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/* $Id$ */

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#include "stdafx.h"

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#include <stdarg.h>

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#include "openttd.h"

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#include "debug.h"

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#include "gfx.h"

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#include "fileio.h"

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#include "functions.h"

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#include "engine.h"

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#include "spritecache.h"

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#include "station.h"

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#include "sprite.h"

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#include "newgrf.h"

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#include "variables.h"

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#include "bridge.h"

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#include "economy.h"

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    21

/* TTDPatch extended GRF format codec

    22

 * (c) Petr Baudis 2004 (GPL'd)

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 * Changes by Florian octo Forster are (c) by the OpenTTD development team.

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 *

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 * Contains portions of documentation by TTDPatch team.

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 * Thanks especially to Josef Drexler for the documentation as well as a lot

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 * of help at #tycoon. Also thanks to Michael Blunck for is GRF files which

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 * served as subject to the initial testing of this codec. */

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    30

    31

uint16 _custom_sprites_base;

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static int _skip_sprites; // XXX

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static uint _file_index; // XXX

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extern int _traininfo_vehicle_pitch;

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    36

static GRFFile *_cur_grffile;

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GRFFile *_first_grffile;

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static int _cur_spriteid;

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static int _cur_stage;

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static int nfo_line;

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/* 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */

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static uint32 _ttdpatch_flags[8];

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    45

    46

typedef enum grfspec_feature {

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	GSF_TRAIN,

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	GSF_ROAD,

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	GSF_SHIP,

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	GSF_AIRCRAFT,

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	GSF_STATION,

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	GSF_CANAL,

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	GSF_BRIDGE,

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	GSF_TOWNHOUSE,

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	GSF_GLOBALVAR,

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} grfspec_feature;

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    58

    59

typedef void (*SpecialSpriteHandler)(byte *buf, int len);

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    61

static const int _vehcounts[4] = {

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	/* GSF_TRAIN */    NUM_TRAIN_ENGINES,

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	/* GSF_ROAD */     NUM_ROAD_ENGINES,

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	/* GSF_SHIP */     NUM_SHIP_ENGINES,

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	/* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES

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};

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    68

static const int _vehshifts[4] = {

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	/* GSF_TRAIN */    0,

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	/* GSF_ROAD */     ROAD_ENGINES_INDEX,

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	/* GSF_SHIP */     SHIP_ENGINES_INDEX,

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	/* GSF_AIRCRAFT */ AIRCRAFT_ENGINES_INDEX,

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};

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    75

static uint16 cargo_allowed[TOTAL_NUM_ENGINES];

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static uint16 cargo_disallowed[TOTAL_NUM_ENGINES];

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    78

/* Debugging messages policy:

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 *

    80

 * These should be the severities used for direct DEBUG() calls

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 * (there is room for exceptions, but you have to have a good cause):

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 *

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 * 0..2 - dedicated to grfmsg()

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 * 3

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 * 4

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 * 5

    87

 * 6 - action handler entry reporting - one per action

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 * 7 - basic action progress reporting - in loops, only single one allowed

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 * 8 - more detailed progress reporting - less important stuff, in deep loops etc

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 * 9 - extremely detailed progress reporting - detailed reports inside of deep loops and so

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 */

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    93

    94

typedef enum grfmsg_severity {

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	GMS_NOTICE,

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	GMS_WARN,

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	GMS_ERROR,

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	GMS_FATAL,

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} grfmsg_severity;

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   101

static void CDECL grfmsg(grfmsg_severity severity, const char *str, ...)

   102

{

   103

	static const char* const severitystr[] = {

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		"Notice",

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		"Warning",

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		"Error",

   107

		"Fatal"

   108

	};

   109

	int export_severity = 0;

   110

	char buf[1024];

   111

	va_list va;

   112

   113

	va_start(va, str);

   114

	vsnprintf(buf, sizeof(buf), str, va);

   115

	va_end(va);

   116

   117

	export_severity = 2 - (severity == GMS_FATAL ? 2 : severity);

   118

	DEBUG(grf, export_severity) ("[%s:%d][%s] %s", _cur_grffile->filename, nfo_line, severitystr[severity], buf);

   119

}

   120

   121

   122

#define check_length(real, wanted, where) \

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do { \

   124

	if (real < wanted) { \

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		grfmsg(GMS_ERROR, "%s: Invalid special sprite length %d (expected %d)!", \

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		       where, real, wanted); \

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		return; \

   128

	} \

   129

} while (0)

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   131

   132

static inline byte grf_load_byte(byte **buf)

   133

{

   134

	return *(*buf)++;

   135

}

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   137

static uint16 grf_load_word(byte **buf)

   138

{

   139

	uint16 val;

   140

	byte *p = *buf;

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	val = p[0];

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	val |= p[1] << 8;

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	*buf = p + 2;

   144

	return val;

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}

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   147

static uint16 grf_load_extended(byte** buf)

   148

{

   149

	uint16 val;

   150

	val = grf_load_byte(buf);

   151

	if (val == 0xFF) val = grf_load_word(buf);

   152

	return val;

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}

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   155

static uint32 grf_load_dword(byte **buf)

   156

{

   157

	uint32 val;

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	byte *p = *buf;

   159

	val = p[0];

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	val |= p[1] << 8;

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	val |= p[2] << 16;

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	val |= p[3] << 24;

   163

	*buf = p + 4;

   164

	return val;

   165

}

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   167

   168

static GRFFile *GetFileByGRFID(uint32 grfid)

   169

{

   170

	GRFFile *file;

   171

   172

	for (file = _first_grffile; file != NULL; file = file->next) {

   173

		if (file->grfid == grfid) break;

   174

	}

   175

	return file;

   176

}

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   178

static GRFFile *GetFileByFilename(const char *filename)

   179

{

   180

	GRFFile *file;

   181

   182

	for (file = _first_grffile; file != NULL; file = file->next) {

   183

		if (strcmp(file->filename, filename) == 0) break;

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	}

   185

	return file;

   186

}

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   188

   189

typedef bool (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len);

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   191

#define FOR_EACH_OBJECT for (i = 0; i < numinfo; i++)

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   193

static void dewagonize(int condition, int engine)

   194

{

   195

	EngineInfo *ei = &_engine_info[engine];

   196

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   197

   198

	if (condition != 0) {

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		ei->unk2 &= ~0x80;

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		rvi->flags &= ~2;

   201

	} else {

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		ei->unk2 |= 0x80;

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		rvi->flags |= 2;

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	}

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}

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   207

static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)

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{

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	EngineInfo *ei = &_engine_info[engine];

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	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

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	byte *buf = *bufp;

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	int i;

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	bool ret = false;

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   215

	switch (prop) {

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		case 0x05: { /* Track type */

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			FOR_EACH_OBJECT {

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				uint8 tracktype = grf_load_byte(&buf);

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   220

				ei[i].railtype = tracktype;

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			}

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		} break;

   223

		case 0x08: { /* AI passenger service */

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			/* TODO */

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			FOR_EACH_OBJECT {

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				grf_load_byte(&buf);

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			}

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			ret = true;

   229

		} break;

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		case 0x09: { /* Speed */

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			FOR_EACH_OBJECT {

   232

				uint16 speed = grf_load_word(&buf);

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				if (speed == 0xFFFF)

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					speed = 0;

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   236

				rvi[i].max_speed = speed;

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			}

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		} break;

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		case 0x0B: { /* Power */

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			FOR_EACH_OBJECT {

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				uint16 power = grf_load_word(&buf);

   242

   243

				if (rvi[i].flags & RVI_MULTIHEAD)

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					power /= 2;

   245

   246

				rvi[i].power = power;

   247

				dewagonize(power, engine + i);

   248

			}

   249

		} break;

   250

		case 0x0D: { /* Running cost factor */

   251

			FOR_EACH_OBJECT {

   252

				uint8 runcostfact = grf_load_byte(&buf);

   253

   254

				if (rvi[i].flags & RVI_MULTIHEAD)

   255

					runcostfact /= 2;

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   257

				rvi[i].running_cost_base = runcostfact;

   258

			}

   259

		} break;

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		case 0x0E: { /* Running cost base */

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			FOR_EACH_OBJECT {

   262

				uint32 base = grf_load_dword(&buf);

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   264

				switch (base) {

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					case 0x4C30: rvi[i].running_cost_class = 0; break;

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					case 0x4C36: rvi[i].running_cost_class = 1; break;

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					case 0x4C3C: rvi[i].running_cost_class = 2; break;

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				}

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			}

   270

		} break;

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		case 0x12: { /* Sprite ID */

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			FOR_EACH_OBJECT {

   273

				uint8 spriteid = grf_load_byte(&buf);

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   275

				rvi[i].image_index = spriteid;

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			}

   277

		} break;

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		case 0x13: { /* Dual-headed */

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			FOR_EACH_OBJECT {

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				uint8 dual = grf_load_byte(&buf);

   281

   282

				if (dual != 0) {

   283

					if (!(rvi[i].flags & RVI_MULTIHEAD)) {

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						// adjust power and running cost if needed

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						rvi[i].power /= 2;

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						rvi[i].running_cost_base /= 2;

   287

					}

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					rvi[i].flags |= RVI_MULTIHEAD;

   289

				} else {

   290

					if (rvi[i].flags & RVI_MULTIHEAD) {

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						// adjust power and running cost if needed

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						rvi[i].power *= 2;

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						rvi[i].running_cost_base *= 2;

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					}

   295

					rvi[i].flags &= ~RVI_MULTIHEAD;

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				}

   297

			}

   298

		} break;

   299

		case 0x14: { /* Cargo capacity */

   300

			FOR_EACH_OBJECT {

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				uint8 capacity = grf_load_byte(&buf);

   302

   303

				rvi[i].capacity = capacity;

   304

			}

   305

		} break;

   306

		case 0x15: { /* Cargo type */

   307

			FOR_EACH_OBJECT {

   308

				uint8 ctype = grf_load_byte(&buf);

   309

   310

				if (ctype < NUM_CARGO) {

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					rvi[i].cargo_type = ctype;

   312

				} else {

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					grfmsg(GMS_NOTICE, "RailVehicleChangeInfo: Invalid cargo type %d, ignoring.", ctype);

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				}

   315

			}

   316

		} break;

   317

		case 0x16: { /* Weight */

   318

			FOR_EACH_OBJECT {

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				uint8 weight = grf_load_byte(&buf);

   320

   321

				SB(rvi[i].weight, 0, 8, weight);

   322

			}

   323

		} break;

   324

		case 0x17: { /* Cost factor */

   325

			FOR_EACH_OBJECT {

   326

				uint8 cfactor = grf_load_byte(&buf);

   327

   328

				rvi[i].base_cost = cfactor;

   329

			}

   330

		} break;

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		case 0x18: { /* AI rank */

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			/* TODO: _railveh_score should be merged to _rail_vehicle_info. */

   333

			FOR_EACH_OBJECT {

   334

				grf_load_byte(&buf);

   335

			}

   336

			ret = true;

   337

		} break;

   338

		case 0x19: { /* Engine traction type */

   339

			/* What do the individual numbers mean?

   340

			 * 0x00 .. 0x07: Steam

   341

			 * 0x08 .. 0x27: Diesel

   342

			 * 0x28 .. 0x31: Electric

   343

			 * 0x32 .. 0x37: Monorail

   344

			 * 0x38 .. 0x41: Maglev

   345

			 */

   346

			FOR_EACH_OBJECT {

   347

				uint8 traction = grf_load_byte(&buf);

   348

				int engclass;

   349

   350

				if (traction <= 0x07)

   351

					engclass = 0;

   352

				else if (traction <= 0x27)

   353

					engclass = 1;

   354

				else if (traction <= 0x41)

   355

					engclass = 2;

   356

				else

   357

					break;

   358

   359

				rvi[i].engclass = engclass;

   360

			}

   361

		} break;

   362

		case 0x1B: { /* Powered wagons power bonus */

   363

			FOR_EACH_OBJECT {

   364

				uint16 wag_power = grf_load_word(&buf);

   365

   366

				rvi[i].pow_wag_power = wag_power;

   367

			}

   368

		} break;

   369

		case 0x1D: { /* Refit cargo */

   370

			FOR_EACH_OBJECT {

   371

				uint32 refit_mask = grf_load_dword(&buf);

   372

   373

				_engine_info[engine + i].refit_mask = refit_mask;

   374

			}

   375

		} break;

   376

		case 0x1E: { /* Callback */

   377

			FOR_EACH_OBJECT {

   378

				byte callbacks = grf_load_byte(&buf);

   379

   380

				rvi[i].callbackmask = callbacks;

   381

			}

   382

		} break;

   383

		case 0x21: { /* Shorter vehicle */

   384

			FOR_EACH_OBJECT {

   385

				byte shorten_factor = grf_load_byte(&buf);

   386

   387

				rvi[i].shorten_factor = shorten_factor;

   388

			}

   389

		} break;

   390

		case 0x22: { /* Visual effect */

   391

			// see note in engine.h about rvi->visual_effect

   392

			FOR_EACH_OBJECT {

   393

				byte visual = grf_load_byte(&buf);

   394

   395

				rvi[i].visual_effect = visual;

   396

			}

   397

		} break;

   398

		case 0x23: { /* Powered wagons weight bonus */

   399

			FOR_EACH_OBJECT {

   400

				byte wag_weight = grf_load_byte(&buf);

   401

   402

				rvi[i].pow_wag_weight = wag_weight;

   403

			}

   404

		} break;

   405

		case 0x24: { /* High byte of vehicle weight */

   406

			FOR_EACH_OBJECT {

   407

				byte weight = grf_load_byte(&buf);

   408

   409

				if (weight > 4) {

   410

					grfmsg(GMS_NOTICE, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring.", weight << 8);

   411

				} else {

   412

					SB(rvi[i].weight, 8, 8, weight);

   413

				}

   414

			}

   415

		} break;

   416

		case 0x28: { /* Cargo classes allowed */

   417

			FOR_EACH_OBJECT {

   418

				cargo_allowed[engine + i] = grf_load_word(&buf);

   419

			}

   420

		} break;

   421

		case 0x29: { /* Cargo classes disallowed */

   422

			FOR_EACH_OBJECT {

   423

				cargo_disallowed[engine + i] = grf_load_word(&buf);

   424

			}

   425

		} break;

   426

		/* TODO */

   427

		/* Fall-through for unimplemented one byte long properties. */

   428

		case 0x1A:	/* Sort order */

   429

		case 0x1C:	/* Refit cost */

   430

		case 0x1F:	/* Tractive effort */

   431

		case 0x20:	/* Air drag */

   432

		case 0x25:	/* User-defined bit mask to set when checking veh. var. 42 */

   433

		case 0x26:	/* Retire vehicle early */

   434

			{

   435

			/* TODO */

   436

			FOR_EACH_OBJECT {

   437

				grf_load_byte(&buf);

   438

			}

   439

			ret = true;

   440

		}	break;

   441

		default:

   442

			ret = true;

   443

	}

   444

	*bufp = buf;

   445

	return ret;

   446

}

   447

   448

static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)

   449

{

   450

	RoadVehicleInfo *rvi = &_road_vehicle_info[engine];

   451

	byte *buf = *bufp;

   452

	int i;

   453

	bool ret = false;

   454

   455

	switch (prop) {

   456

		case 0x08: { /* Speed */

   457

			FOR_EACH_OBJECT {

   458

				uint8 speed = grf_load_byte(&buf);

   459

   460

				rvi[i].max_speed = speed; // ?? units

   461

			}

   462

		} break;

   463

		case 0x09: { /* Running cost factor */

   464

			FOR_EACH_OBJECT {

   465

				uint8 runcost = grf_load_byte(&buf);

   466

   467

				rvi[i].running_cost = runcost;

   468

			}

   469

		} break;

   470

		case 0x0A: { /* Running cost base */

   471

			/* TODO: I have no idea. --pasky */

   472

			FOR_EACH_OBJECT {

   473

				grf_load_dword(&buf);

   474

			}

   475

			ret = true;

   476

		} break;

   477

		case 0x0E: { /* Sprite ID */

   478

			FOR_EACH_OBJECT {

   479

				uint8 spriteid = grf_load_byte(&buf);

   480

   481

				if (spriteid == 0xFF)

   482

					spriteid = 0xFD; // cars have different custom id in the GRF file

   483

   484

				rvi[i].image_index = spriteid;

   485

			}

   486

		} break;

   487

		case 0x0F: { /* Cargo capacity */

   488

			FOR_EACH_OBJECT {

   489

				uint16 capacity = grf_load_byte(&buf);

   490

   491

				rvi[i].capacity = capacity;

   492

			}

   493