price record if (base_pointer < start || (base_pointer - start) % size != 0 || (base_pointer - start) / size >= PR_END) { grfmsg(1, "%s: Unsupported running cost base 0x%04X, ignoring", error_location, base_pointer); return; } *index = (Price)((base_pointer - start) / size); } /** Possible return values for the FeatureChangeInfo functions */ enum ChangeInfoResult { CIR_SUCCESS, ///< Variable was parsed and read CIR_DISABLED, ///< GRF was disabled due to error CIR_UNHANDLED, ///< Variable was parsed but unread CIR_UNKNOWN, ///< Variable is unknown CIR_INVALID_ID, ///< Attempt to modify an invalid ID }; typedef ChangeInfoResult (*VCI_Handler)(uint engine, int numinfo, int prop, ByteReader *buf); /** * Define properties common to all vehicles * @param ei Engine info. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult CommonVehicleChangeInfo(EngineInfo *ei, int prop, ByteReader *buf) { switch (prop) { case 0x00: // Introduction date ei->base_intro = buf->ReadWord() + DAYS_TILL_ORIGINAL_BASE_YEAR; break; case 0x02: // Decay speed ei->decay_speed = buf->ReadByte(); break; case 0x03: // Vehicle life ei->lifelength = buf->ReadByte(); break; case 0x04: // Model life ei->base_life = buf->ReadByte(); break; case 0x06: // Climates available ei->climates = buf->ReadByte(); break; case PROP_VEHICLE_LOAD_AMOUNT: // 0x07 Loading speed /* Amount of cargo loaded during a vehicle's "loading tick" */ ei->load_amount = buf->ReadByte(); break; default: return CIR_UNKNOWN; } return CIR_SUCCESS; } /** * Define properties for rail vehicles * @param engine :ocal ID of the first vehicle. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult RailVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur.grffile, VEH_TRAIN, engine + i); if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles EngineInfo *ei = &e->info; RailVehicleInfo *rvi = &e->u.rail; switch (prop) { case 0x05: { // Track type uint8 tracktype = buf->ReadByte(); if (tracktype < _cur.grffile->railtype_max) { _gted[e->index].railtypelabel = _cur.grffile->railtype_list[tracktype]; break; } switch (tracktype) { case 0: _gted[e->index].railtypelabel = rvi->engclass >= 2 ? RAILTYPE_ELECTRIC_LABEL : RAILTYPE_RAIL_LABEL; break; case 1: _gted[e->index].railtypelabel = RAILTYPE_MONO_LABEL; break; case 2: _gted[e->index].railtypelabel = RAILTYPE_MAGLEV_LABEL; break; default: grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype); break; } break; } case 0x08: // AI passenger service /* Tells the AI that this engine is designed for * passenger services and shouldn't be used for freight. */ rvi->ai_passenger_only = buf->ReadByte(); break; case PROP_TRAIN_SPEED: { // 0x09 Speed (1 unit is 1 km-ish/h) uint16 speed = buf->ReadWord(); if (speed == 0xFFFF) speed = 0; rvi->max_speed = speed; break; } case PROP_TRAIN_POWER: // 0x0B Power rvi->power = buf->ReadWord(); /* Set engine / wagon state based on power */ if (rvi->power != 0) { if (rvi->railveh_type == RAILVEH_WAGON) { rvi->railveh_type = RAILVEH_SINGLEHEAD; } } else { rvi->railveh_type = RAILVEH_WAGON; } break; case PROP_TRAIN_RUNNING_COST_FACTOR: // 0x0D Running cost factor rvi->running_cost = buf->ReadByte(); break; case 0x0E: // Running cost base ConvertTTDBasePrice(buf->ReadDWord(), "RailVehicleChangeInfo", &rvi->running_cost_class); break; case 0x12: { // Sprite ID uint8 spriteid = buf->ReadByte(); /* TTD sprite IDs point to a location in a 16bit array, but we use it * as an array index, so we need it to be half the original value. */ if (spriteid < 0xFD) spriteid >>= 1; rvi->image_index = spriteid; break; } case 0x13: { // Dual-headed uint8 dual = buf->ReadByte(); if (dual != 0) { rvi->railveh_type = RAILVEH_MULTIHEAD; } else { rvi->railveh_type = rvi->power == 0 ? RAILVEH_WAGON : RAILVEH_SINGLEHEAD; } break; } case PROP_TRAIN_CARGO_CAPACITY: // 0x14 Cargo capacity rvi->capacity = buf->ReadByte(); break; case 0x15: { // Cargo type uint8 ctype = buf->ReadByte(); if (ctype == 0xFF) { /* 0xFF is specified as 'use first refittable' */ ei->cargo_type = CT_INVALID; } else if (_cur.grffile->grf_version >= 8) { /* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */ ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile); } else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) { /* Use untranslated cargo. */ ei->cargo_type = ctype; } else { ei->cargo_type = CT_INVALID; grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype); } break; } case PROP_TRAIN_WEIGHT: // 0x16 Weight SB(rvi->weight, 0, 8, buf->ReadByte()); break; case PROP_TRAIN_COST_FACTOR: // 0x17 Cost factor rvi->cost_factor = buf->ReadByte(); break; case 0x18: // AI rank grfmsg(2, "RailVehicleChangeInfo: Property 0x18 'AI rank' not used by NoAI, ignored."); buf->ReadByte(); break; case 0x19: { // Engine traction type /* What do the individual numbers mean? * 0x00 .. 0x07: Steam * 0x08 .. 0x27: Diesel * 0x28 .. 0x31: Electric * 0x32 .. 0x37: Monorail * 0x38 .. 0x41: Maglev */ uint8 traction = buf->ReadByte(); EngineClass engclass; if (traction <= 0x07) { engclass = EC_STEAM; } else if (traction <= 0x27) { engclass = EC_DIESEL; } else if (traction <= 0x31) { engclass = EC_ELECTRIC; } else if (traction <= 0x37) { engclass = EC_MONORAIL; } else if (traction <= 0x41) { engclass = EC_MAGLEV; } else { break; } if (_cur.grffile->railtype_max == 0) { /* Use traction type to select between normal and electrified * rail only when no translation list is in place. */ if (_gted[e->index].railtypelabel == RAILTYPE_RAIL_LABEL && engclass >= EC_ELECTRIC) _gted[e->index].railtypelabel = RAILTYPE_ELECTRIC_LABEL; if (_gted[e->index].railtypelabel == RAILTYPE_ELECTRIC_LABEL && engclass < EC_ELECTRIC) _gted[e->index].railtypelabel = RAILTYPE_RAIL_LABEL; } rvi->engclass = engclass; break; } case 0x1A: // Alter purchase list sort order AlterVehicleListOrder(e->index, buf->ReadExtendedByte()); break; case 0x1B: // Powered wagons power bonus rvi->pow_wag_power = buf->ReadWord(); break; case 0x1C: // Refit cost ei->refit_cost = buf->ReadByte(); break; case 0x1D: // Refit cargo ei->refit_mask = buf->ReadDWord(); _gted[e->index].refitmask_valid = true; _gted[e->index].refitmask_grf = _cur.grffile; break; case 0x1E: // Callback ei->callback_mask = buf->ReadByte(); break; case PROP_TRAIN_TRACTIVE_EFFORT: // 0x1F Tractive effort coefficient rvi->tractive_effort = buf->ReadByte(); break; case 0x20: // Air drag rvi->air_drag = buf->ReadByte(); break; case PROP_TRAIN_SHORTEN_FACTOR: // 0x21 Shorter vehicle rvi->shorten_factor = buf->ReadByte(); break; case 0x22: // Visual effect rvi->visual_effect = buf->ReadByte(); /* Avoid accidentally setting visual_effect to the default value * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */ if (rvi->visual_effect == VE_DEFAULT) { assert(HasBit(rvi->visual_effect, VE_DISABLE_EFFECT)); SB(rvi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0); } break; case 0x23: // Powered wagons weight bonus rvi->pow_wag_weight = buf->ReadByte(); break; case 0x24: { // High byte of vehicle weight byte weight = buf->ReadByte(); if (weight > 4) { grfmsg(2, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring", weight << 8); } else { SB(rvi->weight, 8, 8, weight); } break; } case PROP_TRAIN_USER_DATA: // 0x25 User-defined bit mask to set when checking veh. var. 42 rvi->user_def_data = buf->ReadByte(); break; case 0x26: // Retire vehicle early ei->retire_early = buf->ReadByte(); break; case 0x27: // Miscellaneous flags ei->misc_flags = buf->ReadByte(); _loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC); _gted[e->index].prop27_set = true; break; case 0x28: // Cargo classes allowed _gted[e->index].cargo_allowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x29: // Cargo classes disallowed _gted[e->index].cargo_disallowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x2A: // Long format introduction date (days since year 0) ei->base_intro = buf->ReadDWord(); break; case PROP_TRAIN_CARGO_AGE_PERIOD: // 0x2B Cargo aging period ei->cargo_age_period = buf->ReadWord(); break; case 0x2C: // CTT refit include list case 0x2D: { // CTT refit exclude list uint8 count = buf->ReadByte(); while (count--) { CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile); if (ctype == CT_INVALID) continue; SetBit(prop == 0x2C ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype); } _gted[e->index].refitmask_valid = true; break; } default: ret = CommonVehicleChangeInfo(ei, prop, buf); break; } } return ret; } /** * Define properties for road vehicles * @param engine Local ID of the first vehicle. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult RoadVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur.grffile, VEH_ROAD, engine + i); if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles EngineInfo *ei = &e->info; RoadVehicleInfo *rvi = &e->u.road; switch (prop) { case 0x08: // Speed (1 unit is 0.5 kmh) rvi->max_speed = buf->ReadByte(); break; case PROP_ROADVEH_RUNNING_COST_FACTOR: // 0x09 Running cost factor rvi->running_cost = buf->ReadByte(); break; case 0x0A: // Running cost base ConvertTTDBasePrice(buf->ReadDWord(), "RoadVehicleChangeInfo", &rvi->running_cost_class); break; case 0x0E: { // Sprite ID uint8 spriteid = buf->ReadByte(); /* cars have different custom id in the GRF file */ if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; rvi->image_index = spriteid; break; } case PROP_ROADVEH_CARGO_CAPACITY: // 0x0F Cargo capacity rvi->capacity = buf->ReadByte(); break; case 0x10: { // Cargo type uint8 ctype = buf->ReadByte(); if (ctype == 0xFF) { /* 0xFF is specified as 'use first refittable' */ ei->cargo_type = CT_INVALID; } else if (_cur.grffile->grf_version >= 8) { /* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */ ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile); } else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) { /* Use untranslated cargo. */ ei->cargo_type = ctype; } else { ei->cargo_type = CT_INVALID; grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype); } break; } case PROP_ROADVEH_COST_FACTOR: // 0x11 Cost factor rvi->cost_factor = buf->ReadByte(); break; case 0x12: // SFX rvi->sfx = buf->ReadByte(); break; case PROP_ROADVEH_POWER: // Power in units of 10 HP. rvi->power = buf->ReadByte(); break; case PROP_ROADVEH_WEIGHT: // Weight in units of 1/4 tons. rvi->weight = buf->ReadByte(); break; case PROP_ROADVEH_SPEED: // Speed in mph/0.8 _gted[e->index].rv_max_speed = buf->ReadByte(); break; case 0x16: // Cargoes available for refitting ei->refit_mask = buf->ReadDWord(); _gted[e->index].refitmask_valid = true; _gted[e->index].refitmask_grf = _cur.grffile; break; case 0x17: // Callback mask ei->callback_mask = buf->ReadByte(); break; case PROP_ROADVEH_TRACTIVE_EFFORT: // Tractive effort coefficient in 1/256. rvi->tractive_effort = buf->ReadByte(); break; case 0x19: // Air drag rvi->air_drag = buf->ReadByte(); break; case 0x1A: // Refit cost ei->refit_cost = buf->ReadByte(); break; case 0x1B: // Retire vehicle early ei->retire_early = buf->ReadByte(); break; case 0x1C: // Miscellaneous flags ei->misc_flags = buf->ReadByte(); _loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC); break; case 0x1D: // Cargo classes allowed _gted[e->index].cargo_allowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x1E: // Cargo classes disallowed _gted[e->index].cargo_disallowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x1F: // Long format introduction date (days since year 0) ei->base_intro = buf->ReadDWord(); break; case 0x20: // Alter purchase list sort order AlterVehicleListOrder(e->index, buf->ReadExtendedByte()); break; case 0x21: // Visual effect rvi->visual_effect = buf->ReadByte(); /* Avoid accidentally setting visual_effect to the default value * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */ if (rvi->visual_effect == VE_DEFAULT) { assert(HasBit(rvi->visual_effect, VE_DISABLE_EFFECT)); SB(rvi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0); } break; case PROP_ROADVEH_CARGO_AGE_PERIOD: // 0x22 Cargo aging period ei->cargo_age_period = buf->ReadWord(); break; case PROP_ROADVEH_SHORTEN_FACTOR: // 0x23 Shorter vehicle rvi->shorten_factor = buf->ReadByte(); break; case 0x24: // CTT refit include list case 0x25: { // CTT refit exclude list uint8 count = buf->ReadByte(); while (count--) { CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile); if (ctype == CT_INVALID) continue; SetBit(prop == 0x24 ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype); } _gted[e->index].refitmask_valid = true; break; } default: ret = CommonVehicleChangeInfo(ei, prop, buf); break; } } return ret; } /** * Define properties for ships * @param engine Local ID of the first vehicle. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult ShipVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur.grffile, VEH_SHIP, engine + i); if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles EngineInfo *ei = &e->info; ShipVehicleInfo *svi = &e->u.ship; switch (prop) { case 0x08: { // Sprite ID uint8 spriteid = buf->ReadByte(); /* ships have different custom id in the GRF file */ if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; svi->image_index = spriteid; break; } case 0x09: // Refittable svi->old_refittable = (buf->ReadByte() != 0); break; case PROP_SHIP_COST_FACTOR: // 0x0A Cost factor svi->cost_factor = buf->ReadByte(); break; case PROP_SHIP_SPEED: // 0x0B Speed (1 unit is 0.5 km-ish/h) svi->max_speed = buf->ReadByte(); break; case 0x0C: { // Cargo type uint8 ctype = buf->ReadByte(); if (ctype == 0xFF) { /* 0xFF is specified as 'use first refittable' */ ei->cargo_type = CT_INVALID; } else if (_cur.grffile->grf_version >= 8) { /* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */ ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile); } else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) { /* Use untranslated cargo. */ ei->cargo_type = ctype; } else { ei->cargo_type = CT_INVALID; grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype); } break; } case PROP_SHIP_CARGO_CAPACITY: // 0x0D Cargo capacity svi->capacity = buf->ReadWord(); break; case PROP_SHIP_RUNNING_COST_FACTOR: // 0x0F Running cost factor svi->running_cost = buf->ReadByte(); break; case 0x10: // SFX svi->sfx = buf->ReadByte(); break; case 0x11: // Cargoes available for refitting ei->refit_mask = buf->ReadDWord(); _gted[e->index].refitmask_valid = true; _gted[e->index].refitmask_grf = _cur.grffile; break; case 0x12: // Callback mask ei->callback_mask = buf->ReadByte(); break; case 0x13: // Refit cost ei->refit_cost = buf->ReadByte(); break; case 0x14: // Ocean speed fraction svi->ocean_speed_frac = buf->ReadByte(); break; case 0x15: // Canal speed fraction svi->canal_speed_frac = buf->ReadByte(); break; case 0x16: // Retire vehicle early ei->retire_early = buf->ReadByte(); break; case 0x17: // Miscellaneous flags ei->misc_flags = buf->ReadByte(); _loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC); break; case 0x18: // Cargo classes allowed _gted[e->index].cargo_allowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x19: // Cargo classes disallowed _gted[e->index].cargo_disallowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x1A: // Long format introduction date (days since year 0) ei->base_intro = buf->ReadDWord(); break; case 0x1B: // Alter purchase list sort order AlterVehicleListOrder(e->index, buf->ReadExtendedByte()); break; case 0x1C: // Visual effect svi->visual_effect = buf->ReadByte(); /* Avoid accidentally setting visual_effect to the default value * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */ if (svi->visual_effect == VE_DEFAULT) { assert(HasBit(svi->visual_effect, VE_DISABLE_EFFECT)); SB(svi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0); } break; case PROP_SHIP_CARGO_AGE_PERIOD: // 0x1D Cargo aging period ei->cargo_age_period = buf->ReadWord(); break; case 0x1E: // CTT refit include list case 0x1F: { // CTT refit exclude list uint8 count = buf->ReadByte(); while (count--) { CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile); if (ctype == CT_INVALID) continue; SetBit(prop == 0x1E ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype); } _gted[e->index].refitmask_valid = true; break; } default: ret = CommonVehicleChangeInfo(ei, prop, buf); break; } } return ret; } /** * Define properties for aircraft * @param engine Local ID of the aircraft. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur.grffile, VEH_AIRCRAFT, engine + i); if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles EngineInfo *ei = &e->info; AircraftVehicleInfo *avi = &e->u.air; switch (prop) { case 0x08: { // Sprite ID uint8 spriteid = buf->ReadByte(); /* aircraft have different custom id in the GRF file */ if (spriteid == 0xFF) spriteid = 0xFD; if (spriteid < 0xFD) spriteid >>= 1; avi->image_index = spriteid; break; } case 0x09: // Helicopter if (buf->ReadByte() == 0) { avi->subtype = AIR_HELI; } else { SB(avi->subtype, 0, 1, 1); // AIR_CTOL } break; case 0x0A: // Large SB(avi->subtype, 1, 1, (buf->ReadByte() != 0 ? 1 : 0)); // AIR_FAST break; case PROP_AIRCRAFT_COST_FACTOR: // 0x0B Cost factor avi->cost_factor = buf->ReadByte(); break; case PROP_AIRCRAFT_SPEED: // 0x0C Speed (1 unit is 8 mph, we translate to 1 unit is 1 km-ish/h) avi->max_speed = (buf->ReadByte() * 128) / 10; break; case 0x0D: // Acceleration avi->acceleration = (buf->ReadByte() * 128) / 10; break; case PROP_AIRCRAFT_RUNNING_COST_FACTOR: // 0x0E Running cost factor avi->running_cost = buf->ReadByte(); break; case PROP_AIRCRAFT_PASSENGER_CAPACITY: // 0x0F Passenger capacity avi->passenger_capacity = buf->ReadWord(); break; case PROP_AIRCRAFT_MAIL_CAPACITY: // 0x11 Mail capacity avi->mail_capacity = buf->ReadByte(); break; case 0x12: // SFX avi->sfx = buf->ReadByte(); break; case 0x13: // Cargoes available for refitting ei->refit_mask = buf->ReadDWord(); _gted[e->index].refitmask_valid = true; _gted[e->index].refitmask_grf = _cur.grffile; break; case 0x14: // Callback mask ei->callback_mask = buf->ReadByte(); break; case 0x15: // Refit cost ei->refit_cost = buf->ReadByte(); break; case 0x16: // Retire vehicle early ei->retire_early = buf->ReadByte(); break; case 0x17: // Miscellaneous flags ei->misc_flags = buf->ReadByte(); _loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC); break; case 0x18: // Cargo classes allowed _gted[e->index].cargo_allowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x19: // Cargo classes disallowed _gted[e->index].cargo_disallowed = buf->ReadWord(); _gted[e->index].refitmask_valid = true; break; case 0x1A: // Long format introduction date (days since year 0) ei->base_intro = buf->ReadDWord(); break; case 0x1B: // Alter purchase list sort order AlterVehicleListOrder(e->index, buf->ReadExtendedByte()); break; case PROP_AIRCRAFT_CARGO_AGE_PERIOD: // 0x1C Cargo aging period ei->cargo_age_period = buf->ReadWord(); break; case 0x1D: // CTT refit include list case 0x1E: { // CTT refit exclude list uint8 count = buf->ReadByte(); while (count--) { CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile); if (ctype == CT_INVALID) continue; SetBit(prop == 0x1D ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype); } _gted[e->index].refitmask_valid = true; break; } case PROP_AIRCRAFT_RANGE: // 0x1F Max aircraft range avi->max_range = buf->ReadWord(); break; default: ret = CommonVehicleChangeInfo(ei, prop, buf); break; } } return ret; } /** * Define properties for stations * @param stdid StationID of the first station tile. * @param numinfo Number of subsequent station tiles to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (stid + numinfo > MAX_STATIONS) { grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS); return CIR_INVALID_ID; } /* Allocate station specs if necessary */ if (_cur.grffile->stations == NULL) _cur.grffile->stations = CallocT(MAX_STATIONS); for (int i = 0; i < numinfo; i++) { StationSpec *statspec = _cur.grffile->stations[stid + i]; /* Check that the station we are modifying is defined. */ if (statspec == NULL && prop != 0x08) { grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i); return CIR_INVALID_ID; } switch (prop) { case 0x08: { // Class ID StationSpec **spec = &_cur.grffile->stations[stid + i]; /* Property 0x08 is special; it is where the station is allocated */ if (*spec == NULL) *spec = CallocT(1); /* Swap classid because we read it in BE meaning WAYP or DFLT */ uint32 classid = buf->ReadDWord(); (*spec)->cls_id = StationClass::Allocate(BSWAP32(classid)); break; } case 0x09: // Define sprite layout statspec->tiles = buf->ReadExtendedByte(); delete[] statspec->renderdata; // delete earlier loaded stuff statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles]; for (uint t = 0; t < statspec->tiles; t++) { NewGRFSpriteLayout *dts = &statspec->renderdata[t]; dts->consistent_max_offset = UINT16_MAX; // Spritesets are unknown, so no limit. if (buf->HasData(4) && *(uint32*)buf->Data() == 0) { buf->Skip(4); extern const DrawTileSprites _station_display_datas_rail[8]; dts->Clone(&_station_display_datas_rail[t % 8]); continue; } ReadSpriteLayoutSprite(buf, false, false, false, GSF_STATIONS, &dts->ground); /* On error, bail out immediately. Temporary GRF data was already freed */ if (_cur.skip_sprites < 0) return CIR_DISABLED; static SmallVector tmp_layout; tmp_layout.Clear(); for (;;) { /* no relative bounding box support */ DrawTileSeqStruct *dtss = tmp_layout.Append(); MemSetT(dtss, 0); dtss->delta_x = buf->ReadByte(); if (dtss->IsTerminator()) break; dtss->delta_y = buf->ReadByte(); dtss->delta_z = buf->ReadByte(); dtss->size_x = buf->ReadByte(); dtss->size_y = buf->ReadByte(); dtss->size_z = buf->ReadByte(); ReadSpriteLayoutSprite(buf, false, true, false, GSF_STATIONS, &dtss->image); /* On error, bail out immediately. Temporary GRF data was already freed */ if (_cur.skip_sprites < 0) return CIR_DISABLED; } dts->Clone(tmp_layout.Begin()); } break; case 0x0A: { // Copy sprite layout byte srcid = buf->ReadByte(); const StationSpec *srcstatspec = _cur.grffile->stations[srcid]; if (srcstatspec == NULL) { grfmsg(1, "StationChangeInfo: Station %u is not defined, cannot copy sprite layout to %u.", srcid, stid + i); continue; } delete[] statspec->renderdata; // delete earlier loaded stuff statspec->tiles = srcstatspec->tiles; statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles]; for (uint t = 0; t < statspec->tiles; t++) { statspec->renderdata[t].Clone(&srcstatspec->renderdata[t]); } break; } case 0x0B: // Callback mask statspec->callback_mask = buf->ReadByte(); break; case 0x0C: // Disallowed number of platforms statspec->disallowed_platforms = buf->ReadByte(); break; case 0x0D: // Disallowed platform lengths statspec->disallowed_lengths = buf->ReadByte(); break; case 0x0E: // Define custom layout statspec->copied_layouts = false; while (buf->HasData()) { byte length = buf->ReadByte(); byte number = buf->ReadByte(); StationLayout layout; uint l, p; if (length == 0 || number == 0) break; if (length > statspec->lengths) { statspec->platforms = ReallocT(statspec->platforms, length); memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths); statspec->layouts = ReallocT(statspec->layouts, length); memset(statspec->layouts + statspec->lengths, 0, (length - statspec->lengths) * sizeof(*statspec->layouts)); statspec->lengths = length; } l = length - 1; // index is zero-based if (number > statspec->platforms[l]) { statspec->layouts[l] = ReallocT(statspec->layouts[l], number); /* We expect NULL being 0 here, but C99 guarantees that. */ memset(statspec->layouts[l] + statspec->platforms[l], 0, (number - statspec->platforms[l]) * sizeof(**statspec->layouts)); statspec->platforms[l] = number; } p = 0; layout = MallocT(length * number); try { for (l = 0; l < length; l++) { for (p = 0; p < number; p++) { layout[l * number + p] = buf->ReadByte(); } } } catch (...) { free(layout); throw; } l--; p--; free(statspec->layouts[l][p]); statspec->layouts[l][p] = layout; } break; case 0x0F: { // Copy custom layout byte srcid = buf->ReadByte(); const StationSpec *srcstatspec = _cur.grffile->stations[srcid]; if (srcstatspec == NULL) { grfmsg(1, "StationChangeInfo: Station %u is not defined, cannot copy tile layout to %u.", srcid, stid + i); continue; } statspec->lengths = srcstatspec->lengths; statspec->platforms = srcstatspec->platforms; statspec->layouts = srcstatspec->layouts; statspec->copied_layouts = true; break; } case 0x10: // Little/lots cargo threshold statspec->cargo_threshold = buf->ReadWord(); break; case 0x11: // Pylon placement statspec->pylons = buf->ReadByte(); break; case 0x12: // Cargo types for random triggers statspec->cargo_triggers = buf->ReadDWord(); break; case 0x13: // General flags statspec->flags = buf->ReadByte(); break; case 0x14: // Overhead wire placement statspec->wires = buf->ReadByte(); break; case 0x15: // Blocked tiles statspec->blocked = buf->ReadByte(); break; case 0x16: // Animation info statspec->animation.frames = buf->ReadByte(); statspec->animation.status = buf->ReadByte(); break; case 0x17: // Animation speed statspec->animation.speed = buf->ReadByte(); break; case 0x18: // Animation triggers statspec->animation.triggers = buf->ReadWord(); break; case 0x1A: // Advanced sprite layout statspec->tiles = buf->ReadExtendedByte(); delete[] statspec->renderdata; // delete earlier loaded stuff statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles]; for (uint t = 0; t < statspec->tiles; t++) { NewGRFSpriteLayout *dts = &statspec->renderdata[t]; uint num_building_sprites = buf->ReadByte(); /* On error, bail out immediately. Temporary GRF data was already freed */ if (ReadSpriteLayout(buf, num_building_sprites, false, GSF_STATIONS, true, false, dts)) return CIR_DISABLED; } break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Define properties for water features * @param id Type of the first water feature. * @param numinfo Number of subsequent water feature ids to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult CanalChangeInfo(uint id, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (id + numinfo > CF_END) { grfmsg(1, "CanalChangeInfo: Canal feature %u is invalid, max %u, ignoreing", id + numinfo, CF_END); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { CanalProperties *cp = &_cur.grffile->canal_local_properties[id + i]; switch (prop) { case 0x08: cp->callback_mask = buf->ReadByte(); break; case 0x09: cp->flags = buf->ReadByte(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Define properties for bridges * @param brid BridgeID of the bridge. * @param numinfo Number of subsequent bridgeIDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult BridgeChangeInfo(uint brid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (brid + numinfo > MAX_BRIDGES) { grfmsg(1, "BridgeChangeInfo: Bridge %u is invalid, max %u, ignoring", brid + numinfo, MAX_BRIDGES); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { BridgeSpec *bridge = &_bridge[brid + i]; switch (prop) { case 0x08: { // Year of availability /* We treat '0' as always available */ byte year = buf->ReadByte(); bridge->avail_year = (year > 0 ? ORIGINAL_BASE_YEAR + year : 0); break; } case 0x09: // Minimum length bridge->min_length = buf->ReadByte(); break; case 0x0A: // Maximum length bridge->max_length = buf->ReadByte(); if (bridge->max_length > 16) bridge->max_length = 0xFFFF; break; case 0x0B: // Cost factor bridge->price = buf->ReadByte(); break; case 0x0C: // Maximum speed bridge->speed = buf->ReadWord(); break; case 0x0D: { // Bridge sprite tables byte tableid = buf->ReadByte(); byte numtables = buf->ReadByte(); if (bridge->sprite_table == NULL) { /* Allocate memory for sprite table pointers and zero out */ bridge->sprite_table = CallocT(7); } for (; numtables-- != 0; tableid++) { if (tableid >= 7) { // skip invalid data grfmsg(1, "BridgeChangeInfo: Table %d >= 7, skipping", tableid); for (byte sprite = 0; sprite < 32; sprite++) buf->ReadDWord(); continue; } if (bridge->sprite_table[tableid] == NULL) { bridge->sprite_table[tableid] = MallocT(32); } for (byte sprite = 0; sprite < 32; sprite++) { SpriteID image = buf->ReadWord(); PaletteID pal = buf->ReadWord(); bridge->sprite_table[tableid][sprite].sprite = image; bridge->sprite_table[tableid][sprite].pal = pal; MapSpriteMappingRecolour(&bridge->sprite_table[tableid][sprite]); } } break; } case 0x0E: // Flags; bit 0 - disable far pillars bridge->flags = buf->ReadByte(); break; case 0x0F: // Long format year of availability (year since year 0) bridge->avail_year = Clamp(buf->ReadDWord(), MIN_YEAR, MAX_YEAR); break; case 0x10: { // purchase string StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord()); if (newone != STR_UNDEFINED) bridge->material = newone; break; } case 0x11: // description of bridge with rails or roads case 0x12: { StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord()); if (newone != STR_UNDEFINED) bridge->transport_name[prop - 0x11] = newone; break; } case 0x13: // 16 bits cost multiplier bridge->price = buf->ReadWord(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Ignore a house property * @param prop Property to read. * @param buf Property value. * @return ChangeInfoResult. */ static ChangeInfoResult IgnoreTownHouseProperty(int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; switch (prop) { case 0x09: case 0x0B: case 0x0C: case 0x0D: case 0x0E: case 0x0F: case 0x11: case 0x14: case 0x15: case 0x16: case 0x18: case 0x19: case 0x1A: case 0x1B: case 0x1C: case 0x1D: case 0x1F: buf->ReadByte(); break; case 0x0A: case 0x10: case 0x12: case 0x13: case 0x21: case 0x22: buf->ReadWord(); break; case 0x1E: buf->ReadDWord(); break; case 0x17: for (uint j = 0; j < 4; j++) buf->ReadByte(); break; case 0x20: { byte count = buf->ReadByte(); for (byte j = 0; j < count; j++) buf->ReadByte(); break; } default: ret = CIR_UNKNOWN; break; } return ret; } /** * Define properties for houses * @param hid HouseID of the house. * @param numinfo Number of subsequent houseIDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult TownHouseChangeInfo(uint hid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (hid + numinfo > HOUSE_MAX) { grfmsg(1, "TownHouseChangeInfo: Too many houses loaded (%u), max (%u). Ignoring.", hid + numinfo, HOUSE_MAX); return CIR_INVALID_ID; } /* Allocate house specs if they haven't been allocated already. */ if (_cur.grffile->housespec == NULL) { _cur.grffile->housespec = CallocT(HOUSE_MAX); } for (int i = 0; i < numinfo; i++) { HouseSpec *housespec = _cur.grffile->housespec[hid + i]; if (prop != 0x08 && housespec == NULL) { /* If the house property 08 is not yet set, ignore this property */ ChangeInfoResult cir = IgnoreTownHouseProperty(prop, buf); if (cir > ret) ret = cir; continue; } switch (prop) { case 0x08: { // Substitute building type, and definition of a new house HouseSpec **house = &_cur.grffile->housespec[hid + i]; byte subs_id = buf->ReadByte(); if (subs_id == 0xFF) { /* Instead of defining a new house, a substitute house id * of 0xFF disables the old house with the current id. */ HouseSpec::Get(hid + i)->enabled = false; continue; } else if (subs_id >= NEW_HOUSE_OFFSET) { /* The substitute id must be one of the original houses. */ grfmsg(2, "TownHouseChangeInfo: Attempt to use new house %u as substitute house for %u. Ignoring.", subs_id, hid + i); continue; } /* Allocate space for this house. */ if (*house == NULL) *house = CallocT(1); housespec = *house; MemCpyT(housespec, HouseSpec::Get(subs_id)); housespec->enabled = true; housespec->grf_prop.local_id = hid + i; housespec->grf_prop.subst_id = subs_id; housespec->grf_prop.grffile = _cur.grffile; housespec->random_colour[0] = 0x04; // those 4 random colours are the base colour housespec->random_colour[1] = 0x08; // for all new houses housespec->random_colour[2] = 0x0C; // they stand for red, blue, orange and green housespec->random_colour[3] = 0x06; /* Make sure that the third cargo type is valid in this * climate. This can cause problems when copying the properties * of a house that accepts food, where the new house is valid * in the temperate climate. */ if (!CargoSpec::Get(housespec->accepts_cargo[2])->IsValid()) { housespec->cargo_acceptance[2] = 0; } _loaded_newgrf_features.has_newhouses = true; break; } case 0x09: // Building flags housespec->building_flags = (BuildingFlags)buf->ReadByte(); break; case 0x0A: { // Availability years uint16 years = buf->ReadWord(); housespec->min_year = GB(years, 0, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 0, 8); housespec->max_year = GB(years, 8, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 8, 8); break; } case 0x0B: // Population housespec->population = buf->ReadByte(); break; case 0x0C: // Mail generation multiplier housespec->mail_generation = buf->ReadByte(); break; case 0x0D: // Passenger acceptance case 0x0E: // Mail acceptance housespec->cargo_acceptance[prop - 0x0D] = buf->ReadByte(); break; case 0x0F: { // Goods/candy, food/fizzy drinks acceptance int8 goods = buf->ReadByte(); /* If value of goods is negative, it means in fact food or, if in toyland, fizzy_drink acceptance. * Else, we have "standard" 3rd cargo type, goods or candy, for toyland once more */ CargoID cid = (goods >= 0) ? ((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_CANDY : CT_GOODS) : ((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_FIZZY_DRINKS : CT_FOOD); /* Make sure the cargo type is valid in this climate. */ if (!CargoSpec::Get(cid)->IsValid()) goods = 0; housespec->accepts_cargo[2] = cid; housespec->cargo_acceptance[2] = abs(goods); // but we do need positive value here break; } case 0x10: // Local authority rating decrease on removal housespec->remove_rating_decrease = buf->ReadWord(); break; case 0x11: // Removal cost multiplier housespec->removal_cost = buf->ReadByte(); break; case 0x12: // Building name ID housespec->building_name = buf->ReadWord(); _string_to_grf_mapping[&housespec->building_name] = _cur.grffile->grfid; break; case 0x13: // Building availability mask housespec->building_availability = (HouseZones)buf->ReadWord(); break; case 0x14: // House callback mask housespec->callback_mask |= buf->ReadByte(); break; case 0x15: { // House override byte byte override = buf->ReadByte(); /* The house being overridden must be an original house. */ if (override >= NEW_HOUSE_OFFSET) { grfmsg(2, "TownHouseChangeInfo: Attempt to override new house %u with house id %u. Ignoring.", override, hid + i); continue; } _house_mngr.Add(hid + i, _cur.grffile->grfid, override); break; } case 0x16: // Periodic refresh multiplier housespec->processing_time = min(buf->ReadByte(), 63); break; case 0x17: // Four random colours to use for (uint j = 0; j < 4; j++) housespec->random_colour[j] = buf->ReadByte(); break; case 0x18: // Relative probability of appearing housespec->probability = buf->ReadByte(); break; case 0x19: // Extra flags housespec->extra_flags = (HouseExtraFlags)buf->ReadByte(); break; case 0x1A: // Animation frames housespec->animation.frames = buf->ReadByte(); housespec->animation.status = GB(housespec->animation.frames, 7, 1); SB(housespec->animation.frames, 7, 1, 0); break; case 0x1B: // Animation speed housespec->animation.speed = Clamp(buf->ReadByte(), 2, 16); break; case 0x1C: // Class of the building type housespec->class_id = AllocateHouseClassID(buf->ReadByte(), _cur.grffile->grfid); break; case 0x1D: // Callback mask part 2 housespec->callback_mask |= (buf->ReadByte() << 8); break; case 0x1E: { // Accepted cargo types uint32 cargotypes = buf->ReadDWord(); /* Check if the cargo types should not be changed */ if (cargotypes == 0xFFFFFFFF) break; for (uint j = 0; j < 3; j++) { /* Get the cargo number from the 'list' */ uint8 cargo_part = GB(cargotypes, 8 * j, 8); CargoID cargo = GetCargoTranslation(cargo_part, _cur.grffile); if (cargo == CT_INVALID) { /* Disable acceptance of invalid cargo type */ housespec->cargo_acceptance[j] = 0; } else { housespec->accepts_cargo[j] = cargo; } } break; } case 0x1F: // Minimum life span housespec->minimum_life = buf->ReadByte(); break; case 0x20: { // Cargo acceptance watch list byte count = buf->ReadByte(); for (byte j = 0; j < count; j++) { CargoID cargo = GetCargoTranslation(buf->ReadByte(), _cur.grffile); if (cargo != CT_INVALID) SetBit(housespec->watched_cargoes, cargo); } break; } case 0x21: // long introduction year housespec->min_year = buf->ReadWord(); break; case 0x22: // long maximum year housespec->max_year = buf->ReadWord(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Get the language map associated with a given NewGRF and language. * @param grfid The NewGRF to get the map for. * @param language_id The (NewGRF) language ID to get the map for. * @return The LanguageMap, or NULL if it couldn't be found. */ /* static */ const LanguageMap *LanguageMap::GetLanguageMap(uint32 grfid, uint8 language_id) { /* LanguageID "MAX_LANG", i.e. 7F is any. This language can't have a gender/case mapping, but has to be handled gracefully. */ const GRFFile *grffile = GetFileByGRFID(grfid); return (grffile != NULL && grffile->language_map != NULL && language_id < MAX_LANG) ? &grffile->language_map[language_id] : NULL; } /** * Define properties for global variables * @param gvid ID of the global variable. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult GlobalVarChangeInfo(uint gvid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { switch (prop) { case 0x08: { // Cost base factor int factor = buf->ReadByte(); uint price = gvid + i; if (price < PR_END) { _cur.grffile->price_base_multipliers[price] = min(factor - 8, MAX_PRICE_MODIFIER); } else { grfmsg(1, "GlobalVarChangeInfo: Price %d out of range, ignoring", price); } break; } case 0x09: // Cargo translation table /* This is loaded during the reservation stage, so just skip it here. */ /* Each entry is 4 bytes. */ buf->Skip(4); break; case 0x0A: { // Currency display names uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord()); if ((newone != STR_UNDEFINED) && (curidx < NUM_CURRENCY)) { _currency_specs[curidx].name = newone; } break; } case 0x0B: { // Currency multipliers uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 rate = buf->ReadDWord(); if (curidx < NUM_CURRENCY) { /* TTDPatch uses a multiple of 1000 for its conversion calculations, * which OTTD does not. For this reason, divide grf value by 1000, * to be compatible */ _currency_specs[curidx].rate = rate / 1000; } else { grfmsg(1, "GlobalVarChangeInfo: Currency multipliers %d out of range, ignoring", curidx); } break; } case 0x0C: { // Currency options uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint16 options = buf->ReadWord(); if (curidx < NUM_CURRENCY) { _currency_specs[curidx].separator[0] = GB(options, 0, 8); _currency_specs[curidx].separator[1] = '\0'; /* By specifying only one bit, we prevent errors, * since newgrf specs said that only 0 and 1 can be set for symbol_pos */ _currency_specs[curidx].symbol_pos = GB(options, 8, 1); } else { grfmsg(1, "GlobalVarChangeInfo: Currency option %d out of range, ignoring", curidx); } break; } case 0x0D: { // Currency prefix symbol uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 tempfix = buf->ReadDWord(); if (curidx < NUM_CURRENCY) { memcpy(_currency_specs[curidx].prefix, &tempfix, 4); _currency_specs[curidx].prefix[4] = 0; } else { grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx); } break; } case 0x0E: { // Currency suffix symbol uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); uint32 tempfix = buf->ReadDWord(); if (curidx < NUM_CURRENCY) { memcpy(&_currency_specs[curidx].suffix, &tempfix, 4); _currency_specs[curidx].suffix[4] = 0; } else { grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx); } break; } case 0x0F: { // Euro introduction dates uint curidx = GetNewgrfCurrencyIdConverted(gvid + i); Year year_euro = buf->ReadWord(); if (curidx < NUM_CURRENCY) { _currency_specs[curidx].to_euro = year_euro; } else { grfmsg(1, "GlobalVarChangeInfo: Euro intro date %d out of range, ignoring", curidx); } break; } case 0x10: // Snow line height table if (numinfo > 1 || IsSnowLineSet()) { grfmsg(1, "GlobalVarChangeInfo: The snowline can only be set once (%d)", numinfo); } else if (buf->Remaining() < SNOW_LINE_MONTHS * SNOW_LINE_DAYS) { grfmsg(1, "GlobalVarChangeInfo: Not enough entries set in the snowline table (" PRINTF_SIZE ")", buf->Remaining()); } else { byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS]; for (uint i = 0; i < SNOW_LINE_MONTHS; i++) { for (uint j = 0; j < SNOW_LINE_DAYS; j++) { table[i][j] = buf->ReadByte(); if (_cur.grffile->grf_version >= 8) { if (table[i][j] != 0xFF) table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 256; } else { if (table[i][j] >= 128) { /* no snow */ table[i][j] = 0xFF; } else { table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 128; } } } } SetSnowLine(table); } break; case 0x11: // GRF match for engine allocation /* This is loaded during the reservation stage, so just skip it here. */ /* Each entry is 8 bytes. */ buf->Skip(8); break; case 0x12: // Rail type translation table /* This is loaded during the reservation stage, so just skip it here. */ /* Each entry is 4 bytes. */ buf->Skip(4); break; case 0x13: // Gender translation table case 0x14: // Case translation table case 0x15: { // Plural form translation uint curidx = gvid + i; // The current index, i.e. language. const LanguageMetadata *lang = curidx < MAX_LANG ? GetLanguage(curidx) : NULL; if (lang == NULL) { grfmsg(1, "GlobalVarChangeInfo: Language %d is not known, ignoring", curidx); /* Skip over the data. */ if (prop == 0x15) { buf->ReadByte(); } else { while (buf->ReadByte() != 0) { buf->ReadString(); } } break; } if (_cur.grffile->language_map == NULL) _cur.grffile->language_map = new LanguageMap[MAX_LANG]; if (prop == 0x15) { uint plural_form = buf->ReadByte(); if (plural_form >= LANGUAGE_MAX_PLURAL) { grfmsg(1, "GlobalVarChanceInfo: Plural form %d is out of range, ignoring", plural_form); } else { _cur.grffile->language_map[curidx].plural_form = plural_form; } break; } byte newgrf_id = buf->ReadByte(); // The NewGRF (custom) identifier. while (newgrf_id != 0) { const char *name = buf->ReadString(); // The name for the OpenTTD identifier. /* We'll just ignore the UTF8 identifier character. This is (fairly) * safe as OpenTTD's strings gender/cases are usually in ASCII which * is just a subset of UTF8, or they need the bigger UTF8 characters * such as Cyrillic. Thus we will simply assume they're all UTF8. */ WChar c; size_t len = Utf8Decode(&c, name); if (c == NFO_UTF8_IDENTIFIER) name += len; LanguageMap::Mapping map; map.newgrf_id = newgrf_id; if (prop == 0x13) { map.openttd_id = lang->GetGenderIndex(name); if (map.openttd_id >= MAX_NUM_GENDERS) { grfmsg(1, "GlobalVarChangeInfo: Gender name %s is not known, ignoring", name); } else { *_cur.grffile->language_map[curidx].gender_map.Append() = map; } } else { map.openttd_id = lang->GetCaseIndex(name); if (map.openttd_id >= MAX_NUM_CASES) { grfmsg(1, "GlobalVarChangeInfo: Case name %s is not known, ignoring", name); } else { *_cur.grffile->language_map[curidx].case_map.Append() = map; } } newgrf_id = buf->ReadByte(); } break; } default: ret = CIR_UNKNOWN; break; } } return ret; } static ChangeInfoResult GlobalVarReserveInfo(uint gvid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { switch (prop) { case 0x08: // Cost base factor case 0x15: // Plural form translation buf->ReadByte(); break; case 0x09: { // Cargo Translation Table if (i == 0) { if (gvid != 0) { grfmsg(1, "ReserveChangeInfo: Cargo translation table must start at zero"); return CIR_INVALID_ID; } free(_cur.grffile->cargo_list); _cur.grffile->cargo_max = numinfo; _cur.grffile->cargo_list = MallocT(numinfo); } CargoLabel cl = buf->ReadDWord(); _cur.grffile->cargo_list[i] = BSWAP32(cl); break; } case 0x0A: // Currency display names case 0x0C: // Currency options case 0x0F: // Euro introduction dates buf->ReadWord(); break; case 0x0B: // Currency multipliers case 0x0D: // Currency prefix symbol case 0x0E: // Currency suffix symbol buf->ReadDWord(); break; case 0x10: // Snow line height table buf->Skip(SNOW_LINE_MONTHS * SNOW_LINE_DAYS); break; case 0x11: { // GRF match for engine allocation uint32 s = buf->ReadDWord(); uint32 t = buf->ReadDWord(); SetNewGRFOverride(s, t); break; } case 0x12: { // Rail type translation table if (i == 0) { if (gvid != 0) { grfmsg(1, "ReserveChangeInfo: Rail type translation table must start at zero"); return CIR_INVALID_ID; } free(_cur.grffile->railtype_list); _cur.grffile->railtype_max = numinfo; _cur.grffile->railtype_list = MallocT(numinfo); } RailTypeLabel rtl = buf->ReadDWord(); _cur.grffile->railtype_list[i] = BSWAP32(rtl); break; } case 0x13: // Gender translation table case 0x14: // Case translation table while (buf->ReadByte() != 0) { buf->ReadString(); } break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Define properties for cargoes * @param cid Local ID of the cargo. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult CargoChangeInfo(uint cid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (cid + numinfo > NUM_CARGO) { grfmsg(2, "CargoChangeInfo: Cargo type %d out of range (max %d)", cid + numinfo, NUM_CARGO - 1); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { CargoSpec *cs = CargoSpec::Get(cid + i); switch (prop) { case 0x08: // Bit number of cargo cs->bitnum = buf->ReadByte(); if (cs->IsValid()) { cs->grffile = _cur.grffile; SetBit(_cargo_mask, cid + i); } else { ClrBit(_cargo_mask, cid + i); } break; case 0x09: // String ID for cargo type name cs->name = buf->ReadWord(); _string_to_grf_mapping[&cs->name] = _cur.grffile->grfid; break; case 0x0A: // String for 1 unit of cargo cs->name_single = buf->ReadWord(); _string_to_grf_mapping[&cs->name_single] = _cur.grffile->grfid; break; case 0x0B: // String for singular quantity of cargo (e.g. 1 tonne of coal) case 0x1B: // String for cargo units /* String for units of cargo. This is different in OpenTTD * (e.g. tonnes) to TTDPatch (e.g. {COMMA} tonne of coal). * Property 1B is used to set OpenTTD's behaviour. */ cs->units_volume = buf->ReadWord(); _string_to_grf_mapping[&cs->units_volume] = _cur.grffile->grfid; break; case 0x0C: // String for plural quantity of cargo (e.g. 10 tonnes of coal) case 0x1C: // String for any amount of cargo /* Strings for an amount of cargo. This is different in OpenTTD * (e.g. {WEIGHT} of coal) to TTDPatch (e.g. {COMMA} tonnes of coal). * Property 1C is used to set OpenTTD's behaviour. */ cs->quantifier = buf->ReadWord(); _string_to_grf_mapping[&cs->quantifier] = _cur.grffile->grfid; break; case 0x0D: // String for two letter cargo abbreviation cs->abbrev = buf->ReadWord(); _string_to_grf_mapping[&cs->abbrev] = _cur.grffile->grfid; break; case 0x0E: // Sprite ID for cargo icon cs->sprite = buf->ReadWord(); break; case 0x0F: // Weight of one unit of cargo cs->weight = buf->ReadByte(); break; case 0x10: // Used for payment calculation cs->transit_days[0] = buf->ReadByte(); break; case 0x11: // Used for payment calculation cs->transit_days[1] = buf->ReadByte(); break; case 0x12: // Base cargo price cs->initial_payment = buf->ReadDWord(); break; case 0x13: // Colour for station rating bars cs->rating_colour = buf->ReadByte(); break; case 0x14: // Colour for cargo graph cs->legend_colour = buf->ReadByte(); break; case 0x15: // Freight status cs->is_freight = (buf->ReadByte() != 0); break; case 0x16: // Cargo classes cs->classes = buf->ReadWord(); break; case 0x17: // Cargo label cs->label = buf->ReadDWord(); cs->label = BSWAP32(cs->label); break; case 0x18: { // Town growth substitute type uint8 substitute_type = buf->ReadByte(); switch (substitute_type) { case 0x00: cs->town_effect = TE_PASSENGERS; break; case 0x02: cs->town_effect = TE_MAIL; break; case 0x05: cs->town_effect = TE_GOODS; break; case 0x09: cs->town_effect = TE_WATER; break; case 0x0B: cs->town_effect = TE_FOOD; break; default: grfmsg(1, "CargoChangeInfo: Unknown town growth substitute value %d, setting to none.", substitute_type); case 0xFF: cs->town_effect = TE_NONE; break; } break; } case 0x19: // Town growth coefficient cs->multipliertowngrowth = buf->ReadWord(); break; case 0x1A: // Bitmask of callbacks to use cs->callback_mask = buf->ReadByte(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Define properties for sound effects * @param sid Local ID of the sound. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult SoundEffectChangeInfo(uint sid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (_cur.grffile->sound_offset == 0) { grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping"); return CIR_INVALID_ID; } if (sid + numinfo - ORIGINAL_SAMPLE_COUNT > _cur.grffile->num_sounds) { grfmsg(1, "SoundEffectChangeInfo: Attemting to change undefined sound effect (%u), max (%u). Ignoring.", sid + numinfo, ORIGINAL_SAMPLE_COUNT + _cur.grffile->num_sounds); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { SoundEntry *sound = GetSound(sid + i + _cur.grffile->sound_offset - ORIGINAL_SAMPLE_COUNT); switch (prop) { case 0x08: // Relative volume sound->volume = buf->ReadByte(); break; case 0x09: // Priority sound->priority = buf->ReadByte(); break; case 0x0A: { // Override old sound SoundID orig_sound = buf->ReadByte(); if (orig_sound >= ORIGINAL_SAMPLE_COUNT) { grfmsg(1, "SoundEffectChangeInfo: Original sound %d not defined (max %d)", orig_sound, ORIGINAL_SAMPLE_COUNT); } else { SoundEntry *old_sound = GetSound(orig_sound); /* Literally copy the data of the new sound over the original */ *old_sound = *sound; } break; } default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Ignore an industry tile property * @param prop The property to ignore. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult IgnoreIndustryTileProperty(int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; switch (prop) { case 0x09: case 0x0D: case 0x0E: case 0x10: case 0x11: case 0x12: buf->ReadByte(); break; case 0x0A: case 0x0B: case 0x0C: case 0x0F: buf->ReadWord(); break; default: ret = CIR_UNKNOWN; break; } return ret; } /** * Define properties for industry tiles * @param indtid Local ID of the industry tile. * @param numinfo Number of subsequent industry tile IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (indtid + numinfo > NUM_INDUSTRYTILES) { grfmsg(1, "IndustryTilesChangeInfo: Too many industry tiles loaded (%u), max (%u). Ignoring.", indtid + numinfo, NUM_INDUSTRYTILES); return CIR_INVALID_ID; } /* Allocate industry tile specs if they haven't been allocated already. */ if (_cur.grffile->indtspec == NULL) { _cur.grffile->indtspec = CallocT(NUM_INDUSTRYTILES); } for (int i = 0; i < numinfo; i++) { IndustryTileSpec *tsp = _cur.grffile->indtspec[indtid + i]; if (prop != 0x08 && tsp == NULL) { ChangeInfoResult cir = IgnoreIndustryTileProperty(prop, buf); if (cir > ret) ret = cir; continue; } switch (prop) { case 0x08: { // Substitute industry tile type IndustryTileSpec **tilespec = &_cur.grffile->indtspec[indtid + i]; byte subs_id = buf->ReadByte(); if (subs_id >= NEW_INDUSTRYTILEOFFSET) { /* The substitute id must be one of the original industry tile. */ grfmsg(2, "IndustryTilesChangeInfo: Attempt to use new industry tile %u as substitute industry tile for %u. Ignoring.", subs_id, indtid + i); continue; } /* Allocate space for this industry. */ if (*tilespec == NULL) { *tilespec = CallocT(1); tsp = *tilespec; memcpy(tsp, &_industry_tile_specs[subs_id], sizeof(_industry_tile_specs[subs_id])); tsp->enabled = true; /* A copied tile should not have the animation infos copied too. * The anim_state should be left untouched, though * It is up to the author to animate them himself */ tsp->anim_production = INDUSTRYTILE_NOANIM; tsp->anim_next = INDUSTRYTILE_NOANIM; tsp->grf_prop.local_id = indtid + i; tsp->grf_prop.subst_id = subs_id; tsp->grf_prop.grffile = _cur.grffile; _industile_mngr.AddEntityID(indtid + i, _cur.grffile->grfid, subs_id); // pre-reserve the tile slot } break; } case 0x09: { // Industry tile override byte ovrid = buf->ReadByte(); /* The industry being overridden must be an original industry. */ if (ovrid >= NEW_INDUSTRYTILEOFFSET) { grfmsg(2, "IndustryTilesChangeInfo: Attempt to override new industry tile %u with industry tile id %u. Ignoring.", ovrid, indtid + i); continue; } _industile_mngr.Add(indtid + i, _cur.grffile->grfid, ovrid); break; } case 0x0A: // Tile acceptance case 0x0B: case 0x0C: { uint16 acctp = buf->ReadWord(); tsp->accepts_cargo[prop - 0x0A] = GetCargoTranslation(GB(acctp, 0, 8), _cur.grffile); tsp->acceptance[prop - 0x0A] = GB(acctp, 8, 8); break; } case 0x0D: // Land shape flags tsp->slopes_refused = (Slope)buf->ReadByte(); break; case 0x0E: // Callback mask tsp->callback_mask = buf->ReadByte(); break; case 0x0F: // Animation information tsp->animation.frames = buf->ReadByte(); tsp->animation.status = buf->ReadByte(); break; case 0x10: // Animation speed tsp->animation.speed = buf->ReadByte(); break; case 0x11: // Triggers for callback 25 tsp->animation.triggers = buf->ReadByte(); break; case 0x12: // Special flags tsp->special_flags = (IndustryTileSpecialFlags)buf->ReadByte(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Ignore an industry property * @param prop The property to ignore. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult IgnoreIndustryProperty(int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; switch (prop) { case 0x09: case 0x0B: case 0x0F: case 0x12: case 0x13: case 0x14: case 0x17: case 0x18: case 0x19: case 0x21: case 0x22: buf->ReadByte(); break; case 0x0C: case 0x0D: case 0x0E: case 0x10: case 0x1B: case 0x1F: case 0x24: buf->ReadWord(); break; case 0x11: case 0x1A: case 0x1C: case 0x1D: case 0x1E: case 0x20: case 0x23: buf->ReadDWord(); break; case 0x0A: { byte num_table = buf->ReadByte(); for (byte j = 0; j < num_table; j++) { for (uint k = 0;; k++) { byte x = buf->ReadByte(); if (x == 0xFE && k == 0) { buf->ReadByte(); buf->ReadByte(); break; } byte y = buf->ReadByte(); if (x == 0 && y == 0x80) break; byte gfx = buf->ReadByte(); if (gfx == 0xFE) buf->ReadWord(); } } break; } case 0x16: for (byte j = 0; j < 3; j++) buf->ReadByte(); break; case 0x15: { byte number_of_sounds = buf->ReadByte(); for (uint8 j = 0; j < number_of_sounds; j++) { buf->ReadByte(); } break; } default: ret = CIR_UNKNOWN; break; } return ret; } /** * Validate the industry layout; e.g. to prevent duplicate tiles. * @param layout The layout to check. * @param size The size of the layout. * @return True if the layout is deemed valid. */ static bool ValidateIndustryLayout(const IndustryTileTable *layout, int size) { for (int i = 0; i < size - 1; i++) { for (int j = i + 1; j < size; j++) { if (layout[i].ti.x == layout[j].ti.x && layout[i].ti.y == layout[j].ti.y) { return false; } } } return true; } /** Clean the tile table of the IndustrySpec if it's needed. */ static void CleanIndustryTileTable(IndustrySpec *ind) { if (HasBit(ind->cleanup_flag, CLEAN_TILELAYOUT) && ind->table != NULL) { for (int j = 0; j < ind->num_table; j++) { /* remove the individual layouts */ free(ind->table[j]); } /* remove the layouts pointers */ free(ind->table); ind->table = NULL; } } /** * Define properties for industries * @param indid Local ID of the industry. * @param numinfo Number of subsequent industry IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult IndustriesChangeInfo(uint indid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (indid + numinfo > NUM_INDUSTRYTYPES) { grfmsg(1, "IndustriesChangeInfo: Too many industries loaded (%u), max (%u). Ignoring.", indid + numinfo, NUM_INDUSTRYTYPES); return CIR_INVALID_ID; } grfmsg(1, "IndustriesChangeInfo: newid %u", indid); /* Allocate industry specs if they haven't been allocated already. */ if (_cur.grffile->industryspec == NULL) { _cur.grffile->industryspec = CallocT(NUM_INDUSTRYTYPES); } for (int i = 0; i < numinfo; i++) { IndustrySpec *indsp = _cur.grffile->industryspec[indid + i]; if (prop != 0x08 && indsp == NULL) { ChangeInfoResult cir = IgnoreIndustryProperty(prop, buf); if (cir > ret) ret = cir; continue; } switch (prop) { case 0x08: { // Substitute industry type IndustrySpec **indspec = &_cur.grffile->industryspec[indid + i]; byte subs_id = buf->ReadByte(); if (subs_id == 0xFF) { /* Instead of defining a new industry, a substitute industry id * of 0xFF disables the old industry with the current id. */ _industry_specs[indid + i].enabled = false; continue; } else if (subs_id >= NEW_INDUSTRYOFFSET) { /* The substitute id must be one of the original industry. */ grfmsg(2, "_industry_specs: Attempt to use new industry %u as substitute industry for %u. Ignoring.", subs_id, indid + i); continue; } /* Allocate space for this industry. * Only need to do it once. If ever it is called again, it should not * do anything */ if (*indspec == NULL) { *indspec = CallocT(1); indsp = *indspec; memcpy(indsp, &_origin_industry_specs[subs_id], sizeof(_industry_specs[subs_id])); indsp->enabled = true; indsp->grf_prop.local_id = indid + i; indsp->grf_prop.subst_id = subs_id; indsp->grf_prop.grffile = _cur.grffile; /* If the grf industry needs to check its surounding upon creation, it should * rely on callbacks, not on the original placement functions */ indsp->check_proc = CHECK_NOTHING; } break; } case 0x09: { // Industry type override byte ovrid = buf->ReadByte(); /* The industry being overridden must be an original industry. */ if (ovrid >= NEW_INDUSTRYOFFSET) { grfmsg(2, "IndustriesChangeInfo: Attempt to override new industry %u with industry id %u. Ignoring.", ovrid, indid + i); continue; } indsp->grf_prop.override = ovrid; _industry_mngr.Add(indid + i, _cur.grffile->grfid, ovrid); break; } case 0x0A: { // Set industry layout(s) byte new_num_layouts = buf->ReadByte(); // Number of layaouts /* We read the total size in bytes, but we can't rely on the * newgrf to provide a sane value. First assume the value is * sane but later on we make sure we enlarge the array if the * newgrf contains more data. Each tile uses either 3 or 5 * bytes, so to play it safe we assume 3. */ uint32 def_num_tiles = buf->ReadDWord() / 3 + 1; IndustryTileTable **tile_table = CallocT(new_num_layouts); // Table with tiles to compose an industry IndustryTileTable *itt = CallocT(def_num_tiles); // Temporary array to read the tile layouts from the GRF uint size; const IndustryTileTable *copy_from; try { for (byte j = 0; j < new_num_layouts; j++) { for (uint k = 0;; k++) { if (k >= def_num_tiles) { grfmsg(3, "IndustriesChangeInfo: Incorrect size for industry tile layout definition for industry %u.", indid); /* Size reported by newgrf was not big enough so enlarge the array. */ def_num_tiles *= 2; itt = ReallocT(itt, def_num_tiles); } itt[k].ti.x = buf->ReadByte(); // Offsets from northermost tile if (itt[k].ti.x == 0xFE && k == 0) { /* This means we have to borrow the layout from an old industry */ IndustryType type = buf->ReadByte(); // industry holding required layout byte laynbr = buf->ReadByte(); // layout number to borrow copy_from = _origin_industry_specs[type].table[laynbr]; for (size = 1;; size++) { if (copy_from[size - 1].ti.x == -0x80 && copy_from[size - 1].ti.y == 0) break; } break; } itt[k].ti.y = buf->ReadByte(); // Or table definition finalisation if (itt[k].ti.x == 0 && itt[k].ti.y == 0x80) { /* Not the same terminator. The one we are using is rather x = -80, y = x . So, adjust it. */ itt[k].ti.x = -0x80; itt[k].ti.y = 0; itt[k].gfx = 0; size = k + 1; copy_from = itt; break; } itt[k].gfx = buf->ReadByte(); if (itt[k].gfx == 0xFE) { /* Use a new tile from this GRF */ int local_tile_id = buf->ReadWord(); /* Read the ID from the _industile_mngr. */ int tempid = _industile_mngr.GetID(local_tile_id, _cur.grffile->grfid); if (tempid == INVALID_INDUSTRYTILE) { grfmsg(2, "IndustriesChangeInfo: Attempt to use industry tile %u with industry id %u, not yet defined. Ignoring.", local_tile_id, indid); } else { /* Declared as been valid, can be used */ itt[k].gfx = tempid; size = k + 1; copy_from = itt; } } else if (itt[k].gfx == 0xFF) { itt[k].ti.x = (int8)GB(itt[k].ti.x, 0, 8); itt[k].ti.y = (int8)GB(itt[k].ti.y, 0, 8); } } if (!ValidateIndustryLayout(copy_from, size)) { /* The industry layout was not valid, so skip this one. */ grfmsg(1, "IndustriesChangeInfo: Invalid industry layout for industry id %u. Ignoring", indid); new_num_layouts--; j--; } else { tile_table[j] = CallocT(size); memcpy(tile_table[j], copy_from, sizeof(*copy_from) * size); } } } catch (...) { for (int i = 0; i < new_num_layouts; i++) { free(tile_table[i]); } free(tile_table); free(itt); throw; } /* Clean the tile table if it was already set by a previous prop A. */ CleanIndustryTileTable(indsp); /* Install final layout construction in the industry spec */ indsp->num_table = new_num_layouts; indsp->table = tile_table; SetBit(indsp->cleanup_flag, CLEAN_TILELAYOUT); free(itt); break; } case 0x0B: // Industry production flags indsp->life_type = (IndustryLifeType)buf->ReadByte(); break; case 0x0C: // Industry closure message indsp->closure_text = buf->ReadWord(); _string_to_grf_mapping[&indsp->closure_text] = _cur.grffile->grfid; break; case 0x0D: // Production increase message indsp->production_up_text = buf->ReadWord(); _string_to_grf_mapping[&indsp->production_up_text] = _cur.grffile->grfid; break; case 0x0E: // Production decrease message indsp->production_down_text = buf->ReadWord(); _string_to_grf_mapping[&indsp->production_down_text] = _cur.grffile->grfid; break; case 0x0F: // Fund cost multiplier indsp->cost_multiplier = buf->ReadByte(); break; case 0x10: // Production cargo types for (byte j = 0; j < 2; j++) { indsp->produced_cargo[j] = GetCargoTranslation(buf->ReadByte(), _cur.grffile); } break; case 0x11: // Acceptance cargo types for (byte j = 0; j < 3; j++) { indsp->accepts_cargo[j] = GetCargoTranslation(buf->ReadByte(), _cur.grffile); } buf->ReadByte(); // Unnused, eat it up break; case 0x12: // Production multipliers case 0x13: indsp->production_rate[prop - 0x12] = buf->ReadByte(); break; case 0x14: // Minimal amount of cargo distributed indsp->minimal_cargo = buf->ReadByte(); break; case 0x15: { // Random sound effects indsp->number_of_sounds = buf->ReadByte(); uint8 *sounds = MallocT(indsp->number_of_sounds); try { for (uint8 j = 0; j < indsp->number_of_sounds; j++) { sounds[j] = buf->ReadByte(); } } catch (...) { free(sounds); throw; } if (HasBit(indsp->cleanup_flag, CLEAN_RANDOMSOUNDS)) { free(indsp->random_sounds); } indsp->random_sounds = sounds; SetBit(indsp->cleanup_flag, CLEAN_RANDOMSOUNDS); break; } case 0x16: // Conflicting industry types for (byte j = 0; j < 3; j++) indsp->conflicting[j] = buf->ReadByte(); break; case 0x17: // Probability in random game indsp->appear_creation[_settings_game.game_creation.landscape] = buf->ReadByte(); break; case 0x18: // Probability during gameplay indsp->appear_ingame[_settings_game.game_creation.landscape] = buf->ReadByte(); break; case 0x19: // Map colour indsp->map_colour = buf->ReadByte(); break; case 0x1A: // Special industry flags to define special behavior indsp->behaviour = (IndustryBehaviour)buf->ReadDWord(); break; case 0x1B: // New industry text ID indsp->new_industry_text = buf->ReadWord(); _string_to_grf_mapping[&indsp->new_industry_text] = _cur.grffile->grfid; break; case 0x1C: // Input cargo multipliers for the three input cargo types case 0x1D: case 0x1E: { uint32 multiples = buf->ReadDWord(); indsp->input_cargo_multiplier[prop - 0x1C][0] = GB(multiples, 0, 16); indsp->input_cargo_multiplier[prop - 0x1C][1] = GB(multiples, 16, 16); break; } case 0x1F: // Industry name indsp->name = buf->ReadWord(); _string_to_grf_mapping[&indsp->name] = _cur.grffile->grfid; break; case 0x20: // Prospecting success chance indsp->prospecting_chance = buf->ReadDWord(); break; case 0x21: // Callback mask case 0x22: { // Callback additional mask byte aflag = buf->ReadByte(); SB(indsp->callback_mask, (prop - 0x21) * 8, 8, aflag); break; } case 0x23: // removal cost multiplier indsp->removal_cost_multiplier = buf->ReadDWord(); break; case 0x24: // name for nearby station indsp->station_name = buf->ReadWord(); if (indsp->station_name != STR_NULL) _string_to_grf_mapping[&indsp->station_name] = _cur.grffile->grfid; break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Create a copy of the tile table so it can be freed later * without problems. * @param as The AirportSpec to copy the arrays of. */ static void DuplicateTileTable(AirportSpec *as) { AirportTileTable **table_list = MallocT(as->num_table); for (int i = 0; i < as->num_table; i++) { uint num_tiles = 1; const AirportTileTable *it = as->table[0]; do { num_tiles++; } while ((++it)->ti.x != -0x80); table_list[i] = MallocT(num_tiles); MemCpyT(table_list[i], as->table[i], num_tiles); } as->table = table_list; HangarTileTable *depot_table = MallocT(as->nof_depots); MemCpyT(depot_table, as->depot_table, as->nof_depots); as->depot_table = depot_table; } /** * Define properties for airports * @param airport Local ID of the airport. * @param numinfo Number of subsequent airport IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult AirportChangeInfo(uint airport, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (airport + numinfo > NUM_AIRPORTS) { grfmsg(1, "AirportChangeInfo: Too many airports, trying id (%u), max (%u). Ignoring.", airport + numinfo, NUM_AIRPORTS); return CIR_INVALID_ID; } grfmsg(1, "AirportChangeInfo: newid %u", airport); /* Allocate industry specs if they haven't been allocated already. */ if (_cur.grffile->airportspec == NULL) { _cur.grffile->airportspec = CallocT(NUM_AIRPORTS); } for (int i = 0; i < numinfo; i++) { AirportSpec *as = _cur.grffile->airportspec[airport + i]; if (as == NULL && prop != 0x08 && prop != 0x09) { grfmsg(2, "AirportChangeInfo: Attempt to modify undefined airport %u, ignoring", airport + i); return CIR_INVALID_ID; } switch (prop) { case 0x08: { // Modify original airport byte subs_id = buf->ReadByte(); if (subs_id == 0xFF) { /* Instead of defining a new airport, an airport id * of 0xFF disables the old airport with the current id. */ AirportSpec::GetWithoutOverride(airport + i)->enabled = false; continue; } else if (subs_id >= NEW_AIRPORT_OFFSET) { /* The substitute id must be one of the original airports. */ grfmsg(2, "AirportChangeInfo: Attempt to use new airport %u as substitute airport for %u. Ignoring.", subs_id, airport + i); continue; } AirportSpec **spec = &_cur.grffile->airportspec[airport + i]; /* Allocate space for this airport. * Only need to do it once. If ever it is called again, it should not * do anything */ if (*spec == NULL) { *spec = MallocT(1); as = *spec; memcpy(as, AirportSpec::GetWithoutOverride(subs_id), sizeof(*as)); as->enabled = true; as->grf_prop.local_id = airport + i; as->grf_prop.subst_id = subs_id; as->grf_prop.grffile = _cur.grffile; /* override the default airport */ _airport_mngr.Add(airport + i, _cur.grffile->grfid, subs_id); /* Create a copy of the original tiletable so it can be freed later. */ DuplicateTileTable(as); } break; } case 0x0A: { // Set airport layout as->num_table = buf->ReadByte(); // Number of layaouts as->rotation = MallocT(as->num_table); uint32 defsize = buf->ReadDWord(); // Total size of the definition AirportTileTable **tile_table = CallocT(as->num_table); // Table with tiles to compose the airport AirportTileTable *att = CallocT(defsize); // Temporary array to read the tile layouts from the GRF int size; const AirportTileTable *copy_from; try { for (byte j = 0; j < as->num_table; j++) { as->rotation[j] = (Direction)buf->ReadByte(); for (int k = 0;; k++) { att[k].ti.x = buf->ReadByte(); // Offsets from northermost tile att[k].ti.y = buf->ReadByte(); if (att[k].ti.x == 0 && att[k].ti.y == 0x80) { /* Not the same terminator. The one we are using is rather x= -80, y = 0 . So, adjust it. */ att[k].ti.x = -0x80; att[k].ti.y = 0; att[k].gfx = 0; size = k + 1; copy_from = att; break; } att[k].gfx = buf->ReadByte(); if (att[k].gfx == 0xFE) { /* Use a new tile from this GRF */ int local_tile_id = buf->ReadWord(); /* Read the ID from the _airporttile_mngr. */ uint16 tempid = _airporttile_mngr.GetID(local_tile_id, _cur.grffile->grfid); if (tempid == INVALID_AIRPORTTILE) { grfmsg(2, "AirportChangeInfo: Attempt to use airport tile %u with airport id %u, not yet defined. Ignoring.", local_tile_id, airport + i); } else { /* Declared as been valid, can be used */ att[k].gfx = tempid; size = k + 1; copy_from = att; } } else if (att[k].gfx == 0xFF) { att[k].ti.x = (int8)GB(att[k].ti.x, 0, 8); att[k].ti.y = (int8)GB(att[k].ti.y, 0, 8); } if (as->rotation[j] == DIR_E || as->rotation[j] == DIR_W) { as->size_x = max(as->size_x, att[k].ti.y + 1); as->size_y = max(as->size_y, att[k].ti.x + 1); } else { as->size_x = max(as->size_x, att[k].ti.x + 1); as->size_y = max(as->size_y, att[k].ti.y + 1); } } tile_table[j] = CallocT(size); memcpy(tile_table[j], copy_from, sizeof(*copy_from) * size); } /* Install final layout construction in the airport spec */ as->table = tile_table; free(att); } catch (...) { for (int i = 0; i < as->num_table; i++) { free(tile_table[i]); } free(tile_table); free(att); throw; } break; } case 0x0C: as->min_year = buf->ReadWord(); as->max_year = buf->ReadWord(); if (as->max_year == 0xFFFF) as->max_year = MAX_YEAR; break; case 0x0D: as->ttd_airport_type = (TTDPAirportType)buf->ReadByte(); break; case 0x0E: as->catchment = Clamp(buf->ReadByte(), 1, MAX_CATCHMENT); break; case 0x0F: as->noise_level = buf->ReadByte(); break; case 0x10: as->name = buf->ReadWord(); _string_to_grf_mapping[&as->name] = _cur.grffile->grfid; break; case 0x11: // Maintenance cost factor as->maintenance_cost = buf->ReadWord(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Ignore properties for objects * @param prop The property to ignore. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult IgnoreObjectProperty(uint prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; switch (prop) { case 0x0B: case 0x0C: case 0x0D: case 0x12: case 0x14: case 0x16: case 0x17: buf->ReadByte(); case 0x09: case 0x0A: case 0x10: case 0x11: case 0x13: case 0x15: buf->ReadWord(); break; case 0x08: case 0x0E: case 0x0F: buf->ReadDWord(); break; default: ret = CIR_UNKNOWN; break; } return ret; } /** * Define properties for objects * @param id Local ID of the object. * @param numinfo Number of subsequent objectIDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult ObjectChangeInfo(uint id, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (id + numinfo > NUM_OBJECTS) { grfmsg(1, "ObjectChangeInfo: Too many objects loaded (%u), max (%u). Ignoring.", id + numinfo, NUM_OBJECTS); return CIR_INVALID_ID; } /* Allocate object specs if they haven't been allocated already. */ if (_cur.grffile->objectspec == NULL) { _cur.grffile->objectspec = CallocT(NUM_OBJECTS); } for (int i = 0; i < numinfo; i++) { ObjectSpec *spec = _cur.grffile->objectspec[id + i]; if (prop != 0x08 && spec == NULL) { /* If the object property 08 is not yet set, ignore this property */ ChangeInfoResult cir = IgnoreObjectProperty(prop, buf); if (cir > ret) ret = cir; continue; } switch (prop) { case 0x08: { // Class ID ObjectSpec **ospec = &_cur.grffile->objectspec[id + i]; /* Allocate space for this object. */ if (*ospec == NULL) { *ospec = CallocT(1); (*ospec)->views = 1; // Default for NewGRFs that don't set it. } /* Swap classid because we read it in BE. */ uint32 classid = buf->ReadDWord(); (*ospec)->cls_id = ObjectClass::Allocate(BSWAP32(classid)); (*ospec)->enabled = true; break; } case 0x09: { // Class name StringID class_name = buf->ReadWord(); ObjectClass::SetName(spec->cls_id, class_name); _string_to_grf_mapping[&ObjectClass::classes[spec->cls_id].name] = _cur.grffile->grfid; break; } case 0x0A: // Object name spec->name = buf->ReadWord(); _string_to_grf_mapping[&spec->name] = _cur.grffile->grfid; break; case 0x0B: // Climate mask spec->climate = buf->ReadByte(); break; case 0x0C: // Size spec->size = buf->ReadByte(); break; case 0x0D: // Build cost multipler spec->build_cost_multiplier = buf->ReadByte(); spec->clear_cost_multiplier = spec->build_cost_multiplier; break; case 0x0E: // Introduction date spec->introduction_date = buf->ReadDWord(); break; case 0x0F: // End of life spec->end_of_life_date = buf->ReadDWord(); break; case 0x10: // Flags spec->flags = (ObjectFlags)buf->ReadWord(); _loaded_newgrf_features.has_2CC |= (spec->flags & OBJECT_FLAG_2CC_COLOUR) != 0; break; case 0x11: // Animation info spec->animation.frames = buf->ReadByte(); spec->animation.status = buf->ReadByte(); break; case 0x12: // Animation speed spec->animation.speed = buf->ReadByte(); break; case 0x13: // Animation triggers spec->animation.triggers = buf->ReadWord(); break; case 0x14: // Removal cost multiplier spec->clear_cost_multiplier = buf->ReadByte(); break; case 0x15: // Callback mask spec->callback_mask = buf->ReadWord(); break; case 0x16: // Building height spec->height = buf->ReadByte(); break; case 0x17: // Views spec->views = buf->ReadByte(); if (spec->views != 1 && spec->views != 2 && spec->views != 4) { grfmsg(2, "ObjectChangeInfo: Invalid number of views (%u) for object id %u. Ignoring.", spec->views, id + i); spec->views = 1; } break; default: ret = CIR_UNKNOWN; break; } } return ret; } /** * Define properties for railtypes * @param id ID of the railtype. * @param numinfo Number of subsequent IDs to change the property for. * @param prop The property to change. * @param buf The property value. * @return ChangeInfoResult. */ static ChangeInfoResult RailTypeChangeInfo(uint id, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; extern RailtypeInfo _railtypes[RAILTYPE_END]; if (id + numinfo > RAILTYPE_END) { grfmsg(1, "RailTypeChangeInfo: Rail type %u is invalid, max %u, ignoring", id + numinfo, RAILTYPE_END); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { RailType rt = _cur.grffile->railtype_map[id + i]; if (rt == INVALID_RAILTYPE) return CIR_INVALID_ID; RailtypeInfo *rti = &_railtypes[rt]; switch (prop) { case 0x08: // Label of rail type /* Skipped here as this is loaded during reservation stage. */ buf->ReadDWord(); break; case 0x09: // Toolbar caption of railtype (sets name as well for backwards compatibility for grf ver < 8) rti->strings.toolbar_caption = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.toolbar_caption] = _cur.grffile->grfid; if (_cur.grffile->grf_version < 8) { rti->strings.name = rti->strings.toolbar_caption; _string_to_grf_mapping[&rti->strings.name] = _cur.grffile->grfid; } break; case 0x0A: // Menu text of railtype rti->strings.menu_text = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.menu_text] = _cur.grffile->grfid; break; case 0x0B: // Build window caption rti->strings.build_caption = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.build_caption] = _cur.grffile->grfid; break; case 0x0C: // Autoreplace text rti->strings.replace_text = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.replace_text] = _cur.grffile->grfid; break; case 0x0D: // New locomotive text rti->strings.new_loco = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.new_loco] = _cur.grffile->grfid; break; case 0x0E: // Compatible railtype list case 0x0F: // Powered railtype list case 0x18: // Railtype list required for date introduction case 0x19: // Introduced railtype list { /* Rail type compatibility bits are added to the existing bits * to allow multiple GRFs to modify compatibility with the * default rail types. */ int n = buf->ReadByte(); for (int j = 0; j != n; j++) { RailTypeLabel label = buf->ReadDWord(); RailType rt = GetRailTypeByLabel(BSWAP32(label), false); if (rt != INVALID_RAILTYPE) { switch (prop) { case 0x0E: SetBit(rti->compatible_railtypes, rt); break; case 0x0F: SetBit(rti->powered_railtypes, rt); break; case 0x18: SetBit(rti->introduction_required_railtypes, rt); break; case 0x19: SetBit(rti->introduces_railtypes, rt); break; } } } break; } case 0x10: // Rail Type flags rti->flags = (RailTypeFlags)buf->ReadByte(); break; case 0x11: // Curve speed advantage rti->curve_speed = buf->ReadByte(); break; case 0x12: // Station graphic rti->fallback_railtype = Clamp(buf->ReadByte(), 0, 2); break; case 0x13: // Construction cost factor rti->cost_multiplier = buf->ReadWord(); break; case 0x14: // Speed limit rti->max_speed = buf->ReadWord(); break; case 0x15: // Acceleration model rti->acceleration_type = Clamp(buf->ReadByte(), 0, 2); break; case 0x16: // Map colour rti->map_colour = buf->ReadByte(); break; case 0x17: // Introduction date rti->introduction_date = buf->ReadDWord(); break; case 0x1A: // Sort order rti->sorting_order = buf->ReadByte(); break; case 0x1B: // Name of railtype (overridden by prop 09 for grf ver < 8) rti->strings.name = buf->ReadWord(); _string_to_grf_mapping[&rti->strings.name] = _cur.grffile->grfid; break; case 0x1C: // Maintenance cost factor rti->maintenance_multiplier = buf->ReadWord(); break; case 0x1D: // Alternate rail type label list /* Skipped here as this is loaded during reservation stage. */ for (int j = buf->ReadByte(); j != 0; j--) buf->ReadDWord(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } static ChangeInfoResult RailTypeReserveInfo(uint id, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; extern RailtypeInfo _railtypes[RAILTYPE_END]; if (id + numinfo > RAILTYPE_END) { grfmsg(1, "RailTypeReserveInfo: Rail type %u is invalid, max %u, ignoring", id + numinfo, RAILTYPE_END); return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { switch (prop) { case 0x08: // Label of rail type { RailTypeLabel rtl = buf->ReadDWord(); rtl = BSWAP32(rtl); RailType rt = GetRailTypeByLabel(rtl, false); if (rt == INVALID_RAILTYPE) { /* Set up new rail type */ rt = AllocateRailType(rtl); } _cur.grffile->railtype_map[id + i] = rt; break; } case 0x09: // Toolbar caption of railtype case 0x0A: // Menu text case 0x0B: // Build window caption case 0x0C: // Autoreplace text case 0x0D: // New loco case 0x13: // Construction cost case 0x14: // Speed limit case 0x1B: // Name of railtype case 0x1C: // Maintenance cost factor buf->ReadWord(); break; case 0x1D: // Alternate rail type label list if (_cur.grffile->railtype_map[id + i] != INVALID_RAILTYPE) { int n = buf->ReadByte(); for (int j = 0; j != n; j++) { *_railtypes[_cur.grffile->railtype_map[id + i]].alternate_labels.Append() = BSWAP32(buf->ReadDWord()); } break; } grfmsg(1, "RailTypeReserveInfo: Ignoring property 1D for rail type %u because no label was set", id + i); /* FALL THROUGH */ case 0x0E: // Compatible railtype list case 0x0F: // Powered railtype list case 0x18: // Railtype list required for date introduction case 0x19: // Introduced railtype list for (int j = buf->ReadByte(); j != 0; j--) buf->ReadDWord(); break; case 0x10: // Rail Type flags case 0x11: // Curve speed advantage case 0x12: // Station graphic case 0x15: // Acceleration model case 0x16: // Map colour case 0x1A: // Sort order buf->ReadByte(); break; case 0x17: // Introduction date buf->ReadDWord(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } static ChangeInfoResult AirportTilesChangeInfo(uint airtid, int numinfo, int prop, ByteReader *buf) { ChangeInfoResult ret = CIR_SUCCESS; if (airtid + numinfo > NUM_AIRPORTTILES) { grfmsg(1, "AirportTileChangeInfo: Too many airport tiles loaded (%u), max (%u). Ignoring.", airtid + numinfo, NUM_AIRPORTTILES); return CIR_INVALID_ID; } /* Allocate airport tile specs if they haven't been allocated already. */ if (_cur.grffile->airtspec == NULL) { _cur.grffile->airtspec = CallocT(NUM_AIRPORTTILES); } for (int i = 0; i < numinfo; i++) { AirportTileSpec *tsp = _cur.grffile->airtspec[airtid + i]; if (prop != 0x08 && tsp == NULL) { grfmsg(2, "AirportTileChangeInfo: Attempt to modify undefined airport tile %u. Ignoring.", airtid + i); return CIR_INVALID_ID; } switch (prop) { case 0x08: { // Substitute airport tile type AirportTileSpec **tilespec = &_cur.grffile->airtspec[airtid + i]; byte subs_id = buf->ReadByte(); if (subs_id >= NEW_AIRPORTTILE_OFFSET) { /* The substitute id must be one of the original airport tiles. */ grfmsg(2, "AirportTileChangeInfo: Attempt to use new airport tile %u as substitute airport tile for %u. Ignoring.", subs_id, airtid + i); continue; } /* Allocate space for this airport tile. */ if (*tilespec == NULL) { *tilespec = CallocT(1); tsp = *tilespec; memcpy(tsp, AirportTileSpec::Get(subs_id), sizeof(AirportTileSpec)); tsp->enabled = true; tsp->animation.status = ANIM_STATUS_NO_ANIMATION; tsp->grf_prop.local_id = airtid + i; tsp->grf_prop.subst_id = subs_id; tsp->grf_prop.grffile = _cur.grffile; _airporttile_mngr.AddEntityID(airtid + i, _cur.grffile->grfid, subs_id); // pre-reserve the tile slot } break; } case 0x09: { // Airport tile override byte override = buf->ReadByte(); /* The airport tile being overridden must be an original airport tile. */ if (override >= NEW_AIRPORTTILE_OFFSET) { grfmsg(2, "AirportTileChangeInfo: Attempt to override new airport tile %u with airport tile id %u. Ignoring.", override, airtid + i); continue; } _airporttile_mngr.Add(airtid + i, _cur.grffile->grfid, override); break; } case 0x0E: // Callback mask tsp->callback_mask = buf->ReadByte(); break; case 0x0F: // Animation information tsp->animation.frames = buf->ReadByte(); tsp->animation.status = buf->ReadByte(); break; case 0x10: // Animation speed tsp->animation.speed = buf->ReadByte(); break; case 0x11: // Animation triggers tsp->animation.triggers = buf->ReadByte(); break; default: ret = CIR_UNKNOWN; break; } } return ret; } static bool HandleChangeInfoResult(const char *caller, ChangeInfoResult cir, uint8 feature, uint8 property) { switch (cir) { default: NOT_REACHED(); case CIR_DISABLED: /* Error has already been printed; just stop parsing */ return true; case CIR_SUCCESS: return false; case CIR_UNHANDLED: grfmsg(1, "%s: Ignoring property 0x%02X of feature 0x%02X (not implemented)", caller, property, feature); return false; case CIR_UNKNOWN: grfmsg(0, "%s: Unknown property 0x%02X of feature 0x%02X, disabling", caller, property, feature); /* FALL THROUGH */ case CIR_INVALID_ID: /* No debug message for an invalid ID, as it has already been output */ DisableGrf(cir == CIR_INVALID_ID ? STR_NEWGRF_ERROR_INVALID_ID : STR_NEWGRF_ERROR_UNKNOWN_PROPERTY); return true; } } /* Action 0x00 */ static void FeatureChangeInfo(ByteReader *buf) { /* <00> ()... * * B feature * B num-props how many properties to change per vehicle/station * B num-info how many vehicles/stations to change * E id ID of first vehicle/station to change, if num-info is * greater than one, this one and the following * vehicles/stations will be changed * B property what property to change, depends on the feature * V new-info new bytes of info (variable size; depends on properties) */ static const VCI_Handler handler[] = { /* GSF_TRAINS */ RailVehicleChangeInfo, /* GSF_ROADVEHICLES */ RoadVehicleChangeInfo, /* GSF_SHIPS */ ShipVehicleChangeInfo, /* GSF_AIRCRAFT */ AircraftVehicleChangeInfo, /* GSF_STATIONS */ StationChangeInfo, /* GSF_CANALS */ CanalChangeInfo, /* GSF_BRIDGES */ BridgeChangeInfo, /* GSF_HOUSES */ TownHouseChangeInfo, /* GSF_GLOBALVAR */ GlobalVarChangeInfo, /* GSF_INDUSTRYTILES */ IndustrytilesChangeInfo, /* GSF_INDUSTRIES */ IndustriesChangeInfo, /* GSF_CARGOES */ NULL, // Cargo is handled during reservation /* GSF_SOUNDFX */ SoundEffectChangeInfo, /* GSF_AIRPORTS */ AirportChangeInfo, /* GSF_SIGNALS */ NULL, /* GSF_OBJECTS */ ObjectChangeInfo, /* GSF_RAILTYPES */ RailTypeChangeInfo, /* GSF_AIRPORTTILES */ AirportTilesChangeInfo, }; uint8 feature = buf->ReadByte(); uint8 numprops = buf->ReadByte(); uint numinfo = buf->ReadByte(); uint engine = buf->ReadExtendedByte(); grfmsg(6, "FeatureChangeInfo: feature %d, %d properties, to apply to %d+%d", feature, numprops, engine, numinfo); if (feature >= lengthof(handler) || handler[feature] == NULL) { if (feature != GSF_CARGOES) grfmsg(1, "FeatureChangeInfo: Unsupported feature %d, skipping", feature); return; } /* Mark the feature as used by the grf */ SetBit(_cur.grffile->grf_features, feature); while (numprops-- && buf->HasData()) { uint8 prop = buf->ReadByte(); ChangeInfoResult cir = handler[feature](engine, numinfo, prop, buf); if (HandleChangeInfoResult("FeatureChangeInfo", cir, feature, prop)) return; } } /* Action 0x00 (GLS_SAFETYSCAN) */ static void SafeChangeInfo(ByteReader *buf) { uint8 feature = buf->ReadByte(); uint8 numprops = buf->ReadByte(); uint numinfo = buf->ReadByte(); buf->ReadExtendedByte(); // id if (feature == GSF_BRIDGES && numprops == 1) { uint8 prop = buf->ReadByte(); /* Bridge property 0x0D is redefinition of sprite layout tables, which * is considered safe. */ if (prop == 0x0D) return; } else if (feature == GSF_GLOBALVAR && numprops == 1) { uint8 prop = buf->ReadByte(); /* Engine ID Mappings are safe, if the source is static */ if (prop == 0x11) { bool is_safe = true; for (uint i = 0; i < numinfo; i++) { uint32 s = buf->ReadDWord(); buf->ReadDWord(); // dest const GRFConfig *grfconfig = GetGRFConfig(s); if (grfconfig != NULL && !HasBit(grfconfig->flags, GCF_STATIC)) { is_safe = false; break; } } if (is_safe) return; } } SetBit(_cur.grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _cur.skip_sprites = -1; } /* Action 0x00 (GLS_RESERVE) */ static void ReserveChangeInfo(ByteReader *buf) { uint8 feature = buf->ReadByte(); if (feature != GSF_CARGOES && feature != GSF_GLOBALVAR && feature != GSF_RAILTYPES) return; uint8 numprops = buf->ReadByte(); uint8 numinfo = buf->ReadByte(); uint8 index = buf->ReadExtendedByte(); while (numprops-- && buf->HasData()) { uint8 prop = buf->ReadByte(); ChangeInfoResult cir = CIR_SUCCESS; switch (feature) { default: NOT_REACHED(); case GSF_CARGOES: cir = CargoChangeInfo(index, numinfo, prop, buf); break; case GSF_GLOBALVAR: cir = GlobalVarReserveInfo(index, numinfo, prop, buf); break; case GSF_RAILTYPES: cir = RailTypeReserveInfo(index, numinfo, prop, buf); break; } if (HandleChangeInfoResult("ReserveChangeInfo", cir, feature, prop)) return; } } /* Action 0x01 */ static void NewSpriteSet(ByteReader *buf) { /* <01> * * B feature feature to define sprites for * 0, 1, 2, 3: veh-type, 4: train stations * B num-sets number of sprite sets * E num-ent how many entries per sprite set * For vehicles, this is the number of different * vehicle directions in each sprite set * Set num-dirs=8, unless your sprites are symmetric. * In that case, use num-dirs=4. */ uint8 feature = buf->ReadByte(); uint8 num_sets = buf->ReadByte(); uint16 first_set = 0; if (num_sets == 0 && buf->HasData(2)) { /* Extended Action1 format. * Some GRFs define zero sets of zero sprites, though there is actually no use in that. Ignore them. */ first_set = buf->ReadExtendedByte(); num_sets = buf->ReadExtendedByte(); } uint16 num_ents = buf->ReadExtendedByte(); _cur.AddSpriteSets(feature, _cur.spriteid, first_set, num_sets, num_ents); grfmsg(7, "New sprite set at %d of type %d, consisting of %d sets with %d views each (total %d)", _cur.spriteid, feature, num_sets, num_ents, num_sets * num_ents ); for (int i = 0; i < num_sets * num_ents; i++) { _cur.nfo_line++; LoadNextSprite(_cur.spriteid++, _cur.file_index, _cur.nfo_line); } } /* Action 0x01 (SKIP) */ static void SkipAct1(ByteReader *buf) { buf->ReadByte(); uint8 num_sets = buf->ReadByte(); uint16 num_ents = buf->ReadExtendedByte(); _cur.skip_sprites = num_sets * num_ents; grfmsg(3, "SkipAct1: Skipping %d sprites", _cur.skip_sprites); } /* Helper function to either create a callback or link to a previously * defined spritegroup. */ static const SpriteGroup *GetGroupFromGroupID(byte setid, byte type, uint16 groupid) { if (HasBit(groupid, 15)) { assert(CallbackResultSpriteGroup::CanAllocateItem()); return new CallbackResultSpriteGroup(groupid, _cur.grffile->grf_version >= 8); } if (groupid > MAX_SPRITEGROUP || _cur.spritegroups[groupid] == NULL) { grfmsg(1, "GetGroupFromGroupID(0x%02X:0x%02X): Groupid 0x%04X does not exist, leaving empty", setid, type, groupid); return NULL; } return _cur.spritegroups[groupid]; } /** * Helper function to either create a callback or a result sprite group. * @param feature GrfSpecFeature to define spritegroup for. * @param setid SetID of the currently being parsed Action2. (only for debug output) * @param type Type of the currently being parsed Action2. (only for debug output) * @param spriteid Raw value from the GRF for the new spritegroup; describes either the return value or the referenced spritegroup. * @return Created spritegroup. */ static const SpriteGroup *CreateGroupFromGroupID(byte feature, byte setid, byte type, uint16 spriteid) { if (HasBit(spriteid, 15)) { assert(CallbackResultSpriteGroup::CanAllocateItem()); return new CallbackResultSpriteGroup(spriteid, _cur.grffile->grf_version >= 8); } if (!_cur.IsValidSpriteSet(feature, spriteid)) { grfmsg(1, "CreateGroupFromGroupID(0x%02X:0x%02X): Sprite set %u invalid", setid, type, spriteid); return NULL; } SpriteID spriteset_start = _cur.GetSprite(feature, spriteid); uint num_sprites = _cur.GetNumEnts(feature, spriteid); /* Ensure that the sprites are loeded */ assert(spriteset_start + num_sprites <= _cur.spriteid); assert(ResultSpriteGroup::CanAllocateItem()); return new ResultSpriteGroup(spriteset_start, num_sprites); } /* Action 0x02 */ static void NewSpriteGroup(ByteReader *buf) { /* <02> * * B feature see action 1 * B set-id ID of this particular definition * B type/num-entries * if 80 or greater, this is a randomized or variational * list definition, see below * otherwise it specifies a number of entries, the exact * meaning depends on the feature * V feature-specific-data (huge mess, don't even look it up --pasky) */ SpriteGroup *act_group = NULL; uint8 feature = buf->ReadByte(); uint8 setid = buf->ReadByte(); uint8 type = buf->ReadByte(); /* Sprite Groups are created here but they are allocated from a pool, so * we do not need to delete anything if there is an exception from the * ByteReader. */ switch (type) { /* Deterministic Sprite Group */ case 0x81: // Self scope, byte case 0x82: // Parent scope, byte case 0x85: // Self scope, word case 0x86: // Parent scope, word case 0x89: // Self scope, dword case 0x8A: // Parent scope, dword { byte varadjust; byte varsize; assert(DeterministicSpriteGroup::CanAllocateItem()); DeterministicSpriteGroup *group = new DeterministicSpriteGroup(); act_group = group; group->var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF; switch (GB(type, 2, 2)) { default: NOT_REACHED(); case 0: group->size = DSG_SIZE_BYTE; varsize = 1; break; case 1: group->size = DSG_SIZE_WORD; varsize = 2; break; case 2: group->size = DSG_SIZE_DWORD; varsize = 4; break; } static SmallVector adjusts; adjusts.Clear(); /* Loop through the var adjusts. Unfortunately we don't know how many we have * from the outset, so we shall have to keep reallocing. */ do { DeterministicSpriteGroupAdjust *adjust = adjusts.Append(); /* The first var adjust doesn't have an operation specified, so we set it to add. */ adjust->operation = adjusts.Length() == 1 ? DSGA_OP_ADD : (DeterministicSpriteGroupAdjustOperation)buf->ReadByte(); adjust->variable = buf->ReadByte(); if (adjust->variable == 0x7E) { /* Link subroutine group */ adjust->subroutine = GetGroupFromGroupID(setid, type, buf->ReadByte()); } else { adjust->parameter = IsInsideMM(adjust->variable, 0x60, 0x80) ? buf->ReadByte() : 0; } varadjust = buf->ReadByte(); adjust->shift_num = GB(varadjust, 0, 5); adjust->type = (DeterministicSpriteGroupAdjustType)GB(varadjust, 6, 2); adjust->and_mask = buf->ReadVarSize(varsize); if (adjust->type != DSGA_TYPE_NONE) { adjust->add_val = buf->ReadVarSize(varsize); adjust->divmod_val = buf->ReadVarSize(varsize); } else { adjust->add_val = 0; adjust->divmod_val = 0; } /* Continue reading var adjusts while bit 5 is set. */ } while (HasBit(varadjust, 5)); group->num_adjusts = adjusts.Length(); group->adjusts = MallocT(group->num_adjusts); MemCpyT(group->adjusts, adjusts.Begin(), group->num_adjusts); group->num_ranges = buf->ReadByte(); if (group->num_ranges > 0) group->ranges = CallocT(group->num_ranges); for (uint i = 0; i < group->num_ranges; i++) { group->ranges[i].group = GetGroupFromGroupID(setid, type, buf->ReadWord()); group->ranges[i].low = buf->ReadVarSize(varsize); group->ranges[i].high = buf->ReadVarSize(varsize); } group->default_group = GetGroupFromGroupID(setid, type, buf->ReadWord()); break; } /* Randomized Sprite Group */ case 0x80: // Self scope case 0x83: // Parent scope case 0x84: // Relative scope { assert(RandomizedSpriteGroup::CanAllocateItem()); RandomizedSpriteGroup *group = new RandomizedSpriteGroup(); act_group = group; group->var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF; if (HasBit(type, 2)) { if (feature <= GSF_AIRCRAFT) group->var_scope = VSG_SCOPE_RELATIVE; group->count = buf->ReadByte(); } uint8 triggers = buf->ReadByte(); group->triggers = GB(triggers, 0, 7); group->cmp_mode = HasBit(triggers, 7) ? RSG_CMP_ALL : RSG_CMP_ANY; group->lowest_randbit = buf->ReadByte(); group->num_groups = buf->ReadByte(); group->groups = CallocT(group->num_groups); for (uint i = 0; i < group->num_groups; i++) { group->groups[i] = GetGroupFromGroupID(setid, type, buf->ReadWord()); } break; } /* Neither a variable or randomized sprite group... must be a real group */ default: { switch (feature) { case GSF_TRAINS: case GSF_ROADVEHICLES: case GSF_SHIPS: case GSF_AIRCRAFT: case GSF_STATIONS: case GSF_CANALS: case GSF_CARGOES: case GSF_AIRPORTS: case GSF_RAILTYPES: { byte num_loaded = type; byte num_loading = buf->ReadByte(); if (!_cur.HasValidSpriteSets(feature)) { grfmsg(0, "NewSpriteGroup: No sprite set to work on! Skipping"); return; } assert(RealSpriteGroup::CanAllocateItem()); RealSpriteGroup *group = new RealSpriteGroup(); act_group = group; group->num_loaded = num_loaded; group->num_loading = num_loading; if (num_loaded > 0) group->loaded = CallocT(num_loaded); if (num_loading > 0) group->loading = CallocT(num_loading); grfmsg(6, "NewSpriteGroup: New SpriteGroup 0x%02X, %u loaded, %u loading", setid, num_loaded, num_loading); for (uint i = 0; i < num_loaded; i++) { uint16 spriteid = buf->ReadWord(); group->loaded[i] = CreateGroupFromGroupID(feature, setid, type, spriteid); grfmsg(8, "NewSpriteGroup: + rg->loaded[%i] = subset %u", i, spriteid); } for (uint i = 0; i < num_loading; i++) { uint16 spriteid = buf->ReadWord(); group->loading[i] = CreateGroupFromGroupID(feature, setid, type, spriteid); grfmsg(8, "NewSpriteGroup: + rg->loading[%i] = subset %u", i, spriteid); } break; } case GSF_HOUSES: case GSF_AIRPORTTILES: case GSF_OBJECTS: case GSF_INDUSTRYTILES: { byte num_building_sprites = max((uint8)1, type); assert(TileLayoutSpriteGroup::CanAllocateItem()); TileLayoutSpriteGroup *group = new TileLayoutSpriteGroup(); act_group = group; /* On error, bail out immediately. Temporary GRF data was already freed */ if (ReadSpriteLayout(buf, num_building_sprites, true, feature, false, type == 0, &group->dts)) return; break; } case GSF_INDUSTRIES: { if (type > 1) { grfmsg(1, "NewSpriteGroup: Unsupported industry production version %d, skipping", type); break; } assert(IndustryProductionSpriteGroup::CanAllocateItem()); IndustryProductionSpriteGroup *group = new IndustryProductionSpriteGroup(); act_group = group; group->version = type; if (type == 0) { for (uint i = 0; i < 3; i++) { group->subtract_input[i] = (int16)buf->ReadWord(); // signed } for (uint i = 0; i < 2; i++) { group->add_output[i] = buf->ReadWord(); // unsigned } group->again = buf->ReadByte(); } else { for (uint i = 0; i < 3; i++) { group->subtract_input[i] = buf->ReadByte(); } for (uint i = 0; i < 2; i++) { group->add_output[i] = buf->ReadByte(); } group->again = buf->ReadByte(); } break; } /* Loading of Tile Layout and Production Callback groups would happen here */ default: grfmsg(1, "NewSpriteGroup: Unsupported feature %d, skipping", feature); } } } _cur.spritegroups[setid] = act_group; } static CargoID TranslateCargo(uint8 feature, uint8 ctype) { if (feature == GSF_OBJECTS) { switch (ctype) { case 0: return 0; case 0xFF: return CT_PURCHASE_OBJECT; default: grfmsg(1, "TranslateCargo: Invalid cargo bitnum %d for objects, skipping.", ctype); return CT_INVALID; } } /* Special cargo types for purchase list and stations */ if (feature == GSF_STATIONS && ctype == 0xFE) return CT_DEFAULT_NA; if (ctype == 0xFF) return CT_PURCHASE; if (_cur.grffile->cargo_max == 0) { /* No cargo table, so use bitnum values */ if (ctype >= 32) { grfmsg(1, "TranslateCargo: Cargo bitnum %d out of range (max 31), skipping.", ctype); return CT_INVALID; } const CargoSpec *cs; FOR_ALL_CARGOSPECS(cs) { if (cs->bitnum == ctype) { grfmsg(6, "TranslateCargo: Cargo bitnum %d mapped to cargo type %d.", ctype, cs->Index()); return cs->Index(); } } grfmsg(5, "TranslateCargo: Cargo bitnum %d not available in this climate, skipping.", ctype); return CT_INVALID; } /* Check if the cargo type is out of bounds of the cargo translation table */ if (ctype >= _cur.grffile->cargo_max) { grfmsg(1, "TranslateCargo: Cargo type %d out of range (max %d), skipping.", ctype, _cur.grffile->cargo_max - 1); return CT_INVALID; } /* Look up the cargo label from the translation table */ CargoLabel cl = _cur.grffile->cargo_list[ctype]; if (cl == 0) { grfmsg(5, "TranslateCargo: Cargo type %d not available in this climate, skipping.", ctype); return CT_INVALID; } ctype = GetCargoIDByLabel(cl); if (ctype == CT_INVALID) { grfmsg(5, "TranslateCargo: Cargo '%c%c%c%c' unsupported, skipping.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8)); return CT_INVALID; } grfmsg(6, "TranslateCargo: Cargo '%c%c%c%c' mapped to cargo type %d.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8), ctype); return ctype; } static bool IsValidGroupID(uint16 groupid, const char *function) { if (groupid > MAX_SPRITEGROUP || _cur.spritegroups[groupid] == NULL) { grfmsg(1, "%s: Spritegroup 0x%04X out of range or empty, skipping.", function, groupid); return false; } return true; } static void VehicleMapSpriteGroup(ByteReader *buf, byte feature, uint8 idcount) { static EngineID *last_engines; static uint last_engines_count; bool wagover = false; /* Test for 'wagon override' flag */ if (HasBit(idcount, 7)) { wagover = true; /* Strip off the flag */ idcount = GB(idcount, 0, 7); if (last_engines_count == 0) { grfmsg(0, "VehicleMapSpriteGroup: WagonOverride: No engine to do override with"); return; } grfmsg(6, "VehicleMapSpriteGroup: WagonOverride: %u engines, %u wagons", last_engines_count, idcount); } else { if (last_engines_count != idcount) { last_engines = ReallocT(last_engines, idcount); last_engines_count = idcount; } } EngineID *engines = AllocaM(EngineID, idcount); for (uint i = 0; i < idcount; i++) { Engine *e = GetNewEngine(_cur.grffile, (VehicleType)feature, buf->ReadExtendedByte()); if (e == NULL) { /* No engine could be allocated?!? Deal with it. Okay, * this might look bad. Also make sure this NewGRF * gets disabled, as a half loaded one is bad. */ HandleChangeInfoResult("VehicleMapSpriteGroup", CIR_INVALID_ID, 0, 0); return; } engines[i] = e->index; if (!wagover) last_engines[i] = engines[i]; } uint8 cidcount = buf->ReadByte(); for (uint c = 0; c < cidcount; c++) { uint8 ctype = buf->ReadByte(); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) continue; grfmsg(8, "VehicleMapSpriteGroup: * [%d] Cargo type 0x%X, group id 0x%02X", c, ctype, groupid); ctype = TranslateCargo(feature, ctype); if (ctype == CT_INVALID) continue; for (uint i = 0; i < idcount; i++) { EngineID engine = engines[i]; grfmsg(7, "VehicleMapSpriteGroup: [%d] Engine %d...", i, engine); if (wagover) { SetWagonOverrideSprites(engine, ctype, _cur.spritegroups[groupid], last_engines, last_engines_count); } else { SetCustomEngineSprites(engine, ctype, _cur.spritegroups[groupid]); } } } uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) return; grfmsg(8, "-- Default group id 0x%04X", groupid); for (uint i = 0; i < idcount; i++) { EngineID engine = engines[i]; if (wagover) { SetWagonOverrideSprites(engine, CT_DEFAULT, _cur.spritegroups[groupid], last_engines, last_engines_count); } else { SetCustomEngineSprites(engine, CT_DEFAULT, _cur.spritegroups[groupid]); SetEngineGRF(engine, _cur.grffile); } } } static void CanalMapSpriteGroup(ByteReader *buf, uint8 idcount) { CanalFeature *cfs = AllocaM(CanalFeature, idcount); for (uint i = 0; i < idcount; i++) { cfs[i] = (CanalFeature)buf->ReadByte(); } uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "CanalMapSpriteGroup")) return; for (uint i = 0; i < idcount; i++) { CanalFeature cf = cfs[i]; if (cf >= CF_END) { grfmsg(1, "CanalMapSpriteGroup: Canal subset %d out of range, skipping", cf); continue; } _water_feature[cf].grffile = _cur.grffile; _water_feature[cf].group = _cur.spritegroups[groupid]; } } static void StationMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *stations = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { stations[i] = buf->ReadByte(); } uint8 cidcount = buf->ReadByte(); for (uint c = 0; c < cidcount; c++) { uint8 ctype = buf->ReadByte(); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) continue; ctype = TranslateCargo(GSF_STATIONS, ctype); if (ctype == CT_INVALID) continue; for (uint i = 0; i < idcount; i++) { StationSpec *statspec = _cur.grffile->stations == NULL ? NULL : _cur.grffile->stations[stations[i]]; if (statspec == NULL) { grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]); continue; } statspec->grf_prop.spritegroup[ctype] = _cur.spritegroups[groupid]; } } uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) return; for (uint i = 0; i < idcount; i++) { StationSpec *statspec = _cur.grffile->stations == NULL ? NULL : _cur.grffile->stations[stations[i]]; if (statspec == NULL) { grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]); continue; } if (statspec->grf_prop.grffile != NULL) { grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X mapped multiple times, skipping", stations[i]); continue; } statspec->grf_prop.spritegroup[CT_DEFAULT] = _cur.spritegroups[groupid]; statspec->grf_prop.grffile = _cur.grffile; statspec->grf_prop.local_id = stations[i]; StationClass::Assign(statspec); } } static void TownHouseMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *houses = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { houses[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "TownHouseMapSpriteGroup")) return; if (_cur.grffile->housespec == NULL) { grfmsg(1, "TownHouseMapSpriteGroup: No houses defined, skipping"); return; } for (uint i = 0; i < idcount; i++) { HouseSpec *hs = _cur.grffile->housespec[houses[i]]; if (hs == NULL) { grfmsg(1, "TownHouseMapSpriteGroup: House %d undefined, skipping.", houses[i]); continue; } hs->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; } } static void IndustryMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *industries = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { industries[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "IndustryMapSpriteGroup")) return; if (_cur.grffile->industryspec == NULL) { grfmsg(1, "IndustryMapSpriteGroup: No industries defined, skipping"); return; } for (uint i = 0; i < idcount; i++) { IndustrySpec *indsp = _cur.grffile->industryspec[industries[i]]; if (indsp == NULL) { grfmsg(1, "IndustryMapSpriteGroup: Industry %d undefined, skipping", industries[i]); continue; } indsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; } } static void IndustrytileMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *indtiles = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { indtiles[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "IndustrytileMapSpriteGroup")) return; if (_cur.grffile->indtspec == NULL) { grfmsg(1, "IndustrytileMapSpriteGroup: No industry tiles defined, skipping"); return; } for (uint i = 0; i < idcount; i++) { IndustryTileSpec *indtsp = _cur.grffile->indtspec[indtiles[i]]; if (indtsp == NULL) { grfmsg(1, "IndustrytileMapSpriteGroup: Industry tile %d undefined, skipping", indtiles[i]); continue; } indtsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; } } static void CargoMapSpriteGroup(ByteReader *buf, uint8 idcount) { CargoID *cargoes = AllocaM(CargoID, idcount); for (uint i = 0; i < idcount; i++) { cargoes[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "CargoMapSpriteGroup")) return; for (uint i = 0; i < idcount; i++) { CargoID cid = cargoes[i]; if (cid >= NUM_CARGO) { grfmsg(1, "CargoMapSpriteGroup: Cargo ID %d out of range, skipping", cid); continue; } CargoSpec *cs = CargoSpec::Get(cid); cs->grffile = _cur.grffile; cs->group = _cur.spritegroups[groupid]; } } static void ObjectMapSpriteGroup(ByteReader *buf, uint8 idcount) { if (_cur.grffile->objectspec == NULL) { grfmsg(1, "ObjectMapSpriteGroup: No object tiles defined, skipping"); return; } uint8 *objects = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { objects[i] = buf->ReadByte(); } uint8 cidcount = buf->ReadByte(); for (uint c = 0; c < cidcount; c++) { uint8 ctype = buf->ReadByte(); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "ObjectMapSpriteGroup")) continue; ctype = TranslateCargo(GSF_OBJECTS, ctype); if (ctype == CT_INVALID) continue; for (uint i = 0; i < idcount; i++) { ObjectSpec *spec = _cur.grffile->objectspec[objects[i]]; if (spec == NULL) { grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X undefined, skipping", objects[i]); continue; } spec->grf_prop.spritegroup[ctype] = _cur.spritegroups[groupid]; } } uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "ObjectMapSpriteGroup")) return; for (uint i = 0; i < idcount; i++) { ObjectSpec *spec = _cur.grffile->objectspec[objects[i]]; if (spec == NULL) { grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X undefined, skipping", objects[i]); continue; } if (spec->grf_prop.grffile != NULL) { grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X mapped multiple times, skipping", objects[i]); continue; } spec->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; spec->grf_prop.grffile = _cur.grffile; spec->grf_prop.local_id = objects[i]; } } static void RailTypeMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *railtypes = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { railtypes[i] = _cur.grffile->railtype_map[buf->ReadByte()]; } uint8 cidcount = buf->ReadByte(); for (uint c = 0; c < cidcount; c++) { uint8 ctype = buf->ReadByte(); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "RailTypeMapSpriteGroup")) continue; if (ctype >= RTSG_END) continue; extern RailtypeInfo _railtypes[RAILTYPE_END]; for (uint i = 0; i < idcount; i++) { if (railtypes[i] != INVALID_RAILTYPE) { RailtypeInfo *rti = &_railtypes[railtypes[i]]; rti->grffile[ctype] = _cur.grffile; rti->group[ctype] = _cur.spritegroups[groupid]; } } } /* Railtypes do not use the default group. */ buf->ReadWord(); } static void AirportMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *airports = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { airports[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "AirportMapSpriteGroup")) return; if (_cur.grffile->airportspec == NULL) { grfmsg(1, "AirportMapSpriteGroup: No airports defined, skipping"); return; } for (uint i = 0; i < idcount; i++) { AirportSpec *as = _cur.grffile->airportspec[airports[i]]; if (as == NULL) { grfmsg(1, "AirportMapSpriteGroup: Airport %d undefined, skipping", airports[i]); continue; } as->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; } } static void AirportTileMapSpriteGroup(ByteReader *buf, uint8 idcount) { uint8 *airptiles = AllocaM(uint8, idcount); for (uint i = 0; i < idcount; i++) { airptiles[i] = buf->ReadByte(); } /* Skip the cargo type section, we only care about the default group */ uint8 cidcount = buf->ReadByte(); buf->Skip(cidcount * 3); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "AirportTileMapSpriteGroup")) return; if (_cur.grffile->airtspec == NULL) { grfmsg(1, "AirportTileMapSpriteGroup: No airport tiles defined, skipping"); return; } for (uint i = 0; i < idcount; i++) { AirportTileSpec *airtsp = _cur.grffile->airtspec[airptiles[i]]; if (airtsp == NULL) { grfmsg(1, "AirportTileMapSpriteGroup: Airport tile %d undefined, skipping", airptiles[i]); continue; } airtsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid]; } } /* Action 0x03 */ static void FeatureMapSpriteGroup(ByteReader *buf) { /* <03> ... [ ]... * id-list := [] [id-list] * cargo-list := [cargo-list] * * B feature see action 0 * B n-id bits 0-6: how many IDs this definition applies to * bit 7: if set, this is a wagon override definition (see below) * B ids the IDs for which this definition applies * B num-cid number of cargo IDs (sprite group IDs) in this definition * can be zero, in that case the def-cid is used always * B cargo-type type of this cargo type (e.g. mail=2, wood=7, see below) * W cid cargo ID (sprite group ID) for this type of cargo * W def-cid default cargo ID (sprite group ID) */ uint8 feature = buf->ReadByte(); uint8 idcount = buf->ReadByte(); /* If idcount is zero, this is a feature callback */ if (idcount == 0) { /* Skip number of cargo ids? */ buf->ReadByte(); uint16 groupid = buf->ReadWord(); if (!IsValidGroupID(groupid, "FeatureMapSpriteGroup")) return; grfmsg(6, "FeatureMapSpriteGroup: Adding generic feature callback for feature %d", feature); AddGenericCallback(feature, _cur.grffile, _cur.spritegroups[groupid]); return; } /* Mark the feature as used by the grf (generic callbacks do not count) */ SetBit(_cur.grffile->grf_features, feature); grfmsg(6, "FeatureMapSpriteGroup: Feature %d, %d ids", feature, idcount); switch (feature) { case GSF_TRAINS: case GSF_ROADVEHICLES: case GSF_SHIPS: case GSF_AIRCRAFT: VehicleMapSpriteGroup(buf, feature, idcount); return; case GSF_CANALS: CanalMapSpriteGroup(buf, idcount); return; case GSF_STATIONS: StationMapSpriteGroup(buf, idcount); return; case GSF_HOUSES: TownHouseMapSpriteGroup(buf, idcount); return; case GSF_INDUSTRIES: IndustryMapSpriteGroup(buf, idcount); return; case GSF_INDUSTRYTILES: IndustrytileMapSpriteGroup(buf, idcount); return; case GSF_CARGOES: CargoMapSpriteGroup(buf, idcount); return; case GSF_AIRPORTS: AirportMapSpriteGroup(buf, idcount); return; case GSF_OBJECTS: ObjectMapSpriteGroup(buf, idcount); break; case GSF_RAILTYPES: RailTypeMapSpriteGroup(buf, idcount); break; case GSF_AIRPORTTILES: AirportTileMapSpriteGroup(buf, idcount); return; default: grfmsg(1, "FeatureMapSpriteGroup: Unsupported feature %d, skipping", feature); return; } } /* Action 0x04 */ static void FeatureNewName(ByteReader *buf) { /* <04> * * B veh-type see action 0 (as 00..07, + 0A * But IF veh-type = 48, then generic text * B language-id If bit 6 is set, This is the extended language scheme, * with up to 64 language. * Otherwise, it is a mapping where set bits have meaning * 0 = american, 1 = english, 2 = german, 3 = french, 4 = spanish * Bit 7 set means this is a generic text, not a vehicle one (or else) * B num-veh number of vehicles which are getting a new name * B/W offset number of the first vehicle that gets a new name * Byte : ID of vehicle to change * Word : ID of string to change/add * S data new texts, each of them zero-terminated, after * which the next name begins. */ bool new_scheme = _cur.grffile->grf_version >= 7; uint8 feature = buf->ReadByte(); uint8 lang = buf->ReadByte(); uint8 num = buf->ReadByte(); bool generic = HasBit(lang, 7); uint16 id; if (generic) { id = buf->ReadWord(); } else if (feature <= GSF_AIRCRAFT) { id = buf->ReadExtendedByte(); } else { id = buf->ReadByte(); } ClrBit(lang, 7); uint16 endid = id + num; grfmsg(6, "FeatureNewName: About to rename engines %d..%d (feature %d) in language 0x%02X", id, endid, feature, lang); for (; id < endid && buf->HasData(); id++) { const char *name = buf->ReadString(); grfmsg(8, "FeatureNewName: 0x%04X <- %s", id, name); switch (feature) { case GSF_TRAINS: case GSF_ROADVEHICLES: case GSF_SHIPS: case GSF_AIRCRAFT: if (!generic) { Engine *e = GetNewEngine(_cur.grffile, (VehicleType)feature, id, HasBit(_cur.grfconfig->flags, GCF_STATIC)); if (e == NULL) break; StringID string = AddGRFString(_cur.grffile->grfid, e->index, lang, new_scheme, false, name, e->info.string_id); e->info.string_id = string; } else { AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED); } break; case GSF_INDUSTRIES: { AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED); break; } case GSF_HOUSES: default: switch (GB(id, 8, 8)) { case 0xC4: // Station class name if (_cur.grffile->stations == NULL || _cur.grffile->stations[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8)); } else { StationClassID cls_id = _cur.grffile->stations[GB(id, 0, 8)]->cls_id; StationClass::SetName(cls_id, AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED)); } break; case 0xC5: // Station name if (_cur.grffile->stations == NULL || _cur.grffile->stations[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8)); } else { _cur.grffile->stations[GB(id, 0, 8)]->name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED); } break; case 0xC7: // Airporttile name if (_cur.grffile->airtspec == NULL || _cur.grffile->airtspec[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined airport tile 0x%X, ignoring", GB(id, 0, 8)); } else { _cur.grffile->airtspec[GB(id, 0, 8)]->name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED); } break; case 0xC9: // House name if (_cur.grffile->housespec == NULL || _cur.grffile->housespec[GB(id, 0, 8)] == NULL) { grfmsg(1, "FeatureNewName: Attempt to name undefined house 0x%X, ignoring.", GB(id, 0, 8)); } else { _cur.grffile->housespec[GB(id, 0, 8)]->building_name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED); } break; case 0xD0: case 0xD1: case 0xD2: case 0xD3: case 0xDC: AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED); break; default: grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id); break; } break; } } } /** * Sanitize incoming sprite offsets for Action 5 graphics replacements. * @param num The number of sprites to load. * @param offset Offset from the base. * @param max_sprites The maximum number of sprites that can be loaded in this action 5. * @param name Used for error warnings. * @return The number of sprites that is going to be skipped. */ static uint16 SanitizeSpriteOffset(uint16& num, uint16 offset, int max_sprites, const char *name) { if (offset >= max_sprites) { grfmsg(1, "GraphicsNew: %s sprite offset must be less than %i, skipping", name, max_sprites); uint orig_num = num; num = 0; return orig_num; } if (offset + num > max_sprites) { grfmsg(4, "GraphicsNew: %s sprite overflow, truncating...", name); uint orig_num = num; num = max(max_sprites - offset, 0); return orig_num - num; } return 0; } /** The type of action 5 type. */ enum Action5BlockType { A5BLOCK_FIXED, ///< Only allow replacing a whole block of sprites. (TTDP compatible) A5BLOCK_ALLOW_OFFSET, ///< Allow replacing any subset by specifiing an offset. A5BLOCK_INVALID, ///< unknown/not-implemented type }; /** Information about a single action 5 type. */ struct Action5Type { Action5BlockType block_type; ///< How is this Action5 type processed? SpriteID sprite_base; ///< Load the sprites starting from this sprite. uint16 min_sprites; ///< If the Action5 contains less sprites, the whole block will be ignored. uint16 max_sprites; ///< If the Action5 contains more sprites, only the first max_sprites sprites will be used. const char *name; ///< Name for error messages. }; /** The information about action 5 types. */ static const Action5Type _action5_types[] = { /* Note: min_sprites should not be changed. Therefore these constants are directly here and not in sprites.h */ /* 0x00 */ { A5BLOCK_INVALID, 0, 0, 0, "Type 0x00" }, /* 0x01 */ { A5BLOCK_INVALID, 0, 0, 0, "Type 0x01" }, /* 0x02 */ { A5BLOCK_INVALID, 0, 0, 0, "Type 0x02" }, /* 0x03 */ { A5BLOCK_INVALID, 0, 0, 0, "Type 0x03" }, /* 0x04 */ { A5BLOCK_ALLOW_OFFSET, SPR_SIGNALS_BASE, 1, PRESIGNAL_SEMAPHORE_AND_PBS_SPRITE_COUNT, "Signal graphics" }, /* 0x05 */ { A5BLOCK_ALLOW_OFFSET, SPR_ELRAIL_BASE, 1, ELRAIL_SPRITE_COUNT, "Catenary graphics" }, /* 0x06 */ { A5BLOCK_ALLOW_OFFSET, SPR_SLOPES_BASE, 1, NORMAL_AND_HALFTILE_FOUNDATION_SPRITE_COUNT, "Foundation graphics" }, /* 0x07 */ { A5BLOCK_INVALID, 0, 75, 0, "TTDP GUI graphics" }, // Not used by OTTD. /* 0x08 */ { A5BLOCK_ALLOW_OFFSET, SPR_CANALS_BASE, 1, CANALS_SPRITE_COUNT, "Canal graphics" }, /* 0x09 */ { A5BLOCK_ALLOW_OFFSET, SPR_ONEWAY_BASE, 1, ONEWAY_SPRITE_COUNT, "One way road graphics" }, /* 0x0A */ { A5BLOCK_ALLOW_OFFSET, SPR_2CCMAP_BASE, 1, TWOCCMAP_SPRITE_COUNT, "2CC colour maps" }, /* 0x0B */ { A5BLOCK_ALLOW_OFFSET, SPR_TRAMWAY_BASE, 1, TRAMWAY_SPRITE_COUNT, "Tramway graphics" }, /* 0x0C */ { A5BLOCK_INVALID, 0, 133, 0, "Snowy temperate tree" }, // Not yet used by OTTD. /* 0x0D */ { A5BLOCK_FIXED, SPR_SHORE_BASE, 16, SPR_SHORE_SPRITE_COUNT, "Shore graphics" }, /* 0x0E */ { A5BLOCK_INVALID, 0, 0, 0, "New Signals graphics" }, // Not yet used by OTTD. /* 0x0F */ { A5BLOCK_ALLOW_OFFSET, SPR_TRACKS_FOR_SLOPES_BASE, 1, TRACKS_FOR_SLOPES_SPRITE_COUNT, "Sloped rail track" }, /* 0x10 */ { A5BLOCK_ALLOW_OFFSET, SPR_AIRPORTX_BASE, 1, AIRPORTX_SPRITE_COUNT, "Airport graphics" }, /* 0x11 */ { A5BLOCK_ALLOW_OFFSET, SPR_ROADSTOP_BASE, 1, ROADSTOP_SPRITE_COUNT, "Road stop graphics" }, /* 0x12 */ { A5BLOCK_ALLOW_OFFSET, SPR_AQUEDUCT_BASE, 1, AQUEDUCT_SPRITE_COUNT, "Aqueduct graphics" }, /* 0x13 */ { A5BLOCK_ALLOW_OFFSET, SPR_AUTORAIL_BASE, 1, AUTORAIL_SPRITE_COUNT, "Autorail graphics" }, /* 0x14 */ { A5BLOCK_ALLOW_OFFSET, SPR_FLAGS_BASE, 1, FLAGS_SPRITE_COUNT, "Flag graphics" }, /* 0x15 */ { A5BLOCK_ALLOW_OFFSET, SPR_OPENTTD_BASE, 1, OPENTTD_SPRITE_COUNT, "OpenTTD GUI graphics" }, /* 0x16 */ { A5BLOCK_ALLOW_OFFSET, SPR_AIRPORT_PREVIEW_BASE, 1, SPR_AIRPORT_PREVIEW_COUNT, "Airport preview graphics" }, }; /* Action 0x05 */ static void GraphicsNew(ByteReader *buf) { /* <05> * * B graphics-type What set of graphics the sprites define. * E num-sprites How many sprites are in this set? * V other data Graphics type specific data. Currently unused. */ /* TODO */ uint8 type = buf->ReadByte(); uint16 num = buf->ReadExtendedByte(); uint16 offset = HasBit(type, 7) ? buf->ReadExtendedByte() : 0; ClrBit(type, 7); // Clear the high bit as that only indicates whether there is an offset. if ((type == 0x0D) && (num == 10) && _cur.grffile->is_ottdfile) { /* Special not-TTDP-compatible case used in openttd.grf * Missing shore sprites and initialisation of SPR_SHORE_BASE */ grfmsg(2, "GraphicsNew: Loading 10 missing shore sprites from extra grf."); LoadNextSprite(SPR_SHORE_BASE + 0, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_S LoadNextSprite(SPR_SHORE_BASE + 5, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_W LoadNextSprite(SPR_SHORE_BASE + 7, _cur.file_index, _cur.nfo_line++); // SLOPE_WSE LoadNextSprite(SPR_SHORE_BASE + 10, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_N LoadNextSprite(SPR_SHORE_BASE + 11, _cur.file_index, _cur.nfo_line++); // SLOPE_NWS LoadNextSprite(SPR_SHORE_BASE + 13, _cur.file_index, _cur.nfo_line++); // SLOPE_ENW LoadNextSprite(SPR_SHORE_BASE + 14, _cur.file_index, _cur.nfo_line++); // SLOPE_SEN LoadNextSprite(SPR_SHORE_BASE + 15, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_E LoadNextSprite(SPR_SHORE_BASE + 16, _cur.file_index, _cur.nfo_line++); // SLOPE_EW LoadNextSprite(SPR_SHORE_BASE + 17, _cur.file_index, _cur.nfo_line++); // SLOPE_NS if (_loaded_newgrf_features.shore == SHORE_REPLACE_NONE) _loaded_newgrf_features.shore = SHORE_REPLACE_ONLY_NEW; return; } /* Supported type? */ if ((type >= lengthof(_action5_types)) || (_action5_types[type].block_type == A5BLOCK_INVALID)) { grfmsg(2, "GraphicsNew: Custom graphics (type 0x%02X) sprite block of length %u (unimplemented, ignoring)", type, num); _cur.skip_sprites = num; return; } const Action5Type *action5_type = &_action5_types[type]; /* Contrary to TTDP we allow always to specify too few sprites as we allow always an offset, * except for the long version of the shore type: * Ignore offset if not allowed */ if ((action5_type->block_type != A5BLOCK_ALLOW_OFFSET) && (offset != 0)) { grfmsg(1, "GraphicsNew: %s (type 0x%02X) do not allow an field. Ignoring offset.", action5_type->name, type); offset = 0; } /* Ignore action5 if too few sprites are specified. (for TTDP compatibility) * This does not make sense, if is allowed */ if ((action5_type->block_type == A5BLOCK_FIXED) && (num < action5_type->min_sprites)) { grfmsg(1, "GraphicsNew: %s (type 0x%02X) count must be at least %d. Only %d were specified. Skipping.", action5_type->name, type, action5_type->min_sprites, num); _cur.skip_sprites = num; return; } /* Load at most max_sprites sprites. Skip remaining sprites. (for compatibility with TTDP and future extentions) */ uint16 skip_num = SanitizeSpriteOffset(num, offset, action5_type->max_sprites, action5_type->name); SpriteID replace = action5_type->sprite_base + offset; /* Load sprites starting from , then skip sprites. */ grfmsg(2, "GraphicsNew: Replacing sprites %d to %d of %s (type 0x%02X) at SpriteID 0x%04X", offset, offset + num - 1, action5_type->name, type, replace); for (; num > 0; num--) { _cur.nfo_line++; LoadNextSprite(replace == 0 ? _cur.spriteid++ : replace++, _cur.file_index, _cur.nfo_line); } if (type == 0x0D) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_5; _cur.skip_sprites = skip_num; } /* Action 0x05 (SKIP) */ static void SkipAct5(ByteReader *buf) { /* Ignore type byte */ buf->ReadByte(); /* Skip the sprites of this action */ _cur.skip_sprites = buf->ReadExtendedByte(); grfmsg(3, "SkipAct5: Skipping %d sprites", _cur.skip_sprites); } /** * Check whether we are (obviously) missing some of the extra * (Action 0x05) sprites that we like to use. * When missing sprites are found a warning will be shown. */ void CheckForMissingSprites() { /* Don't break out quickly, but allow to check the other * sprites as well, so we can give the best information. */ bool missing = false; for (uint8 i = 0; i < lengthof(_action5_types); i++) { const Action5Type *type = &_action5_types[i]; if (type->block_type == A5BLOCK_INVALID) continue; for (uint j = 0; j < type->max_sprites; j++) { if (!SpriteExists(type->sprite_base + j)) { DEBUG(grf, 0, "%s sprites are missing", type->name); missing = true; /* No need to log more of the same. */ break; } } } if (missing) { ShowErrorMessage(STR_NEWGRF_ERROR_MISSING_SPRITES, INVALID_STRING_ID, WL_CRITICAL); } } /** * Reads a variable common to VarAction2 and Action7/9/D. * * Returns VarAction2 variable 'param' resp. Action7/9/D variable '0x80 + param'. * If a variable is not accessible from all four actions, it is handled in the action specific functions. * * @param param variable number (as for VarAction2, for Action7/9/D you have to subtract 0x80 first). * @param value returns the value of the variable. * @param grffile NewGRF querying the variable * @return true iff the variable is known and the value is returned in 'value'. */ bool GetGlobalVariable(byte param, uint32 *value, const GRFFile *grffile) { switch (param) { case 0x00: // current date *value = max(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0); return true; case 0x01: // current year *value = Clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR; return true; case 0x02: { // detailed date information: month of year (bit 0-7), day of month (bit 8-12), leap year (bit 15), day of year (bit 16-24) YearMonthDay ymd; ConvertDateToYMD(_date, &ymd); Date start_of_year = ConvertYMDToDate(ymd.year, 0, 1); *value = ymd.month | (ymd.day - 1) << 8 | (IsLeapYear(ymd.year) ? 1 << 15 : 0) | (_date - start_of_year) << 16; return true; } case 0x03: // current climate, 0=temp, 1=arctic, 2=trop, 3=toyland *value = _settings_game.game_creation.landscape; return true; case 0x06: // road traffic side, bit 4 clear=left, set=right *value = _settings_game.vehicle.road_side << 4; return true; case 0x09: // date fraction *value = _date_fract * 885; return true; case 0x0A: // animation counter *value = _tick_counter; return true; case 0x0B: { // TTDPatch version uint major = 2; uint minor = 6; uint revision = 1; // special case: 2.0.1 is 2.0.10 uint build = 1382; *value = (major << 24) | (minor << 20) | (revision << 16) | build; return true; } case 0x0D: // TTD Version, 00=DOS, 01=Windows *value = _cur.grfconfig->palette & GRFP_USE_MASK; return true; case 0x0E: // Y-offset for train sprites *value = _cur.grffile->traininfo_vehicle_pitch; return true; case 0x0F: // Rail track type cost factors *value = 0; SB(*value, 0, 8, GetRailTypeInfo(RAILTYPE_RAIL)->cost_multiplier); // normal rail if (_settings_game.vehicle.disable_elrails) { /* skip elrail multiplier - disabled */ SB(*value, 8, 8, GetRailTypeInfo(RAILTYPE_MONO)->cost_multiplier); // monorail } else { SB(*value, 8, 8, GetRailTypeInfo(RAILTYPE_ELECTRIC)->cost_multiplier); // electified railway /* Skip monorail multiplier - no space in result */ } SB(*value, 16, 8, GetRailTypeInfo(RAILTYPE_MAGLEV)->cost_multiplier); // maglev return true; case 0x11: // current rail tool type *value = 0; // constant fake value to avoid desync return true; case 0x12: // Game mode *value = _game_mode; return true; /* case 0x13: // Tile refresh offset to left not implemented */ /* case 0x14: // Tile refresh offset to right not implemented */ /* case 0x15: // Tile refresh offset upwards not implemented */ /* case 0x16: // Tile refresh offset downwards not implemented */ /* case 0x17: // temperate snow line not implemented */ case 0x1A: // Always -1 *value = UINT_MAX; return true; case 0x1B: // Display options *value = 0x3F; // constant fake value to avoid desync return true; case 0x1D: // TTD Platform, 00=TTDPatch, 01=OpenTTD *value = 1; return true; case 0x1E: // Miscellaneous GRF features *value = _misc_grf_features; /* Add the local flags */ assert(!HasBit(*value, GMB_TRAIN_WIDTH_32_PIXELS)); if (_cur.grffile->traininfo_vehicle_width == VEHICLEINFO_FULL_VEHICLE_WIDTH) SetBit(*value, GMB_TRAIN_WIDTH_32_PIXELS); return true; /* case 0x1F: // locale dependent settings not implemented to avoid desync */ case 0x20: { // snow line height byte snowline = GetSnowLine(); if (_settings_game.game_creation.landscape == LT_ARCTIC && snowline <= MAX_TILE_HEIGHT) { *value = Clamp(snowline * (grffile->grf_version >= 8 ? 1 : TILE_HEIGHT), 0, 0xFE); } else { /* No snow */ *value = 0xFF; } return true; } case 0x21: // OpenTTD version *value = _openttd_newgrf_version; return true; case 0x22: // difficulty level *value = _settings_game.difficulty.diff_level; return true; case 0x23: // long format date *value = _date; return true; case 0x24: // long format year *value = _cur_year; return true; default: return false; } } static uint32 GetParamVal(byte param, uint32 *cond_val) { /* First handle variable common with VarAction2 */ uint32 value; if (GetGlobalVariable(param - 0x80, &value, _cur.grffile)) return value; /* Non-common variable */ switch (param) { case 0x84: { // GRF loading stage uint32 res = 0; if (_cur.stage > GLS_INIT) SetBit(res, 0); if (_cur.stage == GLS_RESERVE) SetBit(res, 8); if (_cur.stage == GLS_ACTIVATION) SetBit(res, 9); return res; } case 0x85: // TTDPatch flags, only for bit tests if (cond_val == NULL) { /* Supported in Action 0x07 and 0x09, not 0x0D */ return 0; } else { uint32 param_val = _ttdpatch_flags[*cond_val / 0x20]; *cond_val %= 0x20; return param_val; } case 0x88: // GRF ID check return 0; /* case 0x99: Global ID offest not implemented */ default: /* GRF Parameter */ if (param < 0x80) return _cur.grffile->GetParam(param); /* In-game variable. */ grfmsg(1, "Unsupported in-game variable 0x%02X", param); return UINT_MAX; } } /* Action 0x06 */ static void CfgApply(ByteReader *buf) { /* <06> ... * * B param-num Number of parameter to substitute (First = "zero") * Ignored if that parameter was not specified in newgrf.cfg * B param-size How many bytes to replace. If larger than 4, the * bytes of the following parameter are used. In that * case, nothing is applied unless *all* parameters * were specified. * B offset Offset into data from beginning of next sprite * to place where parameter is to be stored. */ /* Preload the next sprite */ size_t pos = FioGetPos(); uint16 num = FioReadWord(); uint8 type = FioReadByte(); byte *preload_sprite = NULL; /* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */ if (type == 0xFF) { preload_sprite = MallocT(num); FioReadBlock(preload_sprite, num); } /* Reset the file position to the start of the next sprite */ FioSeekTo(pos, SEEK_SET); if (type != 0xFF) { grfmsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)"); free(preload_sprite); return; } GRFLocation location(_cur.grfconfig->ident.grfid, _cur.nfo_line + 1); GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location); if (it != _grf_line_to_action6_sprite_override.end()) { free(preload_sprite); preload_sprite = _grf_line_to_action6_sprite_override[location]; } else { _grf_line_to_action6_sprite_override[location] = preload_sprite; } /* Now perform the Action 0x06 on our data. */ for (;;) { uint i; uint param_num; uint param_size; uint offset; bool add_value; /* Read the parameter to apply. 0xFF indicates no more data to change. */ param_num = buf->ReadByte(); if (param_num == 0xFF) break; /* Get the size of the parameter to use. If the size covers multiple * double words, sequential parameter values are used. */ param_size = buf->ReadByte(); /* Bit 7 of param_size indicates we should add to the original value * instead of replacing it. */ add_value = HasBit(param_size, 7); param_size = GB(param_size, 0, 7); /* Where to apply the data to within the pseudo sprite data. */ offset = buf->ReadExtendedByte(); /* If the parameter is a GRF parameter (not an internal variable) check * if it (and all further sequential parameters) has been defined. */ if (param_num < 0x80 && (param_num + (param_size - 1) / 4) >= _cur.grffile->param_end) { grfmsg(2, "CfgApply: Ignoring (param %d not set)", (param_num + (param_size - 1) / 4)); break; } grfmsg(8, "CfgApply: Applying %u bytes from parameter 0x%02X at offset 0x%04X", param_size, param_num, offset); bool carry = false; for (i = 0; i < param_size && offset + i < num; i++) { uint32 value = GetParamVal(param_num + i / 4, NULL); /* Reset carry flag for each iteration of the variable (only really * matters if param_size is greater than 4) */ if (i % 4 == 0) carry = false; if (add_value) { uint new_value = preload_sprite[offset + i] + GB(value, (i % 4) * 8, 8) + (carry ? 1 : 0); preload_sprite[offset + i] = GB(new_value, 0, 8); /* Check if the addition overflowed */ carry = new_value >= 256; } else { preload_sprite[offset + i] = GB(value, (i % 4) * 8, 8); } } } } /** * Disable a static NewGRF when it is influencing another (non-static) * NewGRF as this could cause desyncs. * * We could just tell the NewGRF querying that the file doesn't exist, * but that might give unwanted results. Disabling the NewGRF gives the * best result as no NewGRF author can complain about that. * @param c The NewGRF to disable. */ static void DisableStaticNewGRFInfluencingNonStaticNewGRFs(GRFConfig *c) { GRFError *error = DisableGrf(STR_NEWGRF_ERROR_STATIC_GRF_CAUSES_DESYNC, c); error->data = strdup(_cur.grfconfig->GetName()); } /* Action 0x07 * Action 0x09 */ static void SkipIf(ByteReader *buf) { /* <07/09> * * B param-num * B param-size * B condition-type * V value * B num-sprites */ /* TODO: More params. More condition types. */ uint32 cond_val = 0; uint32 mask = 0; bool result; uint8 param = buf->ReadByte(); uint8 paramsize = buf->ReadByte(); uint8 condtype = buf->ReadByte(); if (condtype < 2) { /* Always 1 for bit tests, the given value should be ignored. */ paramsize = 1; } switch (paramsize) { case 8: cond_val = buf->ReadDWord(); mask = buf->ReadDWord(); break; case 4: cond_val = buf->ReadDWord(); mask = 0xFFFFFFFF; break; case 2: cond_val = buf->ReadWord(); mask = 0x0000FFFF; break; case 1: cond_val = buf->ReadByte(); mask = 0x000000FF; break; default: break; } if (param < 0x80 && _cur.grffile->param_end <= param) { grfmsg(7, "SkipIf: Param %d undefined, skipping test", param); return; } uint32 param_val = GetParamVal(param, &cond_val); grfmsg(7, "SkipIf: Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val); /* * Parameter (variable in specs) 0x88 can only have GRF ID checking * conditions, except conditions 0x0B, 0x0C (cargo availability) and * 0x0D, 0x0E (Rail type availability) as those ignore the parameter. * So, when the condition type is one of those, the specific variable * 0x88 code is skipped, so the "general" code for the cargo * availability conditions kicks in. */ if (param == 0x88 && (condtype < 0x0B || condtype > 0x0E)) { /* GRF ID checks */ GRFConfig *c = GetGRFConfig(cond_val, mask); if (c != NULL && HasBit(c->flags, GCF_STATIC) && !HasBit(_cur.grfconfig->flags, GCF_STATIC) && _networking) { DisableStaticNewGRFInfluencingNonStaticNewGRFs(c); c = NULL; } if (condtype != 10 && c == NULL) { grfmsg(7, "SkipIf: GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val)); return; } switch (condtype) { /* Tests 0x06 to 0x0A are only for param 0x88, GRFID checks */ case 0x06: // Is GRFID active? result = c->status == GCS_ACTIVATED; break; case 0x07: // Is GRFID non-active? result = c->status != GCS_ACTIVATED; break; case 0x08: // GRFID is not but will be active? result = c->status == GCS_INITIALISED; break; case 0x09: // GRFID is or will be active? result = c->status == GCS_ACTIVATED || c->status == GCS_INITIALISED; break; case 0x0A: // GRFID is not nor will be active /* This is the only condtype that doesn't get ignored if the GRFID is not found */ result = c == NULL || c->flags == GCS_DISABLED || c->status == GCS_NOT_FOUND; break; default: grfmsg(1, "SkipIf: Unsupported GRF condition type %02X. Ignoring", condtype); return; } } else { /* Parameter or variable tests */ switch (condtype) { case 0x00: result = !!(param_val & (1 << cond_val)); break; case 0x01: result = !(param_val & (1 << cond_val)); break; case 0x02: result = (param_val & mask) == cond_val; break; case 0x03: result = (param_val & mask) != cond_val; break; case 0x04: result = (param_val & mask) < cond_val; break; case 0x05: result = (param_val & mask) > cond_val; break; case 0x0B: result = GetCargoIDByLabel(BSWAP32(cond_val)) == CT_INVALID; break; case 0x0C: result = GetCargoIDByLabel(BSWAP32(cond_val)) != CT_INVALID; break; case 0x0D: result = GetRailTypeByLabel(BSWAP32(cond_val)) == INVALID_RAILTYPE; break; case 0x0E: result = GetRailTypeByLabel(BSWAP32(cond_val)) != INVALID_RAILTYPE; break; default: grfmsg(1, "SkipIf: Unsupported condition type %02X. Ignoring", condtype); return; } } if (!result) { grfmsg(2, "SkipIf: Not skipping sprites, test was false"); return; } uint8 numsprites = buf->ReadByte(); /* numsprites can be a GOTO label if it has been defined in the GRF * file. The jump will always be the first matching label that follows * the current nfo_line. If no matching label is found, the first matching * label in the file is used. */ GRFLabel *choice = NULL; for (GRFLabel *label = _cur.grffile->label; label != NULL; label = label->next) { if (label->label != numsprites) continue; /* Remember a goto before the current line */ if (choice == NULL) choice = label; /* If we find a label here, this is definitely good */ if (label->nfo_line > _cur.nfo_line) { choice = label; break; } } if (choice != NULL) { grfmsg(2, "SkipIf: Jumping to label 0x%0X at line %d, test was true", choice->label, choice->nfo_line); FioSeekTo(choice->pos, SEEK_SET); _cur.nfo_line = choice->nfo_line; return; } grfmsg(2, "SkipIf: Skipping %d sprites, test was true", numsprites); _cur.skip_sprites = numsprites; if (_cur.skip_sprites == 0) { /* Zero means there are no sprites to skip, so * we use -1 to indicate that all further * sprites should be skipped. */ _cur.skip_sprites = -1; /* If an action 8 hasn't been encountered yet, disable the grf. */ if (_cur.grfconfig->status != (_cur.stage < GLS_RESERVE ? GCS_INITIALISED : GCS_ACTIVATED)) { DisableGrf(); } } } /* Action 0x08 (GLS_FILESCAN) */ static void ScanInfo(ByteReader *buf) { uint8 grf_version = buf->ReadByte(); uint32 grfid = buf->ReadDWord(); const char *name = buf->ReadString(); _cur.grfconfig->ident.grfid = grfid; if (grf_version < 2 || grf_version > 8) { SetBit(_cur.grfconfig->flags, GCF_INVALID); DEBUG(grf, 0, "%s: NewGRF \"%s\" (GRFID %08X) uses GRF version %d, which is incompatible with this version of OpenTTD.", _cur.grfconfig->filename, name, BSWAP32(grfid), grf_version); } /* GRF IDs starting with 0xFF are reserved for internal TTDPatch use */ if (GB(grfid, 24, 8) == 0xFF) SetBit(_cur.grfconfig->flags, GCF_SYSTEM); AddGRFTextToList(&_cur.grfconfig->name->text, 0x7F, grfid, false, name); if (buf->HasData()) { const char *info = buf->ReadString(); AddGRFTextToList(&_cur.grfconfig->info->text, 0x7F, grfid, true, info); } /* GLS_INFOSCAN only looks for the action 8, so we can skip the rest of the file */ _cur.skip_sprites = -1; } /* Action 0x08 */ static void GRFInfo(ByteReader *buf) { /* <08> * * B version newgrf version, currently 06 * 4*B grf-id globally unique ID of this .grf file * S name name of this .grf set * S info string describing the set, and e.g. author and copyright */ uint8 version = buf->ReadByte(); uint32 grfid = buf->ReadDWord(); const char *name = buf->ReadString(); if (_cur.stage < GLS_RESERVE && _cur.grfconfig->status != GCS_UNKNOWN) { DisableGrf(STR_NEWGRF_ERROR_MULTIPLE_ACTION_8); return; } if (_cur.grffile->grfid != grfid) { DEBUG(grf, 0, "GRFInfo: GRFID %08X in FILESCAN stage does not match GRFID %08X in INIT/RESERVE/ACTIVATION stage", BSWAP32(_cur.grffile->grfid), BSWAP32(grfid)); _cur.grffile->grfid = grfid; } _cur.grffile->grf_version = version; _cur.grfconfig->status = _cur.stage < GLS_RESERVE ? GCS_INITIALISED : GCS_ACTIVATED; /* Do swap the GRFID for displaying purposes since people expect that */ DEBUG(grf, 1, "GRFInfo: Loaded GRFv%d set %08X - %s (palette: %s, version: %i)", version, BSWAP32(grfid), name, (_cur.grfconfig->palette & GRFP_USE_MASK) ? "Windows" : "DOS", _cur.grfconfig->version); } /* Action 0x0A */ static void SpriteReplace(ByteReader *buf) { /* <0A> [ ...] * : * * B num-sets How many sets of sprites to replace. * Each set: * B num-sprites How many sprites are in this set * W first-sprite First sprite number to replace */ uint8 num_sets = buf->ReadByte(); for (uint i = 0; i < num_sets; i++) { uint8 num_sprites = buf->ReadByte(); uint16 first_sprite = buf->ReadWord(); grfmsg(2, "SpriteReplace: [Set %d] Changing %d sprites, beginning with %d", i, num_sprites, first_sprite ); for (uint j = 0; j < num_sprites; j++) { int load_index = first_sprite + j; _cur.nfo_line++; LoadNextSprite(load_index, _cur.file_index, _cur.nfo_line); // XXX /* Shore sprites now located at different addresses. * So detect when the old ones get replaced. */ if (IsInsideMM(load_index, SPR_ORIGINALSHORE_START, SPR_ORIGINALSHORE_END + 1)) { if (_loaded_newgrf_features.shore != SHORE_REPLACE_ACTION_5) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_A; } } } } /* Action 0x0A (SKIP) */ static void SkipActA(ByteReader *buf) { uint8 num_sets = buf->ReadByte(); for (uint i = 0; i < num_sets; i++) { /* Skip the sprites this replaces */ _cur.skip_sprites += buf->ReadByte(); /* But ignore where they go */ buf->ReadWord(); } grfmsg(3, "SkipActA: Skipping %d sprites", _cur.skip_sprites); } /* Action 0x0B */ static void GRFLoadError(ByteReader *buf) { /* <0B> [ 00] [] 00 [] * * B severity 00: notice, contine loading grf file * 01: warning, continue loading grf file * 02: error, but continue loading grf file, and attempt * loading grf again when loading or starting next game * 03: error, abort loading and prevent loading again in * the future (only when restarting the patch) * B language-id see action 4, use 1F for built-in error messages * B message-id message to show, see below * S message for custom messages (message-id FF), text of the message * not present for built-in messages. * V data additional data for built-in (or custom) messages * B parnum parameter numbers to be shown in the message (maximum of 2) */ static const StringID msgstr[] = { STR_NEWGRF_ERROR_VERSION_NUMBER, STR_NEWGRF_ERROR_DOS_OR_WINDOWS, STR_NEWGRF_ERROR_UNSET_SWITCH, STR_NEWGRF_ERROR_INVALID_PARAMETER, STR_NEWGRF_ERROR_LOAD_BEFORE, STR_NEWGRF_ERROR_LOAD_AFTER, STR_NEWGRF_ERROR_OTTD_VERSION_NUMBER, }; static const StringID sevstr[] = { STR_NEWGRF_ERROR_MSG_INFO, STR_NEWGRF_ERROR_MSG_WARNING, STR_NEWGRF_ERROR_MSG_ERROR, STR_NEWGRF_ERROR_MSG_FATAL }; /* For now we can only show one message per newgrf file. */ if (_cur.grfconfig->error != NULL) return; byte severity = buf->ReadByte(); byte lang = buf->ReadByte(); byte message_id = buf->ReadByte(); /* Skip the error if it isn't valid for the current language. */ if (!CheckGrfLangID(lang, _cur.grffile->grf_version)) return; /* Skip the error until the activation stage unless bit 7 of the severity * is set. */ if (!HasBit(severity, 7) && _cur.stage == GLS_INIT) { grfmsg(7, "GRFLoadError: Skipping non-fatal GRFLoadError in stage %d", _cur.stage); return; } ClrBit(severity, 7); if (severity >= lengthof(sevstr)) { grfmsg(7, "GRFLoadError: Invalid severity id %d. Setting to 2 (non-fatal error).", severity); severity = 2; } else if (severity == 3) { /* This is a fatal error, so make sure the GRF is deactivated and no * more of it gets loaded. */ DisableGrf(); } if (message_id >= lengthof(msgstr) && message_id != 0xFF) { grfmsg(7, "GRFLoadError: Invalid message id."); return; } if (buf->Remaining() <= 1) { grfmsg(7, "GRFLoadError: No message data supplied."); return; } GRFError *error = new GRFError(sevstr[severity]); if (message_id == 0xFF) { /* This is a custom error message. */ if (buf->HasData()) { const char *message = buf->ReadString(); error->custom_message = TranslateTTDPatchCodes(_cur.grffile->grfid, lang, true, message); } else { grfmsg(7, "GRFLoadError: No custom message supplied."); error->custom_message = strdup(""); } } else { error->message = msgstr[message_id]; } if (buf->HasData()) { const char *data = buf->ReadString(); error->data = TranslateTTDPatchCodes(_cur.grffile->grfid, lang, true, data); } else { grfmsg(7, "GRFLoadError: No message data supplied."); error->data = strdup(""); } /* Only two parameter numbers can be used in the string. */ uint i = 0; for (; i < 2 && buf->HasData(); i++) { uint param_number = buf->ReadByte(); error->param_value[i] = _cur.grffile->GetParam(param_number); } error->num_params = i; _cur.grfconfig->error = error; } /* Action 0x0C */ static void GRFComment(ByteReader *buf) { /* <0C> [] * * V ignored Anything following the 0C is ignored */ if (!buf->HasData()) return; const char *text = buf->ReadString(); grfmsg(2, "GRFComment: %s", text); } /* Action 0x0D (GLS_SAFETYSCAN) */ static void SafeParamSet(ByteReader *buf) { uint8 target = buf->ReadByte(); /* Only writing GRF parameters is considered safe */ if (target < 0x80) return; /* GRM could be unsafe, but as here it can only happen after other GRFs * are loaded, it should be okay. If the GRF tried to use the slots it * reserved, it would be marked unsafe anyway. GRM for (e.g. bridge) * sprites is considered safe. */ SetBit(_cur.grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _cur.skip_sprites = -1; } static uint32 GetPatchVariable(uint8 param) { switch (param) { /* start year - 1920 */ case 0x0B: return max(_settings_game.game_creation.starting_year, ORIGINAL_BASE_YEAR) - ORIGINAL_BASE_YEAR; /* freight trains weight factor */ case 0x0E: return _settings_game.vehicle.freight_trains; /* empty wagon speed increase */ case 0x0F: return 0; /* plane speed factor; our patch option is reversed from TTDPatch's, * the following is good for 1x, 2x and 4x (most common?) and... * well not really for 3x. */ case 0x10: switch (_settings_game.vehicle.plane_speed) { default: case 4: return 1; case 3: return 2; case 2: return 2; case 1: return 4; } /* 2CC colourmap base sprite */ case 0x11: return SPR_2CCMAP_BASE; /* map size: format = -MABXYSS * M : the type of map * bit 0 : set : squared map. Bit 1 is now not relevant * clear : rectangle map. Bit 1 will indicate the bigger edge of the map * bit 1 : set : Y is the bigger edge. Bit 0 is clear * clear : X is the bigger edge. * A : minimum edge(log2) of the map * B : maximum edge(log2) of the map * XY : edges(log2) of each side of the map. * SS : combination of both X and Y, thus giving the size(log2) of the map */ case 0x13: { byte map_bits = 0; byte log_X = MapLogX() - 6; // substraction is required to make the minimal size (64) zero based byte log_Y = MapLogY() - 6; byte max_edge = max(log_X, log_Y); if (log_X == log_Y) { // we have a squared map, since both edges are identical SetBit(map_bits, 0); } else { if (max_edge == log_Y) SetBit(map_bits, 1); // edge Y been the biggest, mark it } return (map_bits << 24) | (min(log_X, log_Y) << 20) | (max_edge << 16) | (log_X << 12) | (log_Y << 8) | (log_X + log_Y); } /* The maximum height of the map. */ case 0x14: return MAX_TILE_HEIGHT; default: grfmsg(2, "ParamSet: Unknown Patch variable 0x%02X.", param); return 0; } } static uint32 PerformGRM(uint32 *grm, uint16 num_ids, uint16 count, uint8 op, uint8 target, const char *type) { uint start = 0; uint size = 0; if (op == 6) { /* Return GRFID of set that reserved ID */ return grm[_cur.grffile->GetParam(target)]; } /* With an operation of 2 or 3, we want to reserve a specific block of IDs */ if (op == 2 || op == 3) start = _cur.grffile->GetParam(target); for (uint i = start; i < num_ids; i++) { if (grm[i] == 0) { size++; } else { if (op == 2 || op == 3) break; start = i + 1; size = 0; } if (size == count) break; } if (size == count) { /* Got the slot... */ if (op == 0 || op == 3) { grfmsg(2, "ParamSet: GRM: Reserving %d %s at %d", count, type, start); for (uint i = 0; i < count; i++) grm[start + i] = _cur.grffile->grfid; } return start; } /* Unable to allocate */ if (op != 4 && op != 5) { /* Deactivate GRF */ grfmsg(0, "ParamSet: GRM: Unable to allocate %d %s, deactivating", count, type); DisableGrf(STR_NEWGRF_ERROR_GRM_FAILED); return UINT_MAX; } grfmsg(1, "ParamSet: GRM: Unable to allocate %d %s", count, type); return UINT_MAX; } /** Action 0x0D: Set parameter */ static void ParamSet(ByteReader *buf) { /* <0D> [] * * B target parameter number where result is stored * B operation operation to perform, see below * B source1 first source operand * B source2 second source operand * D data data to use in the calculation, not necessary * if both source1 and source2 refer to actual parameters * * Operations * 00 Set parameter equal to source1 * 01 Addition, source1 + source2 * 02 Subtraction, source1 - source2 * 03 Unsigned multiplication, source1 * source2 (both unsigned) * 04 Signed multiplication, source1 * source2 (both signed) * 05 Unsigned bit shift, source1 by source2 (source2 taken to be a * signed quantity; left shift if positive and right shift if * negative, source1 is unsigned) * 06 Signed bit shift, source1 by source2 * (source2 like in 05, and source1 as well) */ uint8 target = buf->ReadByte(); uint8 oper = buf->ReadByte(); uint32 src1 = buf->ReadByte(); uint32 src2 = buf->ReadByte(); uint32 data = 0; if (buf->Remaining() >= 4) data = buf->ReadDWord(); /* You can add 80 to the operation to make it apply only if the target * is not defined yet. In this respect, a parameter is taken to be * defined if any of the following applies: * - it has been set to any value in the newgrf(w).cfg parameter list * - it OR A PARAMETER WITH HIGHER NUMBER has been set to any value by * an earlier action D */ if (HasBit(oper, 7)) { if (target < 0x80 && target < _cur.grffile->param_end) { grfmsg(7, "ParamSet: Param %u already defined, skipping", target); return; } oper = GB(oper, 0, 7); } if (src2 == 0xFE) { if (GB(data, 0, 8) == 0xFF) { if (data == 0x0000FFFF) { /* Patch variables */ src1 = GetPatchVariable(src1); } else { /* GRF Resource Management */ uint8 op = src1; uint8 feature = GB(data, 8, 8); uint16 count = GB(data, 16, 16); if (_cur.stage == GLS_RESERVE) { if (feature == 0x08) { /* General sprites */ if (op == 0) { /* Check if the allocated sprites will fit below the original sprite limit */ if (_cur.spriteid + count >= 16384) { grfmsg(0, "ParamSet: GRM: Unable to allocate %d sprites; try changing NewGRF order", count); DisableGrf(STR_NEWGRF_ERROR_GRM_FAILED); return; } /* Reserve space at the current sprite ID */ grfmsg(4, "ParamSet: GRM: Allocated %d sprites at %d", count, _cur.spriteid); _grm_sprites[GRFLocation(_cur.grffile->grfid, _cur.nfo_line)] = _cur.spriteid; _cur.spriteid += count; } } /* Ignore GRM result during reservation */ src1 = 0; } else if (_cur.stage == GLS_ACTIVATION) { switch (feature) { case 0x00: // Trains case 0x01: // Road Vehicles case 0x02: // Ships case 0x03: // Aircraft if (!_settings_game.vehicle.dynamic_engines) { src1 = PerformGRM(&_grm_engines[_engine_offsets[feature]], _engine_counts[feature], count, op, target, "vehicles"); if (_cur.skip_sprites == -1) return; } else { /* GRM does not apply for dynamic engine allocation. */ switch (op) { case 2: case 3: src1 = _cur.grffile->GetParam(target); break; default: src1 = 0; break; } } break; case 0x08: // General sprites switch (op) { case 0: /* Return space reserved during reservation stage */ src1 = _grm_sprites[GRFLocation(_cur.grffile->grfid, _cur.nfo_line)]; grfmsg(4, "ParamSet: GRM: Using pre-allocated sprites at %d", src1); break; case 1: src1 = _cur.spriteid; break; default: grfmsg(1, "ParamSet: GRM: Unsupported operation %d for general sprites", op); return; } break; case 0x0B: // Cargo /* There are two ranges: one for cargo IDs and one for cargo bitmasks */ src1 = PerformGRM(_grm_cargoes, NUM_CARGO * 2, count, op, target, "cargoes"); if (_cur.skip_sprites == -1) return; break; default: grfmsg(1, "ParamSet: GRM: Unsupported feature 0x%X", feature); return; } } else { /* Ignore GRM during initialization */ src1 = 0; } } } else { /* Read another GRF File's parameter */ const GRFFile *file = GetFileByGRFID(data); GRFConfig *c = GetGRFConfig(data); if (c != NULL && HasBit(c->flags, GCF_STATIC) && !HasBit(_cur.grfconfig->flags, GCF_STATIC) && _networking) { /* Disable the read GRF if it is a static NewGRF. */ DisableStaticNewGRFInfluencingNonStaticNewGRFs(c); src1 = 0; } else if (file == NULL || (c != NULL && c->status == GCS_DISABLED)) { src1 = 0; } else if (src1 == 0xFE) { src1 = c->version; } else { src1 = file->GetParam(src1); } } } else { /* The source1 and source2 operands refer to the grf parameter number * like in action 6 and 7. In addition, they can refer to the special * variables available in action 7, or they can be FF to use the value * of . If referring to parameters that are undefined, a value * of 0 is used instead. */ src1 = (src1 == 0xFF) ? data : GetParamVal(src1, NULL); src2 = (src2 == 0xFF) ? data : GetParamVal(src2, NULL); } /* TODO: You can access the parameters of another GRF file by using * source2=FE, source1=the other GRF's parameter number and data=GRF * ID. This is only valid with operation 00 (set). If the GRF ID * cannot be found, a value of 0 is used for the parameter value * instead. */ uint32 res; switch (oper) { case 0x00: res = src1; break; case 0x01: res = src1 + src2; break; case 0x02: res = src1 - src2; break; case 0x03: res = src1 * src2; break; case 0x04: res = (int32)src1 * (int32)src2; break; case 0x05: if ((int32)src2 < 0) { res = src1 >> -(int32)src2; } else { res = src1 << src2; } break; case 0x06: if ((int32)src2 < 0) { res = (int32)src1 >> -(int32)src2; } else { res = (int32)src1 << src2; } break; case 0x07: // Bitwise AND res = src1 & src2; break; case 0x08: // Bitwise OR res = src1 | src2; break; case 0x09: // Unsigned division if (src2 == 0) { res = src1; } else { res = src1 / src2; } break; case 0x0A: // Signed divison if (src2 == 0) { res = src1; } else { res = (int32)src1 / (int32)src2; } break; case 0x0B: // Unsigned modulo if (src2 == 0) { res = src1; } else { res = src1 % src2; } break; case 0x0C: // Signed modulo if (src2 == 0) { res = src1; } else { res = (int32)src1 % (int32)src2; } break; default: grfmsg(0, "ParamSet: Unknown operation %d, skipping", oper); return; } switch (target) { case 0x8E: // Y-Offset for train sprites _cur.grffile->traininfo_vehicle_pitch = res; break; case 0x8F: { // Rail track type cost factors extern RailtypeInfo _railtypes[RAILTYPE_END]; _railtypes[RAILTYPE_RAIL].cost_multiplier = GB(res, 0, 8); if (_settings_game.vehicle.disable_elrails) { _railtypes[RAILTYPE_ELECTRIC].cost_multiplier = GB(res, 0, 8); _railtypes[RAILTYPE_MONO].cost_multiplier = GB(res, 8, 8); } else { _railtypes[RAILTYPE_ELECTRIC].cost_multiplier = GB(res, 8, 8); _railtypes[RAILTYPE_MONO].cost_multiplier = GB(res, 16, 8); } _railtypes[RAILTYPE_MAGLEV].cost_multiplier = GB(res, 16, 8); break; } /* @todo implement */ case 0x93: // Tile refresh offset to left case 0x94: // Tile refresh offset to right case 0x95: // Tile refresh offset upwards case 0x96: // Tile refresh offset downwards case 0x97: // Snow line height case 0x99: // Global ID offset grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target); break; case 0x9E: // Miscellaneous GRF features _misc_grf_features = res; /* Set train list engine width */ _cur.grffile->traininfo_vehicle_width = HasGrfMiscBit(GMB_TRAIN_WIDTH_32_PIXELS) ? VEHICLEINFO_FULL_VEHICLE_WIDTH : TRAININFO_DEFAULT_VEHICLE_WIDTH; /* Remove the local flags from the global flags */ ClrBit(_misc_grf_features, GMB_TRAIN_WIDTH_32_PIXELS); break; case 0x9F: // locale-dependent settings grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target); break; default: if (target < 0x80) { _cur.grffile->param[target] = res; /* param is zeroed by default */ if (target + 1U > _cur.grffile->param_end) _cur.grffile->param_end = target + 1; } else { grfmsg(7, "ParamSet: Skipping unknown target 0x%02X", target); } break; } } /* Action 0x0E (GLS_SAFETYSCAN) */ static void SafeGRFInhibit(ByteReader *buf) { /* <0E> * * B num Number of GRFIDs that follow * D grfids GRFIDs of the files to deactivate */ uint8 num = buf->ReadByte(); for (uint i = 0; i < num; i++) { uint32 grfid = buf->ReadDWord(); /* GRF is unsafe it if tries to deactivate other GRFs */ if (grfid != _cur.grfconfig->ident.grfid) { SetBit(_cur.grfconfig->flags, GCF_UNSAFE); /* Skip remainder of GRF */ _cur.skip_sprites = -1; return; } } } /* Action 0x0E */ static void GRFInhibit(ByteReader *buf) { /* <0E> * * B num Number of GRFIDs that follow * D grfids GRFIDs of the files to deactivate */ uint8 num = buf->ReadByte(); for (uint i = 0; i < num; i++) { uint32 grfid = buf->ReadDWord(); GRFConfig *file = GetGRFConfig(grfid); /* Unset activation flag */ if (file != NULL && file != _cur.grfconfig) { grfmsg(2, "GRFInhibit: Deactivating file '%s'", file->filename); GRFError *error = DisableGrf(STR_NEWGRF_ERROR_FORCEFULLY_DISABLED, file); error->data = strdup(_cur.grfconfig->GetName()); } } } /** Action 0x0F - Define Town names */ static void FeatureTownName(ByteReader *buf) { /* <0F> * * B id ID of this definition in bottom 7 bits (final definition if bit 7 set) * V style-name Name of the style (only for final definition) * B num-parts Number of parts in this definition * V parts The parts */ uint32 grfid = _cur.grffile->grfid; GRFTownName *townname = AddGRFTownName(grfid); byte id = buf->ReadByte(); grfmsg(6, "FeatureTownName: definition 0x%02X", id & 0x7F); if (HasBit(id, 7)) { /* Final definition */ ClrBit(id, 7); bool new_scheme = _cur.grffile->grf_version >= 7; byte lang = buf->ReadByte(); byte nb_gen = townname->nb_gen; do { ClrBit(lang, 7); const char *name = buf->ReadString(); char *lang_name = TranslateTTDPatchCodes(grfid, lang, false, name); grfmsg(6, "FeatureTownName: lang 0x%X -> '%s'", lang, lang_name); free(lang_name); townname->name[nb_gen] = AddGRFString(grfid, id, lang, new_scheme, false, name, STR_UNDEFINED); lang = buf->ReadByte(); } while (lang != 0); townname->id[nb_gen] = id; townname->nb_gen++; } byte nb = buf->ReadByte(); grfmsg(6, "FeatureTownName: %u parts", nb); townname->nbparts[id] = nb; townname->partlist[id] = CallocT(nb); for (int i = 0; i < nb; i++) { byte nbtext = buf->ReadByte(); townname->partlist[id][i].bitstart = buf->ReadByte(); townname->partlist[id][i].bitcount = buf->ReadByte(); townname->partlist[id][i].maxprob = 0; townname->partlist[id][i].partcount = nbtext; townname->partlist[id][i].parts = CallocT(nbtext); grfmsg(6, "FeatureTownName: part %d contains %d texts and will use GB(seed, %d, %d)", i, nbtext, townname->partlist[id][i].bitstart, townname->partlist[id][i].bitcount); for (int j = 0; j < nbtext; j++) { byte prob = buf->ReadByte(); if (HasBit(prob, 7)) { byte ref_id = buf->ReadByte(); if (townname->nbparts[ref_id] == 0) { grfmsg(0, "FeatureTownName: definition 0x%02X doesn't exist, deactivating", ref_id); DelGRFTownName(grfid); DisableGrf(STR_NEWGRF_ERROR_INVALID_ID); return; } grfmsg(6, "FeatureTownName: part %d, text %d, uses intermediate definition 0x%02X (with probability %d)", i, j, ref_id, prob & 0x7F); townname->partlist[id][i].parts[j].data.id = ref_id; } else { const char *text = buf->ReadString(); townname->partlist[id][i].parts[j].data.text = TranslateTTDPatchCodes(grfid, 0, false, text); grfmsg(6, "FeatureTownName: part %d, text %d, '%s' (with probability %d)", i, j, townname->partlist[id][i].parts[j].data.text, prob); } townname->partlist[id][i].parts[j].prob = prob; townname->partlist[id][i].maxprob += GB(prob, 0, 7); } grfmsg(6, "FeatureTownName: part %d, total probability %d", i, townname->partlist[id][i].maxprob); } } /** Action 0x10 - Define goto label */ static void DefineGotoLabel(ByteReader *buf) { /* <10>