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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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 *

    25

 * 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

    28

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

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    30

    31

uint16 _custom_sprites_base;

    32

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;

    37

GRFFile *_first_grffile;

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int _grffile_count;

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static int _cur_spriteid;

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static int _cur_stage;

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    42

/* 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,

    56

} 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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};

    67

    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

    76

/* Debugging messages policy:

    77

 *

    78

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

    79

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

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 *

    81

 * 0..2 - dedicated to grfmsg()

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 * 3

    83

 * 4

    84

 * 5

    85

 * 6 - action handler entry reporting - one per action

    86

 * 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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    91

    92

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,

    97

} grfmsg_severity;

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    99

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

   100

{

   101

	static const char* const severitystr[] = {

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		"Notice",

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		"Warning",

   104

		"Error",

   105

		"Fatal"

   106

	};

   107

	int export_severity = 0;

   108

	char buf[1024];

   109

	va_list va;

   110

   111

	va_start(va, str);

   112

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

   113

	va_end(va);

   114

   115

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

   116

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

   117

}

   118

   119

   120

#define check_length(real, wanted, where) \

   121

do { \

   122

	if (real < wanted) { \

   123

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

   124

		       where, _cur_spriteid - _cur_grffile->sprite_offset, real, wanted); \

   125

		return; \

   126

	} \

   127

} while (0)

   128

   129

   130

static inline byte grf_load_byte(byte **buf)

   131

{

   132

	return *(*buf)++;

   133

}

   134

   135

static uint16 grf_load_word(byte **buf)

   136

{

   137

	uint16 val;

   138

	byte *p = *buf;

   139

	val = p[0];

   140

	val |= p[1] << 8;

   141

	*buf = p + 2;

   142

	return val;

   143

}

   144

   145

static uint16 grf_load_extended(byte** buf)

   146

{

   147

	uint16 val;

   148

	val = grf_load_byte(buf);

   149

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

   150

	return val;

   151

}

   152

   153

static uint32 grf_load_dword(byte **buf)

   154

{

   155

	uint32 val;

   156

	byte *p = *buf;

   157

	val = p[0];

   158

	val |= p[1] << 8;

   159

	val |= p[2] << 16;

   160

	val |= p[3] << 24;

   161

	*buf = p + 4;

   162

	return val;

   163

}

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   165

   166

static GRFFile *GetFileByGRFID(uint32 grfid)

   167

{

   168

	GRFFile *file;

   169

   170

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

   171

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

   172

	}

   173

	return file;

   174

}

   175

   176

static GRFFile *GetFileByFilename(const char *filename)

   177

{

   178

	GRFFile *file;

   179

   180

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

   181

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

   182

	}

   183

	return file;

   184

}

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   186

   187

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

   188

   189

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

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   191

static void dewagonize(int condition, int engine)

   192

{

   193

	EngineInfo *ei = &_engine_info[engine];

   194

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   195

   196

	if (condition != 0) {

   197

		ei->unk2 &= ~0x80;

   198

		rvi->flags &= ~2;

   199

	} else {

   200

		ei->unk2 |= 0x80;

   201

		rvi->flags |= 2;

   202

	}

   203

}

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   205

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

   206

{

   207

	EngineInfo *ei = &_engine_info[engine];

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	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

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	byte *buf = *bufp;

   210

	int i;

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	bool ret = false;

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   213

	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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   218

				ei[i].railtype = tracktype;

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			}

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		} break;

   221

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

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			/* TODO */

   223

			FOR_EACH_OBJECT {

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				grf_load_byte(&buf);

   225

			}

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			ret = true;

   227

		} break;

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		case 0x09: { /* Speed */

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			FOR_EACH_OBJECT {

   230

				uint16 speed = grf_load_word(&buf);

   231

				if (speed == 0xFFFF)

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					speed = 0;

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   234

				rvi[i].max_speed = speed;

   235

			}

   236

		} break;

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		case 0x0B: { /* Power */

   238

			FOR_EACH_OBJECT {

   239

				uint16 power = grf_load_word(&buf);

   240

   241

				if (rvi[i].flags & RVI_MULTIHEAD)

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					power /= 2;

   243

   244

				rvi[i].power = power;

   245

				dewagonize(power, engine + i);

   246

			}

   247

		} break;

   248

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

   249

			FOR_EACH_OBJECT {

   250

				uint8 runcostfact = grf_load_byte(&buf);

   251

   252

				rvi[i].running_cost_base = runcostfact;

   253

				dewagonize(runcostfact, engine + i);

   254

			}

   255

		} break;

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

   257

			FOR_EACH_OBJECT {

   258

				uint32 base = grf_load_dword(&buf);

   259

   260

				switch (base) {

   261

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

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

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

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				}

   265

				dewagonize(base, engine + i);

   266

			}

   267

		} break;

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		case 0x12: { /* Sprite ID */

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			FOR_EACH_OBJECT {

   270

				uint8 spriteid = grf_load_byte(&buf);

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   272

				rvi[i].image_index = spriteid;

   273

			}

   274

		} break;

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

   276

			FOR_EACH_OBJECT {

   277

				uint8 dual = grf_load_byte(&buf);

   278

   279

				if (dual != 0) {

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					if (!(rvi[i].flags & RVI_MULTIHEAD)) // adjust power if needed

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						rvi[i].power /= 2;

   282

					rvi[i].flags |= RVI_MULTIHEAD;

   283

				} else {

   284

					if (rvi[i].flags & RVI_MULTIHEAD) // adjust power if needed

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						rvi[i].power *= 2;

   286

					rvi[i].flags &= ~RVI_MULTIHEAD;

   287

				}

   288

			}

   289

		} break;

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		case 0x14: { /* Cargo capacity */

   291

			FOR_EACH_OBJECT {

   292

				uint8 capacity = grf_load_byte(&buf);

   293

   294

				rvi[i].capacity = capacity;

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			}

   296

		} break;

   297

		case 0x15: { /* Cargo type */

   298

			FOR_EACH_OBJECT {

   299

				uint8 ctype = grf_load_byte(&buf);

   300

   301

				rvi[i].cargo_type = ctype;

   302

			}

   303

		} break;

   304

		case 0x16: { /* Weight */

   305

			FOR_EACH_OBJECT {

   306

				uint8 weight = grf_load_byte(&buf);

   307

   308

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

   309

			}

   310

		} break;

   311

		case 0x17: { /* Cost factor */

   312

			FOR_EACH_OBJECT {

   313

				uint8 cfactor = grf_load_byte(&buf);

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   315

				rvi[i].base_cost = cfactor;

   316

			}

   317

		} break;

   318

		case 0x18: { /* AI rank */

   319

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

   320

			FOR_EACH_OBJECT {

   321

				grf_load_byte(&buf);

   322

			}

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			ret = true;

   324

		} break;

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

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			/* TODO: What do the individual numbers mean?

   327

			 * XXX: And in what base are they, in fact? --pasky */

   328

			FOR_EACH_OBJECT {

   329

				uint8 traction = grf_load_byte(&buf);

   330

				int engclass;

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   332

				if (traction <= 0x07)

   333

					engclass = 0;

   334

				else if (traction <= 0x27)

   335

					engclass = 1;

   336

				else if (traction <= 0x31)

   337

					engclass = 2;

   338

				else

   339

					break;

   340

   341

				rvi[i].engclass = engclass;

   342

			}

   343

		} break;

   344

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

   345

			FOR_EACH_OBJECT {

   346

				uint16 wag_power = grf_load_word(&buf);

   347

   348

				rvi[i].pow_wag_power = wag_power;

   349

			}

   350

		} break;

   351

		case 0x1D: { /* Refit cargo */

   352

			FOR_EACH_OBJECT {

   353

				uint32 refit_mask = grf_load_dword(&buf);

   354

   355

				_engine_refit_masks[engine + i] = refit_mask;

   356

			}

   357

		} break;

   358

		case 0x1E: { /* Callback */

   359

			FOR_EACH_OBJECT {

   360

				byte callbacks = grf_load_byte(&buf);

   361

   362

				rvi[i].callbackmask = callbacks;

   363

			}

   364

		} break;

   365

		case 0x21: { /* Shorter vehicle */

   366

			FOR_EACH_OBJECT {

   367

				byte shorten_factor = grf_load_byte(&buf);

   368

   369

				rvi[i].shorten_factor = shorten_factor;

   370

			}

   371

		} break;

   372

		case 0x22: { /* Visual effect */

   373

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

   374

			FOR_EACH_OBJECT {

   375

				byte visual = grf_load_byte(&buf);

   376

   377

				rvi[i].visual_effect = visual;

   378

			}

   379

		} break;

   380

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

   381

			FOR_EACH_OBJECT {

   382

				byte wag_weight = grf_load_byte(&buf);

   383

   384

				rvi[i].pow_wag_weight = wag_weight;

   385

			}

   386

		} break;

   387

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

   388

			FOR_EACH_OBJECT {

   389

				byte weight = grf_load_byte(&buf);

   390

   391

				if (weight > 4) {

   392

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

   393

				} else {

   394

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

   395

				}

   396

			}

   397

		} break;

   398

		/* TODO */

   399

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

   400

		case 0x1A:	/* Sort order */

   401

		case 0x1C:	/* Refit cost */

   402

		case 0x1F:	/* Tractive effort */

   403

		case 0x20:	/* Air drag */

   404

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

   405

		case 0x26:	/* Retire vehicle early */

   406

			{

   407

			/* TODO */

   408

			FOR_EACH_OBJECT {

   409

				grf_load_byte(&buf);

   410

			}

   411

			ret = true;

   412

		}	break;

   413

		default:

   414

			ret = true;

   415

	}

   416

	*bufp = buf;

   417

	return ret;

   418

}

   419

   420

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

   421

{

   422

	RoadVehicleInfo *rvi = &_road_vehicle_info[engine];

   423

	byte *buf = *bufp;

   424

	int i;

   425

	bool ret = false;

   426

   427

	switch (prop) {

   428

		case 0x08: { /* Speed */

   429

			FOR_EACH_OBJECT {

   430

				uint8 speed = grf_load_byte(&buf);

   431

   432

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

   433

			}

   434

		} break;

   435

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

   436

			FOR_EACH_OBJECT {

   437

				uint8 runcost = grf_load_byte(&buf);

   438

   439

				rvi[i].running_cost = runcost;

   440

			}

   441

		} break;

   442

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

   443

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

   444

			FOR_EACH_OBJECT {

   445

				grf_load_dword(&buf);

   446

			}

   447

			ret = true;

   448

		} break;

   449

		case 0x0E: { /* Sprite ID */

   450

			FOR_EACH_OBJECT {

   451

				uint8 spriteid = grf_load_byte(&buf);

   452

   453

				if (spriteid == 0xFF)

   454

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

   455

   456

				rvi[i].image_index = spriteid;

   457

			}

   458

		} break;

   459

		case 0x0F: { /* Cargo capacity */

   460

			FOR_EACH_OBJECT {

   461

				uint16 capacity = grf_load_byte(&buf);

   462

   463

				rvi[i].capacity = capacity;

   464

			}

   465

		} break;

   466

		case 0x10: { /* Cargo type */

   467

			FOR_EACH_OBJECT {

   468

				uint8 cargo = grf_load_byte(&buf);

   469

   470

				rvi[i].cargo_type = cargo;

   471

			}

   472

		} break;

   473

		case 0x11: { /* Cost factor */

   474

			FOR_EACH_OBJECT {

   475

				uint8 cost_factor = grf_load_byte(&buf);

   476

   477

				rvi[i].base_cost = cost_factor; // ?? is it base_cost?

   478

			}

   479

		} break;

   480

		case 0x12: { /* SFX */

   481

			FOR_EACH_OBJECT {

   482

				uint8 sfx = grf_load_byte(&buf);

   483

   484

				rvi[i].sfx = sfx;

   485

			}

   486

		} break;

   487

		case 0x13:      /* Power in 10hp */

   488

		case 0x14:      /* Weight in 1/4 tons */

   489

		case 0x15:      /* Speed in mph*0.8 */

   490

			/* TODO: Support for road vehicles realistic power

   491

			 * computations (called rvpower in TTDPatch) is just

   492

			 * missing in OTTD yet. --pasky */

   493

			FOR_EACH_OBJECT {