aboutsummaryrefslogtreecommitdiff
path: root/engines/lure/lure.cpp
blob: 8a65861e0f5a0572c6d1502bc8a11fe5e6ffb332 (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
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2005-2006 The ScummVM project
 *
 * 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/stdafx.h"

#include "base/plugins.h"

#include "common/config-manager.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/fs.h"
#include "common/system.h"
#include "common/md5.h"
#include "common/savefile.h"
#include "common/stream.h"

#include "sound/mixer.h"
#include "sound/mididrv.h"
#include "sound/audiostream.h"

#include "lure/luredefs.h"
#include "lure/surface.h"
#include "lure/lure.h"
#include "lure/intro.h"
#include "lure/game.h"
#include "lure/system.h"

namespace Lure {

enum {
	// We only compute MD5 of the first kilobyte of our data files.
	kMD5FileSizeLimit = 1024
};

struct GameSettings {
	const char *gameid;
	const char *description;
	byte id;
	uint32 features;
	Common::Language language;
	const char *md5sum;
	const char *checkFile;
};

//
static const GameSettings lure_games[] = {
	{ "lure", "Lure of the Temptress", GI_LURE, GF_FLOPPY, Common::EN_ANY,
										"b2a8aa6d7865813a17a3c636e063572e", "disk1.vga" },
/*
	{ "lure", "Lure of the Temptress", GI_LURE, GF_FLOPPY, Common::DE_DEU,
										"7aa19e444dab1ac7194d9f7a40ffe54a", "disk1.vga" },
	{ "lure", "Lure of the Temptress", GI_LURE, GF_FLOPPY, Common::FR_FRA,
										"1c94475c1bb7e0e88c1757d3b5377e94", "disk1.vga" },
*/
	{ 0, 0, 0, 0, Common::UNK_LANG, 0, 0 }
};

// Keep list of different supported games

static const PlainGameDescriptor lure_list[] = {
	{ "lure", "Lure of the Temptress" },
	{ 0, 0 }
};

} // End of namespace Lure

using namespace Lure;

GameList Engine_LURE_gameIDList() {
	GameList games;
	const PlainGameDescriptor *g = lure_list;

	while (g->gameid) {
		games.push_back(*g);
		g++;
	}
	return games;
}

GameDescriptor Engine_LURE_findGameID(const char *gameid) {
	const PlainGameDescriptor *g = lure_list;
	while (g->gameid) {
		if (0 == scumm_stricmp(gameid, g->gameid))
			break;
		g++;
	}
	return *g;
}

DetectedGameList Engine_LURE_detectGames(const FSList &fslist) {
	DetectedGameList detectedGames;
	const GameSettings *g;
	FSList::const_iterator file;

	// Iterate over all files in the given directory
	bool isFound = false;
	for (file = fslist.begin(); file != fslist.end(); file++) {
		if (file->isDirectory())
			continue;

		for (g = lure_games; g->gameid; g++) {
			if (scumm_stricmp(file->name().c_str(), g->checkFile) == 0)
				isFound = true;
		}
		if (isFound)
			break;
	}

	if (file == fslist.end())
		return detectedGames;

	uint8 md5sum[16];
	char md5str[32 + 1];

	if (Common::md5_file(*file, md5sum, kMD5FileSizeLimit)) {
		for (int i = 0; i < 16; i++) {
			sprintf(md5str + i * 2, "%02x", (int)md5sum[i]);
		}
		for (g = lure_games; g->gameid; g++) {
			if (strcmp(g->md5sum, (char *)md5str) == 0) {
				DetectedGame dg(*g, g->language);
				dg.updateDesc((g->features & GF_FLOPPY) ? "Floppy" : 0);
				detectedGames.push_back(dg);
			}
		}
		if (detectedGames.empty()) {
			debug("Unknown MD5 (%s)! Please report the details (language, platform, etc.) of this game to the ScummVM team\n", md5str);

			const PlainGameDescriptor *g1 = lure_list;
			while (g1->gameid) {
				detectedGames.push_back(*g1);
				g1++;
			}
		}
	}
	return detectedGames;
}

PluginError Engine_LURE_create(OSystem *syst, Engine **engine) {
	assert(engine);
	*engine = new LureEngine(syst);
	return kNoError;
}

REGISTER_PLUGIN(LURE, "Lure of the Temptress Engine", "Lure of the Temptress (C) Revolution");

namespace Lure {

static LureEngine *int_engine = NULL;

LureEngine::LureEngine(OSystem *system): Engine(system) {

	Common::addSpecialDebugLevel(kLureDebugScripts, "scripts", "Scripts debugging");
	Common::addSpecialDebugLevel(kLureDebugAnimations, "animations", "Animations debugging");
	Common::addSpecialDebugLevel(kLureDebugHotspots, "hotspots", "Hotspots debugging");
	// Setup mixer
/*
	if (!_mixer->isReady()) {
		warning("Sound initialization failed.");
	}

	_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
	_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, ConfMan.getInt("music_volume"));
	_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, ConfMan.getInt("speech_volume"));
*/
	
	_features = 0;
	_game = 0;
}

void LureEngine::detectGame() {
	// Make sure all the needed files are present

	if (!Common::File::exists(SUPPORT_FILENAME))
		error("Missing %s - this is a custom file containing resources from the\n"
			"Lure of the Temptress executable. See the documentation for creating it.",
			SUPPORT_FILENAME);

	for (uint8 fileNum = 1; fileNum <= 4; ++fileNum)
	{
		char sFilename[10];
		sprintf(sFilename, "disk%d.vga", fileNum);

		if (!Common::File::exists(sFilename))
			error("Missing disk%d.vga", fileNum);
	}

	// Check the version of the lure.dat file
	Common::File f;
	if (!f.open(SUPPORT_FILENAME)) {
		error("Error opening %s for validation", SUPPORT_FILENAME);
	} else {
		f.seek(0xbf * 8);
		VersionStructure version;
		f.read(&version, sizeof(VersionStructure));
		f.close();

		if (READ_LE_UINT16(&version.id) != 0xffff)
			error("Error validating %s - file is invalid or out of date", SUPPORT_FILENAME);
		else if ((version.vMajor != LURE_DAT_MAJOR) || (version.vMinor != LURE_DAT_MINOR))
			error("Incorrect version of %s file - expected %d.%d but got %d.%d",
				SUPPORT_FILENAME, LURE_DAT_MAJOR, LURE_DAT_MINOR, 
				version.vMajor, version.vMinor);
	}

	// Do an md5 check 

	uint8 md5sum[16];
	char md5str[32 + 1];
	const GameSettings *g;
	bool found = false;

	*md5str = 0;

	for (g = lure_games; g->gameid; g++) {
		if (!Common::File::exists(g->checkFile))
			continue;

		if (Common::md5_file(g->checkFile, md5sum, kMD5FileSizeLimit)) {
			for (int j = 0; j < 16; j++) {
				sprintf(md5str + j * 2, "%02x", (int)md5sum[j]);
			}
		} else
			continue;

		if (strcmp(g->md5sum, (char *)md5str) == 0) {
			_features = g->features;
			_game = g->id;
			_language = g->language;

			if (g->description)
				g_system->setWindowCaption(g->description);

			found = true;
			break;
		}
	}

	if (!found) {
		debug("Unknown MD5 (%s)! Please report the details (language, platform, etc.) of this game to the ScummVM team", md5str);
		_features = GF_LNGUNK || GF_FLOPPY;
		_game = GI_LURE;
	}
}

int LureEngine::init() {
	_system->beginGFXTransaction();
		initCommonGFX(false);
		_system->initSize(FULL_SCREEN_WIDTH, FULL_SCREEN_HEIGHT);
	_system->endGFXTransaction();

	detectGame();
	_sys = new System(_system);
	_disk = new Disk();
	_resources = new Resources();
	_strings = new StringData();
	_screen = new Screen(*_system);
	_mouse = new Mouse();
	_events = new Events();
	_menu = new Menu();
	Surface::initialise();
	_room = new Room();
	int_engine = this;
	return 0;
}

LureEngine::~LureEngine() {
	// Remove all of our debug levels here
	Common::clearAllSpecialDebugLevels();

	// Delete and deinitialise subsystems
	Surface::deinitialise();
	delete _room;
	delete _menu;
	delete _events;
	delete _mouse;
	delete _screen;
	delete _strings;
	delete _resources;
	delete _disk;
	delete _sys;
}

LureEngine &LureEngine::getReference() {
	return *int_engine;
}

int LureEngine::go() {
	if (ConfMan.getInt("boot_param") == 0) {
		// Show the introduction
		Introduction *intro = new Introduction(*_screen, *_system);
		intro->show();
		delete intro;
	}

	// Play the game
	if (!_events->quitFlag) {
		// Play the game
		Game *gameInstance = new Game();
		gameInstance->execute();
		delete gameInstance;
	}

	//quitGame();
	return 0;
}

void LureEngine::quitGame() {
	_system->quit();
}

const char *LureEngine::generateSaveName(int slotNumber) {
	static char buffer[15];

	sprintf(buffer, "lure.%.3d", slotNumber);
	return buffer;
}

bool LureEngine::saveGame(uint8 slotNumber, Common::String &caption) {
	Common::WriteStream *f = this->_saveFileMan->openForSaving(
		generateSaveName(slotNumber));
	if (f == NULL) {
		warning("saveGame: Failed to save slot %d", slotNumber);
		return false;
	}

	f->write("lure", 5);
	f->writeByte(_language);
	f->writeByte(LURE_DAT_MINOR);
	f->writeString(caption);
	f->writeByte(0); // End of string terminator

	Room::getReference().saveToStream(f);
	Resources::getReference().saveToStream(f);

	delete f;
	return true;
}

#define FAILED_MSG "loadGame: Failed to load slot %d"

bool LureEngine::loadGame(uint8 slotNumber) {
	Common::ReadStream *f = this->_saveFileMan->openForLoading(
		generateSaveName(slotNumber));
	if (f == NULL) {
		warning(FAILED_MSG, slotNumber);
		return false;
	}

	// Check for header
	char buffer[5];
	f->read(buffer, 5);
	if (memcmp(buffer, "lure", 5) != 0)
	{
		warning(FAILED_MSG, slotNumber);
		delete f;
		return false;
	}

	// Check language version 
	uint8 language = f->readByte();
	uint8 version = f->readByte();
	if ((language != _language) || (version != LURE_DAT_MINOR))
	{
		warning("loadGame: Failed to load slot %d - incorrect version", slotNumber);
		delete f;
		return false;
	}

	// Read in and discard the savegame caption
	while (f->readByte() != 0) ;

	// Load in the data
	Room::getReference().loadFromStream(f);
	Resources::getReference().loadFromStream(f);

	delete f;
	return true;
}

Common::String *LureEngine::detectSave(int slotNumber) {
	Common::ReadStream *f = this->_saveFileMan->openForLoading(
		generateSaveName(slotNumber));
	if (f == NULL) return NULL;
	Common::String *result = NULL;

	// Check for header
	char buffer[5];
	f->read(&buffer[0], 5);
	if (memcmp(&buffer[0], "lure", 5) == 0) {
		// Check language version 
		uint8 language = f->readByte();
		uint8 version = f->readByte();
		if ((language == _language) && (version == LURE_DAT_MINOR)) {
			// Read in the savegame title
			char saveName[MAX_DESC_SIZE];
			char *p = saveName;
			int decCtr = MAX_DESC_SIZE - 1;
			while ((decCtr > 0) && ((*p++ = f->readByte()) != 0)) --decCtr;
			*p = '\0';
			result = new Common::String(saveName);
		}
	}

	delete f;
	return result;
}

} // End of namespace Lure