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/* $Id$ */

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#include "stdafx.h"

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#include <stdarg.h>

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     7

#include "openttd.h"

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#include "debug.h"

     9

#include "gfx.h"

    10

#include "fileio.h"

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#include "functions.h"

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#include "engine.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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    18

/* TTDPatch extended GRF format codec

    19

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

    20

 * 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

    24

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

    25

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

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    27

    28

extern int _skip_sprites;

    29

extern int _replace_sprites_count[16];

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extern int _replace_sprites_offset[16];

    31

extern int _traininfo_vehicle_pitch;

    32

    34

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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    39

static int32 _paramlist[0x7f];

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static int _param_max;

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    42

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

    43

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_BRIDGE,

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	GSF_TOWNHOUSE,

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} grfspec_feature;

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    56

    57

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

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    59

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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};

    65

    66

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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    73

    74

/* Debugging messages policy:

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 *

    76

 * 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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 *

    79

 * 0..2 - dedicated to grfmsg()

    80

 * 3

    81

 * 4

    82

 * 5

    83

 * 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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    89

    90

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,

    95

} grfmsg_severity;

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    97

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

    98

{

    99

	static const char* const severitystr[] = {

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		"Notice",

   101

		"Warning",

   102

		"Error",

   103

		"Fatal"

   104

	};

   105

	int export_severity = 0;

   106

	char buf[1024];

   107

	va_list va;

   108

   109

	va_start(va, str);

   110

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

   111

	va_end(va);

   112

   113

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

   114

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

   115

}

   116

   117

   118

#define check_length(real, wanted, where) \

   119

do { \

   120

	if (real < wanted) { \

   121

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

   122

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

   123

		return; \

   124

	} \

   125

} while (0)

   126

   127

   128

static inline byte grf_load_byte(byte **buf)

   129

{

   130

	return *(*buf)++;

   131

}

   132

   133

static uint16 grf_load_word(byte **buf)

   134

{

   135

	uint16 val;

   136

	byte *p = *buf;

   137

	val = p[0];

   138

	val |= p[1] << 8;

   139

	*buf = p + 2;

   140

	return val;

   141

}

   142

   143

static uint32 grf_load_dword(byte **buf)

   144

{

   145

	uint32 val;

   146

	byte *p = *buf;

   147

	val = p[0];

   148

	val |= p[1] << 8;

   149

	val |= p[2] << 16;

   150

	val |= p[3] << 24;

   151

	*buf = p + 4;

   152

	return val;

   153

}

   154

   155

   156

static GRFFile *GetFileByGRFID(uint32 grfid)

   157

{

   158

	GRFFile *file;

   159

   160

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

   161

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

   162

	}

   163

	return file;

   164

}

   165

   166

static GRFFile *GetFileByFilename(const char *filename)

   167

{

   168

	GRFFile *file;

   169

   170

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

   171

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

   172

	}

   173

	return file;

   174

}

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   176

   177

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

   178

   179

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

   180

   181

static void dewagonize(int condition, int engine)

   182

{

   183

	EngineInfo *ei = &_engine_info[engine];

   184

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   185

   186

	if (condition != 0) {

   187

		ei->unk2 &= ~0x80;

   188

		rvi->flags &= ~2;

   189

	} else {

   190

		ei->unk2 |= 0x80;

   191

		rvi->flags |= 2;

   192

	}

   193

}

   194

   195

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

   196

{

   197

	EngineInfo *ei = &_engine_info[engine];

   198

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   199

	byte *buf = *bufp;

   200

	int i;

   201

	bool ret = false;

   202

   203

	switch (prop) {

   204

		case 0x05: { /* Track type */

   205

			FOR_EACH_OBJECT {

   206

				uint8 tracktype = grf_load_byte(&buf);

   207

   208

				ei[i].railtype_climates &= 0xf;

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				ei[i].railtype_climates |= tracktype << 4;

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			}

   211

		} break;

   212

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

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			/* TODO */

   214

			FOR_EACH_OBJECT {

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				grf_load_byte(&buf);

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			}

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			ret = true;

   218

		} break;

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		case 0x09: { /* Speed */

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			FOR_EACH_OBJECT {

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				uint16 speed = grf_load_word(&buf);

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   223

				rvi[i].max_speed = speed;

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				dewagonize(speed, engine + i);

   225

			}

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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);

   230

   231

				if (rvi[i].flags & RVI_MULTIHEAD)

   232

					power /= 2;

   233

   234

				rvi[i].power = power;

   235

				dewagonize(power, engine + i);

   236

			}

   237

		} break;

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

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			FOR_EACH_OBJECT {

   240

				uint8 runcostfact = grf_load_byte(&buf);

   241

   242

				rvi[i].running_cost_base = runcostfact;

   243

				dewagonize(runcostfact, engine + i);

   244

			}

   245

		} break;

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

   247

			FOR_EACH_OBJECT {

   248

				uint32 base = grf_load_dword(&buf);

   249

   250

				switch (base) {

   251

				case 0x4C30:

   252

					rvi[i].engclass = 0;

   253

					break;

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				case 0x4C36:

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					rvi[i].engclass = 1;

   256

					break;

   257

				case 0x4C3C:

   258

					rvi[i].engclass = 2;

   259

					break;

   260

				}

   261

				dewagonize(base, engine + i);

   262

			}

   263

		} break;

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		case 0x12: { /* Sprite ID */

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			FOR_EACH_OBJECT {

   266

				uint8 spriteid = grf_load_byte(&buf);

   267

   268

				if (spriteid == 0xFD && rvi[i].image_index != 0xFD)

   269

					_engine_original_sprites[engine + i] = rvi[i].image_index;

   270

				rvi[i].image_index = spriteid;

   271

			}

   272

		} break;

   273

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

   274

			FOR_EACH_OBJECT {

   275

				uint8 dual = grf_load_byte(&buf);

   276

   277

				if (dual != 0) {

   278

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

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						rvi[i].power /= 2;

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					rvi[i].flags |= RVI_MULTIHEAD;

   281

				} else {

   282

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

   283

						rvi[i].power *= 2;

   284

					rvi[i].flags &= ~RVI_MULTIHEAD;

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				}

   286

			}

   287

		} break;

   288

		case 0x14: { /* Cargo capacity */

   289

			FOR_EACH_OBJECT {

   290

				uint8 capacity = grf_load_byte(&buf);

   291

   292

				rvi[i].capacity = capacity;

   293

			}

   294

		} break;

   295

		case 0x15: { /* Cargo type */

   296

			FOR_EACH_OBJECT {

   297

				uint8 ctype = grf_load_byte(&buf);

   298

   299

				rvi[i].cargo_type = ctype;

   300

			}

   301

		} break;

   302

		case 0x16: { /* Weight */

   303

			FOR_EACH_OBJECT {

   304

				uint8 weight = grf_load_byte(&buf);

   305

   306

				rvi[i].weight = weight;

   307

			}

   308

		} break;

   309

		case 0x17: { /* Cost factor */

   310

			FOR_EACH_OBJECT {

   311

				uint8 cfactor = grf_load_byte(&buf);

   312

   313

				rvi[i].base_cost = cfactor;

   314

			}

   315

		} break;

   316

		case 0x18: { /* AI rank */

   317

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

   318

			FOR_EACH_OBJECT {

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				grf_load_byte(&buf);

   320

			}

   321

			ret = true;

   322

		} break;

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

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			/* TODO: What do the individual numbers mean?

   325

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

   326

			FOR_EACH_OBJECT {

   327

				uint8 traction = grf_load_byte(&buf);

   328

				int engclass;

   329

   330

				if (traction <= 0x07)

   331

					engclass = 0;

   332

				else if (traction <= 0x27)

   333

					engclass = 1;

   334

				else if (traction <= 0x31)

   335

					engclass = 2;

   336

				else

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					break;

   338

   339

				rvi[i].engclass = engclass;

   340

			}

   341

		} break;

   342

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

   343

			FOR_EACH_OBJECT {

   344

				uint16 wag_power = grf_load_word(&buf);

   345

   346

				rvi[i].pow_wag_power = wag_power;

   347

			}

   348

		} break;

   349

		case 0x1D: { /* Refit cargo */

   350

			FOR_EACH_OBJECT {

   351

				uint32 refit_mask = grf_load_dword(&buf);

   352

   353

				_engine_refit_masks[engine + i] = refit_mask;

   354

			}

   355

		} break;

   356

		case 0x1E: { /* Callback */

   357

			FOR_EACH_OBJECT {

   358

				byte callbacks = grf_load_byte(&buf);

   359

   360

				rvi[i].callbackmask = callbacks;

   361

			}

   362

		} break;

   363

		case 0x21: { /* Shorter vehicle */

   364

			FOR_EACH_OBJECT {

   365

				byte shorten_factor = grf_load_byte(&buf);

   366

   367

				rvi[i].shorten_factor = shorten_factor;

   368

			}

   369

		} break;

   370

		case 0x22: { /* Visual effect */

   371

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

   372

			FOR_EACH_OBJECT {

   373

				byte visual = grf_load_byte(&buf);

   374

   375

				rvi[i].visual_effect = visual;

   376

			}

   377

		} break;

   378

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

   379

			FOR_EACH_OBJECT {

   380

				byte wag_weight = grf_load_byte(&buf);

   381

   382

				rvi[i].pow_wag_weight = wag_weight;

   383

			}

   384

		} break;

   385

		/* TODO */

   386

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

   387

		case 0x1A:	/* Sort order */

   388

		case 0x1C:	/* Refit cost */

   389

		case 0x1F:	/* Tractive effort */

   390

		case 0x20:	/* Air drag */

   391

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

   392

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

   393

		case 0x26:	/* Retire vehicle early */

   394

			{

   395

			/* TODO */

   396

			FOR_EACH_OBJECT {

   397

				grf_load_byte(&buf);

   398

			}

   399

			ret = true;

   400

		}	break;

   401

		default:

   402

			ret = true;

   403

	}

   404

	*bufp = buf;

   405

	return ret;

   406

}

   407

   408

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

   409

{

   410

	RoadVehicleInfo *rvi = &_road_vehicle_info[engine];

   411

	byte *buf = *bufp;

   412

	int i;

   413

	bool ret = false;

   414

   415

	switch (prop) {

   416

		case 0x08: { /* Speed */

   417

			FOR_EACH_OBJECT {

   418

				uint8 speed = grf_load_byte(&buf);

   419

   420

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

   421

			}

   422

		} break;

   423

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

   424

			FOR_EACH_OBJECT {

   425

				uint8 runcost = grf_load_byte(&buf);

   426

   427

				rvi[i].running_cost = runcost;

   428

			}

   429

		} break;

   430

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

   431

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

   432

			FOR_EACH_OBJECT {

   433

				grf_load_dword(&buf);

   434

			}

   435

			ret = true;

   436

		} break;

   437

		case 0x0E: { /* Sprite ID */

   438

			FOR_EACH_OBJECT {

   439

				uint8 spriteid = grf_load_byte(&buf);

   440

   441

				if (spriteid == 0xFF)

   442

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

   443

   444

				// This is currently not used but there's no reason

   445

				// in not having it here for the future.

   446

				if (spriteid == 0xFD && rvi[i].image_index != 0xFD)

   447

					_engine_original_sprites[ROAD_ENGINES_INDEX + engine + i] = rvi[i].image_index;

   448

   449

				rvi[i].image_index = spriteid;

   450

			}

   451

		} break;

   452

		case 0x0F: { /* Cargo capacity */

   453

			FOR_EACH_OBJECT {

   454

				uint16 capacity = grf_load_byte(&buf);

   455

   456

				rvi[i].capacity = capacity;

   457

			}

   458

		} break;

   459

		case 0x10: { /* Cargo type */

   460

			FOR_EACH_OBJECT {

   461

				uint8 cargo = grf_load_byte(&buf);

   462

   463

				rvi[i].cargo_type = cargo;

   464

			}

   465

		} break;

   466

		case 0x11: { /* Cost factor */

   467

			FOR_EACH_OBJECT {

   468

				uint8 cost_factor = grf_load_byte(&buf);

   469

   470

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

   471

			}

   472

		} break;

   473

		case 0x12: { /* SFX */

   474

			FOR_EACH_OBJECT {

   475

				uint8 sfx = grf_load_byte(&buf);

   476

   477

				rvi[i].sfx = sfx;

   478

			}

   479

		} break;

   480

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

   481

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

   482

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

   483

			/* TODO: Support for road vehicles realistic power

   484

			 * computations (called rvpower in TTDPatch) is just

   485

			 * missing in OTTD yet. --pasky */

   486

			FOR_EACH_OBJECT {

   487

				grf_load_byte(&buf);

   488

			}

   489

			ret = true;

   490

			break;

   491

		case 0x16: { /* Cargos available for refitting */

   492

			FOR_EACH_OBJECT {

   493

				uint32 refit_mask = grf_load_dword(&buf);

   494