axmol/cocos2dx/base_nodes/CCNode.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
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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 "CCNode.h"
#include "CGPointExtension.h"
#include "support/TransformUtils.h"
#include "CCCamera.h"
#include "effects/CCGrid.h"
#include "CCDirector.h"
#include "CCScheduler.h"
#include "CCTouch.h"
#include "CCActionManager.h"

#if CC_COCOSNODE_RENDER_SUBPIXEL
#define RENDER_IN_SUBPIXEL
#else
#define RENDER_IN_SUBPIXEL (int)
#endif

namespace   cocos2d {

CCNode::CCNode(void)
:m_bIsRunning(false)
,m_fRotation(0.0f)
,m_fScaleX(1.0f)
,m_fScaleY(1.0f)
,m_tPosition(CGPointZero)
,m_tAnchorPointInPixels(CGPointZero)
,m_tAnchorPoint(CGPointZero)
,m_tContentSize(CGSizeZero)
// "whole screen" objects. like Scenes and Layers, should set isRelativeAnchorPoint to false
,m_bIsRelativeAnchorPoint(true)
,m_bIsTransformDirty(true)
,m_bIsInverseDirty(true)
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
,m_bIsTransformGLDirty(true)
#endif
,m_fVertexZ(0.0f)
,m_pGrid(NULL)
,m_bIsVisible(true)
,m_nTag(kCCNodeTagInvalid)
,m_nZOrder(0)
// lazy alloc
,m_pCamera(NULL)
// children (lazy allocs)
,m_pChildren(NULL)
// userData is always inited as nil
,m_pUserData(NULL)
,m_pParent(NULL)
{
    // nothing
}
CCNode::~CCNode()
{
	CCLOGINFO( "cocos2d: deallocing" );

	// attributes
	CCX_SAFE_RELEASE(m_pCamera);

	CCX_SAFE_RELEASE(m_pGrid);


	if(m_pChildren && m_pChildren->count() > 0)
	{
		NSMutableArray<CCNode*>::NSMutableArrayIterator it;
		for( it = m_pChildren->begin(); it != m_pChildren->end(); ++it)
		{
			if (*it)
			{
				(*it)->m_pParent = NULL;
			}		
		}
	}

	// children
	CCX_SAFE_RELEASE(m_pChildren);

}

void CCNode::arrayMakeObjectsPerformSelector(NSMutableArray<CCNode*> * pArray, callbackFunc func)
{
	if(pArray && pArray->count() > 0)
	{
		CCNode* pNode;
		NSMutableArray<CCNode*>::NSMutableArrayIterator it;
		for( it = pArray->begin(); it != pArray->end(); it++)
		{
			pNode = (*it);

			if(pNode && func)
			{
				(pNode->*func)();
			}
		}
	}
}

/// zOrder getter
int CCNode::getZOrder()
{
	return m_nZOrder;
}

/// zOrder setter : private method
/// used internally to alter the zOrder variable. DON'T call this method manually 
void CCNode::setZOrder(int z)
{
	m_nZOrder = z;
}

/// ertexZ getter
float CCNode::getVertexZ()
{
	return m_fVertexZ;
}


/// vertexZ setter
void CCNode::setVertexZ(float var)
{
	m_fVertexZ = var;
}


/// rotation getter
float CCNode::getRotation()
{
	return m_fRotation;
}

/// rotation setter
void CCNode::setRotation(float newRotation)
{
	m_fRotation = newRotation;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}


/// scale getter
float CCNode::getScale(void)
{
	NSAssert( m_fScaleX == m_fScaleY, "CCNode#scale. ScaleX != ScaleY. Don't know which one to return");
	return m_fScaleX;
}

/// scale setter
void CCNode::setScale(float scale)
{
	m_fScaleX = m_fScaleY = scale;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}

/// scaleX getter
float CCNode::getScaleX()
{
	return m_fScaleX;
}

/// scaleX setter
void CCNode::setScaleX(float newScaleX)
{
	m_fScaleX = newScaleX;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}

/// scaleY getter
float CCNode::getScaleY()
{
	return m_fScaleY;
}

/// scaleY setter
void CCNode::setScaleY(float newScaleY)
{
	m_fScaleY = newScaleY;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}

/// position getter
CGPoint CCNode::getPosition()
{
	return m_tPosition;
}

/// position setter
void CCNode::setPosition(CGPoint newPosition)
{
	m_tPosition = newPosition;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}

/// children getter
NSMutableArray<CCNode*> * CCNode::getChildren()
{
	return m_pChildren;
}

/// camera getter: lazy alloc
CCCamera* CCNode::getCamera()
{
	if (!m_pCamera)
	{
		m_pCamera = new CCCamera();
	}
	
	return m_pCamera;
}


/// grid getter
CCGridBase* CCNode::getGrid()
{
	return m_pGrid;
}

/// grid setter
void CCNode::setGrid(CCGridBase* pGrid)
{
	CCX_SAFE_RETAIN(pGrid);
	CCX_SAFE_RELEASE(m_pGrid);
	m_pGrid = pGrid;
}


/// isVisible getter
bool CCNode::getIsVisible()
{
	return m_bIsVisible;
}

/// isVisible setter
void CCNode::setIsVisible(bool var)
{
	m_bIsVisible = var;
}


/// anchorPoint getter
CGPoint CCNode::getAnchorPoint()
{
	return m_tAnchorPoint;
}

void CCNode::setAnchorPoint(CGPoint point)
{
	if( ! CGPoint::CGPointEqualToPoint(point, m_tAnchorPoint) ) 
	{
		m_tAnchorPoint = point;
		this->m_tAnchorPointInPixels = ccp( m_tContentSize.width * m_tAnchorPoint.x, m_tContentSize.height * m_tAnchorPoint.y );
		m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
		m_bIsTransformGLDirty = true;
#endif
	}
}

/// anchorPointInPixels getter
CGPoint CCNode::getAnchorPointInPixels()
{
	return m_tAnchorPointInPixels;
}

/// contentSize getter
CGSize CCNode::getContentSize()
{
	return m_tContentSize;
}

void CCNode::setContentSize(CGSize size)
{
	if( ! CGSize::CGSizeEqualToSize(size, m_tContentSize) ) 
	{
		m_tContentSize = size;
		m_tAnchorPointInPixels = ccp( m_tContentSize.width * m_tAnchorPoint.x, m_tContentSize.height * m_tAnchorPoint.y );
		m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
		m_bIsTransformGLDirty = true;
#endif
	}
}


/// isRunning getter
bool CCNode::getIsRunning()
{
	return m_bIsRunning;
}


/// parent getter
CCNode * CCNode::getParent()
{
	return m_pParent;
}
/// parent setter
void CCNode::setParent(CCNode * var)
{
	m_pParent = var;
}

/// isRelativeAnchorPoint getter
bool CCNode::getIsRelativeAnchorPoint()
{
	return m_bIsRelativeAnchorPoint;
}
/// isRelativeAnchorPoint setter
void CCNode::setIsRelativeAnchorPoint(bool newValue)
{
	m_bIsRelativeAnchorPoint = newValue;
	m_bIsTransformDirty = m_bIsInverseDirty = true;
#ifdef CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	m_bIsTransformGLDirty = true;
#endif
}

/// tag getter
int CCNode::getTag()
{
	return m_nTag;
}

/// tag setter
void CCNode::setTag(int var)
{
	m_nTag = var;
}

/// userData getter
void * CCNode::getUserData()
{
	return m_pUserData;
}

/// userData setter
void CCNode::setUserData(void *var)
{
	m_pUserData = var;
}


CGRect CCNode::boundingBox()
{
	CGRect rect = CGRectMake(0, 0, m_tContentSize.width, m_tContentSize.height);
	return CGRectApplyAffineTransform(rect, nodeToParentTransform());
}


CCNode * CCNode::node(void)
{
	CCNode * pRet = new CCNode();
	pRet->autorelease();
	return pRet;
}


void CCNode::cleanup()
{
	// actions
	this->stopAllActions();
	this->unscheduleAllSelectors();	

	// timers
	arrayMakeObjectsPerformSelector(m_pChildren, &CCNode::cleanup);
}


char * CCNode::description()
{
	char *ret = new char[100] ;
	sprintf(ret, "<CCNode | Tag = %d>", m_nTag);
	return ret;
}

// lazy allocs
void CCNode::childrenAlloc(void)
{
	m_pChildren = new NSMutableArray<CCNode*>(4);
}

CCNode* CCNode::getChildByTag(int aTag)
{
	NSAssert( aTag != kCCNodeTagInvalid, "Invalid tag");

	if(m_pChildren && m_pChildren->count() > 0)
	{
		CCNode* pNode;
		NSMutableArray<CCNode*>::NSMutableArrayIterator it;
		for( it = m_pChildren->begin(); it != m_pChildren->end(); it++)
		{
			pNode = (*it);
			if(pNode && pNode->m_nTag == aTag)
				return pNode;
		}
	}
	return NULL;
}

/* "add" logic MUST only be on this method
* If a class want's to extend the 'addChild' behaviour it only needs
* to override this method
*/
CCNode * CCNode::addChild(CCNode *child, int zOrder, int tag)
{	
	NSAssert( child != NULL, "Argument must be non-nil");
	NSAssert( child->m_pParent == NULL, "child already added. It can't be added again");

	if( ! m_pChildren )
	{
		this->childrenAlloc();
	}

	this->insertChild(child, zOrder);

	child->m_nTag = tag;

	child->setParent(this);

	if( m_bIsRunning )
	{
		child->onEnter();
	}
	return this;
}

CCNode * CCNode::addChild(CCNode *child, int zOrder)
{
	NSAssert( child != NULL, "Argument must be non-nil");
	return this->addChild(child, zOrder, child->m_nTag);
}

CCNode * CCNode::addChild(CCNode *child)
{
	NSAssert( child != NULL, "Argument must be non-nil");
	return this->addChild(child, child->m_nZOrder, child->m_nTag);
}

void CCNode::removeFromParentAndCleanup(bool cleanup)
{
	this->m_pParent->removeChild(this,cleanup);
}

/* "remove" logic MUST only be on this method
* If a class want's to extend the 'removeChild' behavior it only needs
* to override this method
*/
void CCNode::removeChild(CCNode* child, bool cleanup)
{
	// explicit nil handling
	if (m_pChildren == NULL)
	{
		return;
	}

	if ( m_pChildren->containsObject(child) )
	{
		this->detachChild(child,cleanup);
	}
}

void CCNode::removeChildByTag(int tag, bool cleanup)
{
	NSAssert( tag != kCCNodeTagInvalid, "Invalid tag");

	CCNode *child = this->getChildByTag(tag);

	if (child == NULL)
	{
		CCLOG("cocos2d: removeChildByTag: child not found!");
	}
	else
	{
		this->removeChild(child, cleanup);
	}
}

void CCNode::removeAllChildrenWithCleanup(bool cleanup)
{
	// not using detachChild improves speed here
	if ( m_pChildren && m_pChildren->count() > 0 )
	{
		CCNode * pNode;
		NSMutableArray<CCNode*>::NSMutableArrayIterator it;
		for ( it = m_pChildren->begin(); it!= m_pChildren->end(); it++ )
		{
			pNode = *it;
			if (pNode)
			{
				// IMPORTANT:
				//  -1st do onExit
				//  -2nd cleanup
				if(m_bIsRunning)
				{
					pNode->onExit();
				}

				if (cleanup)
				{
					pNode->cleanup();
				}
				// set parent nil at the end
				pNode->setParent(NULL);
			}
		}
	}
	m_pChildren->removeAllObjects();
}

void CCNode::detachChild(CCNode *child, bool doCleanup)
{
	// IMPORTANT:
	//  -1st do onExit
	//  -2nd cleanup
	if (m_bIsRunning)
	{
		child->onExit();
	}

	// If you don't do cleanup, the child's actions will not get removed and the
	// its scheduledSelectors_ dict will not get released!
	if (doCleanup)
	{
		child->cleanup();
	}

	// set parent nil at the end
	child->setParent(NULL);

	m_pChildren->removeObject(child);
}


// helper used by reorderChild & add
void CCNode::insertChild(CCNode* child, int z)
{
	int index=0;
	bool added = false;

	if(m_pChildren && m_pChildren->count() > 0)
	{
		CCNode* pNode;
		NSMutableArray<CCNode*>::NSMutableArrayIterator it;
		for( it = m_pChildren->begin(); it != m_pChildren->end(); it++)
		{
			pNode = (*it);

			if ( pNode && pNode->m_nZOrder > z ) 
			{
				added = true;
				m_pChildren->insertObjectAtIndex(child, index);
				break;
			}
			index++;
		}
	}

	if( ! added )
	{
		m_pChildren->addObject(child);
	}

	child->setZOrder(z);
}

void CCNode::reorderChild(CCNode *child, int zOrder)
{
	NSAssert( child != NULL, "Child must be non-nil");

	child->retain();
	m_pChildren->removeObject(child);

	insertChild(child, zOrder);
	child->release();
}

 void CCNode::draw()
 {
	 //assert(0);
 	// override me
 	// Only use- this function to draw your staff.
 	// DON'T draw your stuff outside this method
 }

void CCNode::visit()
{
	// quick return if not visible
	if (!m_bIsVisible)
	{
		return;
	}
	glPushMatrix();

 	if (m_pGrid && m_pGrid->isActive())
 	{
 		m_pGrid->beforeDraw();
 		this->transformAncestors();
 	}

	this->transform();

    CCNode* pNode;
    NSMutableArray<CCNode*>::NSMutableArrayIterator it;

	if(m_pChildren && m_pChildren->count() > 0)
	{
		// draw children zOrder < 0
		for( it = m_pChildren->begin(); it != m_pChildren->end(); it++)
		{
			pNode = (*it);

			if ( pNode && pNode->m_nZOrder < 0 ) 
			{
				pNode->visit();
			}
			else
			{
				break;
			}
		}
    }

	// self draw
	this->draw();

	// draw children zOrder >= 0
    if (m_pChildren && m_pChildren->count() > 0)
    {
		for ( ; it!=m_pChildren->end(); it++ )
		{
			pNode = (*it);
            if (pNode)
            {
                pNode->visit();
            }
		}		
	}

 	if (m_pGrid && m_pGrid->isActive())
 	{
 		m_pGrid->afterDraw(this);
	}
 
	glPopMatrix();
}

void CCNode::transformAncestors()
{
	if( m_pParent != NULL  )
	{
		m_pParent->transformAncestors();
		m_pParent->transform();
	}
}

void CCNode::transform()
{	
	// transformations

#if CC_NODE_TRANSFORM_USING_AFFINE_MATRIX
	// BEGIN alternative -- using cached transform
	//
	if( m_bIsTransformGLDirty ) {
		CGAffineTransform t = this->nodeToParentTransform();
		CGAffineToGL(&t, m_pTransformGL);
		m_bIsTransformGLDirty = false;
	}

	glMultMatrixf(m_pTransformGL);
	if( m_fVertexZ )
	{
		glTranslatef(0, 0, m_fVertexZ);
	}

	// XXX: Expensive calls. Camera should be integrated into the cached affine matrix
	if (m_pCamera && !(m_pGrid && m_pGrid->isActive())) {
		bool translate = (m_tAnchorPointInPixels.x != 0.0f || m_tAnchorPointInPixels.y != 0.0f);

		if( translate )
		{
			glTranslatef(RENDER_IN_SUBPIXEL(m_tAnchorPointInPixels.x), RENDER_IN_SUBPIXEL(m_tAnchorPointInPixels.y), 0);
		}

		m_pCamera->locate();

		if( translate )
		{
			glTranslatef(RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.x), RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.y), 0);
		}
	}


	// END alternative

#else
	// BEGIN original implementation
	// 
	// translate
	if ( m_bIsRelativeAnchorPoint && (m_tAnchorPointInPixels.x != 0 || m_tAnchorPointInPixels.y != 0 ) )
		glTranslatef( RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.x), RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.y), 0);

	if (m_tAnchorPointInPixels.x != 0 || m_tAnchorPointInPixels.y != 0)
		glTranslatef( RENDER_IN_SUBPIXEL(m_tPosition.x + m_tAnchorPointInPixels.x), RENDER_IN_SUBPIXEL(m_tPosition.y + m_tAnchorPointInPixels.y), m_fVertexZ);
	else if ( m_tPosition.x !=0 || m_tPosition.y !=0 || m_fVertexZ != 0)
		glTranslatef( RENDER_IN_SUBPIXEL(m_tPosition.x), RENDER_IN_SUBPIXEL(m_tPosition.y), m_fVertexZ );

	// rotate
	if (m_fRotation != 0.0f )
		glRotatef( -m_fRotation, 0.0f, 0.0f, 1.0f );

	// scale
	if (m_fScaleX != 1.0f || m_fScaleY != 1.0f)
		glScalef( m_fScaleX, m_fScaleY, 1.0f );

	if ( m_pCamera  && !(m_pGrid && m_pGrid->isActive()) )
		m_pCamera->locate();

	// restore and re-position point
	if (m_tAnchorPointInPixels.x != 0.0f || m_tAnchorPointInPixels.y != 0.0f)
		glTranslatef(RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.x), RENDER_IN_SUBPIXEL(-m_tAnchorPointInPixels.y), 0);

	//
	// END original implementation
#endif

}


void CCNode::onEnter()
{
	arrayMakeObjectsPerformSelector(m_pChildren, &CCNode::onEnter);

	this->resumeSchedulerAndActions();

	m_bIsRunning = true;
}

void CCNode::onEnterTransitionDidFinish()
{
	arrayMakeObjectsPerformSelector(m_pChildren, &CCNode::onEnterTransitionDidFinish);
}

void CCNode::onExit()
{
	this->pauseSchedulerAndActions();

	m_bIsRunning = false;

	arrayMakeObjectsPerformSelector(m_pChildren, &CCNode::onExit);
}
CCAction * CCNode::runAction(CCAction* action)
{
	NSAssert( action != NULL, "Argument must be non-nil");
	CCActionManager::getSharedManager()->addAction(action, this, !m_bIsRunning);
	return action;
}

void CCNode::stopAllActions()
{
	CCActionManager::getSharedManager()->removeAllActionsFromTarget(this);
}

void CCNode::stopAction(CCAction* action)
{
	CCActionManager::getSharedManager()->removeAction(action);
}

void CCNode::stopActionByTag(int tag)
{
	NSAssert( tag != kCCActionTagInvalid, "Invalid tag");
	CCActionManager::getSharedManager()->removeActionByTag(tag, this);
}

CCAction * CCNode::getActionByTag(int tag)
{
	NSAssert( tag != kCCActionTagInvalid, "Invalid tag");
	return CCActionManager::getSharedManager()->getActionByTag(tag, this);
}

int CCNode::numberOfRunningActions()
{
	return CCActionManager::getSharedManager()->numberOfRunningActionsInTarget(this);
}

// CCNode - Callbacks

void CCNode::scheduleUpdate()
{
	scheduleUpdateWithPriority(0);
}

void CCNode::scheduleUpdateWithPriority(int priority)
{
	CCScheduler::getSharedScheduler()->scheduleUpdateForTarget(this, priority, !m_bIsRunning);
}

void CCNode::unscheduleUpdate()
{
	CCScheduler::getSharedScheduler()->unscheduleUpdateForTarget(this);
}

void CCNode::schedule(SEL_SCHEDULE selector)
{
	this->schedule(selector, 0);
}

void CCNode::schedule(SEL_SCHEDULE selector, ccTime interval)
{
	NSAssert( selector != NULL, "Argument must be non-nil");
	NSAssert( interval >=0, "Argument must be positive");

	CCScheduler::getSharedScheduler()->scheduleSelector(selector, this, interval, !m_bIsRunning);
}

void CCNode::unschedule(SEL_SCHEDULE selector)
{
	// explicit nil handling
	if (selector == NULL)
		return;

	CCScheduler::getSharedScheduler()->unscheduleSelector(selector, this);
}

void CCNode::unscheduleAllSelectors()
{
	CCScheduler::getSharedScheduler()->unscheduleAllSelectorsForTarget(this);
}

void CCNode::resumeSchedulerAndActions()
{
	CCScheduler::getSharedScheduler()->resumeTarget(this);
	CCActionManager::getSharedManager()->resumeTarget(this);
}

void CCNode::pauseSchedulerAndActions()
{
	CCScheduler::getSharedScheduler()->pauseTarget(this);
	CCActionManager::getSharedManager()->pauseTarget(this);
}

void CCNode::selectorProtocolRetain(void)
{
	retain();
}

void CCNode::selectorProtocolRelease(void)
{
	release();
}

CGAffineTransform CCNode::nodeToParentTransform(void)
{
	if ( m_bIsTransformDirty ) {

		m_tTransform = CGAffineTransformIdentity;

		if( ! m_bIsRelativeAnchorPoint && ! CGPoint::CGPointEqualToPoint(m_tAnchorPointInPixels, CGPointZero) )
			m_tTransform = CGAffineTransformTranslate(m_tTransform, m_tAnchorPointInPixels.x, m_tAnchorPointInPixels.y);

		if( ! CGPoint::CGPointEqualToPoint(m_tPosition, CGPointZero) )
			m_tTransform = CGAffineTransformTranslate(m_tTransform, m_tPosition.x, m_tPosition.y);
		if( m_fRotation != 0 )
			m_tTransform = CGAffineTransformRotate(m_tTransform, -CC_DEGREES_TO_RADIANS(m_fRotation));
		if( ! (m_fScaleX == 1 && m_fScaleY == 1) ) 
			m_tTransform = CGAffineTransformScale(m_tTransform, m_fScaleX, m_fScaleY);

		if( ! CGPoint::CGPointEqualToPoint(m_tAnchorPointInPixels, CGPointZero) )
			m_tTransform = CGAffineTransformTranslate(m_tTransform, -m_tAnchorPointInPixels.x, -m_tAnchorPointInPixels.y);

		m_bIsTransformDirty = false;
	}

	return m_tTransform;
}

CGAffineTransform CCNode::parentToNodeTransform(void)
{
	if ( m_bIsInverseDirty ) {
		m_tInverse = CGAffineTransformInvert(this->nodeToParentTransform());
		m_bIsInverseDirty = false;
	}

	return m_tInverse;
}

CGAffineTransform CCNode::nodeToWorldTransform()
{
	CGAffineTransform t = this->nodeToParentTransform();

	for (CCNode *p = m_pParent; p != NULL; p = p->getParent())
		t = CGAffineTransformConcat(t, p->nodeToParentTransform());

	return t;
}

CGAffineTransform CCNode::worldToNodeTransform(void)
{
	return CGAffineTransformInvert(this->nodeToWorldTransform());
}

CGPoint CCNode::convertToNodeSpace(CGPoint worldPoint)
{
	return CGPointApplyAffineTransform(worldPoint, this->worldToNodeTransform());
}

CGPoint CCNode::convertToWorldSpace(CGPoint nodePoint)
{
	return CGPointApplyAffineTransform(nodePoint, this->nodeToWorldTransform());
}

CGPoint CCNode::convertToNodeSpaceAR(CGPoint worldPoint)
{
	CGPoint nodePoint = this->convertToNodeSpace(worldPoint);
	return ccpSub(nodePoint, m_tAnchorPointInPixels);
}

CGPoint CCNode::convertToWorldSpaceAR(CGPoint nodePoint)
{
	nodePoint = ccpAdd(nodePoint, m_tAnchorPointInPixels);
	return this->convertToWorldSpace(nodePoint);
}
CGPoint CCNode::convertToWindowSpace(CGPoint nodePoint)
{
	CGPoint worldPoint = this->convertToWorldSpace(nodePoint);
	return CCDirector::getSharedDirector()->convertToUI(worldPoint);
}

// convenience methods which take a CCTouch instead of CGPoint
CGPoint CCNode::convertTouchToNodeSpace(CCTouch *touch)
{
	CGPoint point = touch->locationInView(touch->view());
	point = CCDirector::getSharedDirector()->convertToGL(point);
	return this->convertToNodeSpace(point);
}
CGPoint CCNode::convertTouchToNodeSpaceAR(CCTouch *touch)
{
	CGPoint point = touch->locationInView(touch->view());
	point = CCDirector::getSharedDirector()->convertToGL(point);
	return this->convertToNodeSpaceAR(point);
}

}//namespace   cocos2d