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
|
/* 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.
*
* $URL$
* $Id$
*
*/
#include "common/file.h"
#include "common/savefile.h"
#include "m4/m4.h"
#include "m4/saveload.h"
#include "m4/sprite.h"
namespace M4 {
const char *orionSavesList = "saves.dir";
SaveLoad::SaveLoad(MadsM4Engine *vm) : _vm(vm) {
// For Orion Burger, check the existance of a 'saves.dir' file to determine whether to
// act exactly like the original. Otherwise, we'll use the ScummVM standard, where we'll
// keep all the data for a savegame in a single file
Common::File file;
_emulateOriginal = file.exists(orionSavesList);
}
const char *SaveLoad::generateSaveName(int slotNumber) {
static char buffer[15];
sprintf(buffer, _emulateOriginal ? "burg%.3d.sav" : "burger.%.3d", slotNumber);
return buffer;
}
bool SaveLoad::hasSaves() {
// Return true if a savegame file exists for the first slot
if (_emulateOriginal) {
Common::File f;
return f.exists(generateSaveName(1));
} else {
Common::ReadStream *f = _vm->saveManager()->openForLoading(generateSaveName(1));
if (f == NULL)
return false;
delete f;
return true;
}
}
SaveGameList *SaveLoad::getSaves() {
SaveGameList *result = new SaveGameList();
char saveName[MAX_SAVEGAME_NAME];
Common::ReadStream *f = NULL;
if (_emulateOriginal) {
Common::File *saveFile = new Common::File();
saveFile->open(orionSavesList);
f = saveFile;
}
for (int slotNumber = 1; slotNumber <= 99; ++slotNumber) {
if (_emulateOriginal) {
// Read in savegame name from save directory
bool isPresent = (f->readByte() != 0);
f->read(&saveName[0], MAX_SAVEGAME_NAME);
if (isPresent)
result->push_back(Common::String(saveName));
else {
result->push_back(Common::String());
}
} else {
// Read in savegame name from savegame files directly
Common::ReadStream *saveFile = _vm->saveManager()->openForLoading(
generateSaveName(slotNumber));
if (!saveFile) {
// No savegame prsent at that slot
result->push_back(Common::String());
} else {
// Skip over byte offset
assert(saveFile->readUint32LE() < 0x100);
// Read in savegame name
saveFile->read(&saveName[0], MAX_SAVEGAME_NAME);
result->push_back(Common::String(saveName));
delete saveFile;
}
}
}
if (_emulateOriginal)
delete f;
return result;
}
M4Surface *SaveLoad::getThumbnail(int slotNumber) {
Common::SeekableReadStream *saveFile;
uint32 dataOffset;
if (_emulateOriginal) {
// Get savegame file from original game folder
Common::File *f = new Common::File();
if (!f->open(generateSaveName(slotNumber))) {
delete f;
return NULL;
}
saveFile = f;
} else {
// Open up savegame for access via savefile manager
saveFile = _vm->saveManager()->openForLoading(generateSaveName(slotNumber));
}
if (!saveFile)
return NULL;
dataOffset = saveFile->readUint32LE();
assert(dataOffset < 0x100);
saveFile->seek(dataOffset, SEEK_CUR);
// Read in the sprite data
saveFile->seek(16, SEEK_CUR);
int width = saveFile->readUint32LE();
int height = saveFile->readUint32LE();
saveFile->seek(21, SEEK_CUR);
saveFile->readUint32LE(); // sprite data size
M4Sprite *result = new M4Sprite(saveFile, 0, 0, width, height);
delete saveFile;
return result;
}
bool SaveLoad::load(int slotNumber) {
// TODO: Currently it's hardcoded to return a failure
return false;
}
bool SaveLoad::save(int slotNumber, Common::String saveName) {
// TODO: Currently it's hardcoded to return a failure
return false;
}
} // End of namespace M4
|
