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authorrubidium <rubidium@openttd.org>2007-01-02 19:19:48 +0000
committerrubidium <rubidium@openttd.org>2007-01-02 19:19:48 +0000
commit66bbf336c6af7353ef0aeed58002c46543b30635 (patch)
treead4a63860df2626b22f77e7dac712e958bea54cb /src/newgrf.c
parentccc0a3f4dbf58c005b22341ac8874252924690cd (diff)
downloadopenttd-66bbf336c6af7353ef0aeed58002c46543b30635.tar.xz
(svn r7759) -Merge: makefile rewrite. This merge features:
- A proper ./configure, so everything needs to be configured only once, not for every make. - Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies. - A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC. - Proper support for OSX universal binaries. - Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files. - Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files. Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.
Diffstat (limited to 'src/newgrf.c')
-rw-r--r--src/newgrf.c3694
1 files changed, 3694 insertions, 0 deletions
diff --git a/src/newgrf.c b/src/newgrf.c
new file mode 100644
index 000000000..c2b4e464b
--- /dev/null
+++ b/src/newgrf.c
@@ -0,0 +1,3694 @@
+/* $Id$ */
+
+#include "stdafx.h"
+
+#include <stdarg.h>
+
+#include "openttd.h"
+#include "debug.h"
+#include "gfx.h"
+#include "fileio.h"
+#include "functions.h"
+#include "engine.h"
+#include "spritecache.h"
+#include "station.h"
+#include "sprite.h"
+#include "newgrf.h"
+#include "variables.h"
+#include "string.h"
+#include "table/strings.h"
+#include "bridge.h"
+#include "economy.h"
+#include "newgrf_engine.h"
+#include "vehicle.h"
+#include "newgrf_text.h"
+#include "table/sprites.h"
+#include "fontcache.h"
+#include "date.h"
+#include "currency.h"
+#include "sound.h"
+#include "newgrf_config.h"
+#include "newgrf_sound.h"
+#include "newgrf_spritegroup.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. */
+
+
+static int _skip_sprites; // XXX
+static uint _file_index; // XXX
+SpriteID _signal_base;
+SpriteID _coast_base;
+
+static GRFFile *_cur_grffile;
+GRFFile *_first_grffile;
+static SpriteID _cur_spriteid;
+static GrfLoadingStage _cur_stage;
+static uint32 _nfo_line;
+
+static GRFConfig *_cur_grfconfig;
+
+/* Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */
+static byte _misc_grf_features = 0;
+
+/* 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */
+static uint32 _ttdpatch_flags[8];
+
+/* Used by Action 0x06 to preload a pseudo sprite and modify its content */
+static byte *_preload_sprite = NULL;
+
+/* Set if any vehicle is loaded which uses 2cc (two company colours) */
+bool _have_2cc = false;
+
+
+typedef enum GrfDataType {
+ GDT_SOUND,
+} GrfDataType;
+
+static byte _grf_data_blocks;
+static GrfDataType _grf_data_type;
+
+
+typedef enum grfspec_feature {
+ GSF_TRAIN,
+ GSF_ROAD,
+ GSF_SHIP,
+ GSF_AIRCRAFT,
+ GSF_STATION,
+ GSF_CANAL,
+ GSF_BRIDGE,
+ GSF_TOWNHOUSE,
+ GSF_GLOBALVAR,
+ GSF_INDUSTRYTILES,
+ GSF_INDUSTRIES,
+ GSF_CARGOS,
+ GSF_SOUNDFX,
+} grfspec_feature;
+
+
+typedef void (*SpecialSpriteHandler)(byte *buf, int len);
+
+static const int _vehcounts[4] = {
+ /* GSF_TRAIN */ NUM_TRAIN_ENGINES,
+ /* GSF_ROAD */ NUM_ROAD_ENGINES,
+ /* GSF_SHIP */ NUM_SHIP_ENGINES,
+ /* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES
+};
+
+static const int _vehshifts[4] = {
+ /* GSF_TRAIN */ 0,
+ /* GSF_ROAD */ ROAD_ENGINES_INDEX,
+ /* GSF_SHIP */ SHIP_ENGINES_INDEX,
+ /* GSF_AIRCRAFT */ AIRCRAFT_ENGINES_INDEX,
+};
+
+enum {
+ MAX_STATIONS = 256,
+};
+
+static uint16 cargo_allowed[TOTAL_NUM_ENGINES];
+static uint16 cargo_disallowed[TOTAL_NUM_ENGINES];
+
+/* Contains the GRF ID of the owner of a vehicle if it has been reserved */
+static uint32 _grm_engines[TOTAL_NUM_ENGINES];
+
+/** DEBUG() function dedicated to newGRF debugging messages
+ * Function is essentialy 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 debugging 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, _nfo_line, buf);
+}
+
+static inline void check_length(int real, int wanted, const char *str)
+{
+ if (real >= wanted) return;
+ grfmsg(0, "%s: Invalid pseudo sprite length %d (expected %d)!", str, real, wanted);
+}
+
+static inline byte grf_load_byte(byte **buf)
+{
+ return *(*buf)++;
+}
+
+static uint16 grf_load_word(byte **buf)
+{
+ uint16 val = grf_load_byte(buf);
+ return val | (grf_load_byte(buf) << 8);
+}
+
+static uint16 grf_load_extended(byte** buf)
+{
+ uint16 val;
+ val = grf_load_byte(buf);
+ if (val == 0xFF) val = grf_load_word(buf);
+ return val;
+}
+
+static uint32 grf_load_dword(byte **buf)
+{
+ uint32 val = grf_load_word(buf);
+ return val | (grf_load_word(buf) << 16);
+}
+
+static uint32 grf_load_var(byte size, byte **buf)
+{
+ switch (size) {
+ case 1: return grf_load_byte(buf);
+ case 2: return grf_load_word(buf);
+ case 4: return grf_load_dword(buf);
+ default:
+ NOT_REACHED();
+ return 0;
+ }
+}
+
+static GRFFile *GetFileByGRFID(uint32 grfid)
+{
+ GRFFile *file;
+
+ for (file = _first_grffile; file != NULL; file = file->next) {
+ if (file->grfid == grfid) break;
+ }
+ return file;
+}
+
+static GRFFile *GetFileByFilename(const char *filename)
+{
+ GRFFile *file;
+
+ for (file = _first_grffile; file != NULL; file = file->next) {
+ if (strcmp(file->filename, filename) == 0) break;
+ }
+ return file;
+}
+
+
+typedef bool (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len);
+
+#define FOR_EACH_OBJECT for (i = 0; i < numinfo; i++)
+
+static void dewagonize(int condition, int engine)
+{
+ EngineInfo *ei = &_engine_info[engine];
+ RailVehicleInfo *rvi = &_rail_vehicle_info[engine];
+
+ if (condition != 0) {
+ ei->unk2 &= ~0x80;
+ rvi->flags &= ~2;
+ } else {
+ ei->unk2 |= 0x80;
+ rvi->flags |= 2;
+ }
+}
+
+static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
+{
+ EngineInfo *ei = &_engine_info[engine];
+ RailVehicleInfo *rvi = &_rail_vehicle_info[engine];
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ switch (prop) {
+ case 0x05: /* Track type */
+ FOR_EACH_OBJECT {
+ uint8 tracktype = grf_load_byte(&buf);
+
+ switch (tracktype) {
+ case 0: ei[i].railtype = rvi[i].engclass == 2 ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL; break;
+ case 1: ei[i].railtype = RAILTYPE_MONO; break;
+ case 2: ei[i].railtype = RAILTYPE_MAGLEV; break;
+ default:
+ grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype);
+ break;
+ }
+ }
+ break;
+
+ case 0x08: /* AI passenger service */
+ /* TODO */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ case 0x09: /* Speed (1 unit is 1 kmh) */
+ FOR_EACH_OBJECT {
+ uint16 speed = grf_load_word(&buf);
+ if (speed == 0xFFFF) speed = 0;
+
+ rvi[i].max_speed = speed;
+ }
+ break;
+
+ case 0x0B: /* Power */
+ FOR_EACH_OBJECT {
+ uint16 power = grf_load_word(&buf);
+
+ if (rvi[i].flags & RVI_MULTIHEAD) power /= 2;
+
+ rvi[i].power = power;
+ dewagonize(power, engine + i);
+ }
+ break;
+
+ case 0x0D: /* Running cost factor */
+ FOR_EACH_OBJECT {
+ uint8 runcostfact = grf_load_byte(&buf);
+
+ if (rvi[i].flags & RVI_MULTIHEAD) runcostfact /= 2;
+
+ rvi[i].running_cost_base = runcostfact;
+ }
+ break;
+
+ case 0x0E: /* Running cost base */
+ FOR_EACH_OBJECT {
+ uint32 base = grf_load_dword(&buf);
+
+ switch (base) {
+ case 0x4C30: rvi[i].running_cost_class = 0; break;
+ case 0x4C36: rvi[i].running_cost_class = 1; break;
+ case 0x4C3C: rvi[i].running_cost_class = 2; break;
+ case 0: break; /* Used by wagons */
+ default:
+ grfmsg(1, "RailVehicleChangeInfo: Unsupported running cost base 0x%04X, ignoring", base);
+ break;
+ }
+ }
+ break;
+
+ case 0x12: /* Sprite ID */
+ FOR_EACH_OBJECT {
+ uint8 spriteid = grf_load_byte(&buf);
+
+ /* 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[i].image_index = spriteid;
+ }
+ break;
+
+ case 0x13: /* Dual-headed */
+ FOR_EACH_OBJECT {
+ uint8 dual = grf_load_byte(&buf);
+
+ if (dual != 0) {
+ if (!(rvi[i].flags & RVI_MULTIHEAD)) {
+ // adjust power and running cost if needed
+ rvi[i].power /= 2;
+ rvi[i].running_cost_base /= 2;
+ }
+ rvi[i].flags |= RVI_MULTIHEAD;
+ } else {
+ if (rvi[i].flags & RVI_MULTIHEAD) {
+ // adjust power and running cost if needed
+ rvi[i].power *= 2;
+ rvi[i].running_cost_base *= 2;
+ }
+ rvi[i].flags &= ~RVI_MULTIHEAD;
+ }
+ }
+ break;
+
+ case 0x14: /* Cargo capacity */
+ FOR_EACH_OBJECT rvi[i].capacity = grf_load_byte(&buf);
+ break;
+
+ case 0x15: /* Cargo type */
+ FOR_EACH_OBJECT {
+ uint8 ctype = grf_load_byte(&buf);
+
+ if (ctype < NUM_CARGO) {
+ rvi[i].cargo_type = ctype;
+ } else {
+ grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, ignoring", ctype);
+ }
+ }
+ break;
+
+ case 0x16: /* Weight */
+ FOR_EACH_OBJECT SB(rvi[i].weight, 0, 8, grf_load_byte(&buf));
+ break;
+
+ case 0x17: /* Cost factor */
+ FOR_EACH_OBJECT rvi[i].base_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x18: /* AI rank */
+ FOR_EACH_OBJECT rvi[i].ai_rank = grf_load_byte(&buf);
+ 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
+ */
+ FOR_EACH_OBJECT {
+ uint8 traction = grf_load_byte(&buf);
+ int engclass;
+
+ if (traction <= 0x07) {
+ engclass = 0;
+ } else if (traction <= 0x27) {
+ engclass = 1;
+ } else if (traction <= 0x31) {
+ engclass = 2;
+ } else if (traction <= 0x41) {
+ engclass = 2;
+ } else {
+ break;
+ }
+ if (ei[i].railtype == RAILTYPE_RAIL && engclass == 2) ei[i].railtype = RAILTYPE_ELECTRIC;
+ if (ei[i].railtype == RAILTYPE_ELECTRIC && engclass != 2) ei[i].railtype = RAILTYPE_RAIL;
+
+ rvi[i].engclass = engclass;
+ }
+ break;
+
+ case 0x1A: /* Alter purchase list sort order */
+ FOR_EACH_OBJECT {
+ EngineID pos = grf_load_byte(&buf);
+
+ if (pos < NUM_TRAIN_ENGINES) {
+ AlterRailVehListOrder(engine + i, pos);
+ } else {
+ grfmsg(2, "RailVehicleChangeInfo: Invalid train engine ID %d, ignoring", pos);
+ }
+ }
+ break;
+
+ case 0x1B: /* Powered wagons power bonus */
+ FOR_EACH_OBJECT rvi[i].pow_wag_power = grf_load_word(&buf);
+ break;
+
+ case 0x1C: /* Refit cost */
+ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x1D: /* Refit cargo */
+ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf);
+ break;
+
+ case 0x1E: /* Callback */
+ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf);
+ break;
+
+ case 0x1F: /* Tractive effort coefficient */
+ FOR_EACH_OBJECT rvi[i].tractive_effort = grf_load_byte(&buf);
+ break;
+
+ case 0x21: /* Shorter vehicle */
+ FOR_EACH_OBJECT rvi[i].shorten_factor = grf_load_byte(&buf);
+ break;
+
+ case 0x22: /* Visual effect */
+ // see note in engine.h about rvi->visual_effect
+ FOR_EACH_OBJECT rvi[i].visual_effect = grf_load_byte(&buf);
+ break;
+
+ case 0x23: /* Powered wagons weight bonus */
+ FOR_EACH_OBJECT rvi[i].pow_wag_weight = grf_load_byte(&buf);
+ break;
+
+ case 0x24: /* High byte of vehicle weight */
+ FOR_EACH_OBJECT {
+ byte weight = grf_load_byte(&buf);
+
+ if (weight > 4) {
+ grfmsg(2, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring", weight << 8);
+ } else {
+ SB(rvi[i].weight, 8, 8, weight);
+ }
+ }
+ break;
+
+ case 0x25: /* User-defined bit mask to set when checking veh. var. 42 */
+ FOR_EACH_OBJECT rvi[i].user_def_data = grf_load_byte(&buf);
+ break;
+
+ case 0x27: /* Miscellaneous flags */
+ FOR_EACH_OBJECT {
+ ei[i].misc_flags = grf_load_byte(&buf);
+ if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true;
+ }
+ break;
+
+ case 0x28: /* Cargo classes allowed */
+ FOR_EACH_OBJECT cargo_allowed[engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x29: /* Cargo classes disallowed */
+ FOR_EACH_OBJECT cargo_disallowed[engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x2A: /* Long format introduction date (days since year 0) */
+ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf);
+ break;
+
+ /* TODO */
+ /* Fall-through for unimplemented one byte long properties. */
+ case 0x20: /* Air drag */
+ case 0x26: /* Retire vehicle early */
+ /* TODO */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ default:
+ ret = true;
+ break;
+ }
+ *bufp = buf;
+ return ret;
+}
+
+static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
+{
+ EngineInfo *ei = &_engine_info[ROAD_ENGINES_INDEX + engine];
+ RoadVehicleInfo *rvi = &_road_vehicle_info[engine];
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ switch (prop) {
+ case 0x08: /* Speed (1 unit is 0.5 kmh) */
+ FOR_EACH_OBJECT rvi[i].max_speed = grf_load_byte(&buf);
+ break;
+
+ case 0x09: /* Running cost factor */
+ FOR_EACH_OBJECT rvi[i].running_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x0A: /* Running cost base */
+ /* TODO: I have no idea. --pasky */
+ FOR_EACH_OBJECT grf_load_dword(&buf);
+ ret = true;
+ break;
+
+ case 0x0E: /* Sprite ID */
+ FOR_EACH_OBJECT {
+ uint8 spriteid = grf_load_byte(&buf);
+
+ // cars have different custom id in the GRF file
+ if (spriteid == 0xFF) spriteid = 0xFD;
+
+ if (spriteid < 0xFD) spriteid >>= 1;
+
+ rvi[i].image_index = spriteid;
+ }
+ break;
+
+ case 0x0F: /* Cargo capacity */
+ FOR_EACH_OBJECT rvi[i].capacity = grf_load_byte(&buf);
+ break;
+
+ case 0x10: /* Cargo type */
+ FOR_EACH_OBJECT {
+ uint8 cargo = grf_load_byte(&buf);
+
+ if (cargo < NUM_CARGO) {
+ rvi[i].cargo_type = cargo;
+ } else {
+ grfmsg(2, "RoadVehicleChangeInfo: Invalid cargo type %d, ignoring", cargo);
+ }
+ }
+ break;
+
+ case 0x11: /* Cost factor */
+ FOR_EACH_OBJECT rvi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost?
+ break;
+
+ case 0x12: /* SFX */
+ FOR_EACH_OBJECT rvi[i].sfx = grf_load_byte(&buf);
+ break;
+
+ case 0x13: /* Power in 10hp */
+ case 0x14: /* Weight in 1/4 tons */
+ case 0x15: /* Speed in mph*0.8 */
+ /* TODO: Support for road vehicles realistic power
+ * computations (called rvpower in TTDPatch) is just
+ * missing in OTTD yet. --pasky */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ case 0x16: /* Cargos available for refitting */
+ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf);
+ break;
+
+ case 0x17: /* Callback mask */
+ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf);
+ break;
+
+ case 0x1A: /* Refit cost */
+ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x1C: /* Miscellaneous flags */
+ FOR_EACH_OBJECT {
+ ei[i].misc_flags = grf_load_byte(&buf);
+ if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true;
+ }
+ break;
+
+ case 0x1D: /* Cargo classes allowed */
+ FOR_EACH_OBJECT cargo_allowed[ROAD_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x1E: /* Cargo classes disallowed */
+ FOR_EACH_OBJECT cargo_disallowed[ROAD_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x1F: /* Long format introduction date (days since year 0) */
+ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf);
+ break;
+
+ case 0x18: /* Tractive effort */
+ case 0x19: /* Air drag */
+ case 0x1B: /* Retire vehicle early */
+ /* TODO */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ default:
+ ret = true;
+ break;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
+{
+ EngineInfo *ei = &_engine_info[SHIP_ENGINES_INDEX + engine];
+ ShipVehicleInfo *svi = &_ship_vehicle_info[engine];
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ //printf("e %x prop %x?\n", engine, prop);
+ switch (prop) {
+ case 0x08: /* Sprite ID */
+ FOR_EACH_OBJECT {
+ uint8 spriteid = grf_load_byte(&buf);
+
+ // ships have different custom id in the GRF file
+ if (spriteid == 0xFF) spriteid = 0xFD;
+
+ if (spriteid < 0xFD) spriteid >>= 1;
+
+ svi[i].image_index = spriteid;
+ }
+ break;
+
+ case 0x09: /* Refittable */
+ FOR_EACH_OBJECT svi[i].refittable = grf_load_byte(&buf);
+ break;
+
+ case 0x0A: /* Cost factor */
+ FOR_EACH_OBJECT svi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost?
+ break;
+
+ case 0x0B: /* Speed (1 unit is 0.5 kmh) */
+ FOR_EACH_OBJECT svi[i].max_speed = grf_load_byte(&buf);
+ break;
+
+ case 0x0C: /* Cargo type */
+ FOR_EACH_OBJECT {
+ uint8 cargo = grf_load_byte(&buf);
+
+ // XXX: Need to consult this with patchman yet.
+#if 0
+ // Documentation claims this is already the
+ // per-landscape cargo type id, but newships.grf
+ // assume otherwise.
+ cargo = local_cargo_id_ctype[cargo];
+#endif
+ if (cargo < NUM_CARGO) {
+ svi[i].cargo_type = cargo;
+ } else {
+ grfmsg(2, "ShipVehicleChangeInfo: Invalid cargo type %d, ignoring", cargo);
+ }
+ }
+ break;
+
+ case 0x0D: /* Cargo capacity */
+ FOR_EACH_OBJECT svi[i].capacity = grf_load_word(&buf);
+ break;
+
+ case 0x0F: /* Running cost factor */
+ FOR_EACH_OBJECT svi[i].running_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x10: /* SFX */
+ FOR_EACH_OBJECT svi[i].sfx = grf_load_byte(&buf);
+ break;
+
+ case 0x11: /* Cargos available for refitting */
+ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf);
+ break;
+
+ case 0x12: /* Callback mask */
+ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf);
+ break;
+
+ case 0x13: /* Refit cost */
+ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x17: /* Miscellaneous flags */
+ FOR_EACH_OBJECT {
+ ei[i].misc_flags = grf_load_byte(&buf);
+ if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true;
+ }
+ break;
+
+ case 0x18: /* Cargo classes allowed */
+ FOR_EACH_OBJECT cargo_allowed[SHIP_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x19: /* Cargo classes disallowed */
+ FOR_EACH_OBJECT cargo_disallowed[SHIP_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x1A: /* Long format introduction date (days since year 0) */
+ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf);
+ break;
+
+ case 0x14: /* Ocean speed fraction */
+ case 0x15: /* Canal speed fraction */
+ case 0x16: /* Retire vehicle early */
+ /* TODO */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ default:
+ ret = true;
+ break;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
+{
+ EngineInfo *ei = &_engine_info[AIRCRAFT_ENGINES_INDEX + engine];
+ AircraftVehicleInfo *avi = &_aircraft_vehicle_info[engine];
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ //printf("e %x prop %x?\n", engine, prop);
+ switch (prop) {
+ case 0x08: /* Sprite ID */
+ FOR_EACH_OBJECT {
+ uint8 spriteid = grf_load_byte(&buf);
+
+ // aircraft have different custom id in the GRF file
+ if (spriteid == 0xFF) spriteid = 0xFD;
+
+ if (spriteid < 0xFD) spriteid >>= 1;
+
+ avi[i].image_index = spriteid;
+ }
+ break;
+
+ case 0x09: /* Helicopter */
+ FOR_EACH_OBJECT {
+ if (grf_load_byte(&buf) == 0) {
+ avi[i].subtype = 0;
+ } else {
+ SB(avi[i].subtype, 0, 1, 1);
+ }
+ }
+ break;
+
+ case 0x0A: /* Large */
+ FOR_EACH_OBJECT SB(avi[i].subtype, 1, 1, (grf_load_byte(&buf) != 0 ? 1 : 0));
+ break;
+
+ case 0x0B: /* Cost factor */
+ FOR_EACH_OBJECT avi[i].base_cost = grf_load_byte(&buf); // ?? is it base_cost?
+ break;
+
+ case 0x0C: /* Speed (1 unit is 8 mph) */
+ FOR_EACH_OBJECT avi[i].max_speed = grf_load_byte(&buf);
+ break;
+
+ case 0x0D: /* Acceleration */
+ FOR_EACH_OBJECT avi[i].acceleration = grf_load_byte(&buf);
+ break;
+
+ case 0x0E: /* Running cost factor */
+ FOR_EACH_OBJECT avi[i].running_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x0F: /* Passenger capacity */
+ FOR_EACH_OBJECT avi[i].passenger_capacity = grf_load_word(&buf);
+ break;
+
+ case 0x11: /* Mail capacity */
+ FOR_EACH_OBJECT avi[i].mail_capacity = grf_load_byte(&buf);
+ break;
+
+ case 0x12: /* SFX */
+ FOR_EACH_OBJECT avi[i].sfx = grf_load_byte(&buf);
+ break;
+
+ case 0x13: /* Cargos available for refitting */
+ FOR_EACH_OBJECT ei[i].refit_mask = grf_load_dword(&buf);
+ break;
+
+ case 0x14: /* Callback mask */
+ FOR_EACH_OBJECT ei[i].callbackmask = grf_load_byte(&buf);
+ break;
+
+ case 0x15: /* Refit cost */
+ FOR_EACH_OBJECT ei[i].refit_cost = grf_load_byte(&buf);
+ break;
+
+ case 0x17: /* Miscellaneous flags */
+ FOR_EACH_OBJECT {
+ ei[i].misc_flags = grf_load_byte(&buf);
+ if (HASBIT(ei[i].misc_flags, EF_USES_2CC)) _have_2cc = true;
+ }
+ break;
+
+ case 0x18: /* Cargo classes allowed */
+ FOR_EACH_OBJECT cargo_allowed[AIRCRAFT_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x19: /* Cargo classes disallowed */
+ FOR_EACH_OBJECT cargo_disallowed[AIRCRAFT_ENGINES_INDEX + engine + i] = grf_load_word(&buf);
+ break;
+
+ case 0x1A: /* Long format introduction date (days since year 0) */
+ FOR_EACH_OBJECT ei[i].base_intro = grf_load_dword(&buf);
+ break;
+
+ case 0x16: /* Retire vehicle early */
+ /* TODO */
+ FOR_EACH_OBJECT grf_load_byte(&buf);
+ ret = true;
+ break;
+
+ default:
+ ret = true;
+ break;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int len)
+{
+ StationSpec **statspec;
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ if (stid + numinfo > MAX_STATIONS) {
+ grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS);
+ return false;
+ }
+
+ /* Allocate station specs if necessary */
+ if (_cur_grffile->stations == NULL) _cur_grffile->stations = calloc(MAX_STATIONS, sizeof(*_cur_grffile->stations));
+
+ statspec = &_cur_grffile->stations[stid];
+
+ if (prop != 0x08) {
+ /* Check that all stations we are modifying are defined. */
+ FOR_EACH_OBJECT {
+ if (statspec[i] == NULL) {
+ grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i);
+ return false;
+ }
+ }
+ }
+
+ switch (prop) {
+ case 0x08: /* Class ID */
+ FOR_EACH_OBJECT {
+ uint32 classid;
+
+ /* Property 0x08 is special; it is where the station is allocated */
+ if (statspec[i] == NULL) statspec[i] = calloc(1, sizeof(*statspec[i]));
+
+ /* Swap classid because we read it in BE meaning WAYP or DFLT */
+ classid = grf_load_dword(&buf);
+ statspec[i]->sclass = AllocateStationClass(BSWAP32(classid));
+ }
+ break;
+
+ case 0x09: /* Define sprite layout */
+ FOR_EACH_OBJECT {
+ StationSpec *statspec = _cur_grffile->stations[stid + i];
+ uint t;
+
+ statspec->tiles = grf_load_extended(&buf);
+ statspec->renderdata = calloc(statspec->tiles, sizeof(*statspec->renderdata));
+ statspec->copied_renderdata = false;
+
+ for (t = 0; t < statspec->tiles; t++) {
+ DrawTileSprites *dts = &statspec->renderdata[t];
+ uint seq_count = 0;
+
+ dts->seq = NULL;
+ dts->ground_sprite = grf_load_dword(&buf);
+ if (dts->ground_sprite == 0) continue;
+
+ while (buf < *bufp + len) {
+ DrawTileSeqStruct *dtss;
+
+ // no relative bounding box support
+ dts->seq = realloc((void*)dts->seq, ++seq_count * sizeof(DrawTileSeqStruct));
+ dtss = (DrawTileSeqStruct*) &dts->seq[seq_count - 1];
+
+ dtss->delta_x = grf_load_byte(&buf);
+ if ((byte) dtss->delta_x == 0x80) break;
+ dtss->delta_y = grf_load_byte(&buf);
+ dtss->delta_z = grf_load_byte(&buf);
+ dtss->size_x = grf_load_byte(&buf);
+ dtss->size_y = grf_load_byte(&buf);
+ dtss->size_z = grf_load_byte(&buf);
+ dtss->image = grf_load_dword(&buf);
+
+ /* Remap flags as ours collide */
+ if (HASBIT(dtss->image, 31)) {
+ CLRBIT(dtss->image, 31);
+ SETBIT(dtss->image, 30);
+ }
+ if (HASBIT(dtss->image, 14)) {
+ CLRBIT(dtss->image, 14);
+ SETBIT(dtss->image, 31);
+ }
+ }
+ }
+ }
+ break;
+
+ case 0x0A: /* Copy sprite layout */
+ FOR_EACH_OBJECT {
+ StationSpec *statspec = _cur_grffile->stations[stid + i];
+ byte srcid = grf_load_byte(&buf);
+ const StationSpec *srcstatspec = _cur_grffile->stations[srcid];
+
+ statspec->tiles = srcstatspec->tiles;
+ statspec->renderdata = srcstatspec->renderdata;
+ statspec->copied_renderdata = true;
+ }
+ break;
+
+ case 0x0B: /* Callback mask */
+ FOR_EACH_OBJECT statspec[i]->callbackmask = grf_load_byte(&buf);
+ break;
+
+ case 0x0C: /* Disallowed number of platforms */
+ FOR_EACH_OBJECT statspec[i]->disallowed_platforms = grf_load_byte(&buf);
+ break;
+
+ case 0x0D: /* Disallowed platform lengths */
+ FOR_EACH_OBJECT statspec[i]->disallowed_lengths = grf_load_byte(&buf);
+ break;
+
+ case 0x0E: /* Define custom layout */
+ FOR_EACH_OBJECT {
+ StationSpec *statspec = _cur_grffile->stations[stid + i];
+
+ statspec->copied_layouts = false;
+
+ while (buf < *bufp + len) {
+ byte length = grf_load_byte(&buf);
+ byte number = grf_load_byte(&buf);
+ StationLayout layout;
+ uint l, p;
+
+ if (length == 0 || number == 0) break;
+
+ //debug("l %d > %d ?", length, stat->lengths);
+ if (length > statspec->lengths) {
+ statspec->platforms = realloc(statspec->platforms, length);
+ memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths);
+
+ statspec->layouts = realloc(statspec->layouts, length * sizeof(*statspec->layouts));
+ memset(statspec->layouts + statspec->lengths, 0,
+ (length - statspec->lengths) * sizeof(*statspec->layouts));
+
+ statspec->lengths = length;
+ }
+ l = length - 1; // index is zero-based
+
+ //debug("p %d > %d ?", number, stat->platforms[l]);
+ if (number > statspec->platforms[l]) {
+ statspec->layouts[l] = realloc(statspec->layouts[l],
+ number * sizeof(**statspec->layouts));
+ // 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 = malloc(length * number);
+ for (l = 0; l < length; l++) {
+ for (p = 0; p < number; p++) {
+ layout[l * number + p] = grf_load_byte(&buf);
+ }
+ }
+
+ l--;
+ p--;
+ free(statspec->layouts[l][p]);
+ statspec->layouts[l][p] = layout;
+ }
+ }
+ break;
+
+ case 0x0F: /* Copy custom layout */
+ FOR_EACH_OBJECT {
+ StationSpec *statspec = _cur_grffile->stations[stid + i];
+ byte srcid = grf_load_byte(&buf);
+ const StationSpec *srcstatspec = _cur_grffile->stations[srcid];
+
+ statspec->lengths = srcstatspec->lengths;
+ statspec->platforms = srcstatspec->platforms;
+ statspec->layouts = srcstatspec->layouts;
+ statspec->copied_layouts = true;
+ }
+ break;
+
+ case 0x10: /* Little/lots cargo threshold */
+ FOR_EACH_OBJECT statspec[i]->cargo_threshold = grf_load_word(&buf);
+ break;
+
+ case 0x11: /* Pylon placement */
+ FOR_EACH_OBJECT statspec[i]->pylons = grf_load_byte(&buf);
+ break;
+
+ case 0x12: /* Cargo types for random triggers */
+ FOR_EACH_OBJECT statspec[i]->cargo_triggers = grf_load_dword(&buf);
+ break;
+
+ case 0x13: /* General flags */
+ FOR_EACH_OBJECT statspec[i]->flags = grf_load_byte(&buf);
+ break;
+
+ case 0x14: /* Overhead wire placement */
+ FOR_EACH_OBJECT statspec[i]->wires = grf_load_byte(&buf);
+ break;
+
+ case 0x15: /* Blocked tiles */
+ FOR_EACH_OBJECT statspec[i]->blocked = grf_load_byte(&buf);
+ break;
+
+ default:
+ ret = true;
+ break;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int len)
+{
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ switch (prop) {
+ case 0x08: /* Year of availability */
+ FOR_EACH_OBJECT _bridge[brid + i].avail_year = ORIGINAL_BASE_YEAR + grf_load_byte(&buf);
+ break;
+
+ case 0x09: /* Minimum length */
+ FOR_EACH_OBJECT _bridge[brid + i].min_length = grf_load_byte(&buf);
+ break;
+
+ case 0x0A: /* Maximum length */
+ FOR_EACH_OBJECT _bridge[brid + i].max_length = grf_load_byte(&buf);
+ break;
+
+ case 0x0B: /* Cost factor */
+ FOR_EACH_OBJECT _bridge[brid + i].price = grf_load_byte(&buf);
+ break;
+
+ case 0x0C: /* Maximum speed */
+ FOR_EACH_OBJECT _bridge[brid + i].speed = grf_load_word(&buf);
+ break;
+
+ case 0x0D: /* Bridge sprite tables */
+ FOR_EACH_OBJECT {
+ Bridge *bridge = &_bridge[brid + i];
+ byte tableid = grf_load_byte(&buf);
+ byte numtables = grf_load_byte(&buf);
+
+ if (bridge->sprite_table == NULL) {
+ /* Allocate memory for sprite table pointers and zero out */
+ bridge->sprite_table = calloc(7, sizeof(*bridge->sprite_table));
+ }
+
+ for (; numtables-- != 0; tableid++) {
+ byte sprite;
+
+ if (tableid >= 7) { // skip invalid data
+ grfmsg(1, "BridgeChangeInfo: Table %d >= 7, skipping", tableid);
+ for (sprite = 0; sprite < 32; sprite++) grf_load_dword(&buf);
+ continue;
+ }
+
+ if (bridge->sprite_table[tableid] == NULL) {
+ bridge->sprite_table[tableid] = malloc(32 * sizeof(**bridge->sprite_table));
+ }
+
+ for (sprite = 0; sprite < 32; sprite++)
+ bridge->sprite_table[tableid][sprite] = grf_load_dword(&buf);
+ }
+ }
+ break;
+
+ case 0x0E: /* Flags; bit 0 - disable far pillars */
+ FOR_EACH_OBJECT _bridge[brid + i].flags = grf_load_byte(&buf);
+ break;
+
+ case 0x0F: /* Long format year of availability (year since year 0) */
+ FOR_EACH_OBJECT _bridge[brid + i].avail_year = clamp(grf_load_dword(&buf), MIN_YEAR, MAX_YEAR);
+ break;
+
+ default:
+ ret = true;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, int len)
+{
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ switch (prop) {
+ case 0x08: /* Cost base factor */
+ FOR_EACH_OBJECT {
+ byte factor = grf_load_byte(&buf);
+ uint price = gvid + i;
+
+ if (price < NUM_PRICES) {
+ SetPriceBaseMultiplier(price, factor);
+ } else {
+ grfmsg(1, "GlobalVarChangeInfo: Price %d out of range, ignoring", price);
+ }
+ }
+ break;
+
+ case 0x0A: // Currency display names
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ StringID newone = GetGRFStringID(_cur_grffile->grfid, grf_load_word(&buf));
+
+ if ((newone != STR_UNDEFINED) && (curidx < NUM_CURRENCY)) {
+ _currency_specs[curidx].name = newone;
+ }
+ }
+ break;
+
+ case 0x0B: // Currency multipliers
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ uint32 rate = grf_load_dword(&buf);
+
+ 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
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ uint16 options = grf_load_word(&buf);
+
+ if (curidx < NUM_CURRENCY) {
+ _currency_specs[curidx].separator = GB(options, 0, 8);
+ /* 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
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ uint32 tempfix = grf_load_dword(&buf);
+
+ 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
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ uint32 tempfix = grf_load_dword(&buf);
+
+ 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
+ FOR_EACH_OBJECT {
+ uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
+ Year year_euro = grf_load_word(&buf);
+
+ 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 0x09: // Cargo translation table
+ case 0x10: // 12 * 32 * B Snow line height table
+ default:
+ ret = true;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, int len)
+{
+ byte *buf = *bufp;
+ int i;
+ bool ret = false;
+
+ if (_cur_grffile->sound_offset == 0) {
+ grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping");
+ return false;
+ }
+
+ switch (prop) {
+ case 0x08: /* Relative volume */
+ FOR_EACH_OBJECT {
+ uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds();
+
+ if (sound >= GetNumSounds()) {
+ grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds());
+ } else {
+ GetSound(sound)->volume = grf_load_byte(&buf);
+ }
+ }
+ break;
+
+ case 0x09: /* Priority */
+ FOR_EACH_OBJECT {
+ uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds();
+
+ if (sound >= GetNumSounds()) {
+ grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds());
+ } else {
+ GetSound(sound)->priority = grf_load_byte(&buf);
+ }
+ }
+ break;
+
+ case 0x0A: /* Override old sound */
+ FOR_EACH_OBJECT {
+ uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds();
+ uint orig_sound = grf_load_byte(&buf);
+
+ if (sound >= GetNumSounds() || orig_sound >= GetNumSounds()) {
+ grfmsg(1, "SoundEffectChangeInfo: Sound %d or %d not defined (max %d)", sound, orig_sound, GetNumSounds());
+ } else {
+ FileEntry *newfe = GetSound(sound);
+ FileEntry *oldfe = GetSound(orig_sound);
+
+ /* Literally copy the data of the new sound over the original */
+ *oldfe = *newfe;
+ }
+ }
+ break;
+
+ default:
+ ret = true;
+ }
+
+ *bufp = buf;
+ return ret;
+}
+
+/* Action 0x00 */
+static void FeatureChangeInfo(byte *buf, int len)
+{
+ byte *bufend = buf + len;
+ int i;
+
+ /* <00> <feature> <num-props> <num-info> <id> (<property <new-info>)...
+ *
+ * B feature 0, 1, 2 or 3 for trains, road vehicles, ships or planes
+ * 4 for defining new train station sets
+ * B num-props how many properties to change per vehicle/station
+ * B num-info how many vehicles/stations to change
+ * B 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) */
+ /* TODO: Bridges, town houses. */
+
+ static const VCI_Handler handler[] = {
+ /* GSF_TRAIN */ RailVehicleChangeInfo,
+ /* GSF_ROAD */ RoadVehicleChangeInfo,
+ /* GSF_SHIP */ ShipVehicleChangeInfo,
+ /* GSF_AIRCRAFT */ AircraftVehicleChangeInfo,
+ /* GSF_STATION */ StationChangeInfo,
+ /* GSF_CANAL */ NULL,
+ /* GSF_BRIDGE */ BridgeChangeInfo,
+ /* GSF_TOWNHOUSE */ NULL,
+ /* GSF_GLOBALVAR */ GlobalVarChangeInfo,
+ /* GSF_INDUSTRYTILES */NULL,
+ /* GSF_INDUSTRIES */ NULL,
+ /* GSF_CARGOS */ NULL,
+ /* GSF_SOUNDFX */ SoundEffectChangeInfo,
+ };
+
+ uint8 feature;
+ uint8 numprops;
+ uint8 numinfo;
+ byte engine;
+ EngineInfo *ei = NULL;
+
+ if (len == 1) {
+ grfmsg(8, "Silently ignoring one-byte special sprite 0x00");
+ return;
+ }
+
+ check_length(len, 6, "FeatureChangeInfo");
+ buf++;
+ feature = grf_load_byte(&buf);
+ numprops = grf_load_byte(&buf);
+ numinfo = grf_load_byte(&buf);
+ engine = grf_load_byte(&buf);
+
+ grfmsg(6, "FeatureChangeInfo: feature %d, %d properties, to apply to %d+%d",
+ feature, numprops, engine, numinfo);
+
+ if (feature >= lengthof(handler) || handler[feature] == NULL) {
+ grfmsg(1, "FeatureChangeInfo: Unsupported feature %d, skipping", feature);
+ return;
+ }
+
+ if (feature <= GSF_AIRCRAFT) {
+ if (engine + numinfo > _vehcounts[feature]) {
+ grfmsg(0, "FeatureChangeInfo: Last engine ID %d out of bounds (max %d), skipping", engine + numinfo, _vehcounts[feature]);
+ return;
+ }
+ ei = &_engine_info[engine + _vehshifts[feature]];
+ }
+
+ while (numprops-- && buf < bufend) {
+ uint8 prop = grf_load_byte(&buf);
+ bool ignoring = false;
+
+ switch (feature) {
+ case GSF_TRAIN:
+ case GSF_ROAD:
+ case GSF_SHIP:
+ case GSF_AIRCRAFT:
+ /* Common properties for vehicles */
+ switch (prop) {
+ case 0x00: /* Introduction date */
+ FOR_EACH_OBJECT ei[i].base_intro = grf_load_word(&buf) + DAYS_TILL_ORIGINAL_BASE_YEAR;
+ break;
+
+ case 0x02: /* Decay speed */
+ FOR_EACH_OBJECT SB(ei[i].unk2, 0, 7, grf_load_byte(&buf) & 0x7F);
+ break;
+
+ case 0x03: /* Vehicle life */
+ FOR_EACH_OBJECT ei[i].lifelength = grf_load_byte(&buf);
+ break;
+
+ case 0x04: /* Model life */
+ FOR_EACH_OBJECT ei[i].base_life = grf_load_byte(&buf);
+ break;
+
+ case 0x06: /* Climates available */
+ FOR_EACH_OBJECT ei[i].climates = grf_load_byte(&buf);
+ break;
+
+ case 0x07: /* Loading speed */
+ /* Hyronymus explained me what does
+ * this mean and insists on having a
+ * credit ;-). --pasky */
+ FOR_EACH_OBJECT ei[i].load_amount = grf_load_byte(&buf);
+ break;
+
+ default:
+ if (handler[feature](engine, numinfo, prop, &buf, bufend - buf))
+ ignoring = true;
+ break;
+ }
+ break;
+
+ default:
+ if (handler[feature](engine, numinfo, prop, &buf, bufend - buf))
+ ignoring = true;
+ break;
+ }
+
+ if (ignoring) grfmsg(2, "FeatureChangeInfo: Ignoring property 0x%02X (not implemented)", prop);
+ }
+}
+
+#undef FOR_EACH_OBJECT
+
+/**
+ * Creates a spritegroup representing a callback result
+ * @param value The value that was used to represent this callback result
+ * @return A spritegroup representing that callback result
+ */
+static const SpriteGroup* NewCallBackResultSpriteGroup(uint16 value)
+{
+ SpriteGroup *group = AllocateSpriteGroup();
+
+ group->type = SGT_CALLBACK;
+
+ // Old style callback results have the highest byte 0xFF so signify it is a callback result
+ // New style ones only have the highest bit set (allows 15-bit results, instead of just 8)
+ if ((value >> 8) == 0xFF) {
+ value &= ~0xFF00;
+ } else {
+ value &= ~0x8000;
+ }
+
+ group->g.callback.result = value;
+
+ return group;
+}
+
+/**
+ * Creates a spritegroup representing a sprite number result.
+ * @param value The sprite number.
+ * @param sprites The number of sprites per set.
+ * @return A spritegroup representing the sprite number result.
+ */
+static const SpriteGroup* NewResultSpriteGroup(SpriteID sprite, byte num_sprites)
+{
+ SpriteGroup *group = AllocateSpriteGroup();
+ group->type = SGT_RESULT;
+ group->g.result.sprite = sprite;
+ group->g.result.num_sprites = num_sprites;
+ return group;
+}
+
+/* Action 0x01 */
+static void NewSpriteSet(byte *buf, int len)
+{
+ /* <01> <feature> <num-sets> <num-ent>
+ *
+ * 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.
+ * For stations, must be 12 (hex) for the eighteen
+ * different sprites that make up a station */
+ /* TODO: No stations support. */
+ uint8 feature;
+ uint num_sets;
+ uint num_ents;
+ uint i;
+
+ check_length(len, 4, "NewSpriteSet");
+ buf++;
+ feature = grf_load_byte(&buf);
+ num_sets = grf_load_byte(&buf);
+ num_ents = grf_load_extended(&buf);
+
+ _cur_grffile->spriteset_start = _cur_spriteid;
+ _cur_grffile->spriteset_feature = feature;
+ _cur_grffile->spriteset_numsets = num_sets;
+ _cur_grffile->spriteset_numents = 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 (i = 0; i < num_sets * num_ents; i++) {
+ LoadNextSprite(_cur_spriteid++, _file_index);
+ _nfo_line++;
+ }
+}
+
+/* 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)) return NewCallBackResultSpriteGroup(groupid);
+
+ if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
+ grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Groupid 0x%04X does not exist, leaving empty", setid, type, groupid);
+ return NULL;
+ }
+
+ return _cur_grffile->spritegroups[groupid];
+}
+
+/* Helper function to either create a callback or a result sprite group. */
+static const SpriteGroup* CreateGroupFromGroupID(byte feature, byte setid, byte type, uint16 spriteid, uint16 num_sprites)
+{
+ if (HASBIT(spriteid, 15)) return NewCallBackResultSpriteGroup(spriteid);
+
+ if (spriteid >= _cur_grffile->spriteset_numsets) {
+ grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Sprite set %u invalid, max %u", setid, type, spriteid, _cur_grffile->spriteset_numsets);
+ return NULL;
+ }
+
+ /* Check if the sprite is within range. This can fail if the Action 0x01
+ * is skipped, as TTDPatch mandates that Action 0x02s must be processed.
+ * We don't have that rule, but must live by the Patch... */
+ if (_cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites > _cur_spriteid) {
+ grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Real Sprite IDs 0x%04X - 0x%04X do not (all) exist (max 0x%04X), leaving empty",
+ setid, type,
+ _cur_grffile->spriteset_start + spriteid * num_sprites,
+ _cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites - 1, _cur_spriteid - 1);
+ return NULL;
+ }
+
+ if (feature != _cur_grffile->spriteset_feature) {
+ grfmsg(1, "NewSpriteGroup(0x%02X:0x%02X): Sprite set feature 0x%02X does not match action feature 0x%02X, skipping",
+ _cur_grffile->spriteset_feature, feature);
+ return NULL;
+ }
+
+ return NewResultSpriteGroup(_cur_grffile->spriteset_start + spriteid * num_sprites, num_sprites);
+}
+
+/* Action 0x02 */
+static void NewSpriteGroup(byte *buf, int len)
+{
+ /* <02> <feature> <set-id> <type/num-entries> <feature-specific-data...>
+ *
+ * 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) */
+ uint8 feature;
+ uint8 setid;
+ uint8 type;
+ SpriteGroup *group = NULL;
+ byte *bufend = buf + len;
+
+ check_length(len, 5, "NewSpriteGroup");
+ buf++;
+
+ feature = grf_load_byte(&buf);
+ setid = grf_load_byte(&buf);
+ type = grf_load_byte(&buf);
+
+ if (setid >= _cur_grffile->spritegroups_count) {
+ // Allocate memory for new sprite group references.
+ _cur_grffile->spritegroups = realloc(_cur_grffile->spritegroups, (setid + 1) * sizeof(*_cur_grffile->spritegroups));
+ // Initialise new space to NULL
+ for (; _cur_grffile->spritegroups_count < (setid + 1); _cur_grffile->spritegroups_count++)
+ _cur_grffile->spritegroups[_cur_grffile->spritegroups_count] = NULL;
+ }
+
+ 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;
+ uint i;
+
+ /* Check we can load the var size parameter */
+ check_length(bufend - buf, 1, "NewSpriteGroup (Deterministic) (1)");
+
+ group = AllocateSpriteGroup();
+ group->type = SGT_DETERMINISTIC;
+ group->g.determ.var_scope = HASBIT(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;
+
+ switch (GB(type, 2, 2)) {
+ default: NOT_REACHED();
+ case 0: group->g.determ.size = DSG_SIZE_BYTE; varsize = 1; break;
+ case 1: group->g.determ.size = DSG_SIZE_WORD; varsize = 2; break;
+ case 2: group->g.determ.size = DSG_SIZE_DWORD; varsize = 4; break;
+ }
+
+ check_length(bufend - buf, 5 + varsize, "NewSpriteGroup (Deterministic) (2)");
+
+ /* 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;
+
+ if (group->g.determ.num_adjusts > 0) {
+ check_length(bufend - buf, 2 + varsize + 3, "NewSpriteGroup (Deterministic) (3)");
+ }
+
+ group->g.determ.num_adjusts++;
+ group->g.determ.adjusts = realloc(group->g.determ.adjusts, group->g.determ.num_adjusts * sizeof(*group->g.determ.adjusts));
+
+ adjust = &group->g.determ.adjusts[group->g.determ.num_adjusts - 1];
+
+ /* The first var adjust doesn't have an operation specified, so we set it to add. */
+ adjust->operation = group->g.determ.num_adjusts == 1 ? DSGA_OP_ADD : grf_load_byte(&buf);
+ adjust->variable = grf_load_byte(&buf);
+ adjust->parameter = IS_BYTE_INSIDE(adjust->variable, 0x60, 0x80) ? grf_load_byte(&buf) : 0;
+
+ varadjust = grf_load_byte(&buf);
+ adjust->shift_num = GB(varadjust, 0, 5);
+ adjust->type = GB(varadjust, 6, 2);
+ adjust->and_mask = grf_load_var(varsize, &buf);
+
+ if (adjust->type != DSGA_TYPE_NONE) {
+ adjust->add_val = grf_load_var(varsize, &buf);
+ adjust->divmod_val = grf_load_var(varsize, &buf);
+ } else {
+ adjust->add_val = 0;
+ adjust->divmod_val = 0;
+ }
+
+ /* Continue reading var adjusts while bit 5 is set. */
+ } while (HASBIT(varadjust, 5));
+
+ group->g.determ.num_ranges = grf_load_byte(&buf);
+ group->g.determ.ranges = calloc(group->g.determ.num_ranges, sizeof(*group->g.determ.ranges));
+
+ check_length(bufend - buf, 2 + (2 + 2 * varsize) * group->g.determ.num_ranges, "NewSpriteGroup (Deterministic)");
+
+ for (i = 0; i < group->g.determ.num_ranges; i++) {
+ group->g.determ.ranges[i].group = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
+ group->g.determ.ranges[i].low = grf_load_var(varsize, &buf);
+ group->g.determ.ranges[i].high = grf_load_var(varsize, &buf);
+ }
+
+ group->g.determ.default_group = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
+ break;
+ }
+
+ /* Randomized Sprite Group */
+ case 0x80: // Self scope
+ case 0x83: // Parent scope
+ {
+ byte triggers;
+ uint i;
+
+ check_length(bufend - buf, 7, "NewSpriteGroup (Randomized) (1)");
+
+ group = AllocateSpriteGroup();
+ group->type = SGT_RANDOMIZED;
+ group->g.random.var_scope = HASBIT(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;
+
+ triggers = grf_load_byte(&buf);
+ group->g.random.triggers = GB(triggers, 0, 7);
+ group->g.random.cmp_mode = HASBIT(triggers, 7) ? RSG_CMP_ALL : RSG_CMP_ANY;
+ group->g.random.lowest_randbit = grf_load_byte(&buf);
+ group->g.random.num_groups = grf_load_byte(&buf);
+ group->g.random.groups = calloc(group->g.random.num_groups, sizeof(*group->g.random.groups));
+
+ check_length(bufend - buf, 2 * group->g.random.num_groups, "NewSpriteGroup (Randomized) (2)");
+
+ for (i = 0; i < group->g.random.num_groups; i++) {
+ group->g.random.groups[i] = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
+ }
+
+ break;
+ }
+
+ /* Neither a variable or randomized sprite group... must be a real group */
+ default:
+ {
+
+
+ switch (feature) {
+ case GSF_TRAIN:
+ case GSF_ROAD:
+ case GSF_SHIP:
+ case GSF_AIRCRAFT:
+ case GSF_STATION:
+ {
+ byte sprites = _cur_grffile->spriteset_numents;
+ byte num_loaded = type;
+ byte num_loading = grf_load_byte(&buf);
+ uint i;
+
+ if (_cur_grffile->spriteset_start == 0) {
+ grfmsg(0, "NewSpriteGroup: No sprite set to work on! Skipping");
+ return;
+ }
+
+ check_length(bufend - buf, 2 * num_loaded + 2 * num_loading, "NewSpriteGroup (Real) (1)");
+
+ group = AllocateSpriteGroup();
+ group->type = SGT_REAL;
+
+ group->g.real.num_loaded = num_loaded;
+ group->g.real.num_loading = num_loading;
+ if (num_loaded > 0) group->g.real.loaded = calloc(num_loaded, sizeof(*group->g.real.loaded));
+ if (num_loading > 0) group->g.real.loading = calloc(num_loading, sizeof(*group->g.real.loading));
+
+ grfmsg(6, "NewSpriteGroup: New SpriteGroup 0x%02X, %u views, %u loaded, %u loading",
+ setid, sprites, num_loaded, num_loading);
+
+ for (i = 0; i < num_loaded; i++) {
+ uint16 spriteid = grf_load_word(&buf);
+ group->g.real.loaded[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites);
+ grfmsg(8, "NewSpriteGroup: + rg->loaded[%i] = subset %u", i, spriteid);
+ }
+
+ for (i = 0; i < num_loading; i++) {
+ uint16 spriteid = grf_load_word(&buf);
+ group->g.real.loading[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites);
+ grfmsg(8, "NewSpriteGroup: + rg->loading[%i] = subset %u", i, spriteid);
+ }
+
+ break;
+ }
+
+ /* Loading of Tile Layout and Production Callback groups would happen here */
+ default: grfmsg(1, "NewSpriteGroup: Unsupported feature %d, skipping", feature);
+ }
+ }
+ }
+
+ _cur_grffile->spritegroups[setid] = group;
+}
+
+/* Action 0x03 */
+static void FeatureMapSpriteGroup(byte *buf, int len)
+{
+ /* <03> <feature> <n-id> <ids>... <num-cid> [<cargo-type> <cid>]... <def-cid>
+ * id-list := [<id>] [id-list]
+ * cargo-list := <cargo-type> <cid> [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) */
+ /* TODO: Bridges, town houses. */
+ /* TODO: Multiple cargo support could be useful even for trains/cars -
+ * cargo id 0xff is used for showing images in the build train list. */
+
+ static byte *last_engines;
+ static int last_engines_count;
+ uint8 feature;
+ uint8 idcount;
+ bool wagover;
+ uint8 cidcount;
+ int c, i;
+
+ check_length(len, 6, "FeatureMapSpriteGroup");
+ feature = buf[1];
+ idcount = buf[2] & 0x7F;
+ wagover = (buf[2] & 0x80) == 0x80;
+ check_length(len, 3 + idcount, "FeatureMapSpriteGroup");
+
+ /* If ``n-id'' (or ``idcount'') is zero, this is a ``feature
+ * callback''. */
+ if (idcount == 0) {
+ grfmsg(2, "FeatureMapSpriteGroup: Feature callbacks not implemented yet");
+ return;
+ }
+
+ cidcount = buf[3 + idcount];
+ check_length(len, 4 + idcount + cidcount * 3, "FeatureMapSpriteGroup");
+
+ grfmsg(6, "FeatureMapSpriteGroup: Feature %d, %d ids, %d cids, wagon override %d",
+ feature, idcount, cidcount, wagover);
+
+ if (feature > GSF_STATION) {
+ grfmsg(1, "FeatureMapSpriteGroup: Unsupported feature %d, skipping", feature);
+ return;
+ }
+
+
+ if (feature == GSF_STATION) {
+ // We do things differently for stations.
+
+ for (i = 0; i < idcount; i++) {
+ uint8 stid = buf[3 + i];
+ StationSpec *statspec = _cur_grffile->stations[stid];
+ byte *bp = &buf[4 + idcount];
+
+ for (c = 0; c < cidcount; c++) {
+ uint8 ctype = grf_load_byte(&bp);
+ uint16 groupid = grf_load_word(&bp);
+
+ if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
+ grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping",
+ groupid, _cur_grffile->spritegroups_count);
+ return;
+ }
+
+ if (ctype == 0xFE) ctype = GC_DEFAULT_NA;
+ if (ctype == 0xFF) ctype = GC_PURCHASE;
+
+ if (ctype >= NUM_GLOBAL_CID) {
+ grfmsg(1, "FeatureMapSpriteGroup: Cargo type %d out of range, skipping.", ctype);
+ continue;
+ }
+
+ statspec->spritegroup[ctype] = _cur_grffile->spritegroups[groupid];
+ }
+ }
+
+ {
+ byte *bp = buf + 4 + idcount + cidcount * 3;
+ uint16 groupid = grf_load_word(&bp);
+
+ if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
+ grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping",
+ groupid, _cur_grffile->spritegroups_count);
+ return;
+ }
+
+ for (i = 0; i < idcount; i++) {
+ uint8 stid = buf[3 + i];
+ StationSpec *statspec = _cur_grffile->stations[stid];
+
+ statspec->spritegroup[GC_DEFAULT] = _cur_grffile->spritegroups[groupid];
+ statspec->grfid = _cur_grffile->grfid;
+ statspec->localidx = stid;
+ SetCustomStationSpec(statspec);
+ }
+ }
+ return;
+ }
+
+ // FIXME: Tropicset contains things like:
+ // 03 00 01 19 01 00 00 00 00 - this is missing one 00 at the end,
+ // what should we exactly do with that? --pasky
+
+ if (_cur_grffile->spriteset_start == 0 || _cur_grffile->spritegroups == 0) {
+ grfmsg(1, "FeatureMapSpriteGroup: No sprite set to work on! Skipping");
+ return;
+ }
+
+ if (!wagover && last_engines_count != idcount) {
+ last_engines = realloc(last_engines, idcount);
+ last_engines_count = idcount;
+ }
+
+ if (wagover) {
+ if (last_engines_count == 0) {
+ grfmsg(0, "FeatureMapSpriteGroup: WagonOverride: No engine to do override with");
+ return;
+ }
+ grfmsg(6, "FeatureMapSpriteGroup: WagonOverride: %u engines, %u wagons",
+ last_engines_count, idcount);
+ }
+
+
+ for (i = 0; i < idcount; i++) {
+ uint8 engine_id = buf[3 + i];
+ uint8 engine = engine_id + _vehshifts[feature];
+ byte *bp = &buf[4 + idcount];
+
+ if (engine_id > _vehcounts[feature]) {
+ grfmsg(0, "Id %u for feature 0x%02X is out of bounds", engine_id, feature);
+ return;
+ }
+
+ grfmsg(7, "FeatureMapSpriteGroup: [%d] Engine %d...", i, engine);
+
+ for (c = 0; c < cidcount; c++) {
+ uint8 ctype = grf_load_byte(&bp);
+ uint16 groupid = grf_load_word(&bp);
+
+ grfmsg(8, "FeatureMapSpriteGroup: * [%d] Cargo type 0x%X, group id 0x%02X", c, ctype, groupid);
+
+ if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
+ grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count);
+ return;
+ }
+
+ if (ctype == GC_INVALID) ctype = GC_PURCHASE;
+
+ if (ctype >= NUM_GLOBAL_CID) {
+ grfmsg(1, "FeatureMapSpriteGroup: Cargo type %d out of range, skipping.", ctype);
+ continue;
+ }
+
+ if (wagover) {
+ SetWagonOverrideSprites(engine, ctype, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
+ } else {
+ SetCustomEngineSprites(engine, ctype, _cur_grffile->spritegroups[groupid]);
+ last_engines[i] = engine;
+ }
+ }
+ }
+
+ {
+ byte *bp = buf + 4 + idcount + cidcount * 3;
+ uint16 groupid = grf_load_word(&bp);
+
+ grfmsg(8, "-- Default group id 0x%04X", groupid);
+
+ for (i = 0; i < idcount; i++) {
+ uint8 engine = buf[3 + i] + _vehshifts[feature];
+
+ // Don't tell me you don't love duplicated code!
+ if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
+ grfmsg(1, "FeatureMapSpriteGroup: Spriteset 0x%04X out of range 0x%X or empty, skipping", groupid, _cur_grffile->spritegroups_count);
+ return;
+ }
+
+ if (wagover) {
+ /* If the ID for this action 3 is the same as the vehicle ID,
+ * this indicates we have a helicopter rotor override. */
+ if (feature == GSF_AIRCRAFT && engine == last_engines[i]) {
+ SetRotorOverrideSprites(engine, _cur_grffile->spritegroups[groupid]);
+ } else {
+ // TODO: No multiple cargo types per vehicle yet. --pasky
+ SetWagonOverrideSprites(engine, GC_DEFAULT, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
+ }
+ } else {
+ SetCustomEngineSprites(engine, GC_DEFAULT, _cur_grffile->spritegroups[groupid]);
+ SetEngineGRF(engine, _cur_grffile);
+ last_engines[i] = engine;
+ }
+ }
+ }
+}
+
+/* Action 0x04 */
+static void FeatureNewName(byte *buf, int len)
+{
+ /* <04> <veh-type> <language-id> <num-veh> <offset> <data...>
+ *
+ * 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. */
+ /* TODO: No support for changing non-vehicle text. Perhaps we shouldn't
+ * implement it at all, but it could be useful for some "modpacks"
+ * (completely new scenarios changing all graphics and logically also
+ * factory names etc). We should then also support all languages (by
+ * name), not only the original four ones. --pasky
+ * All of the above are coming. In Time. Some sooner than others :)*/
+
+ uint8 feature;
+ uint8 lang;
+ uint8 num;
+ uint16 id;
+ uint16 endid;
+ const char* name;
+ bool new_scheme = _cur_grffile->grf_version >= 7;
+ bool generic;
+
+ check_length(len, 6, "FeatureNewName");
+ buf++;
+ feature = grf_load_byte(&buf);
+ lang = grf_load_byte(&buf);
+ num = grf_load_byte(&buf);
+ generic = HASBIT(lang, 7);
+ id = generic ? grf_load_word(&buf) : grf_load_byte(&buf);
+
+ CLRBIT(lang, 7);
+
+ if (feature <= GSF_AIRCRAFT && id < _vehcounts[feature]) {
+ id += _vehshifts[feature];
+ }
+ endid = id + num;
+
+ grfmsg(6, "FeatureNewName: About to rename engines %d..%d (feature %d) in language 0x%02X",
+ id, endid, feature, lang);
+
+ name = (const char*)buf; /*transfer read value*/
+ len -= generic ? 6 : 5;
+
+ for (; id < endid && len > 0; id++) {
+ size_t ofs = strlen(name) + 1;
+
+ if (ofs < 128) {
+ grfmsg(8, "FeatureNewName: %d <- %s", id, name);
+
+ switch (feature) {
+ case GSF_TRAIN:
+ case GSF_ROAD:
+ case GSF_SHIP:
+ case GSF_AIRCRAFT: {
+ if (id < TOTAL_NUM_ENGINES) {
+ StringID string = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_8000_KIRBY_PAUL_TANK_STEAM + id);
+ SetCustomEngineName(id, string);
+ } else {
+ AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, id);
+ }
+ break;
+ }
+
+ 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 sclass = _cur_grffile->stations[GB(id, 0, 8)]->sclass;
+ SetStationClassName(sclass, AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, 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, name, STR_UNDEFINED);
+ }
+ break;
+
+ case 0xC9:
+ case 0xD0:
+ case 0xDC:
+ AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED);
+ break;
+
+ default:
+ grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
+ break;
+ }
+ break;
+
+#if 0
+ case GSF_CANAL :
+ case GSF_BRIDGE :
+ case GSF_TOWNHOUSE :
+ AddGRFString(_cur_spriteid, id, lang, name);
+ switch (GB(id, 8,8)) {
+ case 0xC9: /* House name */
+ default:
+ grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
+ }
+ break;
+
+ case GSF_INDUSTRIES :
+ case 0x48 : /* for generic strings */
+ AddGRFString(_cur_spriteid, id, lang, name);
+ break;
+ default :
+ grfmsg(7, "FeatureNewName: Unsupported feature (0x%02X)", feature);
+ break;
+#endif
+ }
+ } else {
+ /* ofs is the string length + 1, so if the string is empty, ofs
+ * is 1 */
+ if (ofs == 1) {
+ grfmsg(7, "FeatureNewName: Can't add empty name");
+ } else {
+ grfmsg(7, "FeatureNewName: Too long a name (%d)", ofs);
+ }
+ }
+ name += ofs;
+ len -= (int)ofs;
+ }
+}
+
+/* Action 0x05 */
+static void GraphicsNew(byte *buf, int len)
+{
+ /* <05> <graphics-type> <num-sprites> <other data...>
+ *
+ * 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;
+ uint16 num;
+ SpriteID replace = 0;
+
+ check_length(len, 2, "GraphicsNew");
+ buf++;
+ type = grf_load_byte(&buf);
+ num = grf_load_extended(&buf);
+
+ switch (type) {
+ case 0x04: /* Signal graphics */
+ if (num != 112 && num != 240) {
+ grfmsg(1, "GraphicsNews: Signal graphics sprite count must be 112 or 240, skipping");
+ return;
+ }
+ _signal_base = _cur_spriteid;
+ break;
+
+ case 0x05: /* Catenary graphics */
+ if (num != 48) {
+ grfmsg(1, "GraphicsNews: Catenary graphics sprite count must be 48, skipping");
+ return;
+ }
+ replace = SPR_ELRAIL_BASE + 3;
+ break;
+
+ case 0x06: /* Foundations */
+ if (num != 74) {
+ grfmsg(1, "GraphicsNews: Foundation graphics sprite count must be 74, skipping");
+ return;
+ }
+ replace = SPR_SLOPES_BASE;
+ break;
+
+ case 0x08: /* Canal graphics */
+ if (num != 65) {
+ grfmsg(1, "GraphicsNews: Canal graphics sprite count must be 65, skipping");
+ return;
+ }
+ replace = SPR_CANALS_BASE + 5;
+ break;
+
+ case 0x0D: /* Coast graphics */
+ if (num != 16) {
+ grfmsg(1, "GraphicsNews: Coast graphics sprite count must be 16, skipping");
+ return;
+ }
+ _coast_base = _cur_spriteid;
+ break;
+
+ default:
+ grfmsg(2, "GraphicsNew: Custom graphics (type 0x%02X) sprite block of length %u (unimplemented, ignoring)",
+ type, num);
+ return;
+ }
+
+ if (replace == 0) {
+ grfmsg(2, "GraphicsNew: Loading %u sprites of type 0x%02X at SpriteID 0x%04X", num, type, _cur_spriteid);
+ } else {
+ grfmsg(2, "GraphicsNew: Replacing %u sprites of type 0x%02X at SpriteID 0x%04X", num, type, replace);
+ }
+
+ for (; num > 0; num--) {
+ LoadNextSprite(replace == 0 ? _cur_spriteid++ : replace++, _file_index);
+ _nfo_line++;
+ }
+}
+
+static uint32 GetParamVal(byte param, uint32 *cond_val)
+{
+ switch (param) {
+ case 0x81: /* current year */
+ return clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR;
+
+ case 0x83: /* current climate, 0=temp, 1=arctic, 2=trop, 3=toyland */
+ return _opt.landscape;
+
+ case 0x84: /* GRF loading stage */
+ return (_cur_stage > GLS_INIT) | ((_cur_stage == GLS_ACTIVATION) << 9);
+
+ 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 0x86: /* road traffic side, bit 4 clear=left, set=right */
+ return _opt.road_side << 4;
+
+ case 0x88: /* GRF ID check */
+ return 0;
+
+ case 0x8B: { /* TTDPatch version */
+ uint major = 2;
+ uint minor = 6;
+ uint revision = 0; // special case: 2.0.1 is 2.0.10
+ uint build = 1168;
+ return (major << 24) | (minor << 20) | (revision << 16) | build;
+ }
+
+ case 0x8D: /* TTD Version, 00=DOS, 01=Windows */
+ return !_use_dos_palette;
+
+ case 0x8E: /* Y-offset for train sprites */
+ return _traininfo_vehicle_pitch;
+
+ case 0x92: /* Game mode */
+ return _game_mode;
+
+ case 0x9A: /* Always -1 */
+ return -1;
+
+ case 0x9D: /* TTD Platform, 00=TTDPatch, 01=OpenTTD */
+ return 1;
+
+ case 0x9E: /* Miscellaneous GRF features */
+ return _misc_grf_features;
+
+ default:
+ /* GRF Parameter */
+ if (param < 0x80) return _cur_grffile->param[param];
+
+ /* In-game variable. */
+ grfmsg(1, "Unsupported in-game variable 0x%02X", param);
+ return -1;
+ }
+}
+
+/* Action 0x06 */
+static void CfgApply(byte *buf, int len)
+{
+ /* <06> <param-num> <param-size> <offset> ... <FF>
+ *
+ * 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 */
+ uint32 pos = FioGetPos();
+ uint16 num = FioReadWord();
+ uint8 type = FioReadByte();
+
+ /* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */
+ if (type == 0xFF) {
+ _preload_sprite = malloc(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)");
+ return;
+ }
+
+ /* Now perform the Action 0x06 on our data. */
+ buf++;
+
+ 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 = grf_load_byte(&buf);
+ 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 = grf_load_byte(&buf);
+
+ /* 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 = grf_load_extended(&buf);
+
+ /* 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);
+
+ for (i = 0; i < param_size; i++) {
+ uint32 value = GetParamVal(param_num + i / 4, NULL);
+
+ if (add_value) {
+ _preload_sprite[offset + i] += GB(value, (i % 4) * 8, 8);
+ } else {
+ _preload_sprite[offset + i] = GB(value, (i % 4) * 8, 8);
+ }
+ }
+ }
+}
+
+/* Action 0x07 */
+/* Action 0x09 */
+static void SkipIf(byte *buf, int len)
+{
+ /* <07/09> <param-num> <param-size> <condition-type> <value> <num-sprites>
+ *
+ * B param-num
+ * B param-size
+ * B condition-type
+ * V value
+ * B num-sprites */
+ /* TODO: More params. More condition types. */
+ uint8 param;
+ uint8 paramsize;
+ uint8 condtype;
+ uint8 numsprites;
+ uint32 param_val = 0;
+ uint32 cond_val = 0;
+ uint32 mask = 0;
+ bool result;
+ GRFLabel *label;
+ GRFLabel *choice = NULL;
+
+ check_length(len, 6, "SkipIf");
+ buf++;
+ param = grf_load_byte(&buf);
+ paramsize = grf_load_byte(&buf);
+ condtype = grf_load_byte(&buf);
+
+ if (condtype < 2) {
+ /* Always 1 for bit tests, the given value should be ignored. */
+ paramsize = 1;
+ }
+
+ switch (paramsize) {
+ case 4: cond_val = grf_load_dword(&buf); mask = 0xFFFFFFFF; break;
+ case 2: cond_val = grf_load_word(&buf); mask = 0x0000FFFF; break;
+ case 1: cond_val = grf_load_byte(&buf); mask = 0x000000FF; break;
+ default: break;
+ }
+
+ if (param < 0x80 && _cur_grffile->param_end <= param) {
+ grfmsg(7, "Param %d undefined, skipping test", param);
+ return;
+ }
+
+ param_val = GetParamVal(param, &cond_val);
+
+ grfmsg(7, "Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val);
+
+ if (param == 0x88) {
+ /* GRF ID checks */
+
+ const GRFConfig *c = GetGRFConfig(cond_val);
+
+ if (condtype != 10 && c == NULL) {
+ grfmsg(7, "GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val));
+ return;
+ }
+
+ switch (condtype) {
+ /* Tests 6 to 10 are only for param 0x88, GRFID checks */
+ case 6: /* Is GRFID active? */
+ result = HASBIT(c->flags, GCF_ACTIVATED);
+ break;
+
+ case 7: /* Is GRFID non-active? */
+ result = !HASBIT(c->flags, GCF_ACTIVATED);
+ break;
+
+ case 8: /* GRFID is not but will be active? */
+ result = !HASBIT(c->flags, GCF_ACTIVATED) && !HASBIT(c->flags, GCF_DISABLED);
+ break;
+
+ case 9: /* GRFID is or will be active? */
+ result = !HASBIT(c->flags, GCF_NOT_FOUND) && !HASBIT(c->flags, GCF_DISABLED);
+ break;
+
+ case 10: /* 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 || HASBIT(c->flags, GCF_DISABLED) || HASBIT(c->flags, GCF_NOT_FOUND);
+ break;
+
+ default: grfmsg(1, "Unsupported GRF test %d. Ignoring", condtype); return;
+ }
+ } else {
+ /* Parameter or variable tests */
+ switch (condtype) {
+ case 0: result = !!(param_val & (1 << cond_val));
+ break;
+ case 1: result = !(param_val & (1 << cond_val));
+ break;
+ case 2: result = (param_val & mask) == cond_val;
+ break;
+ case 3: result = (param_val & mask) != cond_val;
+ break;
+ case 4: result = (param_val & mask) < cond_val;
+ break;
+ case 5: result = (param_val & mask) > cond_val;
+ break;
+
+ default: grfmsg(1, "Unsupported test %d. Ignoring", condtype); return;
+ }
+ }
+
+ if (!result) {
+ grfmsg(2, "Not skipping sprites, test was false");
+ return;
+ }
+
+ numsprites = grf_load_byte(&buf);
+
+ /* 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. */
+ for (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 > _nfo_line) {
+ choice = label;
+ break;
+ }
+ }
+
+ if (choice != NULL) {
+ grfmsg(2, "Jumping to label 0x%0X at line %d, test was true", choice->label, choice->nfo_line);
+ FioSeekTo(choice->pos, SEEK_SET);
+ _nfo_line = choice->nfo_line;
+ return;
+ }
+
+ grfmsg(2, "Skipping %d sprites, test was true", numsprites);
+ _skip_sprites = numsprites;
+ if (_skip_sprites == 0) {
+ /* Zero means there are no sprites to skip, so
+ * we use -1 to indicate that all further
+ * sprites should be skipped. */
+ _skip_sprites = -1;
+ }
+}
+
+
+/* Action 0x08 (GLS_SAFETYSCAN) */
+static void SafeInfo(byte *buf, int len)
+{
+ uint8 version;
+ uint32 grfid;
+ const char *name;
+ const char *info;
+ int name_len;
+ int info_len;
+
+ check_length(len, 8, "Info"); buf++;
+ version = grf_load_byte(&buf);
+ grfid = grf_load_dword(&buf);
+
+ _cur_grfconfig->grfid = grfid;
+
+ /* GRF IDs starting with 0xFF are reserved for internal TTDPatch use */
+ if (GB(grfid, 24, 8) == 0xFF) SETBIT(_cur_grfconfig->flags, GCF_SYSTEM);
+
+ len -= 6;
+ name = (const char*)buf;
+ name_len = ttd_strnlen(name, len);
+
+ if (name_len < len) {
+ _cur_grfconfig->name = TranslateTTDPatchCodes(name);
+
+ len -= name_len + 1;
+ info = name + name_len + 1;
+ info_len = ttd_strnlen(info, len);
+
+ if (info_len < len) _cur_grfconfig->info = TranslateTTDPatchCodes(info);
+ }
+}
+
+/* Action 0x08 (GLS_INFOSCAN) */
+static void ScanInfo(byte *buf, int len)
+{
+ SafeInfo(buf, len);
+
+ /* GLS_INFOSCAN only looks for the action 8, so we can skip the rest of the file */
+ _skip_sprites = -1;
+}
+
+/* Action 0x08 */
+static void GRFInfo(byte *buf, int len)
+{
+ /* <08> <version> <grf-id> <name> <info>
+ *
+ * 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 */
+ /* TODO: Check version. (We should have own versioning done somehow.) */
+ uint8 version;
+ uint32 grfid;
+ const char *name;
+
+ check_length(len, 8, "GRFInfo"); buf++;
+ version = grf_load_byte(&buf);
+ grfid = grf_load_dword(&buf);
+ name = (const char*)buf;
+
+ _cur_grffile->grfid = grfid;
+ _cur_grffile->grf_version = version;
+ SETBIT(_cur_grfconfig->flags, GCF_ACTIVATED);
+
+ /* Do swap the GRFID for displaying purposes since people expect that */
+ DEBUG(grf, 1, "Loaded GRFv%d set %08lX - %s", version, BSWAP32(grfid), name);
+}
+
+/* Action 0x0A */
+static void SpriteReplace(byte *buf, int len)
+{
+ /* <0A> <num-sets> <set1> [<set2> ...]
+ * <set>: <num-sprites> <first-sprite>
+ *
+ * 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;
+ uint i;
+
+ buf++; /* skip action byte */
+ num_sets = grf_load_byte(&buf);
+
+ for (i = 0; i < num_sets; i++) {
+ uint8 num_sprites = grf_load_byte(&buf);
+ uint16 first_sprite = grf_load_word(&buf);
+ uint j;
+
+ grfmsg(2, "SpriteReplace: [Set %d] Changing %d sprites, beginning with %d",
+ i, num_sprites, first_sprite
+ );
+
+ for (j = 0; j < num_sprites; j++) {
+ LoadNextSprite(first_sprite + j, _file_index); // XXX
+ _nfo_line++;
+ }
+ }
+}
+
+/* Action 0x0B */
+static void GRFError(byte *buf, int len)
+{
+ /* <0B> <severity> <language-id> <message-id> [<message...> 00] [<data...>] 00 [<parnum>]
+ *
+ * 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 see action 6, only used with built-in message 03 */
+ /* TODO: For now we just show the message, sometimes incomplete and never translated. */
+
+ static const char *const msgstr[] = {
+ "%sRequires at least pseudo-TTDPatch version %s",
+ "%sThis file is for %s version of TTD",
+ "%sDesigned to be used with %s",
+ "%sInvalid parameter %s",
+ "%sMust be loaded before %s",
+ "%sMust be loaded after %s",
+ "%s%s"
+ };
+
+ static const char *const sevstr[] = {
+ "",
+ "Warning: ",
+ "Error: ",
+ "Fatal: ",
+ };
+ uint8 sevid;
+ uint8 msgid;
+
+ check_length(len, 6, "GRFError");
+ sevid = buf[1];
+ msgid = buf[3];
+
+ // Undocumented TTDPatch feature.
+ if (!HASBIT(sevid, 7) && _cur_stage < GLS_ACTIVATION) {
+ grfmsg(7, "Skipping non-fatal GRFError in stage 1");
+ return;
+ }
+
+ sevid = GB(sevid, 0, 2);
+ grfmsg(0, msgstr[(msgid == 0xFF) ? lengthof(msgstr) - 1 : msgid], sevstr[sevid], &buf[4]);
+}
+
+/* Action 0x0C */
+static void GRFComment(byte *buf, int len)
+{
+ /* <0C> [<ignored...>]
+ *
+ * V ignored Anything following the 0C is ignored */
+
+ static char comment[256];
+ if (len == 1) return;
+
+ ttd_strlcpy(comment, (char*)(buf + 1), minu(sizeof(comment), len));
+ grfmsg(2, "GRFComment: %s", comment);
+}
+
+/* Action 0x0D */
+static void ParamSet(byte *buf, int len)
+{
+ /* <0D> <target> <operation> <source1> <source2> [<data>]
+ *
+ * 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)
+ */
+
+ byte target;
+ byte oper;
+ uint32 src1;
+ uint32 src2;
+ uint32 data = 0;
+ uint32 res;
+
+ check_length(len, 5, "ParamSet");
+ buf++;
+ target = grf_load_byte(&buf);
+ oper = grf_load_byte(&buf);
+ src1 = grf_load_byte(&buf);
+ src2 = grf_load_byte(&buf);
+
+ if (len >= 8) data = grf_load_dword(&buf);
+
+ /* 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 (oper & 0x80) {
+ if (target < 0x80 && target < _cur_grffile->param_end) {
+ grfmsg(7, "Param %u already defined, skipping", target);
+ return;
+ }
+
+ oper &= 0x7F;
+ }
+
+ if (src2 == 0xFE) {
+ if (GB(data, 0, 8) == 0xFF) {
+ if (data == 0x0000FFFF) {
+ /* Patch variables */
+ grfmsg(2, "ParamSet: Reading Patch variables unsupported");
+ return;
+ } else {
+ /* GRF Resource Management */
+ if (_cur_stage != GLS_ACTIVATION) {
+ /* Ignore GRM during initialization */
+ src1 = 0;
+ } else {
+ uint8 op = src1;
+ uint8 feature = GB(data, 8, 8);
+ uint16 count = GB(data, 16, 16);
+
+ switch (feature) {
+ case 0x00: /* Trains */
+ case 0x01: /* Road Vehicles */
+ case 0x02: /* Ships */
+ case 0x03: /* Aircraft */
+ {
+ uint start = 0;
+ uint size = 0;
+ uint shift = _vehshifts[feature];
+ int i;
+
+ if (op == 6) {
+ /* Return GRFID of set that reserved ID */
+ src1 = _grm_engines[shift + _cur_grffile->param[target]];
+ break;
+ }
+
+ /* With an operation of 2 or 3, we want to reserve a specific block of IDs */
+ if (op == 2 || op == 3) start = _cur_grffile->param[target];
+
+ for (i = start; i < _vehcounts[feature]; i++) {
+ if (_grm_engines[shift + 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, "GRM: Reserving %d vehicles at %d", count, start);
+ for (i = 0; i < count; i++) _grm_engines[shift + start + i] = _cur_grffile->grfid;
+ }
+ src1 = start;
+ } else {
+ /* Unable to allocate */
+ if (op != 4 && op != 5) {
+ /* Deactivate GRF */
+ grfmsg(0, "GRM: Unable to allocate %d vehicles, deactivating", count);
+ SETBIT(_cur_grfconfig->flags, GCF_DISABLED);
+ CLRBIT(_cur_grfconfig->flags, GCF_ACTIVATED);
+
+ _skip_sprites = -1;
+ return;
+ }
+
+ grfmsg(1, "GRM: Unable to allocate %d vehicles", count);
+ src1 = -1;
+ }
+ break;
+ }
+
+ case 0x08: /* General sprites */
+ switch (op) {
+ case 0:
+ /* 'Reserve' space at the current sprite ID */
+ src1 = _cur_spriteid;
+ _cur_spriteid += count;
+ break;
+
+ case 1:
+ src1 = _cur_spriteid;
+ break;
+
+ default:
+ grfmsg(1, "GRM: Unsupported operation %d for general sprites", op);
+ return;
+ }
+ break;
+
+ default: grfmsg(1, "GRM: Unsupported feature 0x%X", feature); return;
+ }
+ }
+ }
+ } else {
+ /* Read another GRF File's parameter */
+ const GRFFile *file = GetFileByGRFID(data);
+ if (file == NULL || src1 >= file->param_end) {
+ src1 = 0;
+ } else {
+ src1 = file->param[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 <data>. 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. */
+
+ 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
+ _traininfo_vehicle_pitch = res;
+ break;
+
+ // TODO implement
+ case 0x8F: // Rail track type cost factors
+ 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 */
+ _traininfo_vehicle_width = HASBIT(res, 3) ? 32 : 29;
+ break;
+
+ default:
+ if (target < 0x80) {
+ _cur_grffile->param[target] = res;
+ 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 */
+static void GRFInhibit(byte *buf, int len)
+{
+ /* <0E> <num> <grfids...>
+ *
+ * B num Number of GRFIDs that follow
+ * D grfids GRFIDs of the files to deactivate */
+
+ byte num;
+ int i;
+
+ check_length(len, 1, "GRFInhibit");
+ buf++, len--;
+ num = grf_load_byte(&buf); len--;
+ check_length(len, 4 * num, "GRFInhibit");
+
+ for (i = 0; i < num; i++) {
+ uint32 grfid = grf_load_dword(&buf);
+ GRFConfig *file = GetGRFConfig(grfid);
+
+ /* Unset activation flag */
+ if (file != NULL && file != _cur_grfconfig) {
+ grfmsg(2, "GRFInhibit: Deactivating file '%s'", file->filename);
+ SETBIT(file->flags, GCF_DISABLED);
+ CLRBIT(file->flags, GCF_ACTIVATED);
+ }
+ }
+}
+
+/* Action 0x10 */
+static void DefineGotoLabel(byte *buf, int len)
+{
+ /* <10> <label> [<comment>]
+ *
+ * B label The label to define
+ * V comment Optional comment - ignored */
+
+ GRFLabel *label;
+
+ check_length(len, 1, "DefineGotoLabel");
+ buf++; len--;
+
+ label = malloc(sizeof(*label));
+ label->label = grf_load_byte(&buf);
+ label->nfo_line = _nfo_line;
+ label->pos = FioGetPos();
+ label->next = NULL;
+
+ /* Set up a linked list of goto targets which we will search in an Action 0x7/0x9 */
+ if (_cur_grffile->label == NULL) {
+ _cur_grffile->label = label;
+ } else {
+ /* Attach the label to the end of the list */
+ GRFLabel *l;
+ for (l = _cur_grffile->label; l->next != NULL; l = l->next);
+ l->next = label;
+ }
+
+ grfmsg(2, "DefineGotoLabel: GOTO target with label 0x%02X", label->label);
+}
+
+/* Action 0x11 */
+static void GRFSound(byte *buf, int len)
+{
+ /* <11> <num>
+ *
+ * W num Number of sound files that follow */
+
+ uint16 num;
+
+ check_length(len, 1, "GRFSound");
+ buf++;
+ num = grf_load_word(&buf);
+
+ _grf_data_blocks = num;
+ _grf_data_type = GDT_SOUND;
+
+ if (_cur_grffile->sound_offset == 0) _cur_grffile->sound_offset = GetNumSounds();
+}
+
+static void ImportGRFSound(byte *buf, int len)
+{
+ const GRFFile *file;
+ FileEntry *se = AllocateFileEntry();
+ uint32 grfid = grf_load_dword(&buf);
+ uint16 sound = grf_load_word(&buf);
+
+ file = GetFileByGRFID(grfid);
+ if (file == NULL || file->sound_offset == 0) {
+ grfmsg(1, "ImportGRFSound: Source file not available");
+ return;
+ }
+
+ if (file->sound_offset + sound >= GetNumSounds()) {
+ grfmsg(1, "ImportGRFSound: Sound effect %d is invalid", sound);
+ return;
+ }
+
+ grfmsg(2, "ImportGRFSound: Copying sound %d (%d) from file %X", sound, file->sound_offset + sound, grfid);
+
+ *se = *GetSound(file->sound_offset + sound);
+
+ /* Reset volume and priority, which TTDPatch doesn't copy */
+ se->volume = 128;
+ se->priority = 0;
+}
+
+/* 'Action 0xFE' */
+static void GRFImportBlock(byte *buf, int len)
+{
+ if (_grf_data_blocks == 0) {
+ grfmsg(2, "GRFImportBlock: Unexpected import block, skipping");
+ return;
+ }
+
+ buf++;
+
+ _grf_data_blocks--;
+
+ /* XXX 'Action 0xFE' isn't really specified. It is only mentioned for
+ * importing sounds, so this is probably all wrong... */
+ if (grf_load_byte(&buf) != _grf_data_type) {
+ grfmsg(1, "GRFImportBlock: Import type mismatch");
+ }
+
+ switch (_grf_data_type) {
+ case GDT_SOUND: ImportGRFSound(buf, len - 1); break;
+ default: NOT_REACHED(); break;
+ }
+}
+
+static void LoadGRFSound(byte *buf, int len)
+{
+ byte *buf_start = buf;
+ FileEntry *se;
+
+ /* Allocate a sound entry. This is done even if the data is not loaded
+ * so that the indices used elsewhere are still correct. */
+ se = AllocateFileEntry();
+
+ if (grf_load_dword(&buf) != BSWAP32('RIFF')) {
+ grfmsg(1, "LoadGRFSound: Missing RIFF header");
+ return;
+ }
+
+ /* Size of file -- we ignore this */
+ grf_load_dword(&buf);
+
+ if (grf_load_dword(&buf) != BSWAP32('WAVE')) {
+ grfmsg(1, "LoadGRFSound: Invalid RIFF type");
+ return;
+ }
+
+ for (;;) {
+ uint32 tag = grf_load_dword(&buf);
+ uint32 size = grf_load_dword(&buf);
+
+ switch (tag) {
+ case ' tmf': /* 'fmt ' */
+ /* Audio format, must be 1 (PCM) */
+ if (grf_load_word(&buf) != 1) {
+ grfmsg(1, "LoadGRFSound: Invalid audio format");
+ return;
+ }
+ se->channels = grf_load_word(&buf);
+ se->rate = grf_load_dword(&buf);
+ grf_load_dword(&buf);
+ grf_load_word(&buf);
+ se->bits_per_sample = grf_load_word(&buf);
+
+ /* Consume any extra bytes */
+ for (; size > 16; size--) grf_load_byte(&buf);
+ break;
+
+ case 'atad': /* 'data' */
+ se->file_size = size;
+ se->file_offset = FioGetPos() - (len - (buf - buf_start)) + 1;
+ se->file_offset |= _file_index << 24;
+
+ /* Set default volume and priority */
+ se->volume = 0x80;
+ se->priority = 0;
+
+ grfmsg(2, "LoadGRFSound: channels %u, sample rate %u, bits per sample %u, length %u", se->channels, se->rate, se->bits_per_sample, size);
+ return;
+
+ default:
+ se->file_size = 0;
+ return;
+ }
+ }
+}
+
+/* Action 0x12 */
+static void LoadFontGlyph(byte *buf, int len)
+{
+ /* <12> <num_def> <font_size> <num_char> <base_char>
+ *
+ * B num_def Number of definitions
+ * B font_size Size of font (0 = normal, 1 = small, 2 = large)
+ * B num_char Number of consecutive glyphs
+ * W base_char First character index */
+
+ uint8 num_def;
+ uint i;
+
+ buf++; len--;
+ check_length(len, 1, "LoadFontGlyph");
+
+ num_def = grf_load_byte(&buf);
+
+ check_length(len, 1 + num_def * 4, "LoadFontGlyph");
+
+ for (i = 0; i < num_def; i++) {
+ FontSize size = grf_load_byte(&buf);
+ uint8 num_char = grf_load_byte(&buf);
+ uint16 base_char = grf_load_word(&buf);
+ uint c;
+
+ grfmsg(7, "LoadFontGlyph: Loading %u glyph(s) at 0x%04X for size %u", num_char, base_char, size);
+
+ for (c = 0; c < num_char; c++) {
+ SetUnicodeGlyph(size, base_char + c, _cur_spriteid);
+ LoadNextSprite(_cur_spriteid++, _file_index);
+ _nfo_line++;
+ }
+ }
+}
+
+/* 'Action 0xFF' */
+static void GRFDataBlock(byte *buf, int len)
+{
+ byte name_len;
+ const char *name;
+
+ if (_grf_data_blocks == 0) {
+ grfmsg(2, "GRFDataBlock: unexpected data block, skipping");
+ return;
+ }
+
+ buf++;
+ name_len = grf_load_byte(&buf);
+ name = (const char *)buf;
+ buf += name_len + 1;
+
+ grfmsg(2, "GRFDataBlock: block name '%s'...", name);
+
+ _grf_data_blocks--;
+
+ switch (_grf_data_type) {
+ case GDT_SOUND: LoadGRFSound(buf, len - name_len - 2); break;
+ default: NOT_REACHED(); break;
+ }
+}
+
+
+/* Used during safety scan on unsafe actions */
+static void GRFUnsafe(byte *buf, int len)
+{
+ SETBIT(_cur_grfconfig->flags, GCF_UNSAFE);
+
+ /* Skip remainder of GRF if GRF ID is set */
+ if (_cur_grfconfig->grfid != 0) _skip_sprites = -1;
+}
+
+
+static void InitializeGRFSpecial(void)
+{
+ _ttdpatch_flags[0] = ((_patches.always_small_airport ? 1 : 0) << 0x0C) // keepsmallairport
+ | (1 << 0x0D) // newairports
+ | (1 << 0x0E) // largestations
+ | ((_patches.longbridges ? 1 : 0) << 0x0F) // longbridges
+ | (0 << 0x10) // loadtime
+ | (1 << 0x12) // presignals
+ | (1 << 0x13) // extpresignals
+ | ((_patches.never_expire_vehicles ? 1 : 0) << 0x16) // enginespersist
+ | (1 << 0x1B) // multihead
+ | (1 << 0x1D) // lowmemory
+ | (1 << 0x1E); // generalfixes
+
+ _ttdpatch_flags[1] = (0 << 0x07) // moreairports - based on units of noise
+ | ((_patches.mammoth_trains ? 1 : 0) << 0x08) // mammothtrains
+ | (1 << 0x09) // trainrefit
+ | (0 << 0x0B) // subsidiaries
+ | ((_patches.gradual_loading ? 1 : 0) << 0x1C) // gradualloading
+ | (1 << 0x12) // unifiedmaglevmode - set bit 0 mode. Not revelant to OTTD
+ | (1 << 0x13) // unifiedmaglevmode - set bit 1 mode
+ | (1 << 0x14) // bridgespeedlimits
+ | (1 << 0x16) // eternalgame
+ | (1 << 0x17) // newtrains
+ | (1 << 0x18) // newrvs
+ | (1 << 0x19) // newships
+ | (1 << 0x1A) // newplanes
+ | ((_patches.signal_side ? 1 : 0) << 0x1B) // signalsontrafficside
+ | (1 << 0x1C); // electrifiedrailway
+
+ _ttdpatch_flags[2] = (1 << 0x01) // loadallgraphics - obsolote
+ | (1 << 0x03) // semaphores
+ | (0 << 0x0B) // enhancedgui
+ | (0 << 0x0C) // newagerating
+ | ((_patches.build_on_slopes ? 1 : 0) << 0x0D) // buildonslopes
+ | (0 << 0x0F) // planespeed
+ | (0 << 0x10) // moreindustriesperclimate - obsolete
+ | (0 << 0x11) // moretoylandfeatures
+ | (1 << 0x12) // newstations
+ | (0 << 0x13) // tracktypecostdiff
+ | (0 << 0x14) // manualconvert
+ | ((_patches.build_on_slopes ? 1 : 0) << 0x15) // buildoncoasts
+ | (1 << 0x16) // canals
+ | (1 << 0x17) // newstartyear
+ | (0 << 0x18) // freighttrains
+ | (0 << 0x19) // newhouses
+ | (1 << 0x1A) // newbridges
+ | (0 << 0x1B) // newtownnames
+ | (0 << 0x1C) // moreanimations
+ | ((_patches.wagon_speed_limits ? 1 : 0) << 0x1D) // wagonspeedlimits
+ | (1 << 0x1E) // newshistory
+ | (0 << 0x1F); // custombridgeheads
+
+ _ttdpatch_flags[3] = (0 << 0x00) // newcargodistribution
+ | (1 << 0x01) // windowsnap
+ | (0 << 0x02) // townbuildnoroad
+ | (0 << 0x03) // pathbasedsignalling. To enable if ever pbs is back
+ | (0 << 0x04) // aichoosechance
+ | (1 << 0x05) // resolutionwidth
+ | (1 << 0x06) // resolutionheight
+ | (0 << 0x07) // newindustries
+ | (0 << 0x08) // fifoloading
+ | (0 << 0x09) // townroadbranchprob
+ | (0 << 0x0A) // tempsnowline
+ | (0 << 0x0B) // newcargo
+ | (1 << 0x0C) // enhancemultiplayer
+ | (1 << 0x0D) // onewayroads
+ | ((_patches.nonuniform_stations ? 1 : 0) << 0x0E) // irregularstations
+ | (1 << 0x0F) // statistics
+ | (1 << 0x10) // newsounds
+ | (1 << 0x11) // autoreplace
+ | (1 << 0x12) // autoslope
+ | (0 << 0x13) // followvehicle
+ | (0 << 0x14) // trams
+ | (0 << 0x15) // enhancetunnels
+ | (0 << 0x16) // shortrvs
+ | (0 << 0x17); // articulatedrvs
+}
+
+static void ResetCustomStations(void)
+{
+ StationSpec *statspec;
+ GRFFile *file;
+ uint i;
+ uint t;
+
+ for (file = _first_grffile; file != NULL; file = file->next) {
+ if (file->stations == NULL) continue;
+ for (i = 0; i < MAX_STATIONS; i++) {
+ if (file->stations[i] == NULL) continue;
+ statspec = file->stations[i];
+
+ /* Release renderdata, if it wasn't copied from another custom station spec */
+ if (!statspec->copied_renderdata) {
+ for (t = 0; t < statspec->tiles; t++) {
+ free((void*)statspec->renderdata[t].seq);
+ }
+ free(statspec->renderdata);
+ }
+
+ /* Release platforms and layouts */
+ if (!statspec->copied_layouts) {
+ uint l, p;
+ for (l = 0; l < statspec->lengths; l++) {
+ for (p = 0; p < statspec->platforms[l]; p++) {
+ free(statspec->layouts[l][p]);
+ }
+ free(statspec->layouts[l]);
+ }
+ free(statspec->layouts);
+ free(statspec->platforms);
+ }
+
+ /* Release this station */
+ free(statspec);
+ }
+
+ /* Free and reset the station data */
+ free(file->stations);
+ file->stations = NULL;
+ }
+}
+
+static void ResetNewGRF(void)
+{
+ GRFFile *f, *next;
+
+ for (f = _first_grffile; f != NULL; f = next) {
+ next = f->next;
+
+ free(f->filename);
+ free(f);
+ }
+
+ _first_grffile = NULL;
+ _cur_grffile = NULL;
+}
+
+/**
+ * Reset all NewGRF loaded data
+ * TODO
+ */
+static void ResetNewGRFData(void)
+{
+ uint i;
+
+ CleanUpStrings();
+
+ // Copy/reset original engine info data
+ memcpy(&_engine_info, &orig_engine_info, sizeof(orig_engine_info));
+ memcpy(&_rail_vehicle_info, &orig_rail_vehicle_info, sizeof(orig_rail_vehicle_info));
+ memcpy(&_ship_vehicle_info, &orig_ship_vehicle_info, sizeof(orig_ship_vehicle_info));
+ memcpy(&_aircraft_vehicle_info, &orig_aircraft_vehicle_info, sizeof(orig_aircraft_vehicle_info));
+ memcpy(&_road_vehicle_info, &orig_road_vehicle_info, sizeof(orig_road_vehicle_info));
+
+ // Copy/reset original bridge info data
+ // First, free sprite table data
+ for (i = 0; i < MAX_BRIDGES; i++) {
+ if (_bridge[i].sprite_table != NULL) {
+ uint j;
+
+ for (j = 0; j < 7; j++) free(_bridge[i].sprite_table[j]);
+ free(_bridge[i].sprite_table);
+ }
+ }
+ memcpy(&_bridge, &orig_bridge, sizeof(_bridge));
+
+ // Reset refit/cargo class data
+ memset(&cargo_allowed, 0, sizeof(cargo_allowed));
+ memset(&cargo_disallowed, 0, sizeof(cargo_disallowed));
+
+ // Reset GRM reservations
+ memset(&_grm_engines, 0, sizeof(_grm_engines));
+
+ // Unload sprite group data
+ UnloadWagonOverrides();
+ UnloadRotorOverrideSprites();
+ UnloadCustomEngineSprites();
+ UnloadCustomEngineNames();
+ ResetEngineListOrder();
+
+ // Reset price base data
+ ResetPriceBaseMultipliers();
+
+ /* Reset the curencies array */
+ ResetCurrencies();
+
+ // Reset station classes
+ ResetStationClasses();
+ ResetCustomStations();
+
+ /* Reset NewGRF files */
+ ResetNewGRF();
+
+ // Add engine type to engine data. This is needed for the refit precalculation.
+ AddTypeToEngines();
+
+ /* Reset misc GRF features and train list display variables */
+ _misc_grf_features = 0;
+ _traininfo_vehicle_pitch = 0;
+ _traininfo_vehicle_width = 29;
+ _have_2cc = false;
+ _signal_base = 0;
+ _coast_base = 0;
+
+ InitializeSoundPool();
+ InitializeSpriteGroupPool();
+}
+
+/** Reset all NewGRFData that was used only while processing data */
+static void ClearTemporaryNewGRFData(void)
+{
+ /* Clear the GOTO labels used for GRF processing */
+ GRFLabel *l;
+ for (l = _cur_grffile->label; l != NULL;) {
+ GRFLabel *l2 = l->next;
+ free(l);
+ l = l2;
+ }
+ _cur_grffile->label = NULL;
+
+ /* Clear the list of spritegroups */
+ free(_cur_grffile->spritegroups);
+ _cur_grffile->spritegroups = NULL;
+ _cur_grffile->spritegroups_count = 0;
+}
+
+static void InitNewGRFFile(const GRFConfig *config, int sprite_offset)
+{
+ GRFFile *newfile;
+
+ newfile = GetFileByFilename(config->filename);
+ if (newfile != NULL) {
+ /* We already loaded it once. */
+ newfile->sprite_offset = sprite_offset;
+ _cur_grffile = newfile;
+ return;
+ }
+
+ newfile = calloc(1, sizeof(*newfile));
+
+ if (newfile == NULL) error ("Out of memory");
+
+ newfile->filename = strdup(config->filename);
+ newfile->sprite_offset = sprite_offset;
+
+ /* Copy the initial parameter list */
+ assert(lengthof(newfile->param) == lengthof(config->param) && lengthof(config->param) == 0x80);
+ newfile->param_end = config->num_params;
+ memcpy(newfile->param, config->param, sizeof(newfile->param));
+
+ if (_first_grffile == NULL) {
+ _cur_grffile = newfile;
+ _first_grffile = newfile;
+ } else {
+ _cur_grffile->next = newfile;
+ _cur_grffile = newfile;
+ }
+}
+
+
+/** Bitmasked values of what type of cargo is refittable for the given vehicle-type.
+ * This coupled with the landscape information (_landscape_global_cargo_mask) gives
+ * us exactly what is refittable and what is not */
+#define MC(cargo) (1 << cargo)
+static const uint32 _default_refitmasks[NUM_VEHICLE_TYPES] = {
+ /* Trains */
+ MC(GC_PASSENGERS) | MC(GC_COAL) | MC(GC_MAIL) | MC(GC_LIVESTOCK) | MC(GC_GOODS) | MC(GC_GRAIN) | MC(GC_WOOD) | MC(GC_IRON_ORE) |
+ MC(GC_STEEL) | MC(GC_VALUABLES) | MC(GC_PAPER) | MC(GC_FOOD) | MC(GC_FRUIT) | MC(GC_COPPER_ORE) | MC(GC_WATER) | MC(GC_SUGAR) |
+ MC(GC_TOYS) | MC(GC_CANDY) | MC(GC_TOFFEE) | MC(GC_COLA) | MC(GC_COTTON_CANDY) | MC(GC_BUBBLES) | MC(GC_PLASTIC) | MC(GC_FIZZY_DRINKS),
+ /* Road vehicles (not refittable by default) */
+ 0,
+ /* Ships */
+ MC(GC_COAL) | MC(GC_MAIL) | MC(GC_LIVESTOCK) | MC(GC_GOODS) | MC(GC_GRAIN) | MC(GC_WOOD) | MC(GC_IRON_ORE) | MC(GC_STEEL) | MC(GC_VALUABLES) |
+ MC(GC_PAPER) | MC(GC_FOOD) | MC(GC_FRUIT) | MC(GC_COPPER_ORE) | MC(GC_WATER) | MC(GC_RUBBER) | MC(GC_SUGAR) | MC(GC_TOYS) | MC(GC_BATTERIES) |
+ MC(GC_CANDY) | MC(GC_TOFFEE) | MC(GC_COLA) | MC(GC_COTTON_CANDY) | MC(GC_BUBBLES) | MC(GC_PLASTIC) | MC(GC_FIZZY_DRINKS),
+ /* Aircraft */
+ MC(GC_PASSENGERS) | MC(GC_MAIL) | MC(GC_GOODS) | MC(GC_VALUABLES) | MC(GC_FOOD) | MC(GC_FRUIT) | MC(GC_SUGAR) | MC(GC_TOYS) |
+ MC(GC_BATTERIES) | MC(GC_CANDY) | MC(GC_TOFFEE) | MC(GC_COLA) | MC(GC_COTTON_CANDY) | MC(GC_BUBBLES) | MC(GC_PLASTIC) | MC(GC_FIZZY_DRINKS),
+ /* Special/Disaster */
+ 0,0
+};
+#undef MC
+
+
+/**
+ * Precalculate refit masks from cargo classes for all vehicles.
+ */
+static void CalculateRefitMasks(void)
+{
+ EngineID engine;
+
+ for (engine = 0; engine < TOTAL_NUM_ENGINES; engine++) {
+ uint32 mask = 0;
+ uint32 not_mask = 0;
+ uint32 xor_mask = _engine_info[engine].refit_mask;
+ byte i;
+
+ if (cargo_allowed[engine] != 0) {
+ // Build up the list of cargo types from the set cargo classes.
+ for (i = 0; i < lengthof(cargo_classes); i++) {
+ if (HASBIT(cargo_allowed[engine], i)) mask |= cargo_classes[i];
+ if (HASBIT(cargo_disallowed[engine], i)) not_mask |= cargo_classes[i];
+ }
+ } else {
+ // Don't apply default refit mask to wagons or engines with no capacity
+ if (xor_mask == 0 && (
+ GetEngine(engine)->type != VEH_Train || (
+ RailVehInfo(engine)->capacity != 0 &&
+ !(RailVehInfo(engine)->flags & RVI_WAGON)
+ )
+ )) {
+ xor_mask = _default_refitmasks[GetEngine(engine)->type - VEH_Train];
+ }
+ }
+ _engine_info[engine].refit_mask = ((mask & ~not_mask) ^ xor_mask) & _landscape_global_cargo_mask[_opt.landscape];
+ }
+}
+
+/* Here we perform initial decoding of some special sprites (as are they
+ * described at http://www.ttdpatch.net/src/newgrf.txt, but this is only a very
+ * partial implementation yet). */
+/* XXX: We consider GRF files trusted. It would be trivial to exploit OTTD by
+ * a crafted invalid GRF file. We should tell that to the user somehow, or
+ * better make this more robust in the future. */
+static void DecodeSpecialSprite(uint num, GrfLoadingStage stage)
+{
+ /* XXX: There is a difference between staged loading in TTDPatch and
+ * here. In TTDPatch, for some reason actions 1 and 2 are carried out
+ * during stage 1, whilst action 3 is carried out during stage 2 (to
+ * "resolve" cargo IDs... wtf). This is a little problem, because cargo
+ * IDs are valid only within a given set (action 1) block, and may be
+ * overwritten after action 3 associates them. But overwriting happens
+ * in an earlier stage than associating, so... We just process actions
+ * 1 and 2 in stage 2 now, let's hope that won't get us into problems.
+ * --pasky */
+ /* We need a pre-stage to set up GOTO labels of Action 0x10 because the grf
+ * is not in memory and scanning the file every time would be too expensive.
+ * In other stages we skip action 0x10 since it's already dealt with. */
+ static const SpecialSpriteHandler handlers[][GLS_END] = {
+ /* 0x00 */ { NULL, GRFUnsafe, NULL, NULL, FeatureChangeInfo, },
+ /* 0x01 */ { NULL, GRFUnsafe, NULL, NULL, NewSpriteSet, },
+ /* 0x02 */ { NULL, GRFUnsafe, NULL, NULL, NewSpriteGroup, },
+ /* 0x03 */ { NULL, GRFUnsafe, NULL, NULL, FeatureMapSpriteGroup, },
+ /* 0x04 */ { NULL, NULL, NULL, NULL, FeatureNewName, },
+ /* 0x05 */ { NULL, NULL, NULL, NULL, GraphicsNew, },
+ /* 0x06 */ { NULL, NULL, NULL, CfgApply, CfgApply, },
+ /* 0x07 */ { NULL, NULL, NULL, NULL, SkipIf, },
+ /* 0x08 */ { ScanInfo, SafeInfo, NULL, GRFInfo, GRFInfo, },
+ /* 0x09 */ { NULL, NULL, NULL, SkipIf, SkipIf, },
+ /* 0x0A */ { NULL, NULL, NULL, NULL, SpriteReplace, },
+ /* 0x0B */ { NULL, NULL, NULL, GRFError, GRFError, },
+ /* 0x0C */ { NULL, NULL, NULL, GRFComment, GRFComment, },
+ /* 0x0D */ { NULL, GRFUnsafe, NULL, ParamSet, ParamSet, },
+ /* 0x0E */ { NULL, GRFUnsafe, NULL, GRFInhibit, GRFInhibit, },
+ /* 0x0F */ { NULL, NULL, NULL, NULL, NULL, },
+ /* 0x10 */ { NULL, NULL, DefineGotoLabel, NULL, NULL, },
+ /* 0x11 */ { NULL, GRFUnsafe, NULL, NULL, GRFSound, },
+ /* 0x12 */ { NULL, NULL, NULL, NULL, LoadFontGlyph, },
+ };
+
+ byte* buf;
+ byte action;
+
+ if (_preload_sprite == NULL) {
+ /* No preloaded sprite to work with; allocate and read the
+ * pseudo sprite content. */
+ buf = malloc(num);
+ if (buf == NULL) error("DecodeSpecialSprite: Could not allocate memory");
+ FioReadBlock(buf, num);
+ } else {
+ /* Use the preloaded sprite data. */
+ buf = _preload_sprite;
+ _preload_sprite = NULL;
+ grfmsg(7, "DecodeSpecialSprite: Using preloaded pseudo sprite data");
+
+ /* Skip the real (original) content of this action. */
+ FioSeekTo(num, SEEK_CUR);
+ }
+
+ action = buf[0];
+
+ if (action == 0xFF) {
+ grfmsg(7, "Handling data block in stage %d", stage);
+ GRFDataBlock(buf, num);
+ } else if (action == 0xFE) {
+ grfmsg(7, "Handling import block in stage %d", stage);
+ GRFImportBlock(buf, num);
+ } else if (action >= lengthof(handlers)) {
+ grfmsg(7, "Skipping unknown action 0x%02X", action);
+ } else if (handlers[action][stage] == NULL) {
+ grfmsg(7, "Skipping action 0x%02X in stage %d", action, stage);
+ } else {
+ grfmsg(7, "Handling action 0x%02X in stage %d", action, stage);
+ handlers[action][stage](buf, num);
+ }
+ free(buf);
+}
+
+
+void LoadNewGRFFile(GRFConfig *config, uint file_index, GrfLoadingStage stage)
+{
+ const char *filename = config->filename;
+ uint16 num;
+
+ /* A .grf file is activated only if it was active when the game was
+ * started. If a game is loaded, only its active .grfs will be
+ * reactivated, unless "loadallgraphics on" is used. A .grf file is
+ * considered active if its action 8 has been processed, i.e. its
+ * action 8 hasn't been skipped using an action 7.
+ *
+ * During activation, only actions 0, 1, 2, 3, 4, 5, 7, 8, 9, 0A and 0B are
+ * carried out. All others are ignored, because they only need to be
+ * processed once at initialization. */
+ if (stage != GLS_FILESCAN && stage != GLS_SAFETYSCAN && stage != GLS_LABELSCAN) {
+ _cur_grffile = GetFileByFilename(filename);
+ if (_cur_grffile == NULL) error("File '%s' lost in cache.\n", filename);
+ if (stage == GLS_ACTIVATION && !HASBIT(config->flags, GCF_ACTIVATED)) return;
+ }
+
+ FioOpenFile(file_index, filename);
+ _file_index = file_index; // XXX
+
+ _cur_grfconfig = config;
+
+ DEBUG(grf, 2, "Reading NewGRF-file '%s'", filename);
+
+ /* Skip the first sprite; we don't care about how many sprites this
+ * does contain; newest TTDPatches and George's longvehicles don't
+ * neither, apparently. */
+ if (FioReadWord() == 4 && FioReadByte() == 0xFF) {
+ FioReadDword();
+ } else {
+ DEBUG(grf, 7, "Custom .grf has invalid format");
+ return;
+ }
+
+ _skip_sprites = 0; // XXX
+ _nfo_line = 0;
+
+ while ((num = FioReadWord()) != 0) {
+ byte type = FioReadByte();
+ _nfo_line++;
+
+ if (type == 0xFF) {
+ if (_skip_sprites == 0) {
+ DecodeSpecialSprite(num, stage);
+
+ /* Stop all processing if we are to skip the remaining sprites */
+ if (_skip_sprites == -1) break;
+
+ continue;
+ } else {
+ FioSkipBytes(num);
+ }
+ } else {
+ if (_skip_sprites == 0) grfmsg(7, "Skipping unexpected sprite");
+
+ FioSkipBytes(7);
+ num -= 8;
+
+ if (type & 2) {
+ FioSkipBytes(num);
+ } else {
+ while (num > 0) {
+ int8 i = FioReadByte();
+ if (i >= 0) {
+ num -= i;
+ FioSkipBytes(i);
+ } else {
+ i = -(i >> 3);
+ num -= i;
+ FioReadByte();
+ }
+ }
+ }
+ }
+
+ if (_skip_sprites > 0) _skip_sprites--;
+ }
+}
+
+
+void LoadNewGRF(uint load_index, uint file_index)
+{
+ GrfLoadingStage stage;
+
+ InitializeGRFSpecial();
+
+ ResetNewGRFData();
+
+ /* Load newgrf sprites
+ * in each loading stage, (try to) open each file specified in the config
+ * and load information from it. */
+ for (stage = GLS_LABELSCAN; stage <= GLS_ACTIVATION; stage++) {
+ uint slot = file_index;
+ GRFConfig *c;
+
+ _cur_stage = stage;
+ _cur_spriteid = load_index;
+ for (c = _grfconfig; c != NULL; c = c->next) {
+ if (HASBIT(c->flags, GCF_DISABLED) || HASBIT(c->flags, GCF_NOT_FOUND)) continue;
+
+ // TODO usererror()
+ if (!FioCheckFileExists(c->filename)) error("NewGRF file is missing '%s'", c->filename);
+
+ if (stage == GLS_LABELSCAN) InitNewGRFFile(c, _cur_spriteid);
+ LoadNewGRFFile(c, slot++, stage);
+ if (stage == GLS_ACTIVATION) ClearTemporaryNewGRFData();
+ DEBUG(sprite, 2, "Currently %i sprites are loaded", load_index);
+ }
+ }
+
+ // Pre-calculate all refit masks after loading GRF files
+ CalculateRefitMasks();
+}
+
+
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