spine-runtimes/spine-cpp/spine-cpp/include/spine/TransformConstraintTimeline.h

/******************************************************************************
 * Spine Runtimes Software License v2.5
 *
 * Copyright (c) 2013-2016, Esoteric Software
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#ifndef Spine_TransformConstraintTimeline_h
#define Spine_TransformConstraintTimeline_h

#include <spine/CurveTimeline.h>

namespace Spine
{
    class TransformConstraintTimeline : public CurveTimeline
    {
        RTTI_DECL;
        
    public:
        static const int ENTRIES;
        
        virtual void apply(Skeleton& skeleton, float lastTime, float time, Vector<Event*>& events, float alpha, MixPose pose, MixDirection direction);
        
        virtual int getPropertyId();
        
    private:
        static const int PREV_TIME, PREV_ROTATE, PREV_TRANSLATE, PREV_SCALE, PREV_SHEAR;
        static const int ROTATE, TRANSLATE, SCALE, SHEAR;
        
        int _transformConstraintIndex;
        
//        internal float[] frames;
//
//        public int TransformConstraintIndex { return transformConstraintIndex; } set { transformConstraintIndex = inValue; }
//        public float[] Frames { return frames; } set { frames = inValue; } // time, rotate mix, translate mix, scale mix, shear mix, ...
//
//
//        public TransformConstraintTimeline (int frameCount)
//        : base(frameCount) {
//            frames = new float[frameCount * ENTRIES];
//        }
//
//        public void setFrame (int frameIndex, float time, float rotateMix, float translateMix, float scaleMix, float shearMix) {
//            frameIndex *= ENTRIES;
//            frames[frameIndex] = time;
//            frames[frameIndex + ROTATE] = rotateMix;
//            frames[frameIndex + TRANSLATE] = translateMix;
//            frames[frameIndex + SCALE] = scaleMix;
//            frames[frameIndex + SHEAR] = shearMix;
//        }
//
//        override public void Apply (Skeleton skeleton, float lastTime, float time, Vector<Event> firedEvents, float alpha, MixPose pose, MixDirection direction) {
//            TransformConstraint constraint = skeleton.transformConstraints.Items[transformConstraintIndex];
//            float[] frames = _frames;
//            if (time < frames[0]) {
//                var data = constraint.data;
//                switch (pose) {
//                    case MixPose_Setup:
//                        constraint.rotateMix = data.rotateMix;
//                        constraint.translateMix = data.translateMix;
//                        constraint.scaleMix = data.scaleMix;
//                        constraint.shearMix = data.shearMix;
//                        return;
//                    case MixPose_Current:
//                        constraint.rotateMix += (data.rotateMix - constraint.rotateMix) * alpha;
//                        constraint.translateMix += (data.translateMix - constraint.translateMix) * alpha;
//                        constraint.scaleMix += (data.scaleMix - constraint.scaleMix) * alpha;
//                        constraint.shearMix += (data.shearMix - constraint.shearMix) * alpha;
//                        return;
//                }
//                return;
//            }
//
//            float rotate, translate, scale, shear;
//            if (time >= frames[frames.Length - ENTRIES]) { // Time is after last frame.
//                int i = frames.Length;
//                rotate = frames[i + PREV_ROTATE];
//                translate = frames[i + PREV_TRANSLATE];
//                scale = frames[i + PREV_SCALE];
//                shear = frames[i + PREV_SHEAR];
//            } else {
//                // Interpolate between the previous frame and the current frame.
//                int frame = Animation::binarySearch(frames, time, ENTRIES);
//                rotate = frames[frame + PREV_ROTATE];
//                translate = frames[frame + PREV_TRANSLATE];
//                scale = frames[frame + PREV_SCALE];
//                shear = frames[frame + PREV_SHEAR];
//                float frameTime = frames[frame];
//                float percent = GetCurvePercent(frame / ENTRIES - 1,
//                                                1 - (time - frameTime) / (frames[frame + PREV_TIME] - frameTime));
//
//                rotate += (frames[frame + ROTATE] - rotate) * percent;
//                translate += (frames[frame + TRANSLATE] - translate) * percent;
//                scale += (frames[frame + SCALE] - scale) * percent;
//                shear += (frames[frame + SHEAR] - shear) * percent;
//            }
//            if (pose == MixPose_Setup) {
//                TransformConstraintData data = constraint.data;
//                constraint.rotateMix = data.rotateMix + (rotate - data.rotateMix) * alpha;
//                constraint.translateMix = data.translateMix + (translate - data.translateMix) * alpha;
//                constraint.scaleMix = data.scaleMix + (scale - data.scaleMix) * alpha;
//                constraint.shearMix = data.shearMix + (shear - data.shearMix) * alpha;
//            } else {
//                constraint.rotateMix += (rotate - constraint.rotateMix) * alpha;
//                constraint.translateMix += (translate - constraint.translateMix) * alpha;
//                constraint.scaleMix += (scale - constraint.scaleMix) * alpha;
//                constraint.shearMix += (shear - constraint.shearMix) * alpha;
//            }
//        }
    };
}

#endif /* Spine_TransformConstraintTimeline_h */