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Location: cpp/openttd-patchpack/source/src/newgrf.cpp
r5974:e11b6f5200f9
112.5 KiB
text/x-c
(svn r8671) -Fix
Fix some strings which were broken in r7581
Fix some strings which were broken in r7581
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3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 | /* $Id$ */
#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"
#include "helpers.hpp"
/* 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 bool check_length(int real, int wanted, const char *str)
{
if (real >= wanted) return true;
grfmsg(0, "%s: Invalid pseudo sprite length %d (expected %d)!", str, real, wanted);
return false;
}
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->railveh_type = RAILVEH_SINGLEHEAD;
} else {
ei->unk2 |= 0x80;
rvi->railveh_type = RAILVEH_WAGON;
}
}
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: rvi[i].railtype = rvi[i].engclass == 2 ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL; break;
case 1: rvi[i].railtype = RAILTYPE_MONO; break;
case 2: rvi[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].railveh_type == RAILVEH_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].railveh_type == RAILVEH_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].railveh_type != RAILVEH_MULTIHEAD) {
// adjust power and running cost if needed
rvi[i].power /= 2;
rvi[i].running_cost_base /= 2;
}
rvi[i].railveh_type = RAILVEH_MULTIHEAD;
} else {
if (rvi[i].railveh_type == RAILVEH_MULTIHEAD) {
// adjust power and running cost if needed
rvi[i].power *= 2;
rvi[i].running_cost_base *= 2;
}
rvi[i].railveh_type = rvi[i].power == 0 ?
RAILVEH_WAGON : RAILVEH_SINGLEHEAD;
}
}
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 (rvi[i].railtype == RAILTYPE_RAIL && engclass == 2) rvi[i].railtype = RAILTYPE_ELECTRIC;
if (rvi[i].railtype == RAILTYPE_ELECTRIC && engclass != 2) rvi[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 = (SoundFx)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) != 0);
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 = (SoundFx)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 = AIR_HELI;
} else {
SB(avi[i].subtype, 0, 1, 1); // AIR_CTOL
}
}
break;
case 0x0A: /* Large */
FOR_EACH_OBJECT SB(avi[i].subtype, 1, 1, (grf_load_byte(&buf) != 0 ? 1 : 0)); // AIR_FAST
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 = (SoundFx)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 = CallocT<StationSpec*>(MAX_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] = CallocT<StationSpec>(1);
/* 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 = CallocT<DrawTileSprites>(statspec->tiles);
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_word(&buf);
dts->ground_pal = grf_load_word(&buf);
if (dts->ground_sprite == 0) continue;
if (HASBIT(dts->ground_pal, 15)) {
CLRBIT(dts->ground_pal, 15);
SETBIT(dts->ground_sprite, SPRITE_MODIFIER_USE_OFFSET);
}
while (buf < *bufp + len) {
DrawTileSeqStruct *dtss;
// no relative bounding box support
dts->seq = ReallocT((DrawTileSeqStruct*)dts->seq, ++seq_count);
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_word(&buf);
dtss->pal = grf_load_word(&buf);
/* Remap flags as ours collide */
if (HASBIT(dtss->pal, 15)) {
CLRBIT(dtss->pal, 15);
SETBIT(dtss->image, SPRITE_MODIFIER_USE_OFFSET);
}
if (HASBIT(dtss->image, 15)) {
CLRBIT(dtss->image, 15);
SETBIT(dtss->image, PALETTE_MODIFIER_COLOR);
}
if (HASBIT(dtss->image, 14)) {
CLRBIT(dtss->image, 14);
SETBIT(dtss->image, PALETTE_MODIFIER_TRANSPARENT);
}
}
}
}
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 = ReallocT(statspec->platforms, length);
memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths);
statspec->layouts = ReallocT(statspec->layouts, length);
memset(statspec->layouts + statspec->lengths, 0,
(length - statspec->lengths) * sizeof(*statspec->layouts));
statspec->lengths = length;
}
l = length - 1; // index is zero-based
//debug("p %d > %d ?", number, stat->platforms[l]);
if (number > statspec->platforms[l]) {
statspec->layouts[l] = ReallocT(statspec->layouts[l], number);
// We expect NULL being 0 here, but C99 guarantees that.
memset(statspec->layouts[l] + statspec->platforms[l], 0,
(number - statspec->platforms[l]) * sizeof(**statspec->layouts));
statspec->platforms[l] = number;
}
p = 0;
layout = MallocT<byte>(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;
case 0x16: /* TODO Animation info */
FOR_EACH_OBJECT grf_load_word(&buf);
ret = true;
break;
case 0x17: /* TODO Animation speed */
FOR_EACH_OBJECT grf_load_byte(&buf);
ret = true;
break;
case 0x18: /* TODO Animation triggers */
FOR_EACH_OBJECT grf_load_word(&buf);
ret = true;
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 = CallocT<PalSpriteID*>(7);
}
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] = MallocT<PalSpriteID>(32);
}
for (sprite = 0; sprite < 32; sprite++) {
SpriteID image = grf_load_word(&buf);
SpriteID pal = grf_load_word(&buf);
if (HASBIT(pal, 15)) {
SETBIT(image, PALETTE_MODIFIER_TRANSPARENT);
}
/* Clear old color modifer bit */
CLRBIT(image, 15);
bridge->sprite_table[tableid][sprite].sprite = image;
bridge->sprite_table[tableid][sprite].pal = pal;
}
}
}
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;
}
if (!check_length(len, 6, "FeatureChangeInfo")) return;
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);
}
}
/* Action 0x00 (GLS_SAFETYSCAN) */
static void SafeChangeInfo(byte *buf, int len)
{
uint8 feature;
uint8 numprops;
uint8 numinfo;
uint8 index;
if (!check_length(len, 6, "SafeChangeInfo")) return;
buf++;
feature = grf_load_byte(&buf);
numprops = grf_load_byte(&buf);
numinfo = grf_load_byte(&buf);
index = grf_load_byte(&buf);
if (feature == GSF_BRIDGE && numprops == 1) {
uint8 prop = grf_load_byte(&buf);
/* Bridge property 0x0D is redefinition of sprite layout tables, which
* is considered safe. */
if (prop == 0x0D) return;
}
SETBIT(_cur_grfconfig->flags, GCF_UNSAFE);
/* Skip remainder of GRF */
_skip_sprites = -1;
}
#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;
if (!check_length(len, 4, "NewSpriteSet")) return;
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;
if (!check_length(len, 5, "NewSpriteGroup")) return;
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 = ReallocT(_cur_grffile->spritegroups, setid + 1);
// 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 */
if (!check_length(bufend - buf, 1, "NewSpriteGroup (Deterministic) (1)")) return;
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;
}
if (!check_length(bufend - buf, 5 + varsize, "NewSpriteGroup (Deterministic) (2)")) return;
/* 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) {
if (!check_length(bufend - buf, 2 + varsize + 3, "NewSpriteGroup (Deterministic) (3)")) return;
}
group->g.determ.num_adjusts++;
group->g.determ.adjusts = ReallocT(group->g.determ.adjusts, group->g.determ.num_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 : (DeterministicSpriteGroupAdjustOperation)grf_load_byte(&buf);
adjust->variable = grf_load_byte(&buf);
if (adjust->variable == 0x7E) {
/* Link subroutine group */
adjust->subroutine = GetGroupFromGroupID(setid, type, grf_load_byte(&buf));
} else {
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 = (DeterministicSpriteGroupAdjustType)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 = CallocT<DeterministicSpriteGroupRange>(group->g.determ.num_ranges);
if (!check_length(bufend - buf, 2 + (2 + 2 * varsize) * group->g.determ.num_ranges, "NewSpriteGroup (Deterministic)")) return;
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;
if (!check_length(bufend - buf, 7, "NewSpriteGroup (Randomized) (1)")) return;
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 = CallocT<const SpriteGroup*>(group->g.random.num_groups);
if (!check_length(bufend - buf, 2 * group->g.random.num_groups, "NewSpriteGroup (Randomized) (2)")) return;
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;
}
if (!check_length(bufend - buf, 2 * num_loaded + 2 * num_loading, "NewSpriteGroup (Real) (1)")) return;
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 = CallocT<const SpriteGroup*>(num_loaded);
if (num_loading > 0) group->g.real.loading = CallocT<const SpriteGroup*>(num_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;
if (!check_length(len, 6, "FeatureMapSpriteGroup")) return;
feature = buf[1];
idcount = buf[2] & 0x7F;
wagover = (buf[2] & 0x80) == 0x80;
if (!check_length(len, 3 + idcount, "FeatureMapSpriteGroup")) return;
/* 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];
if (!check_length(len, 4 + idcount + cidcount * 3, "FeatureMapSpriteGroup")) return;
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 = ReallocT(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;
if (!check_length(len, 6, "FeatureNewName")) return;
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;
if (!check_length(len, 2, "GraphicsNew")) return;
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 UINT_MAX;
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 UINT_MAX;
}
}
/* 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 = MallocT<byte>(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;
if (!check_length(len, 6, "SkipIf")) return;
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_FILESCAN) */
static void ScanInfo(byte *buf, int len)
{
uint8 version;
uint32 grfid;
const char *name;
const char *info;
int name_len;
int info_len;
if (!check_length(len, 8, "Info")) return; 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);
}
/* 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;
if (!check_length(len, 8, "GRFInfo")) return; 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;
if (!check_length(len, 6, "GRFError")) return;
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 (GLS_SAFETYSCAN) */
static void SafeParamSet(byte *buf, int len)
{
uint8 target;
if (!check_length(len, 5, "SafeParamSet")) return;
buf++;
target = grf_load_byte(&buf);
/* Only writing GRF parameters is considered safe */
if (target < 0x80) return;
/* GRM could be unsafe, but as here it can only happen after other GRFs
* are loaded, it should be okay. If the GRF tried to use the slots it
* reserved, it would be marked unsafe anyway. GRM for (e.g. bridge)
* sprites is considered safe. */
SETBIT(_cur_grfconfig->flags, GCF_UNSAFE);
/* Skip remainder of GRF */
_skip_sprites = -1;
}
/* 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;
if (!check_length(len, 5, "ParamSet")) return;
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 = UINT_MAX;
}
break;
}
case 0x08: /* General sprites */
switch (op) {
case 0:
/* Check if the allocated sprites will fit below the original sprite limit */
if (_cur_spriteid + count >= 16384) {
grfmsg(0, "GRM: Unable to allocate %d sprites; try changing NewGRF order", count);
SETBIT(_cur_grfconfig->flags, GCF_DISABLED);
CLRBIT(_cur_grfconfig->flags, GCF_ACTIVATED);
_skip_sprites = -1;
return;
}
/* '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 (GLS_SAFETYSCAN) */
static void SafeGRFInhibit(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;
if (!check_length(len, 1, "GRFInhibit")) return;
buf++, len--;
num = grf_load_byte(&buf); len--;
if (!check_length(len, 4 * num, "GRFInhibit")) return;
for (i = 0; i < num; i++) {
uint32 grfid = grf_load_dword(&buf);
/* GRF is unsafe it if tries to deactivate other GRFs */
if (grfid != _cur_grfconfig->grfid) {
SETBIT(_cur_grfconfig->flags, GCF_UNSAFE);
/* Skip remainder of GRF */
_skip_sprites = -1;
return;
}
}
}
/* 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;
if (!check_length(len, 1, "GRFInhibit")) return;
buf++, len--;
num = grf_load_byte(&buf); len--;
if (!check_length(len, 4 * num, "GRFInhibit")) return;
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;
if (!check_length(len, 1, "DefineGotoLabel")) return;
buf++; len--;
label = MallocT<GRFLabel>(1);
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;
if (!check_length(len, 1, "GRFSound")) return;
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--;
if (!check_length(len, 1, "LoadFontGlyph")) return;
num_def = grf_load_byte(&buf);
if (!check_length(len, 1 + num_def * 4, "LoadFontGlyph")) return;
for (i = 0; i < num_def; i++) {
FontSize size = (FontSize)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 */
_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) << 0x0C) // 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 = CallocT<GRFFile>(1);
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)->railveh_type != RAILVEH_WAGON
)
)) {
xor_mask = _default_refitmasks[GetEngine(engine)->type];
}
}
_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, SafeChangeInfo, 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, NULL, 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, SafeParamSet, NULL, ParamSet, ParamSet, },
/* 0x0E */ { NULL, SafeGRFInhibit, 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 = MallocT<byte>(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 InitDepotWindowBlockSizes(void);
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", _cur_spriteid);
}
}
}
// Pre-calculate all refit masks after loading GRF files
CalculateRefitMasks();
/* Set the block size in the depot windows based on vehicle sprite sizes */
InitDepotWindowBlockSizes();
}
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