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/* $Id$ */

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/** @file newgrf.cpp */

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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 "string.h"

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#include "strings.h"

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#include "table/strings.h"

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#include "bridge.h"

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#include "town.h"

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#include "economy.h"

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#include "newgrf_engine.h"

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#include "vehicle.h"

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#include "newgrf_text.h"

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#include "table/sprites.h"

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#include "fontcache.h"

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#include "date.h"

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#include "currency.h"

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#include "landscape.h"

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#include "sound.h"

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#include "newgrf_config.h"

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#include "newgrf_house.h"

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#include "newgrf_sound.h"

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#include "newgrf_spritegroup.h"

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#include "helpers.hpp"

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#include "table/town_land.h"

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#include "cargotype.h"

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#include "industry.h"

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#include "newgrf_canal.h"

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#include "table/build_industry.h"

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#include "newgrf_commons.h"

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#include "newgrf_townname.h"

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#include "newgrf_industries.h"

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#include "table/landscape_sprite.h"

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#include "gfxinit.h"

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    51

/* TTDPatch extended GRF format codec

    52

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

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

    54

 *

    55

 * Contains portions of documentation by TTDPatch team.

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

    57

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

    58

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

    59

    60

    61

static int _skip_sprites; // XXX

    62

static uint _file_index; // XXX

    63

SpriteID _signal_base;

    64

SpriteID _coast_base;

    65

    66

static GRFFile *_cur_grffile;

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GRFFile *_first_grffile;

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static SpriteID _cur_spriteid;

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static GrfLoadingStage _cur_stage;

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static uint32 _nfo_line;

    71

    72

static GRFConfig *_cur_grfconfig;

    73

    74

/* Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */

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static byte _misc_grf_features = 0;

    76

    77

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

    78

static uint32 _ttdpatch_flags[8];

    79

    80

/* Used by Action 0x06 to preload a pseudo sprite and modify its content */

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static byte *_preload_sprite = NULL;

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    83

/* Indicates which are the newgrf features currently loaded ingame */

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GRFLoadedFeatures _loaded_newgrf_features;

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    86

enum GrfDataType {

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	GDT_SOUND,

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};

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    90

static byte _grf_data_blocks;

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static GrfDataType _grf_data_type;

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    93

    94

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,

   100

	GSF_CANAL,

   101

	GSF_BRIDGE,

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	GSF_TOWNHOUSE,

   103

	GSF_GLOBALVAR,

   104

	GSF_INDUSTRYTILES,

   105

	GSF_INDUSTRIES,

   106

	GSF_CARGOS,

   107

	GSF_SOUNDFX,

   108

};

   109

   110

   111

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

   112

   113

static const uint _vehcounts[4] = {

   114

	/* GSF_TRAIN */    NUM_TRAIN_ENGINES,

   115

	/* GSF_ROAD */     NUM_ROAD_ENGINES,

   116

	/* GSF_SHIP */     NUM_SHIP_ENGINES,

   117

	/* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES

   118

};

   119

   120

static const uint _vehshifts[4] = {

   121

	/* GSF_TRAIN */    0,

   122

	/* GSF_ROAD */     ROAD_ENGINES_INDEX,

   123

	/* GSF_SHIP */     SHIP_ENGINES_INDEX,

   124

	/* GSF_AIRCRAFT */ AIRCRAFT_ENGINES_INDEX,

   125

};

   126

   127

enum {

   128

	MAX_STATIONS = 256,

   129

};

   130

   131

static uint16 cargo_allowed[TOTAL_NUM_ENGINES];

   132

static uint16 cargo_disallowed[TOTAL_NUM_ENGINES];

   133

   134

/* Contains the GRF ID of the owner of a vehicle if it has been reserved */

   135

static uint32 _grm_engines[TOTAL_NUM_ENGINES];

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   137

/* Contains the GRF ID of the owner of a cargo if it has been reserved */

   138

static uint32 _grm_cargos[NUM_CARGO];

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   140

/** DEBUG() function dedicated to newGRF debugging messages

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 * Function is essentialy the same as DEBUG(grf, severity, ...) with the

   142

 * addition of file:line information when parsing grf files.

   143

 * NOTE: for the above reason(s) grfmsg() should ONLY be used for

   144

 * loading/parsing grf files, not for runtime debug messages as there

   145

 * is no file information available during that time.

   146

 * @param severity debugging severity level, see debug.h

   147

 * @param str message in printf() format */

   148

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

   149

{

   150

	char buf[1024];

   151

	va_list va;

   152

   153

	va_start(va, str);

   154

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

   155

	va_end(va);

   156

   157

	DEBUG(grf, severity, "[%s:%d] %s", _cur_grfconfig->filename, _nfo_line, buf);

   158

}

   159

   160

static inline bool check_length(int real, int wanted, const char *str)

   161

{

   162

	if (real >= wanted) return true;

   163

	grfmsg(0, "%s: Invalid pseudo sprite length %d (expected %d)!", str, real, wanted);

   164

	return false;

   165

}

   166

   167

static inline byte grf_load_byte(byte **buf)

   168

{

   169

	return *(*buf)++;

   170

}

   171

   172

static uint16 grf_load_word(byte **buf)

   173

{

   174

	uint16 val = grf_load_byte(buf);

   175

	return val | (grf_load_byte(buf) << 8);

   176

}

   177

   178

static uint16 grf_load_extended(byte** buf)

   179

{

   180

	uint16 val;

   181

	val = grf_load_byte(buf);

   182

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

   183

	return val;

   184

}

   185

   186

static uint32 grf_load_dword(byte **buf)

   187

{

   188

	uint32 val = grf_load_word(buf);

   189

	return val | (grf_load_word(buf) << 16);

   190

}

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   192

static uint32 grf_load_var(byte size, byte **buf)

   193

{

   194

	switch (size) {

   195

		case 1: return grf_load_byte(buf);

   196

		case 2: return grf_load_word(buf);

   197

		case 4: return grf_load_dword(buf);

   198

		default:

   199

			NOT_REACHED();

   200

			return 0;

   201

	}

   202

}

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   204

static const char *grf_load_string(byte **buf, size_t max_len)

   205

{

   206

	const char *string   = *(const char **)buf;

   207

	size_t string_length = ttd_strnlen(string, max_len);

   208

   209

	if (string_length == max_len) {

   210

		/* String was not NUL terminated, so make sure it is now. */

   211

		(*buf)[string_length - 1] = '\0';

   212

		grfmsg(7, "String was not terminated with a zero byte.");

   213

	} else {

   214

		/* Increase the string length to include the NUL byte. */

   215

		string_length++;

   216

	}

   217

	*buf += string_length;

   218

   219

	return string;

   220

}

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   222

static GRFFile *GetFileByGRFID(uint32 grfid)

   223

{

   224

	GRFFile *file;

   225

   226

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

   227

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

   228

	}

   229

	return file;

   230

}

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   232

static GRFFile *GetFileByFilename(const char *filename)

   233

{

   234

	GRFFile *file;

   235

   236

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

   237

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

   238

	}

   239

	return file;

   240

}

   241

   242

   243

/** Used when setting an object's property to map to the GRF's strings

   244

 * while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one

   245

 * @param grfid Id of the grf file

   246

 * @param str StringID that we want to have the equivalent in OoenTTD

   247

 * @return the properly adjusted StringID

   248

 */

   249

StringID MapGRFStringID(uint32 grfid, StringID str)

   250

{

   251

	/* 0xD0 and 0xDC stand for all the TextIDs in the range

   252

	 * of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts).

   253

	 * These strings are unique to each grf file, and thus require to be used with the

   254

	 * grfid in which they are declared */

   255

	if (GB(str, 8, 8) == 0xD0 || GB(str, 8, 8) == 0xDC) {

   256

		return GetGRFStringID(grfid, str);

   257

	}

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#define TEXID_TO_STRINGID(begin, end, stringid) if (str >= begin && str <= end) return str + (stringid - begin)

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	/* We have some changes in our cargo strings, resulting in some missing. */

   260

	TEXID_TO_STRINGID(0x000E, 0x002D, STR_000E);

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	TEXID_TO_STRINGID(0x002E, 0x004D, STR_002E);

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	TEXID_TO_STRINGID(0x004E, 0x006D, STR_QUANTITY_NOTHING);

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	TEXID_TO_STRINGID(0x006E, 0x008D, STR_QUANTITY_NOTHING);

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	TEXID_TO_STRINGID(0x008E, 0x00AD, STR_ABBREV_NOTHING);

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   266

	/* Map building names according to our lang file changes

   267

	 * 0x200F = Tall Office Block, first house name in the original data, the one that TTDPatch stil uses

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	 * 0x201F = Old houses is the last house name.

   269

	 * OpenTTD does not have exactly the same order aymore, so, the code below allows

   270

	 * to compensate for the difference */

   271

	TEXID_TO_STRINGID(0x200F, 0x201F, STR_200F_TALL_OFFICE_BLOCK);

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   273

	/* Same thing for industries, since the introduction of 4 new strings above STR_482A_PRODUCTION_LAST_MONTH */

   274

	TEXID_TO_STRINGID(0x482A, 0x483B, STR_482A_PRODUCTION_LAST_MONTH);

   275

#undef TEXTID_TO_STRINGID

   276

   277

	if (str == STR_NULL) return STR_EMPTY;

   278

   279

	return str;

   280

}

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   282

static uint8 MapDOSColour(uint8 colour)

   283

{

   284

	if (_use_dos_palette) return colour;

   285

   286

	if (colour < 10) {

   287

		static uint8 dos_to_win_colour_map[] = { 0, 215, 216, 136, 88, 106, 32, 33, 40, 245 };

   288

		return dos_to_win_colour_map[colour];

   289

	}

   290

   291

	if (colour >= 245 && colour < 254) return colour - 28;

   292

   293

	return colour;

   294

}

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   296

   297

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

   298

   299

static void dewagonize(int condition, int engine)

   300

{

   301

	EngineInfo *ei = &_engine_info[engine];

   302

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   303

   304

	if (condition != 0) {

   305

		ei->unk2 &= ~0x80;

   306

		if (rvi->railveh_type == RAILVEH_WAGON)

   307

			rvi->railveh_type = RAILVEH_SINGLEHEAD;

   308

	} else {

   309

		ei->unk2 |= 0x80;

   310

		rvi->railveh_type = RAILVEH_WAGON;

   311

	}

   312

}

   313

   314

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

   315

{

   316

	byte *buf = *bufp;

   317

	bool ret = false;

   318

   319

	for (int i = 0; i < numinfo; i++) {

   320

		EngineInfo *ei       = &_engine_info[engine + i];

   321

		RailVehicleInfo *rvi = &_rail_vehicle_info[engine + i];

   322

   323

		switch (prop) {

   324

			case 0x05: { // Track type

   325

				uint8 tracktype = grf_load_byte(&buf);

   326

   327

				switch (tracktype) {

   328

					case 0: rvi->railtype = rvi->engclass >= 2 ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL; break;

   329

					case 1: rvi->railtype = RAILTYPE_MONO; break;

   330

					case 2: rvi->railtype = RAILTYPE_MAGLEV; break;

   331

					default:

   332

						grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype);

   333

						break;

   334

				}

   335

			} break;

   336

   337

			case 0x08: // AI passenger service

   338

				/** @todo Tells the AI that this engine is designed for

   339

				 * passenger services and shouldn't be used for freight. */

   340

				grf_load_byte(&buf);

   341

				ret = true;

   342

				break;

   343

   344

			case 0x09: { // Speed (1 unit is 1 kmh)

   345

				uint16 speed = grf_load_word(&buf);

   346

				if (speed == 0xFFFF) speed = 0;

   347

   348

				rvi->max_speed = speed;

   349

			} break;

   350

   351

			case 0x0B: { // Power

   352

				uint16 power = grf_load_word(&buf);

   353

   354

				if (rvi->railveh_type == RAILVEH_MULTIHEAD) power /= 2;

   355

   356

				rvi->power = power;

   357

				dewagonize(power, engine + i);

   358

			} break;

   359

   360

			case 0x0D: { // Running cost factor

   361

				uint8 runcostfact = grf_load_byte(&buf);

   362

   363

				if (rvi->railveh_type == RAILVEH_MULTIHEAD) runcostfact /= 2;

   364

   365

				rvi->running_cost_base = runcostfact;

   366

			} break;

   367

   368

			case 0x0E: { // Running cost base

   369

				uint32 base = grf_load_dword(&buf);

   370

   371

				switch (base) {

   372

					case 0x4C30: rvi->running_cost_class = 0; break;

   373

					case 0x4C36: rvi->running_cost_class = 1; break;

   374

					case 0x4C3C: rvi->running_cost_class = 2; break;

   375

					case 0: break; // Used by wagons

   376

					default:

   377

						grfmsg(1, "RailVehicleChangeInfo: Unsupported running cost base 0x%04X, ignoring", base);

   378

						break;

   379

				}

   380

			} break;

   381

   382

			case 0x12: { // Sprite ID

   383

				uint8 spriteid = grf_load_byte(&buf);

   384

   385

				/* TTD sprite IDs point to a location in a 16bit array, but we use it

   386

				 * as an array index, so we need it to be half the original value. */

   387

				if (spriteid < 0xFD) spriteid >>= 1;

   388

   389

				rvi->image_index = spriteid;

   390

			} break;

   391

   392

			case 0x13: { // Dual-headed

   393

				uint8 dual = grf_load_byte(&buf);

   394

   395

				if (dual != 0) {

   396

					if (rvi->railveh_type != RAILVEH_MULTIHEAD) {

   397

						// adjust power and running cost if needed

   398

						rvi->power /= 2;

   399

						rvi->running_cost_base /= 2;

   400

					}

   401

					rvi->railveh_type = RAILVEH_MULTIHEAD;

   402

				} else {

   403

					if (rvi->railveh_type == RAILVEH_MULTIHEAD) {

   404

						// adjust power and running cost if needed

   405

						rvi->power *= 2;

   406

						rvi->running_cost_base *= 2;

   407

					}

   408

					rvi->railveh_type = rvi->power == 0 ?

   409

						RAILVEH_WAGON : RAILVEH_SINGLEHEAD;

   410

				}

   411

			} break;

   412

   413

			case 0x14: // Cargo capacity

   414

				rvi->capacity = grf_load_byte(&buf);

   415

				break;

   416

   417

			case 0x15: { // Cargo type

   418

				uint8 ctype = grf_load_byte(&buf);

   419

   420

				if (ctype < NUM_CARGO && HASBIT(_cargo_mask, ctype)) {

   421

					rvi->cargo_type = ctype;

   422

				} else {

   423

					rvi->cargo_type = CT_INVALID;

   424

					grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype);

   425

				}

   426

			} break;

   427

   428

			case 0x16: // Weight

   429

				SB(rvi->weight, 0, 8, grf_load_byte(&buf));

   430

				break;

   431

   432

			case 0x17: // Cost factor

   433

				rvi->base_cost = grf_load_byte(&buf);

   434

				break;

   435

   436

			case 0x18: // AI rank

   437

				rvi->ai_rank = grf_load_byte(&buf);

   438

				break;

   439

   440

			case 0x19: { // Engine traction type

   441

				/* What do the individual numbers mean?

   442

				 * 0x00 .. 0x07: Steam

   443

				 * 0x08 .. 0x27: Diesel

   444

				 * 0x28 .. 0x31: Electric

   445

				 * 0x32 .. 0x37: Monorail

   446

				 * 0x38 .. 0x41: Maglev

   447

				 */

   448

				uint8 traction = grf_load_byte(&buf);

   449

				EngineClass engclass;

   450

   451

				if (traction <= 0x07) {

   452

					engclass = EC_STEAM;

   453

				} else if (traction <= 0x27) {

   454

					engclass = EC_DIESEL;

   455

				} else if (traction <= 0x31) {

   456

					engclass = EC_ELECTRIC;

   457

				} else if (traction <= 0x37) {

   458

					engclass = EC_MONORAIL;

   459

				} else if (traction <= 0x41) {

   460

					engclass = EC_MAGLEV;

   461

				} else {

   462

					break;

   463

				}

   464

				if (rvi->railtype == RAILTYPE_RAIL     && engclass >= EC_ELECTRIC) rvi->railtype = RAILTYPE_ELECTRIC;

   465

				if (rvi->railtype == RAILTYPE_ELECTRIC && engclass  < EC_ELECTRIC) rvi->railtype = RAILTYPE_RAIL;

   466

   467

				rvi->engclass = engclass;

   468

			} break;

   469

   470

			case 0x1A: { // Alter purchase list sort order

   471

				EngineID pos = grf_load_byte(&buf);

   472

   473

				if (pos < NUM_TRAIN_ENGINES) {

   474

					AlterRailVehListOrder(engine + i, pos);

   475

				} else {

   476

					grfmsg(2, "RailVehicleChangeInfo: Invalid train engine ID %d, ignoring", pos);

   477

				}

   478

			} break;

   479

   480

			case 0x1B: // Powered wagons power bonus

   481

				rvi->pow_wag_power = grf_load_word(&buf);

   482

				break;

   483

   484

			case 0x1C: // Refit cost

   485

				ei->refit_cost = grf_load_byte(&buf);

   486

				break;

   487

   488

			case 0x1D: // Refit cargo

   489

				ei->refit_mask = grf_load_dword(&buf);

   490

				break;