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 * Copyright (c) 2013, Esoteric Software
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#ifndef SPINE_BONE_H_
#define SPINE_BONE_H_

#include "BoneData.h"

namespace cocos2d { namespace extension {

typedef struct Bone Bone;
struct Bone {
	BoneData* const data;
	Bone* const parent;
	float x, y;
	float rotation;
	float scaleX, scaleY;

	float const m00, m01, worldX; /* a b x */
	float const m10, m11, worldY; /* c d y */
	float const worldRotation;
	float const worldScaleX, worldScaleY;
};

void Bone_setYDown (int/*bool*/yDown);

/* @param parent May be 0. */
Bone* Bone_create (BoneData* data, Bone* parent);
void Bone_dispose (Bone* self);

void Bone_setToSetupPose (Bone* self);

void Bone_updateWorldTransform (Bone* self, int/*bool*/flipX, int/*bool*/flipY);

}} // namespace cocos2d { namespace extension {

#endif /* SPINE_BONE_H_ */