aboutsummaryrefslogtreecommitdiff
path: root/engines/agi/detection.cpp
blob: 21ff5deb2cab9337abb8b8c3275bc053d6755825 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

// FIXME: Avoid using printf
#define FORBIDDEN_SYMBOL_EXCEPTION_printf

#include "base/plugins.h"

#include "engines/advancedDetector.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/savefile.h"
#include "common/textconsole.h"
#include "graphics/thumbnail.h"
#include "graphics/surface.h"

#include "agi/agi.h"
#include "agi/preagi.h"
#include "agi/wagparser.h"


namespace Agi {

struct AGIGameDescription {
	ADGameDescription desc;

	int gameID;
	int gameType;
	uint32 features;
	uint16 version;
};

uint32 AgiBase::getGameID() const {
	return _gameDescription->gameID;
}

uint32 AgiBase::getFeatures() const {
	return _gameFeatures;
}

Common::Platform AgiBase::getPlatform() const {
	return _gameDescription->desc.platform;
}

Common::Language AgiBase::getLanguage() const {
	return _gameDescription->desc.language;
}

uint16 AgiBase::getVersion() const {
	return _gameVersion;
}

uint16 AgiBase::getGameType() const {
	return _gameDescription->gameType;
}

const char *AgiBase::getGameMD5() const {
	return _gameDescription->desc.filesDescriptions[0].md5;
}

void AgiBase::initFeatures() {
	_gameFeatures = _gameDescription->features;
}

void AgiBase::setFeature(uint32 feature) {
	_gameFeatures |= feature;
}

void AgiBase::setVersion(uint16 version) {
	_gameVersion = version;
}

void AgiBase::initVersion() {
	_gameVersion = _gameDescription->version;
}

}

static const PlainGameDescriptor agiGames[] = {
	{"agi", "Sierra AGI game"},
	{"agi-fanmade", "Fanmade AGI game"},
	{"agidemo", "AGI Demo"},
	{"bc", "The Black Cauldron"},
	{"caitlyn", "Caitlyn's Destiny"},
	{"ddp", "Donald Duck's Playground"},
	{"goldrush", "Gold Rush!"},
	{"kq1", "King's Quest I: Quest for the Crown"},
	{"kq2", "King's Quest II: Romancing the Throne"},
	{"kq3", "King's Quest III: To Heir Is Human"},
	{"kq4", "King's Quest IV: The Perils of Rosella"},
	{"lsl1", "Leisure Suit Larry in the Land of the Lounge Lizards"},
	{"mickey", "Mickey\'s Space Adventure"},
	{"mixedup", "Mixed-Up Mother Goose"},
	{"mh1", "Manhunter 1: New York"},
	{"mh2", "Manhunter 2: San Francisco"},
	{"pq1", "Police Quest I: In Pursuit of the Death Angel"},
	{"serguei1", "Serguei's Destiny 1"},
	{"serguei2", "Serguei's Destiny 2"},
	{"sq0", "Space Quest 0: Replicated"},
	{"sq1", "Space Quest I: The Sarien Encounter"},
	{"sq2", "Space Quest II: Vohaul's Revenge"},
	{"sqx", "Space Quest X: The Lost Chapter"},
	{"tetris", "AGI Tetris"},
	{"troll", "Troll\'s Tale"},
	{"winnie", "Winnie the Pooh in the Hundred Acre Wood"},
	{"xmascard", "Xmas Card"},

	{0, 0}
};

#include "agi/detection_tables.h"

using namespace Agi;

class AgiMetaEngine : public AdvancedMetaEngine {
	mutable Common::String	_gameid;
	mutable Common::String	_extra;

public:
	AgiMetaEngine() : AdvancedMetaEngine(Agi::gameDescriptions, sizeof(Agi::AGIGameDescription), agiGames) {
		_singleid = "agi";
		_guioptions = Common::GUIO_NOSPEECH;
	}

	virtual const char *getName() const {
		return "AGI preAGI + v2 + v3";
	}
	virtual const char *getOriginalCopyright() const {
		return "Sierra AGI Engine (C) Sierra On-Line Software";
	}

	virtual bool hasFeature(MetaEngineFeature f) const;
	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
	virtual SaveStateList listSaves(const char *target) const;
	virtual int getMaximumSaveSlot() const;
	virtual void removeSaveState(const char *target, int slot) const;
	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;

	const ADGameDescription *fallbackDetect(const FileMap &allFiles, const Common::FSList &fslist) const;
};

bool AgiMetaEngine::hasFeature(MetaEngineFeature f) const {
	return
		(f == kSupportsListSaves) ||
		(f == kSupportsLoadingDuringStartup) ||
		(f == kSupportsDeleteSave) ||
		(f == kSavesSupportMetaInfo) ||
		(f == kSavesSupportThumbnail) ||
		(f == kSavesSupportCreationDate);
}

bool AgiBase::hasFeature(EngineFeature f) const {
	return
		(f == kSupportsRTL) ||
		(f == kSupportsLoadingDuringRuntime) ||
		(f == kSupportsSavingDuringRuntime);
}


bool AgiMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
	const Agi::AGIGameDescription *gd = (const Agi::AGIGameDescription *)desc;
	bool res = true;

	switch (gd->gameType) {
	case Agi::GType_PreAGI:
		*engine = new Agi::PreAgiEngine(syst, gd);
		break;
	case Agi::GType_V2:
	case Agi::GType_V3:
		*engine = new Agi::AgiEngine(syst, gd);
		break;
	default:
		res = false;
		error("AGI engine: unknown gameType");
	}

	return res;
}

SaveStateList AgiMetaEngine::listSaves(const char *target) const {
	const uint32 AGIflag = MKTAG('A','G','I',':');
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	char saveDesc[31];
	Common::String pattern = target;
	pattern += ".???";

	filenames = saveFileMan->listSavefiles(pattern);
	sort(filenames.begin(), filenames.end());	// Sort (hopefully ensuring we are sorted numerically..)

	SaveStateList saveList;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + file->size() - 3);

		if (slotNum >= 0 && slotNum <= 999) {
			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
			if (in) {
				uint32 type = in->readUint32BE();
				if (type == AGIflag)
					in->read(saveDesc, 31);
				saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
				delete in;
			}
		}
	}

	return saveList;
}

int AgiMetaEngine::getMaximumSaveSlot() const { return 999; }

void AgiMetaEngine::removeSaveState(const char *target, int slot) const {
	char fileName[MAXPATHLEN];
	sprintf(fileName, "%s.%03d", target, slot);
	g_system->getSavefileManager()->removeSavefile(fileName);
}

SaveStateDescriptor AgiMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
	const uint32 AGIflag = MKTAG('A','G','I',':');
	char fileName[MAXPATHLEN];
	sprintf(fileName, "%s.%03d", target, slot);

	Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(fileName);

	if (in) {
		if (in->readUint32BE() != AGIflag) {
			delete in;
			return SaveStateDescriptor();
		}

		char name[32];
		in->read(name, 31);

		SaveStateDescriptor desc(slot, name);

		desc.setDeletableFlag(slot != 0);
		desc.setWriteProtectedFlag(slot == 0);

		char saveVersion = in->readByte();
		if (saveVersion >= 4) {
			Graphics::Surface *thumbnail = new Graphics::Surface();
			assert(thumbnail);
			if (!Graphics::loadThumbnail(*in, *thumbnail)) {
				delete thumbnail;
				thumbnail = 0;
			}

			desc.setThumbnail(thumbnail);

			uint32 saveDate = in->readUint32BE();
			uint16 saveTime = in->readUint16BE();

			int day = (saveDate >> 24) & 0xFF;
			int month = (saveDate >> 16) & 0xFF;
			int year = saveDate & 0xFFFF;

			desc.setSaveDate(year, month, day);

			int hour = (saveTime >> 8) & 0xFF;
			int minutes = saveTime & 0xFF;

			desc.setSaveTime(hour, minutes);

			// TODO: played time
		}


		delete in;

		return desc;
	}

	return SaveStateDescriptor();
}

const ADGameDescription *AgiMetaEngine::fallbackDetect(const FileMap &allFilesXXX, const Common::FSList &fslist) const {
	typedef Common::HashMap<Common::String, int32> IntMap;
	IntMap allFiles;
	bool matchedUsingFilenames = false;
	bool matchedUsingWag = false;
	int wagFileCount = 0;
	WagFileParser wagFileParser;
	Common::FSNode wagFileNode;
	Common::String description;

	// // Set the defaults for gameid and extra
	_gameid = "agi-fanmade";
	_extra.clear();

	// Set the default values for the fallback descriptor's ADGameDescription part.
	g_fallbackDesc.desc.language = Common::UNK_LANG;
	g_fallbackDesc.desc.platform = Common::kPlatformPC;
	g_fallbackDesc.desc.flags = ADGF_NO_FLAGS;

	// Set default values for the fallback descriptor's AGIGameDescription part.
	g_fallbackDesc.gameID = GID_FANMADE;
	g_fallbackDesc.features = GF_FANMADE;
	g_fallbackDesc.version = 0x2917;

	// First grab all filenames and at the same time count the number of *.wag files
	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
		if (file->isDirectory()) continue;
		Common::String filename = file->getName();
		filename.toLowercase();
		allFiles[filename] = true; // Save the filename in a hash table

		if (filename.hasSuffix(".wag")) {
			// Save latest found *.wag file's path (Can be used to open the file, the name can't)
			wagFileNode = *file;
			wagFileCount++; // Count found *.wag files
		}
	}

	if (allFiles.contains("logdir") && allFiles.contains("object") &&
		allFiles.contains("picdir") && allFiles.contains("snddir") &&
		allFiles.contains("viewdir") && allFiles.contains("vol.0") &&
		allFiles.contains("words.tok")) { // Check for v2

		// The default AGI interpreter version 0x2917 is okay for v2 games
		// so we don't have to change it here.
		matchedUsingFilenames = true;

		// Check for AGIPAL by checking for existence of any of the files "pal.100" - "pal.109"
		bool agipal = false;
		char agipalFile[] = "pal.xxx";
		for (uint i = 100; i <= 109; i++) {
			sprintf(agipalFile, "pal.%d", i);
			if (allFiles.contains(agipalFile)) {
				agipal = true; // We found a file "pal.x" where 100 <= x <= 109 so it's AGIPAL
				break;
			}
		}

		if (agipal) { // Check if it is AGIPAL
			description = "Unknown v2 AGIPAL Game";
			g_fallbackDesc.features |= GF_AGIPAL; // Add AGIPAL feature flag
		} else { // Not AGIPAL so just plain v2
			description = "Unknown v2 Game";
		}
	} else { // Try v3
		char name[8];

		for (IntMap::const_iterator f = allFiles.begin(); f != allFiles.end(); ++f) {
			if (f->_key.hasSuffix("vol.0")) {
				memset(name, 0, 8);
				strncpy(name, f->_key.c_str(), MIN((uint)8, f->_key.size() > 5 ? f->_key.size() - 5 : f->_key.size()));

				if (allFiles.contains("object") && allFiles.contains("words.tok") &&
					allFiles.contains(Common::String(name) + "dir")) {
					matchedUsingFilenames = true;
					description = "Unknown v3 Game";
					g_fallbackDesc.version = 0x3149; // Set the default AGI version for an AGI v3 game
					break;
				}
			}
		}
	}

	// WinAGI produces *.wag file with interpreter version, game name and other parameters.
	// If there's exactly one *.wag file and it parses successfully then we'll use its information.
	if (wagFileCount == 1 && wagFileParser.parse(wagFileNode)) {
		matchedUsingWag = true;

		const WagProperty *wagAgiVer = wagFileParser.getProperty(WagProperty::PC_INTVERSION);
		const WagProperty *wagGameID = wagFileParser.getProperty(WagProperty::PC_GAMEID);
		const WagProperty *wagGameDesc = wagFileParser.getProperty(WagProperty::PC_GAMEDESC);
		const WagProperty *wagGameVer = wagFileParser.getProperty(WagProperty::PC_GAMEVERSION);
		const WagProperty *wagGameLastEdit = wagFileParser.getProperty(WagProperty::PC_GAMELAST);

		// If there is an AGI version number in the *.wag file then let's use it
		if (wagAgiVer != NULL && wagFileParser.checkAgiVersionProperty(*wagAgiVer)) {
			// TODO/FIXME: Check that version number is something we support before trying to use it.
			//     If the version number is unsupported then it'll get switched to 0x2917 later.
			//     But there's the possibility that file based detection has detected something else
			//     than a v2 AGI game. So there's a possibility for conflicting information.
			g_fallbackDesc.version = wagFileParser.convertToAgiVersionNumber(*wagAgiVer);
		}

		// Set gameid according to *.wag file information if it's present and it doesn't contain whitespace.
		if (wagGameID != NULL && !Common::String(wagGameID->getData()).contains(" ")) {
			_gameid = wagGameID->getData();
			debug(3, "Agi::fallbackDetector: Using game id (%s) from WAG file", _gameid.c_str());
		}

		// Set game description and extra according to *.wag file information if they're present
		if (wagGameDesc != NULL) {
			description = wagGameDesc->getData();
			debug(3, "Agi::fallbackDetector: Game description (%s) from WAG file", wagGameDesc->getData());

			// If there's game version in the *.wag file, set extra to it
			if (wagGameVer != NULL) {
				_extra = wagGameVer->getData();
				debug(3, "Agi::fallbackDetector: Game version (%s) from WAG file", wagGameVer->getData());
			}

			// If there's game last edit date in the *.wag file, add it to extra
			if (wagGameLastEdit != NULL) {
				if (!_extra.empty())
					_extra += " ";
				_extra += wagGameLastEdit->getData();
				debug(3, "Agi::fallbackDetector: Game's last edit date (%s) from WAG file", wagGameLastEdit->getData());
			}
		}
	} else if (wagFileCount > 1) { // More than one *.wag file, confusing! So let's not use them.
		warning("More than one (%d) *.wag files found. WAG files ignored", wagFileCount);
	}

	// Check that the AGI interpreter version is a supported one
	if (!(g_fallbackDesc.version >= 0x2000 && g_fallbackDesc.version < 0x4000)) {
		warning("Unsupported AGI interpreter version 0x%x in AGI's fallback detection. Using default 0x2917", g_fallbackDesc.version);
		g_fallbackDesc.version = 0x2917;
	}

	// Set game type (v2 or v3) according to the AGI interpreter version number
	if (g_fallbackDesc.version >= 0x2000 && g_fallbackDesc.version < 0x3000)
		g_fallbackDesc.gameType = GType_V2;
	else if (g_fallbackDesc.version >= 0x3000 && g_fallbackDesc.version < 0x4000)
		g_fallbackDesc.gameType = GType_V3;

	// Check if we found a match with any of the fallback methods
	if (matchedUsingWag || matchedUsingFilenames) {
		_extra = description + (!_extra.empty() ? " " : "") + _extra; // Let's combine the description and extra

		// Override the gameid & extra values in g_fallbackDesc.desc. This only works
		// until the fallback detector is called again, and while the MetaEngine instance
		// is alive (as else the string storage is modified/deleted).
		g_fallbackDesc.desc.gameid = _gameid.c_str();
		g_fallbackDesc.desc.extra = _extra.c_str();

		printf("Your game version has been detected using fallback matching as a\n");
		printf("variant of %s (%s).\n", g_fallbackDesc.desc.gameid, g_fallbackDesc.desc.extra);
		printf("If this is an original and unmodified version or new made Fanmade game,\n");
		printf("please report any, information previously printed by ScummVM to the team.\n");

		return (const ADGameDescription *)&g_fallbackDesc;
	}

	return 0;
}

#if PLUGIN_ENABLED_DYNAMIC(AGI)
	REGISTER_PLUGIN_DYNAMIC(AGI, PLUGIN_TYPE_ENGINE, AgiMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(AGI, PLUGIN_TYPE_ENGINE, AgiMetaEngine);
#endif

namespace Agi {

bool AgiBase::canLoadGameStateCurrently() {
	return (!(getGameType() == GType_PreAGI) && getflag(fMenusWork) && !_noSaveLoadAllowed);
}

bool AgiBase::canSaveGameStateCurrently() {
	if (getGameID() == GID_BC) // Technically in Black Cauldron we may save anytime
		return true;
	
	return (!(getGameType() == GType_PreAGI) && getflag(fMenusWork) && !_noSaveLoadAllowed && _game.inputEnabled);
}

int AgiEngine::agiDetectGame() {
	int ec = errOK;

	assert(_gameDescription != NULL);

	if (getVersion() <= 0x2999) {
		_loader = new AgiLoader_v2(this);
	} else {
		_loader = new AgiLoader_v3(this);
	}
	ec = _loader->detectGame();

	return ec;
}

} // End of namespace Agi