/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
 * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

#ifndef Spine_VertexEffect_h
#define Spine_VertexEffect_h

#include <spine/SpineObject.h>
#include <spine/MathUtil.h>

namespace spine {

class Skeleton;
class Color;

class SP_API VertexEffect: public SpineObject {
public:
	virtual void begin(Skeleton& skeleton) = 0;
	virtual void transform(float& x, float& y, float &u, float &v, Color &light, Color &dark) = 0;
	virtual void end() = 0;
};

class SP_API JitterVertexEffect: public VertexEffect {
public:
	JitterVertexEffect(float jitterX, float jitterY);

	void begin(Skeleton& skeleton);
	void transform(float& x, float& y, float &u, float &v, Color &light, Color &dark);
	void end();

	void setJitterX(float jitterX);
	float getJitterX();

	void setJitterY(float jitterY);
	float getJitterY();

protected:
	float _jitterX;
	float _jitterY;
};

class SP_API SwirlVertexEffect: public VertexEffect {
public:
	SwirlVertexEffect(float radius, Interpolation &interpolation);

	void begin(Skeleton& skeleton);
	void transform(float& x, float& y, float &u, float &v, Color &light, Color &dark);
	void end();

	void setCenterX(float centerX);
	float getCenterX();

	void setCenterY(float centerY);
	float getCenterY();

	void setRadius(float radius);
	float getRadius();

	void setAngle(float angle);
	float getAngle();

	void setWorldX(float worldX);
	float getWorldX();

	void setWorldY(float worldY);
	float getWorldY();

protected:
	float _centerX;
	float _centerY;
	float _radius;
	float _angle;
	float _worldX;
	float _worldY;

	Interpolation& _interpolation;
};
}

#endif /* Spine_VertexEffect_h */