axmol/cocos2dx/actions/CCActionEase.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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
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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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****************************************************************************/

#include "CCActionEase.h"
#include "NSObject.h"

/*
 * Elastic, Back and Bounce actions based on code from:
 * http://github.com/NikhilK/silverlightfx/
 *
 * by http://github.com/NikhilK
 */
namespace cocos2d {

#ifndef M_PI_X_2
#define M_PI_X_2 (float)M_PI * 2.0f
#endif

	//
	// EaseAction
	//
	CCActionEase* CCActionEase::actionWithAction(cocos2d::CCActionInterval *pAction)
	{
		CCActionEase *pRet = new CCActionEase();
		if (pRet)
		{
	        if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	bool CCActionEase::initWithAction(cocos2d::CCActionInterval *pAction)
	{
		assert(pAction != NULL);

		if (CCActionInterval::initWithDuration(pAction->getDuration()))
		{
			m_pOther = pAction;
			pAction->retain();

			return true;
		}

		return false;
	}

	NSObject* CCActionEase::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCActionEase* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCActionEase*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCActionEase();
			pZone = pNewZone = new NSZone(pCopy);
		}

		CCActionInterval::copyWithZone(pZone);

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	CCActionEase::~CCActionEase(void)
	{
		CCX_SAFE_RELEASE(m_pOther);
	}

	void CCActionEase::startWithTarget(CCNode *pTarget)
	{
		CCActionInterval::startWithTarget(pTarget);
		m_pOther->startWithTarget(m_pTarget);
	}

	void CCActionEase::stop(void)
	{
		m_pOther->stop();
		CCActionInterval::stop();
	}

	void CCActionEase::update(cocos2d::ccTime time)
	{
		m_pOther->update(time);
	}

	CCActionInterval* CCActionEase::reverse(void)
	{
		return CCActionEase::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseRateAction
	//
	CCEaseRateAction* CCEaseRateAction::actionWithAction(cocos2d::CCActionInterval *pAction, float fRate)
	{
		CCEaseRateAction *pRet = new CCEaseRateAction();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fRate))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	bool CCEaseRateAction::initWithAction(cocos2d::CCActionInterval *pAction, float fRate)
	{
		if (CCActionEase::initWithAction(pAction))
		{
			m_fRate = fRate;
			return true;
		}

		return false;
	}

	NSObject* CCEaseRateAction::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseRateAction* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseRateAction*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseRateAction();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval*)(m_pOther->copy()->autorelease()), m_fRate);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	CCEaseRateAction::~CCEaseRateAction(void)
	{
	}

	CCActionInterval* CCEaseRateAction::reverse(void)
	{
		return CCEaseRateAction::actionWithAction(m_pOther->reverse(), 1 / m_fRate);
	}

	//
	// EeseIn
	//
	CCEaseIn* CCEaseIn::actionWithAction(cocos2d::CCActionInterval *pAction, float fRate)
	{
		CCEaseIn *pRet = new CCEaseIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fRate))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	NSObject* CCEaseIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval*)(m_pOther->copy()->autorelease()), m_fRate);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseIn::update(cocos2d::ccTime time)
	{
		m_pOther->update(powf(time, m_fRate));
	}

	//
	// EaseOut
	//
	CCEaseOut* CCEaseOut::actionWithAction(cocos2d::CCActionInterval *pAction, float fRate)
	{
		CCEaseOut *pRet = new CCEaseOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fRate))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;      
	}

	NSObject* CCEaseOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval*)(m_pOther->copy()->autorelease()), m_fRate);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseOut::update(cocos2d::ccTime time)
	{
		m_pOther->update(powf(time, 1 / m_fRate));
	}

	//
	// EaseInOut
	//
	CCEaseInOut* CCEaseInOut::actionWithAction(cocos2d::CCActionInterval *pAction, float fRate)
	{
		CCEaseInOut *pRet = new CCEaseInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fRate))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;        
	}

	NSObject* CCEaseInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval*)(m_pOther->copy()->autorelease()), m_fRate);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseInOut::update(cocos2d::ccTime time)
	{
		int sign = 1;
		int r = (int) m_fRate;

		if (r % 2 == 0)
		{
			sign = -1;
		}

		time *= 2;
        if (time < 1)
		{
			m_pOther->update(0.5f * powf(time, m_fRate));
		}
		else
		{
			m_pOther->update(sign * 0.5f * (powf(time - 2, m_fRate) + sign * 2));
		}
	}

	// InOut and OutIn are symmetrical
	CCActionInterval* CCEaseInOut::reverse(void)
	{
		return CCEaseInOut::actionWithAction(m_pOther->reverse(), m_fRate);
	}

	//
	// EaseExponentialIn
	//
	CCEaseExponentialIn* CCEaseExponentialIn::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseExponentialIn *pRet = new CCEaseExponentialIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;      
	}

	NSObject* CCEaseExponentialIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseExponentialIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseExponentialIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseExponentialIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseExponentialIn::update(cocos2d::ccTime time)
	{
		m_pOther->update(time == 0 ? 0 : powf(2, 10 * (time/1 - 1)) - 1 * 0.001f);
	}

	CCActionInterval* CCEaseExponentialIn::reverse(void)
	{
		return CCEaseExponentialOut::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseExponentialOut
	//
	CCEaseExponentialOut* CCEaseExponentialOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseExponentialOut *pRet = new CCEaseExponentialOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseExponentialOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseExponentialOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseExponentialOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseExponentialOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseExponentialOut::update(cocos2d::ccTime time)
	{
		m_pOther->update(time == 1 ? 1 : (-powf(2, -10 * time / 1) + 1));
	}

	CCActionInterval* CCEaseExponentialOut::reverse(void)
	{
		return CCEaseExponentialIn::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseExponentialInOut
	//
	CCEaseExponentialInOut* CCEaseExponentialInOut::actionWithAction(cocos2d::CCActionInterval *pAction)
	{
		CCEaseExponentialInOut *pRet = new CCEaseExponentialInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseExponentialInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseExponentialInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseExponentialInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseExponentialInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseExponentialInOut::update(cocos2d::ccTime time)
	{
		time /= 0.5f;
		if (time < 1)
		{
			time = 0.5f * powf(2, 10 * (time - 1));
		}
		else
		{
			time = 0.5f * (-powf(2, 10 * (time - 1)) + 2);
		}

		m_pOther->update(time);
	}

	//
	// EaseSineIn
	//
	CCEaseSineIn* CCEaseSineIn::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseSineIn *pRet = new CCEaseSineIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseSineIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseSineIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject)
		{
			//in case of being called at sub class
			pCopy = (CCEaseSineIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseSineIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseSineIn::update(cocos2d::ccTime time)
	{
		m_pOther->update(-1 * cosf(time * (float)M_PI_2) + 1);
	}

	CCActionInterval* CCEaseSineIn::reverse(void)
	{
		return CCEaseSineOut::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseSineOut
	//
	CCEaseSineOut* CCEaseSineOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseSineOut *pRet = new CCEaseSineOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseSineOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseSineOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseSineOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseSineOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseSineOut::update(cocos2d::ccTime time)
	{
		m_pOther->update(sinf(time * (float)M_PI_2));
	}

	CCActionInterval* CCEaseSineOut::reverse(void)
	{
		return CCEaseSineIn::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseSineInOut
	//
	CCEaseSineInOut* CCEaseSineInOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseSineInOut *pRet = new CCEaseSineInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseSineInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseSineInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseSineInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseSineInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseSineInOut::update(cocos2d::ccTime time)
	{
		m_pOther->update(-0.5f * (cosf((float)M_PI * time) - 1));
	}

	//
	// EaseElastic
	//
	CCEaseElastic* CCEaseElastic::actionWithAction(cocos2d::CCActionInterval *pAction)
	{
		CCEaseElastic *pRet = new CCEaseElastic();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	CCEaseElastic* CCEaseElastic::actionWithAction(cocos2d::CCActionInterval *pAction, float fPeriod)
	{
		CCEaseElastic *pRet = new CCEaseElastic();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fPeriod))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	bool CCEaseElastic::initWithAction(cocos2d::CCActionInterval *pAction)
	{
		return initWithAction(pAction, 0.3f);
	}

	bool CCEaseElastic::initWithAction(cocos2d::CCActionInterval *pAction, float fPeriod)
	{
		if (CCActionEase::initWithAction(pAction))
		{
			m_fPeriod = fPeriod;
			return true;
		}

		return false;
	}

	NSObject* CCEaseElastic::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseElastic* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseElastic*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseElastic();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()), m_fPeriod);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	CCActionInterval* CCEaseElastic::reverse(void)
	{
		assert(0);

		return NULL;
	}

    //
	// EaseElasticIn
	//
	CCEaseElasticIn* CCEaseElasticIn::actionWithAction(CCActionInterval *pAction, float fPeriod)
	{
		CCEaseElasticIn *pRet = new CCEaseElasticIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fPeriod))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	CCEaseElasticIn* CCEaseElasticIn::actionWithAction(CCActionInterval *pAction)
	{
		CCEaseElasticIn *pRet = new CCEaseElasticIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseElasticIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseElasticIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseElasticIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseElasticIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()), m_fPeriod);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseElasticIn::update(cocos2d::ccTime time)
	{
		ccTime newT = 0;
		if (time == 0 || time == 1)
		{
			newT = time;
		}
		else
		{
			float s = m_fPeriod / 4;
			time = time - 1;
			newT = -powf(2, 10 * time) * sinf((time - s) * M_PI_X_2 / m_fPeriod);
		}

		m_pOther->update(newT);
	}

	CCActionInterval* CCEaseElasticIn::reverse(void)
	{
		return CCEaseElasticOut::actionWithAction(m_pOther->reverse(), m_fPeriod);
	}

	//
	// EaseElasticOut
	//
	CCEaseElasticOut* CCEaseElasticOut::actionWithAction(CCActionInterval *pAction)
	{
		CCEaseElasticOut *pRet = new CCEaseElasticOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	CCEaseElasticOut* CCEaseElasticOut::actionWithAction(CCActionInterval *pAction, float fPeriod)
	{
		CCEaseElasticOut *pRet = new CCEaseElasticOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fPeriod))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject *CCEaseElasticOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseElasticOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseElasticOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseElasticOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()), m_fPeriod);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseElasticOut::update(cocos2d::ccTime time)
	{
		ccTime newT = 0;
		if (time == 0 || time == 1)
		{
			newT = time;
		}
		else
		{
			float s = m_fPeriod / 4;
			newT = powf(2, -10 * time) * sinf((time - s) * M_PI_X_2 / m_fPeriod) + 1;
		}

		m_pOther->update(newT);
	}

	CCActionInterval* CCEaseElasticOut::reverse(void)
	{
		return CCEaseElasticIn::actionWithAction(m_pOther->reverse(), m_fPeriod);
	}

	//
	// EaseElasticInOut
	//
	CCEaseElasticInOut* CCEaseElasticInOut::actionWithAction(CCActionInterval *pAction)
	{
		CCEaseElasticInOut *pRet = new CCEaseElasticInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	CCEaseElasticInOut* CCEaseElasticInOut::actionWithAction(CCActionInterval *pAction, float fPeriod)
	{
		CCEaseElasticInOut *pRet = new CCEaseElasticInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction, fPeriod))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseElasticInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseElasticInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseElasticInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseElasticInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()), m_fPeriod);

		CCX_SAFE_DELETE(pNewZone);
		return pCopy;

	}

	void CCEaseElasticInOut::update(cocos2d::ccTime time)
	{
		ccTime newT = 0;
		if (time == 0 || time == 1)
		{
			newT = time;
		}
		else
		{
			time = time * 2;
			if (! m_fPeriod)
			{
				m_fPeriod = 0.3f * 1.5f;
			}

			ccTime s = m_fPeriod / 4;

			time = time - 1;
			if (time < 0)
			{
				newT = -0.5f * powf(2, 10 * time) * sinf((time -s) * M_PI_X_2 / m_fPeriod);
			}
			else
			{
				newT = powf(2, -10 * time) * sinf((time - s) * M_PI_X_2 / m_fPeriod) * 0.5f + 1;
			}
		}

		m_pOther->update(newT);
	}

	CCActionInterval* CCEaseElasticInOut::reverse(void)
	{
		return CCEaseInOut::actionWithAction(m_pOther->reverse(), m_fPeriod);
	}

	//
	// EaseBounce
	//
	CCEaseBounce* CCEaseBounce::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBounce *pRet = new CCEaseBounce();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseBounce::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBounce* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBounce*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBounce();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	ccTime CCEaseBounce::bounceTime(cocos2d::ccTime time)
	{
		if (time < 1 / 2.75)
		{
			return 7.5625f * time * time;
		} else 
		if (time < 2 / 2.75)
		{
			time -= 1.5f / 2.75f;
			return 7.5625f * time * time + 0.75f;
		} else
		if(time < 2.5 / 2.75)
		{
			time -= 2.25f / 2.75f;
			return 7.5625f * time * time + 0.9375f;
		}

		time -= 2.625f / 2.75f;
		return 7.5625f * time * time + 0.984375f;
	}

	//
	// EaseBounceIn
	//
	CCEaseBounceIn* CCEaseBounceIn::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBounceIn *pRet = new CCEaseBounceIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseBounceIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBounceIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBounceIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBounceIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBounceIn::update(cocos2d::ccTime time)
	{
		ccTime newT = 1 - bounceTime(1 - time);
		m_pOther->update(newT);
	}

	CCActionInterval* CCEaseBounceIn::reverse(void)
	{
		return CCEaseBounceOut::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseBounceOut
	//
	CCEaseBounceOut* CCEaseBounceOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBounceOut *pRet = new CCEaseBounceOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseBounceOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBounceOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject)
		{
			//in case of being called at sub class
			pCopy = (CCEaseBounceOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBounceOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBounceOut::update(cocos2d::ccTime time)
	{
		ccTime newT = bounceTime(time);
		m_pOther->update(newT);
	}

	CCActionInterval* CCEaseBounceOut::reverse(void)
	{
		return CCEaseBounceIn::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseBounceInOut
	//
	CCEaseBounceInOut* CCEaseBounceInOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBounceInOut *pRet = new CCEaseBounceInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet; 
	}

	NSObject* CCEaseBounceInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBounceInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBounceInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBounceInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBounceInOut::update(cocos2d::ccTime time)
	{
		ccTime newT = 0;
		if (time < 0.5f)
		{
			time = time * 2;
			newT = (1 - bounceTime(1 - time)) * 0.5f;
		}
		else
		{
			newT = bounceTime(time * 2 - 1) * 0.5f + 0.5f;
		}

		m_pOther->update(newT);
	}

	//
	// EaseBackIn
	//
	CCEaseBackIn* CCEaseBackIn::actionWithAction(cocos2d::CCActionInterval *pAction)
	{
		CCEaseBackIn *pRet = new CCEaseBackIn();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	NSObject* CCEaseBackIn::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBackIn* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBackIn*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBackIn();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBackIn::update(cocos2d::ccTime time)
	{
		ccTime overshoot = 1.70158f;
		m_pOther->update(time * time * ((overshoot + 1) * time - overshoot));
	}

	CCActionInterval* CCEaseBackIn::reverse(void)
	{
		return CCEaseBackOut::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseBackOut
	//
	CCEaseBackOut* CCEaseBackOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBackOut *pRet = new CCEaseBackOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	NSObject* CCEaseBackOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBackOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBackOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBackOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBackOut::update(cocos2d::ccTime time)
	{
		ccTime overshoot = 1.70158f;

		time = time - 1;
		m_pOther->update(time * time * ((overshoot + 1) * time + overshoot) + 1);
	}

	CCActionInterval* CCEaseBackOut::reverse(void)
	{
		return CCEaseBackIn::actionWithAction(m_pOther->reverse());
	}

	//
	// EaseBackInOut
	//
	CCEaseBackInOut* CCEaseBackInOut::actionWithAction(CCActionInterval* pAction)
	{
		CCEaseBackInOut *pRet = new CCEaseBackInOut();
		if (pRet)
		{
			if (pRet->initWithAction(pAction))
			{
				pRet->autorelease();
			}
			else
			{
				CCX_SAFE_RELEASE_NULL(pRet);
			}
		}

		return pRet;
	}

	NSObject* CCEaseBackInOut::copyWithZone(cocos2d::NSZone *pZone)
	{
		NSZone* pNewZone = NULL;
		CCEaseBackInOut* pCopy = NULL;
		if(pZone && pZone->m_pCopyObject) 
		{
			//in case of being called at sub class
			pCopy = (CCEaseBackInOut*)(pZone->m_pCopyObject);
		}
		else
		{
			pCopy = new CCEaseBackInOut();
			pZone = pNewZone = new NSZone(pCopy);
		}

		pCopy->initWithAction((CCActionInterval *)(m_pOther->copy()->autorelease()));
		
		CCX_SAFE_DELETE(pNewZone);
		return pCopy;
	}

	void CCEaseBackInOut::update(cocos2d::ccTime time)
	{
		ccTime overshoot = 1.70158f * 1.525f;

		time = time * 2;
		if (time < 1)
		{
			m_pOther->update((time * time * ((overshoot + 1) * time - overshoot)) / 2);
		}
		else
		{
			time = time - 2;
			m_pOther->update((time * time * ((overshoot + 1) + overshoot)) / 2 + 1);
		}
	}
}