/****************************************************************************
Copyright (c) 2010-2011 cocos2d-x.org
Copyright (c) 2009-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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****************************************************************************/
#ifndef __CCPARALLAX_NODE_H__
#define __CCPARALLAX_NODE_H__

#include "CCNode.h"
/*#include "support/data_support/ccArray.h"*/

namespace cocos2d {
	struct _ccArray;

	/** @brief CCParallaxNode: A node that simulates a parallax scroller

	The children will be moved faster / slower than the parent according the the parallax ratio.

	*/
	class CC_DLL CCParallaxNode : public CCNode 
	{
		/** array that holds the offset / ratio of the children */
		CC_SYNTHESIZE(struct _ccArray *, m_pParallaxArray, ParallaxArray)

	public:
		/** Adds a child to the container with a z-order, a parallax ratio and a position offset
		It returns self, so you can chain several addChilds.
		@since v0.8
		*/
		CCParallaxNode();
		virtual ~CCParallaxNode();
		static CCParallaxNode * node();
		virtual void addChild(CCNode * child, unsigned int z, const CCPoint& parallaxRatio, const CCPoint& positionOffset);
		// super methods
		virtual void addChild(CCNode * child, unsigned int zOrder, int tag);
		virtual void removeChild(CCNode* child, bool cleanup);
		virtual void removeAllChildrenWithCleanup(bool cleanup);
		virtual void visit(void);
	private:
		CCPoint absolutePosition();
	protected:
		CCPoint	m_tLastPosition;
	};

} // namespace cocos2d
#endif //__CCPARALLAX_NODE_H__