/* $Id$ */ /* * 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 <http://www.gnu.org/licenses/>. */ /** @file newgrf_industries.cpp Handling of NewGRF industries. */ #include "stdafx.h" #include "debug.h" #include "industry.h" #include "newgrf.h" #include "newgrf_industries.h" #include "newgrf_text.h" #include "newgrf_town.h" #include "newgrf_cargo.h" #include "window_func.h" #include "town.h" #include "company_base.h" #include "command_func.h" #include "gui.h" #include "strings_func.h" #include "core/random_func.hpp" #include "table/strings.h" static uint32 _industry_creation_random_bits; /* Since the industry IDs defined by the GRF file don't necessarily correlate * to those used by the game, the IDs used for overriding old industries must be * translated when the idustry spec is set. */ IndustryOverrideManager _industry_mngr(NEW_INDUSTRYOFFSET, NUM_INDUSTRYTYPES, INVALID_INDUSTRYTYPE); IndustryTileOverrideManager _industile_mngr(NEW_INDUSTRYTILEOFFSET, NUM_INDUSTRYTILES, INVALID_INDUSTRYTILE); IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id) { if (grf_type == IT_INVALID) return IT_INVALID; if (!HasBit(grf_type, 7)) return GB(grf_type, 0, 6); return _industry_mngr.GetID(GB(grf_type, 0, 6), grf_id); } /** * Make an analysis of a tile and check for its belonging to the same * industry, and/or the same grf file * @param tile TileIndex of the tile to query * @param i Industry to which to compare the tile to * @param cur_grfid GRFID of the current callback chain * @return value encoded as per NFO specs */ uint32 GetIndustryIDAtOffset(TileIndex tile, const Industry *i, uint32 cur_grfid) { if (!IsTileType(tile, MP_INDUSTRY) || GetIndustryIndex(tile) != i->index) { /* No industry and/or the tile does not have the same industry as the one we match it with */ return 0xFFFF; } IndustryGfx gfx = GetCleanIndustryGfx(tile); const IndustryTileSpec *indtsp = GetIndustryTileSpec(gfx); if (gfx < NEW_INDUSTRYOFFSET) { // Does it belongs to an old type? /* It is an old tile. We have to see if it's been overriden */ if (indtsp->grf_prop.override == INVALID_INDUSTRYTILE) { // has it been overridden? return 0xFF << 8 | gfx; // no. Tag FF + the gfx id of that tile } /* Overriden */ const IndustryTileSpec *tile_ovr = GetIndustryTileSpec(indtsp->grf_prop.override); if (tile_ovr->grf_prop.grffile->grfid == cur_grfid) { return tile_ovr->grf_prop.local_id; // same grf file } else { return 0xFFFE; // not the same grf file } } /* Not an 'old type' tile */ if (indtsp->grf_prop.spritegroup != NULL) { // tile has a spritegroup ? if (indtsp->grf_prop.grffile->grfid == cur_grfid) { // same industry, same grf ? return indtsp->grf_prop.local_id; } else { return 0xFFFE; // Defined in another grf file } } /* The tile has no spritegroup */ return 0xFF << 8 | indtsp->grf_prop.subst_id; // so just give him the substitute } static uint32 GetClosestIndustry(TileIndex tile, IndustryType type, const Industry *current) { uint32 best_dist = UINT32_MAX; const Industry *i; FOR_ALL_INDUSTRIES(i) { if (i->type != type || i == current) continue; best_dist = min(best_dist, DistanceManhattan(tile, i->location.tile)); } return best_dist; } /** * Implementation of both var 67 and 68 * since the mechanism is almost the same, it is easier to regroup them on the same * function. * @param param_setID parameter given to the callback, which is the set id, or the local id, in our terminology * @param layout_filter on what layout do we filter? * @param current Industry for which the inquiry is made * @return the formatted answer to the callback : rr(reserved) cc(count) dddd(manhattan distance of closest sister) */ static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout_filter, const Industry *current) { uint32 GrfID = GetRegister(0x100); ///< Get the GRFID of the definition to look for in register 100h IndustryType ind_index; uint32 closest_dist = UINT32_MAX; byte count = 0; /* Determine what will be the industry type to look for */ switch (GrfID) { case 0: // this is a default industry type ind_index = param_setID; break; case 0xFFFFFFFF: // current grf GrfID = GetIndustrySpec(current->type)->grf_prop.grffile->grfid; /* FALL THROUGH */ default: // use the grfid specified in register 100h SetBit(param_setID, 7); // bit 7 means it is not an old type ind_index = MapNewGRFIndustryType(param_setID, GrfID); break; } /* If the industry type is invalid, there is none and the closest is far away. */ if (ind_index >= NUM_INDUSTRYTYPES) return 0 | 0xFFFF; if (layout_filter == 0) { /* If the filter is 0, it could be because none was specified as well as being really a 0. * In either case, just do the regular var67 */ closest_dist = GetClosestIndustry(current->location.tile, ind_index, current); count = min(Industry::GetIndustryTypeCount(ind_index), UINT8_MAX); // clamp to 8 bit } else { /* Count only those who match the same industry type and layout filter * Unfortunately, we have to do it manually */ const Industry *i; FOR_ALL_INDUSTRIES(i) { if (i->type == ind_index && i != current && i->selected_layout == layout_filter) { closest_dist = min(closest_dist, DistanceManhattan(current->location.tile, i->location.tile)); count++; } } } return count << 16 | GB(closest_dist, 0, 16); } /** * This function implements the industries variables that newGRF defines. * @param object the object that we want to query * @param variable that is queried * @param parameter unused * @param available will return false if ever the variable asked for does not exist * @return the value stored in the corresponding variable */ uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) { const Industry *industry = object->u.industry.ind; TileIndex tile = object->u.industry.tile; IndustryType type = object->u.industry.type; const IndustrySpec *indspec = GetIndustrySpec(type); /* Shall the variable get resolved in parent scope and are we not yet in parent scope? */ if (object->u.industry.gfx == INVALID_INDUSTRYTILE && object->scope == VSG_SCOPE_PARENT) { /* Pass the request on to the town of the industry */ const Town *t; if (industry != NULL) { t = industry->town; } else if (tile != INVALID_TILE) { t = ClosestTownFromTile(tile, UINT_MAX); } else { *available = false; return UINT_MAX; } return TownGetVariable(variable, parameter, available, t); } if (industry == NULL) { DEBUG(grf, 1, "Unhandled property 0x%X (no available industry) in callback 0x%x", variable, object->callback); *available = false; return UINT_MAX; } switch (variable) { case 0x40: case 0x41: case 0x42: { // waiting cargo, but only if those two callback flags are set uint16 callback = indspec->callback_mask; if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) { if ((indspec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) { if (industry->prod_level == 0) return 0; return min(industry->incoming_cargo_waiting[variable - 0x40] / industry->prod_level, (uint16)0xFFFF); } else { return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF); } } else { return 0; } } /* Manhattan distance of closes dry/water tile */ case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0); /* Layout number */ case 0x44: return industry->selected_layout; /* Company info */ case 0x45: { byte colours = 0; bool is_ai = false; const Company *c = Company::GetIfValid(industry->founder); if (c != NULL) { const Livery *l = &c->livery[LS_DEFAULT]; is_ai = c->is_ai; colours = l->colour1 + l->colour2 * 16; } return industry->founder | (is_ai ? 0x10000 : 0) | (colours << 24); } case 0x46: return industry->construction_date; // Date when built - long format - (in days) /* Get industry ID at offset param */ case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->location.tile), industry, object->grffile->grfid); /* Get random tile bits at offset param */ case 0x61: tile = GetNearbyTile(parameter, tile); return (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) ? GetIndustryRandomBits(tile) : 0; /* Land info of nearby tiles */ case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY); /* Animation stage of nearby tiles */ case 0x63: tile = GetNearbyTile(parameter, tile); if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) { return GetAnimationFrame(tile); } return 0xFFFFFFFF; /* Distance of nearest industry of given type */ case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry); /* Get town zone and Manhattan distance of closest town */ case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF); /* Get square of Euclidian distance of closes town */ case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF); /* Count of industry, distance of closest instance * 68 is the same as 67, but with a filtering on selected layout */ case 0x67: case 0x68: return GetCountAndDistanceOfClosestInstance(parameter, variable == 0x68 ? GB(GetRegister(0x101), 0, 8) : 0, industry); /* Get a variable from the persistent storage */ case 0x7C: return industry->psa.Get(parameter); /* Industry structure access*/ case 0x80: return industry->location.tile; case 0x81: return GB(industry->location.tile, 8, 8); /* Pointer to the town the industry is associated with */ case 0x82: return industry->town->index; case 0x83: case 0x84: case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported case 0x86: return industry->location.w; case 0x87: return industry->location.h;// xy dimensions case 0x88: case 0x89: return industry->produced_cargo[variable - 0x88]; case 0x8A: return industry->produced_cargo_waiting[0]; case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8); case 0x8C: return industry->produced_cargo_waiting[1]; case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8); case 0x8E: case 0x8F: return industry->production_rate[variable - 0x8E]; case 0x90: case 0x91: case 0x92: return industry->accepts_cargo[variable - 0x90]; case 0x93: return industry->prod_level; /* amount of cargo produced so far THIS month. */ case 0x94: return industry->this_month_production[0]; case 0x95: return GB(industry->this_month_production[0], 8, 8); case 0x96: return industry->this_month_production[1]; case 0x97: return GB(industry->this_month_production[1], 8, 8); /* amount of cargo transported so far THIS month. */ case 0x98: return industry->this_month_transported[0]; case 0x99: return GB(industry->this_month_transported[0], 8, 8); case 0x9A: return industry->this_month_transported[1]; case 0x9B: return GB(industry->this_month_transported[1], 8, 8); /* fraction of cargo transported LAST month. */ case 0x9C: case 0x9D: return industry->last_month_pct_transported[variable - 0x9C]; /* amount of cargo produced LAST month. */ case 0x9E: return industry->last_month_production[0]; case 0x9F: return GB(industry->last_month_production[0], 8, 8); case 0xA0: return industry->last_month_production[1]; case 0xA1: return GB(industry->last_month_production[1], 8, 8); /* amount of cargo transported last month. */ case 0xA2: return industry->last_month_transported[0]; case 0xA3: return GB(industry->last_month_transported[0], 8, 8); case 0xA4: return industry->last_month_transported[1]; case 0xA5: return GB(industry->last_month_transported[1], 8, 8); case 0xA6: return industry->type; case 0xA7: return industry->founder; case 0xA8: return industry->random_colour; case 0xA9: return Clamp(industry->last_prod_year - ORIGINAL_BASE_YEAR, 0, 255); case 0xAA: return industry->counter; case 0xAB: return GB(industry->counter, 8, 8); case 0xAC: return industry->was_cargo_delivered; case 0xB0: return Clamp(industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date when built since 1920 (in days) case 0xB3: return industry->construction_type; // Construction type case 0xB4: return Clamp(industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date last cargo accepted since 1920 (in days) } DEBUG(grf, 1, "Unhandled industry property 0x%X", variable); *available = false; return UINT_MAX; } static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const RealSpriteGroup *group) { /* IndustryTile do not have 'real' groups */ return NULL; } static uint32 IndustryGetRandomBits(const ResolverObject *object) { const Industry *ind = object->u.industry.ind; return ind != NULL ? ind->random: 0; } static uint32 IndustryGetTriggers(const ResolverObject *object) { const Industry *ind = object->u.industry.ind; return ind != NULL ? ind->random_triggers : 0; } static void IndustrySetTriggers(const ResolverObject *object, int triggers) { Industry *ind = object->u.industry.ind; assert(ind != NULL && ind->index != INVALID_INDUSTRY); ind->random_triggers = triggers; } static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *indus, IndustryType type) { res->GetRandomBits = IndustryGetRandomBits; res->GetTriggers = IndustryGetTriggers; res->SetTriggers = IndustrySetTriggers; res->GetVariable = IndustryGetVariable; res->ResolveReal = IndustryResolveReal; res->psa = &indus->psa; res->u.industry.tile = tile; res->u.industry.ind = indus; res->u.industry.gfx = INVALID_INDUSTRYTILE; res->u.industry.type = type; res->callback = CBID_NO_CALLBACK; res->callback_param1 = 0; res->callback_param2 = 0; res->last_value = 0; res->trigger = 0; res->reseed = 0; res->count = 0; const IndustrySpec *indspec = GetIndustrySpec(type); res->grffile = (indspec != NULL ? indspec->grf_prop.grffile : NULL); } uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile) { ResolverObject object; const SpriteGroup *group; NewIndustryResolver(&object, tile, industry, type); object.callback = callback; object.callback_param1 = param1; object.callback_param2 = param2; group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object); if (group == NULL) return CALLBACK_FAILED; return group->GetCallbackResult(); } uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) { const Industry *industry = object->u.industry.ind; TileIndex tile = object->u.industry.tile; if (object->scope == VSG_SCOPE_PARENT) { return TownGetVariable(variable, parameter, available, industry->town); } switch (variable) { case 0x80: return tile; case 0x81: return GB(tile, 8, 8); /* Pointer to the town the industry is associated with */ case 0x82: return industry->town->index; case 0x83: case 0x84: case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported /* Number of the layout */ case 0x86: return industry->selected_layout; /* Ground type */ case 0x87: return GetTerrainType(tile); /* Town zone */ case 0x88: return GetTownRadiusGroup(industry->town, tile); /* Manhattan distance of the closest town */ case 0x89: return min(DistanceManhattan(industry->town->xy, tile), 255); /* Lowest height of the tile */ case 0x8A: return GetTileZ(tile); /* Distance to the nearest water/land tile */ case 0x8B: return GetClosestWaterDistance(tile, (GetIndustrySpec(industry->type)->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0); /* Square of Euclidian distance from town */ case 0x8D: return min(DistanceSquare(industry->town->xy, tile), 65535); /* 32 random bits */ case 0x8F: return _industry_creation_random_bits; } /* None of the special ones, so try the general ones */ return IndustryGetVariable(object, variable, parameter, available); } /** * Check that the industry callback allows creation of the industry. * @param tile %Tile to build the industry. * @param type Type of industry to build. * @param layout Layout number. * @param seed Seed for the random generator. * @param initial_random_bits The random bits the industry is going to have after construction. * @param founder Industry founder * @return Succeeded or failed command. */ CommandCost CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint layout, uint32 seed, uint16 initial_random_bits, Owner founder) { const IndustrySpec *indspec = GetIndustrySpec(type); ResolverObject object; const SpriteGroup *group; Industry ind; ind.index = INVALID_INDUSTRY; ind.location.tile = tile; ind.location.w = 0; // important to mark the industry invalid ind.type = type; ind.selected_layout = layout; ind.town = ClosestTownFromTile(tile, UINT_MAX); ind.random = initial_random_bits; ind.founder = founder; NewIndustryResolver(&object, tile, &ind, type); object.GetVariable = IndustryLocationGetVariable; object.callback = CBID_INDUSTRY_LOCATION; _industry_creation_random_bits = seed; group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object); /* Unlike the "normal" cases, not having a valid result means we allow * the building of the industry, as that's how it's done in TTDP. */ if (group == NULL) return CommandCost(); uint16 result = group->GetCallbackResult(); if (result == 0x400 || result == CALLBACK_FAILED) return CommandCost(); /* Copy some parameters from the registers to the error message text ref. stack */ SwitchToErrorRefStack(); PrepareTextRefStackUsage(4); SwitchToNormalRefStack(); switch (result) { case 0x401: return_cmd_error(STR_ERROR_SITE_UNSUITABLE); case 0x402: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST); case 0x403: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT); default: return_cmd_error(GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + result)); } NOT_REACHED(); } bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type) { const IndustrySpec *indspec = GetIndustrySpec(type); if (HasBit(indspec->callback_mask, CBM_IND_AVAILABLE)) { uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE); if (res != CALLBACK_FAILED) { return (res == 0); } } return true; } static int32 DerefIndProd(int field, bool use_register) { return use_register ? (int32)GetRegister(field) : field; } /** * Get the industry production callback and apply it to the industry. * @param ind the industry this callback has to be called for * @param reason the reason it is called (0 = incoming cargo, 1 = periodic tick callback) */ void IndustryProductionCallback(Industry *ind, int reason) { const IndustrySpec *spec = GetIndustrySpec(ind->type); ResolverObject object; NewIndustryResolver(&object, ind->location.tile, ind, ind->type); if ((spec->behaviour & INDUSTRYBEH_PRODCALLBACK_RANDOM) != 0) object.callback_param1 = Random(); int multiplier = 1; if ((spec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) multiplier = ind->prod_level; object.callback_param2 = reason; for (uint loop = 0;; loop++) { /* limit the number of calls to break infinite loops. * 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */ if (loop >= 0x10000) { /* display error message */ SetDParamStr(0, spec->grf_prop.grffile->filename); SetDParam(1, spec->name); ShowErrorMessage(STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, WL_WARNING); /* abort the function early, this error isn't critical and will allow the game to continue to run */ break; } SB(object.callback_param2, 8, 16, loop); const SpriteGroup *tgroup = SpriteGroup::Resolve(spec->grf_prop.spritegroup[0], &object); if (tgroup == NULL || tgroup->type != SGT_INDUSTRY_PRODUCTION) break; const IndustryProductionSpriteGroup *group = (const IndustryProductionSpriteGroup *)tgroup; bool deref = (group->version == 1); for (uint i = 0; i < 3; i++) { ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->subtract_input[i], deref) * multiplier, 0, 0xFFFF); } for (uint i = 0; i < 2; i++) { ind->produced_cargo_waiting[i] = Clamp(ind->produced_cargo_waiting[i] + max(DerefIndProd(group->add_output[i], deref), 0) * multiplier, 0, 0xFFFF); } int32 again = DerefIndProd(group->again, deref); if (again == 0) break; SB(object.callback_param2, 24, 8, again); } SetWindowDirty(WC_INDUSTRY_VIEW, ind->index); } /** * Resolve a industry's spec and such so we can get a variable. * @param ro The resolver object to fill. * @param index The industry ID to get the data from. */ void GetIndustryResolver(ResolverObject *ro, uint index) { Industry *i = Industry::Get(index); NewIndustryResolver(ro, i->location.tile, i, i->type); } /** * Check whether an industry temporarily refuses to accept a certain cargo. * @param ind The industry to query. * @param cargo_type The cargo to get information about. * @pre cargo_type is in ind->accepts_cargo. * @return Whether the given industry refuses to accept this cargo type. */ bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type) { assert(cargo_type == ind->accepts_cargo[0] || cargo_type == ind->accepts_cargo[1] || cargo_type == ind->accepts_cargo[2]); const IndustrySpec *indspec = GetIndustrySpec(ind->type); if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) { uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO, 0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile), ind, ind->type, ind->location.tile); return res == 0; } return false; }