1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "common/savefile.h"
24
25 #include "sludge/allfiles.h"
26 #include "sludge/backdrop.h"
27 #include "sludge/bg_effects.h"
28 #include "sludge/cursors.h"
29 #include "sludge/event.h"
30 #include "sludge/floor.h"
31 #include "sludge/fonttext.h"
32 #include "sludge/function.h"
33 #include "sludge/graphics.h"
34 #include "sludge/language.h"
35 #include "sludge/loadsave.h"
36 #include "sludge/moreio.h"
37 #include "sludge/newfatal.h"
38 #include "sludge/objtypes.h"
39 #include "sludge/people.h"
40 #include "sludge/region.h"
41 #include "sludge/savedata.h"
42 #include "sludge/sludge.h"
43 #include "sludge/sludger.h"
44 #include "sludge/sound.h"
45 #include "sludge/sprites.h"
46 #include "sludge/statusba.h"
47 #include "sludge/speech.h"
48 #include "sludge/utf8.h"
49 #include "sludge/variable.h"
50 #include "sludge/version.h"
51 #include "sludge/zbuffer.h"
52
53 namespace Sludge {
54
55 //----------------------------------------------------------------------
56 // From elsewhere
57 //----------------------------------------------------------------------
58
59 extern LoadedFunction *saverFunc; // In function.cpp
60 extern LoadedFunction *allRunningFunctions; // In sludger.cpp
61 extern int numGlobals; // In sludger.cpp
62 extern Variable *globalVars; // In sludger.cpp
63 extern FILETIME fileTime; // In sludger.cpp
64 extern bool allowAnyFilename;
65
66 //----------------------------------------------------------------------
67 // Save everything
68 //----------------------------------------------------------------------
69
handleSaveLoad()70 bool handleSaveLoad() {
71 if (!g_sludge->loadNow.empty()) {
72 if (g_sludge->loadNow[0] == ':') {
73 saveGame(g_sludge->loadNow.c_str() + 1);
74 saverFunc->reg.setVariable(SVT_INT, 1);
75 } else {
76 if (!loadGame(g_sludge->loadNow))
77 return false;
78 }
79 g_sludge->loadNow.clear();
80 }
81 return true;
82 }
83
saveGame(const Common::String & fname)84 bool saveGame(const Common::String &fname) {
85 Common::OutSaveFile *fp = g_system->getSavefileManager()->openForSaving(fname);
86
87 if (fp == NULL)
88 return false;
89
90 fp->writeString("SLUDSA");
91 fp->writeByte(0);
92 fp->writeByte(0);
93 fp->writeByte(MAJOR_VERSION);
94 fp->writeByte(MINOR_VERSION);
95
96 if (!g_sludge->_gfxMan->saveThumbnail(fp))
97 return false;
98
99 fp->write(&fileTime, sizeof(FILETIME));
100
101 // DON'T ADD ANYTHING NEW BEFORE THIS POINT!
102
103 fp->writeByte(allowAnyFilename);
104 fp->writeByte(false); // deprecated captureAllKeys
105 fp->writeByte(true);
106 g_sludge->_txtMan->saveFont(fp);
107
108 // Save backdrop
109 g_sludge->_gfxMan->saveBackdrop(fp);
110
111 // Save event handlers
112 g_sludge->_evtMan->saveHandlers(fp);
113
114 // Save regions
115 g_sludge->_regionMan->saveRegions(fp);
116
117 g_sludge->_cursorMan->saveCursor(fp);
118
119 // Save functions
120 LoadedFunction *thisFunction = allRunningFunctions;
121 int countFunctions = 0;
122 while (thisFunction) {
123 countFunctions++;
124 thisFunction = thisFunction->next;
125 }
126 fp->writeUint16BE(countFunctions);
127
128 thisFunction = allRunningFunctions;
129 while (thisFunction) {
130 saveFunction(thisFunction, fp);
131 thisFunction = thisFunction->next;
132 }
133
134 for (int a = 0; a < numGlobals; a++) {
135 globalVars[a].save(fp);
136 }
137
138 g_sludge->_peopleMan->savePeople(fp);
139
140 g_sludge->_floorMan->save(fp);
141
142 g_sludge->_gfxMan->saveZBuffer(fp);
143 g_sludge->_gfxMan->saveLightMap(fp);
144
145 g_sludge->_speechMan->save(fp);
146 saveStatusBars(fp);
147 g_sludge->_soundMan->saveSounds(fp);
148
149 fp->writeUint16BE(CustomSaveHelper::_saveEncoding);
150
151 blur_saveSettings(fp);
152
153 g_sludge->_gfxMan->saveColors(fp);
154
155 g_sludge->_gfxMan->saveParallax(fp);
156 fp->writeByte(0);
157
158 g_sludge->_languageMan->saveLanguageSetting(fp);
159
160 g_sludge->_gfxMan->saveSnapshot(fp);
161
162 fp->flush();
163 fp->finalize();
164 delete fp;
165
166 clearStackLib();
167 return true;
168 }
169
170 //----------------------------------------------------------------------
171 // Load everything
172 //----------------------------------------------------------------------
173
174 int ssgVersion;
175
loadGame(const Common::String & fname)176 bool loadGame(const Common::String &fname) {
177 Common::InSaveFile *fp = g_system->getSavefileManager()->openForLoading(fname);
178 FILETIME savedGameTime;
179
180 while (allRunningFunctions)
181 finishFunction(allRunningFunctions);
182
183 if (fp == NULL)
184 return false;
185
186 bool headerBad = false;
187 if (fp->readByte() != 'S')
188 headerBad = true;
189 if (fp->readByte() != 'L')
190 headerBad = true;
191 if (fp->readByte() != 'U')
192 headerBad = true;
193 if (fp->readByte() != 'D')
194 headerBad = true;
195 if (fp->readByte() != 'S')
196 headerBad = true;
197 if (fp->readByte() != 'A')
198 headerBad = true;
199 if (headerBad) {
200 fatal(ERROR_GAME_LOAD_NO, fname);
201 return NULL;
202 }
203 char c;
204 c = fp->readByte();
205 while ((c = fp->readByte()))
206 ;
207
208 int majVersion = fp->readByte();
209 int minVersion = fp->readByte();
210 ssgVersion = VERSION(majVersion, minVersion);
211
212 if (ssgVersion >= VERSION(1, 4)) {
213 if (!g_sludge->_gfxMan->skipThumbnail(fp))
214 return fatal(ERROR_GAME_LOAD_CORRUPT, fname);
215 }
216
217 uint32 bytes_read = fp->read(&savedGameTime, sizeof(FILETIME));
218 if (bytes_read != sizeof(FILETIME) && fp->err()) {
219 warning("Reading error in loadGame.");
220 }
221
222 if (savedGameTime.dwLowDateTime != fileTime.dwLowDateTime || savedGameTime.dwHighDateTime != fileTime.dwHighDateTime) {
223 return fatal(ERROR_GAME_LOAD_WRONG, fname);
224 }
225
226 // DON'T ADD ANYTHING NEW BEFORE THIS POINT!
227
228 if (ssgVersion >= VERSION(1, 4)) {
229 allowAnyFilename = fp->readByte();
230 }
231 fp->readByte(); // deprecated captureAllKeys
232 fp->readByte(); // updateDisplay (part of movie playing)
233
234 g_sludge->_txtMan->loadFont(ssgVersion, fp);
235
236 g_sludge->_regionMan->kill();
237
238 g_sludge->_gfxMan->loadBackdrop(ssgVersion, fp);
239
240 g_sludge->_evtMan->loadHandlers(fp);
241
242 g_sludge->_regionMan->loadRegions(fp);
243
244 if (!g_sludge->_cursorMan->loadCursor(fp)) {
245 return false;
246 }
247
248 LoadedFunction *rFunc;
249 LoadedFunction **buildList = &allRunningFunctions;
250
251 int countFunctions = fp->readUint16BE();
252 while (countFunctions--) {
253 rFunc = loadFunction(fp);
254 rFunc->next = NULL;
255 (*buildList) = rFunc;
256 buildList = &(rFunc->next);
257 }
258
259 for (int a = 0; a < numGlobals; a++) {
260 globalVars[a].unlinkVar();
261 globalVars[a].load(fp);
262 }
263
264 g_sludge->_peopleMan->loadPeople(fp);
265
266 if (!g_sludge->_floorMan->load(fp)) {
267 return false;
268 }
269
270 if (!g_sludge->_gfxMan->loadZBuffer(fp))
271 return false;
272
273 if (!g_sludge->_gfxMan->loadLightMap(ssgVersion, fp)) {
274 return false;
275 }
276
277 g_sludge->_speechMan->load(fp);
278 loadStatusBars(fp);
279 g_sludge->_soundMan->loadSounds(fp);
280
281 CustomSaveHelper::_saveEncoding = fp->readUint16BE();
282
283 if (ssgVersion >= VERSION(1, 6)) {
284 if (ssgVersion < VERSION(2, 0)) {
285 // aaLoad
286 fp->readByte();
287 fp->readFloatLE();
288 fp->readFloatLE();
289 }
290
291 blur_loadSettings(fp);
292 }
293
294 if (ssgVersion >= VERSION(1, 3)) {
295 g_sludge->_gfxMan->loadColors(fp);
296
297 // Read parallax layers
298 while (fp->readByte()) {
299 int im = fp->readUint16BE();
300 int fx = fp->readUint16BE();
301 int fy = fp->readUint16BE();
302
303 if (!g_sludge->_gfxMan->loadParallax(im, fx, fy))
304 return false;
305 }
306
307 g_sludge->_languageMan->loadLanguageSetting(fp);
308 }
309
310 g_sludge->_gfxMan->nosnapshot();
311 if (ssgVersion >= VERSION(1, 4)) {
312 if (fp->readByte()) {
313 if (!g_sludge->_gfxMan->restoreSnapshot(fp))
314 return false;
315 }
316 }
317
318 delete fp;
319
320 clearStackLib();
321 return true;
322 }
323
324 } // End of namespace Sludge
325