animationemi.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef GRIM_ANIMATIONEMI_H
#define GRIM_ANIMATIONEMI_H

#include "common/str.h"

#include "math/mathfwd.h"
#include "math/quat.h"

#include "engines/grim/animation.h"
#include "engines/grim/object.h"
#include "engines/grim/emi/skeleton.h"

namespace Grim {

struct AnimRotation {
    Math::Quaternion _quat;
    float _time;
};

struct AnimTranslation {
    Math::Vector3d _vec;
    float _time;
};

struct Bone {
    Common::String _boneName;
    int _operation;
    int _priority;
    int _c;
    int _count;
    AnimRotation *_rotations;
    AnimTranslation *_translations;
    Joint *_target;
    Bone() : _rotations(NULL), _translations(NULL), _boneName(""), _operation(0), _target(NULL) {}
    ~Bone();
    void loadBinary(Common::SeekableReadStream *data);
};

class AnimationEmi : public Object {
    void loadAnimation(Common::SeekableReadStream *data);
public:
    Common::String _name;
    Common::String _fname;
    float _duration;
    int _numBones;
    Bone *_bones;
    AnimationEmi(const Common::String &filename, Common::SeekableReadStream *data);
    ~AnimationEmi();

    const Common::String &getFilename() const { return _fname; }
};

class AnimationStateEmi {
public:
    AnimationStateEmi(const Common::String &anim);
    ~AnimationStateEmi();

    void update(uint time);
    void computeWeights();
    void animate();
    void play();
    void stop();
    void setPaused(bool paused);
    void setLooping(bool loop);
    void setSkeleton(Skeleton *skel);
    void fade(Animation::FadeMode mode, int fadeLength);
    void advance(uint msecs);
    void saveState(SaveGame *state);
    void restoreState(SaveGame *state);

private:
    void activate();
    void deactivate();

    friend class Skeleton;

    Skeleton *_skel;
    ObjectPtr<AnimationEmi> _anim;
    bool _looping;
    bool _active;
    bool _paused;
    int _time;
    float _fade;
    float _startFade;
    Animation::FadeMode _fadeMode;
    int _fadeLength;
    int *_boneJoints;
};

} // end of namespace Grim

#endif