aboutsummaryrefslogtreecommitdiff
path: root/engines/sword1/detection.cpp
blob: e4c068e667a345a96a6667f24fd4d9d064c4f9dc (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
/* 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.
 *
 */

#include "sword1/sword1.h"
#include "sword1/control.h"

#include "base/plugins.h"
#include "common/fs.h"
#include "common/savefile.h"
#include "common/system.h"
#include "graphics/thumbnail.h"
#include "graphics/surface.h"

#include "engines/metaengine.h"

/* Broken Sword */
static const PlainGameDescriptor sword1FullSettings =
	{"sword1", "Broken Sword: The Shadow of the Templars"};
static const PlainGameDescriptor sword1DemoSettings =
	{"sword1demo", "Broken Sword: The Shadow of the Templars (Demo)"};
static const PlainGameDescriptor sword1MacFullSettings =
	{"sword1mac", "Broken Sword: The Shadow of the Templars (Mac)"};
static const PlainGameDescriptor sword1MacDemoSettings =
	{"sword1macdemo", "Broken Sword: The Shadow of the Templars (Mac demo)"};
static const PlainGameDescriptor sword1PSXSettings =
	{"sword1psx", "Broken Sword: The Shadow of the Templars (PlayStation)"};
static const PlainGameDescriptor sword1PSXDemoSettings =
	{"sword1psxdemo", "Broken Sword: The Shadow of the Templars (PlayStation demo)"};


// check these subdirectories (if present)
static const char *const g_dirNames[] = { "clusters", "speech", "english", "italian"};

#define NUM_COMMON_FILES_TO_CHECK 1
#define NUM_PC_FILES_TO_CHECK 3
#define NUM_MAC_FILES_TO_CHECK 4
#define NUM_PSX_FILES_TO_CHECK 1
#define NUM_PSX_DEMO_FILES_TO_CHECK 2
#define NUM_DEMO_FILES_TO_CHECK 1
#define NUM_MAC_DEMO_FILES_TO_CHECK 1

#define NUM_FILES_TO_CHECK NUM_COMMON_FILES_TO_CHECK + NUM_PC_FILES_TO_CHECK + NUM_MAC_FILES_TO_CHECK + NUM_PSX_FILES_TO_CHECK + NUM_DEMO_FILES_TO_CHECK + NUM_MAC_DEMO_FILES_TO_CHECK + NUM_PSX_DEMO_FILES_TO_CHECK
static const char *const g_filesToCheck[NUM_FILES_TO_CHECK] = { // these files have to be found
	"swordres.rif", // Mac, PC and PSX version
	"general.clu", // PC and PSX version
	"compacts.clu", // PC and PSX version
	"scripts.clu", // PC and PSX version
	"general.clm", // Mac version only
	"compacts.clm", // Mac version only
	"scripts.clm", // Mac version only
	"paris2.clm", // Mac version (full game only)
	"cows.mad", // this one should only exist in the demo version
	"scripts.clm", // Mac version both demo and full game
	"train.plx", // PSX version only
	"speech.dat", // PSX version only
	"tunes.dat", // PSX version only
	// the engine needs several more files to work, but checking these should be sufficient
};

class SwordMetaEngine : public MetaEngine {
public:
	virtual const char *getName() const {
		return "Sword1";
	}
	virtual const char *getOriginalCopyright() const {
		return "Broken Sword Games (C) Revolution";
	}

	virtual bool hasFeature(MetaEngineFeature f) const;
	virtual GameList getSupportedGames() const;
	virtual GameDescriptor findGame(const char *gameid) const;
	virtual GameList detectGames(const Common::FSList &fslist) 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;

	virtual Common::Error createInstance(OSystem *syst, Engine **engine) const;
};

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

bool Sword1::SwordEngine::hasFeature(EngineFeature f) const {
	return
	    (f == kSupportsRTL) ||
	    (f == kSupportsSavingDuringRuntime) ||
	    (f == kSupportsLoadingDuringRuntime);
}

GameList SwordMetaEngine::getSupportedGames() const {
	GameList games;
	games.push_back(GameDescriptor(sword1FullSettings, Common::GUIO_NOMIDI));
	games.push_back(GameDescriptor(sword1DemoSettings, Common::GUIO_NOMIDI));
	games.push_back(GameDescriptor(sword1MacFullSettings, Common::GUIO_NOMIDI));
	games.push_back(GameDescriptor(sword1MacDemoSettings, Common::GUIO_NOMIDI));
	games.push_back(GameDescriptor(sword1PSXSettings, Common::GUIO_NOMIDI));
	games.push_back(GameDescriptor(sword1PSXDemoSettings, Common::GUIO_NOMIDI));
	return games;
}

GameDescriptor SwordMetaEngine::findGame(const char *gameid) const {
	if (0 == scumm_stricmp(gameid, sword1FullSettings.gameid))
		return sword1FullSettings;
	if (0 == scumm_stricmp(gameid, sword1DemoSettings.gameid))
		return sword1DemoSettings;
	if (0 == scumm_stricmp(gameid, sword1MacFullSettings.gameid))
		return sword1MacFullSettings;
	if (0 == scumm_stricmp(gameid, sword1MacDemoSettings.gameid))
		return sword1MacDemoSettings;
	if (0 == scumm_stricmp(gameid, sword1PSXSettings.gameid))
		return sword1PSXSettings;
	if (0 == scumm_stricmp(gameid, sword1PSXDemoSettings.gameid))
		return sword1PSXDemoSettings;
	return GameDescriptor();
}

void Sword1CheckDirectory(const Common::FSList &fslist, bool *filesFound) {
	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
		if (!file->isDirectory()) {
			const char *fileName = file->getName().c_str();
			for (int cnt = 0; cnt < NUM_FILES_TO_CHECK; cnt++)
				if (scumm_stricmp(fileName, g_filesToCheck[cnt]) == 0)
					filesFound[cnt] = true;
		} else {
			for (int cnt = 0; cnt < ARRAYSIZE(g_dirNames); cnt++)
				if (scumm_stricmp(file->getName().c_str(), g_dirNames[cnt]) == 0) {
					Common::FSList fslist2;
					if (file->getChildren(fslist2, Common::FSNode::kListFilesOnly))
						Sword1CheckDirectory(fslist2, filesFound);
				}
		}
	}
}

GameList SwordMetaEngine::detectGames(const Common::FSList &fslist) const {
	int i, j;
	GameList detectedGames;
	bool filesFound[NUM_FILES_TO_CHECK];
	for (i = 0; i < NUM_FILES_TO_CHECK; i++)
		filesFound[i] = false;

	Sword1CheckDirectory(fslist, filesFound);
	bool mainFilesFound = true;
	bool pcFilesFound = true;
	bool macFilesFound = true;
	bool demoFilesFound = true;
	bool macDemoFilesFound = true;
	bool psxFilesFound = true;
	bool psxDemoFilesFound = true;
	for (i = 0; i < NUM_COMMON_FILES_TO_CHECK; i++)
		if (!filesFound[i])
			mainFilesFound = false;
	for (j = 0; j < NUM_PC_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i])
			pcFilesFound = false;
	for (j = 0; j < NUM_MAC_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i])
			macFilesFound = false;
	for (j = 0; j < NUM_DEMO_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i])
			demoFilesFound = false;
	for (j = 0; j < NUM_DEMO_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i])
			macDemoFilesFound = false;
	for (j = 0; j < NUM_PSX_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i])
			psxFilesFound = false;
	for (j = 0; j < NUM_PSX_DEMO_FILES_TO_CHECK; i++, j++)
		if (!filesFound[i] || psxFilesFound)
			psxDemoFilesFound = false;

	if (mainFilesFound && pcFilesFound && demoFilesFound)
		detectedGames.push_back(GameDescriptor(sword1DemoSettings, Common::GUIO_NOMIDI));
	else if (mainFilesFound && pcFilesFound && psxFilesFound)
		detectedGames.push_back(GameDescriptor(sword1PSXSettings, Common::GUIO_NOMIDI));
	else if (mainFilesFound && pcFilesFound && psxDemoFilesFound)
		detectedGames.push_back(GameDescriptor(sword1PSXDemoSettings, Common::GUIO_NOMIDI));
	else if (mainFilesFound && pcFilesFound && !psxFilesFound)
		detectedGames.push_back(GameDescriptor(sword1FullSettings, Common::GUIO_NOMIDI));
	else if (mainFilesFound && macFilesFound)
		detectedGames.push_back(GameDescriptor(sword1MacFullSettings, Common::GUIO_NOMIDI));
	else if (mainFilesFound && macDemoFilesFound)
		detectedGames.push_back(GameDescriptor(sword1MacDemoSettings, Common::GUIO_NOMIDI));

	return detectedGames;
}

Common::Error SwordMetaEngine::createInstance(OSystem *syst, Engine **engine) const {
	assert(engine);
	*engine = new Sword1::SwordEngine(syst);
	return Common::kNoError;
}

SaveStateList SwordMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	SaveStateList saveList;
	char saveName[40];

	Common::StringArray filenames = saveFileMan->listSavefiles("sword1.???");
	sort(filenames.begin(), filenames.end());   // Sort (hopefully ensuring we are sorted numerically..)

	int slotNum = 0;
	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
		slotNum = atoi(file->c_str() + file->size() - 3);

		if (slotNum >= 0 && slotNum <= 999) {
			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
			if (in) {
				in->readUint32LE(); // header
				in->read(saveName, 40);
				saveList.push_back(SaveStateDescriptor(slotNum, saveName));
				delete in;
			}
		}
	}

	return saveList;
}

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

void SwordMetaEngine::removeSaveState(const char *target, int slot) const {
	g_system->getSavefileManager()->removeSavefile(Common::String::format("sword1.%03d", slot));
}

SaveStateDescriptor SwordMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
	Common::String fileName = Common::String::format("sword1.%03d", slot);
	char name[40];
	uint32 playTime = 0;
	byte versionSave;

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

	if (in) {
		in->skip(4);        // header
		in->read(name, sizeof(name));
		in->read(&versionSave, 1);      // version

		SaveStateDescriptor desc(slot, name);

		desc.setDeletableFlag(true);
		desc.setWriteProtectedFlag(false);

		if (versionSave < 2) // These older version of the savegames used a flag to signal presence of thumbnail
			in->skip(1);

		if (Graphics::checkThumbnailHeader(*in)) {
			Graphics::Surface *const thumbnail = Graphics::loadThumbnail(*in);
			desc.setThumbnail(thumbnail);
		}

		uint32 saveDate = in->readUint32BE();
		uint16 saveTime = in->readUint16BE();
		if (versionSave > 1) // Previous versions did not have playtime data
			playTime = in->readUint32BE();

		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);

		if (versionSave > 1) {
			desc.setPlayTime(playTime * 1000);
		} else { //We have no playtime data
			desc.setPlayTime(0);
		}

		delete in;

		return desc;
	}

	return SaveStateDescriptor();
}

#if PLUGIN_ENABLED_DYNAMIC(SWORD1)
	REGISTER_PLUGIN_DYNAMIC(SWORD1, PLUGIN_TYPE_ENGINE, SwordMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(SWORD1, PLUGIN_TYPE_ENGINE, SwordMetaEngine);
#endif

namespace Sword1 {

Common::Error SwordEngine::loadGameState(int slot) {
	_systemVars.forceRestart = false;
	_systemVars.controlPanelMode = CP_NORMAL;
	_control->restoreGameFromFile(slot);
	reinitialize();
	_control->doRestore();
	reinitRes();
	return Common::kNoError;    // TODO: return success/failure
}

bool SwordEngine::canLoadGameStateCurrently() {
	return (mouseIsActive() && !_control->isPanelShown()); // Disable GMM loading when game panel is shown
}

Common::Error SwordEngine::saveGameState(int slot, const Common::String &desc) {
	_control->setSaveDescription(slot, desc.c_str());
	_control->saveGameToFile(slot);
	return Common::kNoError;    // TODO: return success/failure
}

bool SwordEngine::canSaveGameStateCurrently() {
	return (mouseIsActive() && !_control->isPanelShown());
}

} // End of namespace Sword1