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
|
/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* 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.
*
*/
#ifndef STARK_SERVICES_STATE_PROVIDER_H
#define STARK_SERVICES_STATE_PROVIDER_H
#include "common/hashmap.h"
#include "common/serializer.h"
#include "common/hash-str.h"
#include "common/stream.h"
#include "common/substream.h"
#include "math/mathfwd.h"
#include "engines/stark/resourcereference.h"
namespace Stark {
namespace Resources {
class Object;
class Level;
class Location;
}
class StateReadStream : public Common::SeekableSubReadStream {
public:
StateReadStream(Common::SeekableReadStream *parentStream, DisposeAfterUse::Flag disposeParentStream = DisposeAfterUse::YES);
virtual ~StateReadStream();
Common::String readString();
};
class ResourceSerializer : public Common::Serializer {
public:
ResourceSerializer(Common::SeekableReadStream *in, Common::WriteStream *out, uint32 version);
void syncAsFloat(float &value);
void syncAsVector3d(Math::Vector3d &value);
void syncAsResourceReference(ResourceReference &reference);
void syncAsString32(Common::String &string);
template<typename T>
void syncAsResourceReference(T **object);
template<typename T>
void syncArraySize(Common::Array<T> &array, Version minVersion = 0, Version maxVersion = kLastVersion);
};
template<typename T>
void ResourceSerializer::syncAsResourceReference(T **object) {
assert(object);
if (isLoading()) {
ResourceReference reference;
reference.loadFromStream(_loadStream);
*object = reference.resolve<T>();
} else {
ResourceReference reference;
reference.buildFromResource(*object);
reference.saveToStream(_saveStream);
}
}
template<typename T>
void ResourceSerializer::syncArraySize(Common::Array<T> &array, Version minVersion, Version maxVersion) {
if (_version < minVersion || _version > maxVersion)
return; // Ignore anything which is not supposed to be present in this save game version
uint32 size = array.size();
syncAsUint32LE(size);
if (isLoading()) {
array.resize(size);
}
}
/**
* Resource state provider.
*
* Maintains a serialized version of the state of the resource trees.
*/
class StateProvider {
public:
~StateProvider();
void restoreLevelState(Resources::Level *level);
void restoreCurrentLevelState(Resources::Level *level);
void restoreLocationState(Resources::Level *level, Resources::Location *location);
void restoreCurrentLocationState(Resources::Level *level, Resources::Location *location);
void restoreGlobalState(Resources::Level *level);
void saveLevelState(Resources::Level *level);
void saveCurrentLevelState(Resources::Level *level);
void saveLocationState(Resources::Level *level, Resources::Location *location);
void saveCurrentLocationState(Resources::Level *level, Resources::Location *location);
void saveGlobalState(Resources::Level *level);
/** Replace the current states by those read from the stream */
void readStateFromStream(StateReadStream *stream, uint saveVersion);
/** Write the states in the store to a stream */
void writeStateToStream(Common::WriteStream *stream);
static const uint kMinSaveVersion = 6;
static const uint kSaveVersion = 9;
private:
class ResourceTreeState {
public:
ResourceTreeState(uint32 size, byte *data, uint32 version);
~ResourceTreeState();
uint32 getVersion() const { return _version; }
uint32 getSize() const { return _size; }
byte *getData() const { return _data; }
private:
uint32 _version;
uint32 _size;
byte *_data;
};
typedef Common::HashMap<Common::String, ResourceTreeState *> ResourceTreeStateMap;
void restoreResourceTreeState(Common::String storeKey, Resources::Object *root, bool current);
void saveResourceTreeState(Common::String storeKey, Resources::Object *root, bool current);
void readResourceTree(Resources::Object *resource, Common::SeekableReadStream *stream, bool current, uint32 version);
void writeResourceTree(Resources::Object *resource, Common::WriteStream *stream, bool current);
void clear();
ResourceTreeStateMap _stateStore;
};
} // End of namespace Stark
#endif // STARK_SERVICES_STATE_PROVIDER_H
|
