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
|
/* 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 "common/scummsys.h"
#include "zvision/core/save_manager.h"
#include "zvision/zvision.h"
#include "zvision/scripting/script_manager.h"
#include "zvision/graphics/render_manager.h"
#include "common/system.h"
#include "graphics/surface.h"
#include "graphics/thumbnail.h"
#include "gui/message.h"
namespace ZVision {
const uint32 SaveManager::SAVEGAME_ID = MKTAG('Z', 'E', 'N', 'G');
void SaveManager::saveGame(uint slot, const Common::String &saveName) {
// The games only support 20 slots
assert(slot <= 1 && slot <= 20);
Common::SaveFileManager *saveFileManager = g_system->getSavefileManager();
Common::OutSaveFile *file = saveFileManager->openForSaving(_engine->generateSaveFileName(slot));
// Write out the savegame header
file->writeUint32BE(SAVEGAME_ID);
// Write version
file->writeByte(SAVE_VERSION);
// Write savegame name
file->writeString(saveName);
file->writeByte(0);
// We can't call writeGameSaveData because the save menu is actually
// a room, so writeGameSaveData would save us in the save menu.
// However, an auto save is performed before each room change, so we
// can copy the data from there. We can guarantee that an auto save file will
// exist before this is called because the save menu can only be accessed
// after the first room (the main menu) has loaded.
Common::InSaveFile *autoSaveFile = saveFileManager->openForLoading(_engine->generateAutoSaveFileName());
// Skip over the header info
autoSaveFile->readSint32BE(); // SAVEGAME_ID
autoSaveFile->readByte(); // Version
autoSaveFile->seek(5, SEEK_CUR); // The string "auto" with terminating NULL
// Read the rest to a buffer
uint32 size = autoSaveFile->size() - autoSaveFile->pos();
byte *buffer = new byte[size];
autoSaveFile->read(buffer, size);
// Then write the buffer to the new file
file->write(buffer, size);
// Cleanup
delete[] buffer;
file->finalize();
delete file;
}
void SaveManager::autoSave() {
Common::OutSaveFile *file = g_system->getSavefileManager()->openForSaving(_engine->generateAutoSaveFileName());
// Write out the savegame header
file->writeUint32BE(SAVEGAME_ID);
// Version
file->writeByte(SAVE_VERSION);
file->writeString("auto");
file->writeByte(0);
writeSaveGameData(file);
// Cleanup
file->finalize();
delete file;
}
void SaveManager::writeSaveGameData(Common::OutSaveFile *file) {
// Create a thumbnail and save it
Graphics::saveThumbnail(*file);
// Write out the save date/time
TimeDate td;
g_system->getTimeAndDate(td);
file->writeSint16LE(td.tm_year + 1900);
file->writeSint16LE(td.tm_mon + 1);
file->writeSint16LE(td.tm_mday);
file->writeSint16LE(td.tm_hour);
file->writeSint16LE(td.tm_min);
ScriptManager *scriptManager = _engine->getScriptManager();
// Write out the current location
Location currentLocation = scriptManager->getCurrentLocation();
file->writeByte(currentLocation.world);
file->writeByte(currentLocation.room);
file->writeByte(currentLocation.node);
file->writeByte(currentLocation.view);
file->writeUint32LE(currentLocation.offset);
// Write out the current state table values
scriptManager->serializeStateTable(file);
// Write out any controls needing to save state
scriptManager->serializeControls(file);
}
Common::Error SaveManager::loadGame(uint slot) {
// The games only support 20 slots
assert(slot <= 1 && slot <= 20);
Common::InSaveFile *saveFile = g_system->getSavefileManager()->openForLoading(_engine->generateSaveFileName(slot));
if (saveFile == 0) {
return Common::kPathDoesNotExist;
}
// Read the header
SaveGameHeader header;
if (!readSaveGameHeader(saveFile, header)) {
return Common::kUnknownError;
}
char world = (char)saveFile->readByte();
char room = (char)saveFile->readByte();
char node = (char)saveFile->readByte();
char view = (char)saveFile->readByte();
uint32 offset = (char)saveFile->readUint32LE();
ScriptManager *scriptManager = _engine->getScriptManager();
// Update the state table values
scriptManager->deserializeStateTable(saveFile);
// Load the room
scriptManager->changeLocation(world, room, node, view, offset);
// Update the controls
scriptManager->deserializeControls(saveFile);
return Common::kNoError;
}
bool SaveManager::readSaveGameHeader(Common::InSaveFile *in, SaveGameHeader &header) {
if (in->readUint32BE() != SAVEGAME_ID) {
warning("File is not a ZVision save file. Aborting load");
return false;
}
// Read in the version
header.version = in->readByte();
// Check that the save version isn't newer than this binary
if (header.version > SAVE_VERSION) {
uint tempVersion = header.version;
GUI::MessageDialog dialog(Common::String::format("This save file uses version %u, but this engine only supports up to version %d. You will need an updated version of the engine to use this save file.", tempVersion, SAVE_VERSION), "OK");
dialog.runModal();
}
// Read in the save name
header.saveName.clear();
char ch;
while ((ch = (char)in->readByte()) != '\0')
header.saveName += ch;
// Get the thumbnail
header.thumbnail = Graphics::loadThumbnail(*in);
if (!header.thumbnail)
return false;
// Read in save date/time
header.saveYear = in->readSint16LE();
header.saveMonth = in->readSint16LE();
header.saveDay = in->readSint16LE();
header.saveHour = in->readSint16LE();
header.saveMinutes = in->readSint16LE();
return true;
}
} // End of namespace ZVision
|
