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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 "fileio.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 "town.h"

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#include "newgrf_engine.h"

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#include "newgrf_text.h"

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#include "fontcache.h"

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#include "currency.h"

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#include "landscape.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 "cargotype.h"

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#include "industry.h"

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#include "newgrf_canal.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 "newgrf_fsmports.h"

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#include "gfxinit.h"

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#include "fios.h"

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    55

/* TTDPatch extended GRF format codec

    56

 * (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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 *

    59

 * Contains portions of documentation by TTDPatch team.

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

    61

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

    62

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

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    64

    65

static int _skip_sprites; // XXX

    66

static uint _file_index; // XXX

    67

    68

static GRFFile *_cur_grffile;

    69

GRFFile *_first_grffile;

    70

static SpriteID _cur_spriteid;

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static GrfLoadingStage _cur_stage;

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static uint32 _nfo_line;

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    74

static GRFConfig *_cur_grfconfig;

    75

    76

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

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static byte _misc_grf_features = 0;

    78

    79

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

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static uint32 _ttdpatch_flags[8];

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    82

/* 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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    85

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

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GRFLoadedFeatures _loaded_newgrf_features;

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    88

enum GrfDataType {

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	GDT_SOUND,

    90

};

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    92

static byte _grf_data_blocks;

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static GrfDataType _grf_data_type;

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    95

    96

enum grfspec_feature {

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	GSF_TRAIN,

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	GSF_ROAD,

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	GSF_SHIP,

   100

	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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	GSF_INDUSTRYTILES,

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	GSF_INDUSTRIES,

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	GSF_CARGOS,

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	GSF_SOUNDFX,

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	GSF_FSMPORTS,

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};

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   113

   114

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

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   116

static const uint _vehcounts[4] = {

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	/* GSF_TRAIN */    NUM_TRAIN_ENGINES,

   118

	/* GSF_ROAD */     NUM_ROAD_ENGINES,

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	/* GSF_SHIP */     NUM_SHIP_ENGINES,

   120

	/* GSF_AIRCRAFT */ NUM_AIRCRAFT_ENGINES

   121

};

   122

   123

static const uint _vehshifts[4] = {

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	/* GSF_TRAIN */    0,

   125

	/* GSF_ROAD */     ROAD_ENGINES_INDEX,

   126

	/* GSF_SHIP */     SHIP_ENGINES_INDEX,

   127

	/* GSF_AIRCRAFT */ AIRCRAFT_ENGINES_INDEX,

   128

};

   129

   130

enum {

   131

	MAX_STATIONS = 256,

   132

	MAX_FSM_PORTS = 256,

   133

};

   134

   135

static uint16 cargo_allowed[TOTAL_NUM_ENGINES];

   136

static uint16 cargo_disallowed[TOTAL_NUM_ENGINES];

   137

   138

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

   139

static uint32 _grm_engines[TOTAL_NUM_ENGINES];

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   141

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

   142

static uint32 _grm_cargos[NUM_CARGO];

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   144

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

   145

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

   146

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

   147

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

   148

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

   149

 * is no file information available during that time.

   150

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

   151

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

   152

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

   153

{

   154

	char buf[1024];

   155

	va_list va;

   156

   157

	va_start(va, str);

   158

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

   159

	va_end(va);

   160

   161

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

   162

}

   163

   164

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

   165

{

   166

	if (real >= wanted) return true;

   167

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

   168

	return false;

   169

}

   170

   171

static inline byte grf_load_byte(byte **buf)

   172

{

   173

	return *(*buf)++;

   174

}

   175

   176

static uint16 grf_load_word(byte **buf)

   177

{

   178

	uint16 val = grf_load_byte(buf);

   179

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

   180

}

   181

   182

static uint16 grf_load_extended(byte** buf)

   183

{

   184

	uint16 val;

   185

	val = grf_load_byte(buf);

   186

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

   187

	return val;

   188

}

   189

   190

static uint32 grf_load_dword(byte **buf)

   191

{

   192

	uint32 val = grf_load_word(buf);

   193

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

   194

}

   195

   196

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

   197

{

   198

	switch (size) {

   199

		case 1: return grf_load_byte(buf);

   200

		case 2: return grf_load_word(buf);

   201

		case 4: return grf_load_dword(buf);

   202

		default:

   203

			NOT_REACHED();

   204

			return 0;

   205

	}

   206

}

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   208

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

   209

{

   210

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

   211

	size_t string_length = ttd_strnlen(string, max_len);

   212

   213

	if (string_length == max_len) {

   214

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

   215

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

   216

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

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	} else {

   218

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

   219

		string_length++;

   220

	}

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	*buf += string_length;

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   223

	return string;

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}

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   226

static GRFFile *GetFileByGRFID(uint32 grfid)

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{

   228

	GRFFile *file;

   229

   230

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

   231

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

   232

	}

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	return file;

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}

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   236

static GRFFile *GetFileByFilename(const char *filename)

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{

   238

	GRFFile *file;

   239

   240

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

   241

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

   242

	}

   243

	return file;

   244

}

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   246

   247

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

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

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 * @param grfid Id of the grf file

   250

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

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 * @return the properly adjusted StringID

   252

 */

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StringID MapGRFStringID(uint32 grfid, StringID str)

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{

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	/* StringID table for TextIDs 0x4E->0x6D */

   256

	static StringID units_volume[] = {

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		STR_NOTHING,    STR_PASSENGERS, STR_TONS,       STR_BAGS,

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		STR_LITERS,     STR_ITEMS,      STR_CRATES,     STR_TONS,

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		STR_TONS,       STR_TONS,       STR_TONS,       STR_BAGS,

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		STR_TONS,       STR_TONS,       STR_TONS,       STR_BAGS,

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		STR_TONS,       STR_TONS,       STR_BAGS,       STR_LITERS,

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		STR_TONS,       STR_LITERS,     STR_TONS,       STR_NOTHING,

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		STR_BAGS,       STR_LITERS,     STR_TONS,       STR_NOTHING,

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		STR_TONS,       STR_NOTHING,    STR_LITERS,     STR_NOTHING

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	};

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

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

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

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	 * grfid in which they are declared */

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

   271

		return GetGRFStringID(grfid, str);

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	}

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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. */

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	TEXID_TO_STRINGID(0x000E, 0x002D, STR_000E);

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	TEXID_TO_STRINGID(0x002E, 0x004D, STR_002E);

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	if (str >= 0x004E && str <= 0x006D) str = units_volume[str - 0x004E];

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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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	TEXID_TO_STRINGID(0x200F, 0x201F, STR_200F_TALL_OFFICE_BLOCK);

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   288

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

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	TEXID_TO_STRINGID(0x482A, 0x483B, STR_482A_PRODUCTION_LAST_MONTH);

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#undef TEXTID_TO_STRINGID

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   292

	if (str == STR_NULL) return STR_EMPTY;

   293

   294

	return str;

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}

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   297

static uint8 MapDOSColour(uint8 colour)

   298

{

   299

	if (_use_dos_palette) return colour;

   300

   301

	if (colour < 10) {

   302

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

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		return dos_to_win_colour_map[colour];

   304

	}

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   306

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

   307

   308

	return colour;

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}

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   311

   312

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

   313

   314

static void dewagonize(int condition, int engine)

   315

{

   316

	EngineInfo *ei = &_engine_info[engine];

   317

	RailVehicleInfo *rvi = &_rail_vehicle_info[engine];

   318

   319

	if (condition != 0) {

   320

		ei->unk2 &= ~0x80;

   321

		if (rvi->railveh_type == RAILVEH_WAGON)

   322

			rvi->railveh_type = RAILVEH_SINGLEHEAD;

   323

	} else {

   324

		ei->unk2 |= 0x80;

   325

		rvi->railveh_type = RAILVEH_WAGON;

   326

	}

   327

}

   328

   329

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

   330

{

   331

	byte *buf = *bufp;

   332

	bool ret = false;

   333

   334

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

   335

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

   336

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

   337

   338

		switch (prop) {

   339

			case 0x05: { // Track type

   340

				uint8 tracktype = grf_load_byte(&buf);

   341

   342

				switch (tracktype) {

   343

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

   344

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

   345

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

   346

					default:

   347

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

   348

						break;

   349

				}

   350

			} break;

   351

   352

			case 0x08: // AI passenger service

   353

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

   354

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

   355

				grf_load_byte(&buf);

   356

				ret = true;

   357

				break;

   358

   359

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

   360

				uint16 speed = grf_load_word(&buf);

   361

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

   362

   363

				rvi->max_speed = speed;

   364

			} break;

   365

   366

			case 0x0B: { // Power

   367

				uint16 power = grf_load_word(&buf);

   368

   369

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

   370

   371

				rvi->power = power;

   372

				dewagonize(power, engine + i);

   373

			} break;

   374

   375

			case 0x0D: { // Running cost factor

   376

				uint8 runcostfact = grf_load_byte(&buf);

   377

   378

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

   379

   380

				rvi->running_cost_base = runcostfact;

   381

			} break;

   382

   383

			case 0x0E: { // Running cost base

   384

				uint32 base = grf_load_dword(&buf);

   385

   386

				switch (base) {

   387

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

   388

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

   389

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

   390

					case 0: break; // Used by wagons

   391

					default:

   392

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

   393

						break;

   394

				}

   395

			} break;

   396

   397

			case 0x12: { // Sprite ID

   398

				uint8 spriteid = grf_load_byte(&buf);

   399

   400

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

   401

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

   402

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

   403

   404

				rvi->image_index = spriteid;

   405

			} break;

   406

   407

			case 0x13: { // Dual-headed

   408

				uint8 dual = grf_load_byte(&buf);

   409

   410

				if (dual != 0) {

   411

					if (rvi->railveh_type != RAILVEH_MULTIHEAD) {

   412

						// adjust power and running cost if needed

   413

						rvi->power /= 2;

   414

						rvi->running_cost_base /= 2;

   415

					}

   416

					rvi->railveh_type = RAILVEH_MULTIHEAD;

   417

				} else {

   418

					if (rvi->railveh_type == RAILVEH_MULTIHEAD) {

   419

						// adjust power and running cost if needed

   420

						rvi->power *= 2;

   421

						rvi->running_cost_base *= 2;

   422

					}

   423

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

   424

						RAILVEH_WAGON : RAILVEH_SINGLEHEAD;

   425

				}

   426

			} break;

   427

   428

			case 0x14: // Cargo capacity

   429

				rvi->capacity = grf_load_byte(&buf);

   430

				break;

   431

   432

			case 0x15: { // Cargo type

   433

				uint8 ctype = grf_load_byte(&buf);

   434

   435

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

   436

					rvi->cargo_type = ctype;

   437

				} else {

   438

					rvi->cargo_type = CT_INVALID;

   439

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

   440

				}

   441

			} break;

   442

   443

			case 0x16: // Weight

   444

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

   445

				break;

   446

   447

			case 0x17: // Cost factor

   448

				rvi->base_cost = grf_load_byte(&buf);

   449

				break;

   450

   451

			case 0x18: // AI rank

   452

				rvi->ai_rank = grf_load_byte(&buf);

   453

				break;

   454

   455

			case 0x19: { // Engine traction type

   456

				/* What do the individual numbers mean?

   457

				 * 0x00 .. 0x07: Steam

   458

				 * 0x08 .. 0x27: Diesel

   459

				 * 0x28 .. 0x31: Electric

   460

				 * 0x32 .. 0x37: Monorail

   461

				 * 0x38 .. 0x41: Maglev

   462

				 */

   463

				uint8 traction = grf_load_byte(&buf);

   464

				EngineClass engclass;

   465

   466

				if (traction <= 0x07) {

   467

					engclass = EC_STEAM;

   468

				} else if (traction <= 0x27) {

   469

					engclass = EC_DIESEL;

   470

				} else if (traction <= 0x31) {

   471

					engclass = EC_ELECTRIC;

   472

				} else if (traction <= 0x37) {

   473

					engclass = EC_MONORAIL;

   474

				} else if (traction <= 0x41) {

   475

					engclass = EC_MAGLEV;

   476

				} else {

   477

					break;

   478

				}

   479

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

   480

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

   481

   482

				rvi->engclass = engclass;

   483

			} break;

   484

   485

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

   486

				EngineID pos = grf_load_byte(&buf);

   487