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
|
/* 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.
*
*/
#ifndef GOB_PREGOB_SEQFILE_H
#define GOB_PREGOB_SEQFILE_H
#include "common/system.h"
#include "common/array.h"
#include "common/list.h"
#include "gob/util.h"
namespace Common {
class String;
class SeekableReadStream;
}
namespace Gob {
class GobEngine;
class DECFile;
class ANIFile;
class ANIObject;
/** A SEQ file, describing a complex animation sequence.
*
* Used in early hardcoded gob games.
* The principle is similar to the Mult class (see mult.h), but instead
* of depending on all the externally loaded animations, backgrounds and
* objects, a SEQ file references animation and background directly by
* filename.
*/
class SEQFile {
public:
SEQFile(GobEngine *vm, const Common::String &fileName);
virtual ~SEQFile();
/** Play the SEQ.
*
* @param abortable If true, end playback on any user input.
* @param endFrame The frame on where to end, or 0xFFFF for infinite playback.
* @param frameRate The frame rate at which to play the SEQ, or 0 for playing at
* the speed the SEQ itself wants to.
*/
void play(bool abortable = true, uint16 endFrame = 0xFFFF, uint16 frameRate = 0);
protected:
GobEngine *_vm;
/** Returns the current frame number. */
uint16 getFrame() const;
/** Seek to a specific frame. */
void seekFrame(uint16 frame);
/** Add a frame loop. */
uint addLoop(uint16 startFrame, uint16 endFrame, uint16 loopCount);
/** Skip a frame loop. */
void skipLoop(uint loopID);
/** Delete a frame loop. */
void delLoop(uint loopID);
/** Ends SEQ playback. */
void abortPlay();
/** Callback for special frame events. */
virtual void handleFrameEvent();
/** Callback for special user input handling. */
virtual void handleInput(int16 key, int16 mouseX, int16 mouseY, MouseButtons mouseButtons);
private:
/** Number of animation objects that are visible at the same time. */
static const uint kObjectCount = 4;
/** A key for changing the background. */
struct BackgroundKey {
uint16 frame; ///< Frame the change is to happen.
const DECFile *background; ///< The background to use.
};
/** A key for playing an object animation. */
struct AnimationKey {
uint object; ///< The object this key belongs to.
uint16 frame; ///< Frame the change is to happen.
const ANIFile *ani; ///< The ANI to use.
uint16 animation; ///< The animation to use.
int16 x; ///< X position of the animation.
int16 y; ///< Y position of the animation.
int16 order; ///< Used to determine in which order to draw the objects.
};
/** A managed animation object. */
struct Object {
ANIObject *object; ///< The actual animation object.
int16 order; ///< The current drawing order.
};
/** A frame loop. */
struct Loop {
uint16 startFrame;
uint16 endFrame;
uint16 loopCount;
uint16 currentLoop;
bool empty;
};
typedef Common::Array<DECFile *> Backgrounds;
typedef Common::Array<ANIFile *> Animations;
typedef Common::Array<BackgroundKey> BackgroundKeys;
typedef Common::Array<AnimationKey> AnimationKeys;
typedef Common::List<Object> Objects;
typedef Common::Array<Loop> Loops;
uint16 _frame; ///< The current frame.
bool _abortPlay; ///< Was the end of the playback requested?
uint16 _frameRate;
Backgrounds _backgrounds; ///< All backgrounds in this SEQ.
Animations _animations; ///< All animations in this SEQ.
BackgroundKeys _bgKeys; ///< The background change keyframes.
AnimationKeys _animKeys; ///< The animation change keyframes.
Object _objects[kObjectCount]; ///< The managed animation objects.
Loops _loops;
/** Whether the playback should be abortable by user input. */
bool _abortable;
// -- Loading helpers --
void load(Common::SeekableReadStream &seq);
const ANIFile *findANI(uint16 index, uint16 &animation);
// -- Playback helpers --
void playFrame();
/** Get a list of objects ordered by drawing order. */
Objects getOrderedObjects();
void clearAnims(); ///< Remove all animation frames.
void drawAnims(); ///< Draw the animation frames.
/** Look if we can compact the loop array. */
void cleanLoops();
};
} // End of namespace Gob
#endif // GOB_PREGOB_SEQFILE_H
|
