/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated April 5, 2025. Replaces all prior versions.
 *
 * Copyright (c) 2013-2025, Esoteric Software LLC
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 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
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#ifndef Spine_TransformConstraintTimeline_h
#define Spine_TransformConstraintTimeline_h

#include <spine/CurveTimeline.h>
#include <spine/ConstraintTimeline.h>

namespace spine {

	/// Changes a transform constraint's TransformConstraintPose::getMixRotate(), TransformConstraintPose::getMixX(),
	/// TransformConstraintPose::getMixY(), TransformConstraintPose::getMixScaleX(),
	/// TransformConstraintPose::getMixScaleY(), and TransformConstraintPose::getMixShearY().
	class SP_API TransformConstraintTimeline : public CurveTimeline, public ConstraintTimeline {
		friend class SkeletonBinary;

		friend class SkeletonJson;

		RTTI_DECL

	public:
		explicit TransformConstraintTimeline(size_t frameCount, size_t bezierCount, int transformConstraintIndex);

		virtual ~TransformConstraintTimeline();

		virtual void apply(Skeleton &skeleton, float lastTime, float time, Array<Event *> *pEvents, float alpha, MixBlend blend,
						   MixDirection direction, bool appliedPose) override;

		/// Sets the time, rotate mix, translate mix, scale mix, and shear mix for the specified frame.
		/// @param frame Between 0 and frameCount, inclusive.
		/// @param time The frame time in seconds.
		void setFrame(int frame, float time, float mixRotate, float mixX, float mixY, float mixScaleX, float mixScaleY, float mixShearY);

		virtual int getConstraintIndex() const override {
			return _constraintIndex;
		}

		virtual void setConstraintIndex(int inValue) override {
			_constraintIndex = inValue;
		}
	private:
		int _constraintIndex;

		static const int ENTRIES = 7;
		static const int ROTATE = 1;
		static const int X = 2;
		static const int Y = 3;
		static const int SCALEX = 4;
		static const int SCALEY = 5;
		static const int SHEARY = 6;
	};
}

#endif /* Spine_TransformConstraintTimeline_h */