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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004-2005 The ScummVM project
*
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
// Background animation management module private header
#ifndef SAGA_ANIMATION_H_
#define SAGA_ANIMATION_H_
#include "saga/stream.h"
namespace Saga {
#define MAX_ANIMATIONS 7
#define DEFAULT_FRAME_TIME 140
#define SAGA_FRAME_START 0xF
#define SAGA_FRAME_END 0x3F
#define SAGA_FRAME_REPOSITION 0x30
#define SAGA_FRAME_ROW_END 0x2F
#define SAGA_FRAME_LONG_COMPRESSED_RUN 0x20
#define SAGA_FRAME_LONG_UNCOMPRESSED_RUN 0x10
#define SAGA_FRAME_COMPRESSED_RUN 0x80
#define SAGA_FRAME_UNCOMPRESSED_RUN 0x40
#define SAGA_FRAME_EMPTY_RUN 0xC0
// All animation resources begin with an ANIMATION_HEADER
// at 0x00, followed by a RLE code stream
struct FRAME_HEADER {
int xStart;
int yStart;
int xPos;
int yPos;
int width;
int height;
};
enum AnimationState {
ANIM_PLAYING = 0x01,
ANIM_PAUSE = 0x02,
ANIM_STOPPING = 0x04,
ANIM_ENDSCENE = 0x80 // When animation ends, dispatch scene end event
};
// Animation info array member
struct AnimationData {
byte *resourceData;
size_t resourceLength;
uint16 magic;
uint16 screenWidth;
uint16 screenHeight;
byte unknown06;
byte unknown07;
int16 maxFrame;
int16 loopFrame;
int16 start;
int16 currentFrame;
size_t *frameOffsets;
uint16 completed;
uint16 cycles;
const byte *cur_frame_p;
size_t cur_frame_len;
int frameTime;
AnimationState state;
int16 linkId;
uint16 flags;
AnimationData(const byte *animResourceData, size_t animResourceLength) {
memset(this, 0, sizeof(*this));
resourceLength = animResourceLength;
resourceData = (byte*)malloc(animResourceLength);
memcpy(resourceData, animResourceData, animResourceLength);
}
~AnimationData() {
free(frameOffsets);
free(resourceData);
}
};
class Anim {
public:
Anim(SagaEngine *vm);
~Anim(void);
void load(uint16 animId, const byte *animResourceData, size_t animResourceLength);
void freeId(uint16 animId);
void play(uint16 animId, int vectorTime, bool playing = true);
void link(int16 animId1, int16 animId2);
void setFlag(uint16 animId, uint16 flag);
void clearFlag(uint16 animId, uint16 flag);
void setFrameTime(uint16 animId, int time);
void reset(void);
void animInfo(void);
void setCycles(uint16 animId, int cycles);
void stop(uint16 animId);
void finish(uint16 animId);
void resume(uint16 animId, int cycles);
int16 getCurrentFrame(uint16 animId);
private:
void ITE_DecodeFrame(AnimationData *anim, size_t frameOffset, byte *buf, size_t bufLength);
int IHNM_DecodeFrame(byte *decode_buf, size_t decode_buf_len, const byte *thisf_p,
size_t thisf_len, const byte **nextf_p, size_t *nextf_len);
void fillFrameOffsets(AnimationData *anim);
void validateAnimationId(uint16 animId) {
if (animId >= MAX_ANIMATIONS) {
error("validateAnimationId: animId out of range");
}
if (_animations[animId] == NULL) {
error("validateAnimationId: animId=%i unassigned", animId);
}
}
int getFrameHeaderLength() const {
return (_vm->getFeatures() & GF_MAC_RESOURCES ? 13 : 12);
}
AnimationData* getAnimation(uint16 animId) {
validateAnimationId(animId);
return _animations[animId];
}
uint16 getAnimationCount() const {
uint16 i = 0;
for (; i < MAX_ANIMATIONS; i++) {
if (_animations[i] == NULL) {
break;
}
}
return i;
}
SagaEngine *_vm;
AnimationData *_animations[MAX_ANIMATIONS];
};
} // End of namespace Saga
#endif /* ANIMATION_H_ */
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