/**************************************************************************** Copyright (c) 2010-2012 cocos2d-x.org Copyright (c) 2008-2010 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 copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include #include "CCLayer.h" #include "touch_dispatcher/CCTouchDispatcher.h" #include "keypad_dispatcher/CCKeypadDispatcher.h" #include "CCAccelerometer.h" #include "CCDirector.h" #include "support/CCPointExtension.h" #include "script_support/CCScriptSupport.h" #include "shaders/CCShaderCache.h" #include "shaders/CCGLProgram.h" #include "shaders/ccGLStateCache.h" #include "support/TransformUtils.h" // extern #include "kazmath/GL/matrix.h" NS_CC_BEGIN // CCLayer CCLayer::CCLayer() :m_bIsTouchEnabled(false) ,m_bIsAccelerometerEnabled(false) ,m_bIsKeypadEnabled(false) ,m_pScriptHandlerEntry(NULL) { setAnchorPoint(ccp(0.5f, 0.5f)); m_bIgnoreAnchorPointForPosition = true; m_bTouchMode = kCCTouchesAllAtOnce; m_bTouchPriority = 0; } CCLayer::~CCLayer() { unregisterScriptTouchHandler(); } bool CCLayer::init() { bool bRet = false; do { CCDirector * pDirector; CC_BREAK_IF(!(pDirector = CCDirector::sharedDirector())); this->setContentSize(pDirector->getWinSize()); m_bIsTouchEnabled = false; m_bIsAccelerometerEnabled = false; // success bRet = true; } while(0); return bRet; } CCLayer *CCLayer::node() { return CCLayer::create(); } CCLayer *CCLayer::create() { CCLayer *pRet = new CCLayer(); if (pRet && pRet->init()) { pRet->autorelease(); return pRet; } else { CC_SAFE_DELETE(pRet); return NULL; } } /// Touch and Accelerometer related void CCLayer::registerWithTouchDispatcher() { CCTouchDispatcher* pDispatcher = CCDirector::sharedDirector()->getTouchDispatcher(); // Using LuaBindings if (m_pScriptHandlerEntry) { if (m_pScriptHandlerEntry->isMultiTouches()) { pDispatcher->addStandardDelegate(this, 0); LUALOG("[LUA] Add multi-touches event handler: %d", m_pScriptHandlerEntry->getHandler()); } else { pDispatcher->addTargetedDelegate(this, m_pScriptHandlerEntry->getPriority(), m_pScriptHandlerEntry->getSwallowsTouches()); LUALOG("[LUA] Add touch event handler: %d", m_pScriptHandlerEntry->getHandler()); } } else { if( m_bTouchMode == kCCTouchesAllAtOnce ) { pDispatcher->addStandardDelegate(this, 0); } else { pDispatcher->addTargetedDelegate(this, m_bTouchPriority, true); } } } void CCLayer::registerScriptTouchHandler(int nHandler, bool bIsMultiTouches, int nPriority, bool bSwallowsTouches) { unregisterScriptTouchHandler(); m_pScriptHandlerEntry = CCTouchScriptHandlerEntry::create(nHandler, bIsMultiTouches, nPriority, bSwallowsTouches); m_pScriptHandlerEntry->retain(); } void CCLayer::unregisterScriptTouchHandler(void) { CC_SAFE_RELEASE_NULL(m_pScriptHandlerEntry); } int CCLayer::excuteScriptTouchHandler(int nEventType, CCTouch *pTouch) { return CCScriptEngineManager::sharedManager()->getScriptEngine()->executeLayerTouchEvent(this, nEventType, pTouch); } int CCLayer::excuteScriptTouchHandler(int nEventType, CCSet *pTouches) { return CCScriptEngineManager::sharedManager()->getScriptEngine()->executeLayerTouchesEvent(this, nEventType, pTouches); } /// isTouchEnabled getter bool CCLayer::isTouchEnabled() { return m_bIsTouchEnabled; } /// isTouchEnabled setter void CCLayer::setTouchEnabled(bool enabled) { if (m_bIsTouchEnabled != enabled) { m_bIsTouchEnabled = enabled; if (m_bIsRunning) { if (enabled) { this->registerWithTouchDispatcher(); } else { // have problems? CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this); } } } } void CCLayer::setTouchMode(ccTouchesMode mode) { if(m_bTouchMode != mode) { m_bTouchMode = mode; if( m_bIsTouchEnabled) { setTouchEnabled(false); setTouchEnabled(true); } } } void CCLayer::setTouchPriority(int priority) { if(m_bTouchPriority != priority) { m_bTouchPriority = priority; if( m_bIsTouchEnabled) { setTouchEnabled(false); setTouchEnabled(true); } } } int CCLayer::getTouchPriority() { return m_bTouchPriority; } int CCLayer::getTouchMode() { return m_bTouchMode; } /// isAccelerometerEnabled getter bool CCLayer::isAccelerometerEnabled() { return m_bIsAccelerometerEnabled; } /// isAccelerometerEnabled setter void CCLayer::setAccelerometerEnabled(bool enabled) { if (enabled != m_bIsAccelerometerEnabled) { m_bIsAccelerometerEnabled = enabled; if (m_bIsRunning) { CCDirector* pDirector = CCDirector::sharedDirector(); if (enabled) { pDirector->getAccelerometer()->setDelegate(this); } else { pDirector->getAccelerometer()->setDelegate(NULL); } } } } void CCLayer::setAccelerometerInterval(double interval) { if (m_bIsAccelerometerEnabled) { if (m_bIsRunning) { CCDirector* pDirector = CCDirector::sharedDirector(); // pDirector->getAccelerometer()->setAccelerometerInterval(interval); } } } void CCLayer::didAccelerate(CCAcceleration* pAccelerationValue) { CC_UNUSED_PARAM(pAccelerationValue); // // if ( m_eScriptType != kScriptTypeNone) // { // CCScriptEngineManager::sharedManager()->getScriptEngine()->executeAccelerometerEvent(this, pAccelerationValue); // } } /// isKeypadEnabled getter bool CCLayer::isKeypadEnabled() { return m_bIsKeypadEnabled; } /// isKeypadEnabled setter void CCLayer::setKeypadEnabled(bool enabled) { if (enabled != m_bIsKeypadEnabled) { m_bIsKeypadEnabled = enabled; if (m_bIsRunning) { CCDirector* pDirector = CCDirector::sharedDirector(); if (enabled) { pDirector->getKeypadDispatcher()->addDelegate(this); } else { pDirector->getKeypadDispatcher()->removeDelegate(this); } } } } /// Callbacks void CCLayer::onEnter() { CCDirector* pDirector = CCDirector::sharedDirector(); // register 'parent' nodes first // since events are propagated in reverse order if (m_bIsTouchEnabled) { this->registerWithTouchDispatcher(); } // then iterate over all the children CCNode::onEnter(); // add this layer to concern the Accelerometer Sensor if (m_bIsAccelerometerEnabled) { pDirector->getAccelerometer()->setDelegate(this); } // add this layer to concern the keypad msg if (m_bIsKeypadEnabled) { pDirector->getKeypadDispatcher()->addDelegate(this); } } void CCLayer::onExit() { CCDirector* pDirector = CCDirector::sharedDirector(); if( m_bIsTouchEnabled ) { pDirector->getTouchDispatcher()->removeDelegate(this); // [lua]:don't unregister script touch handler, or the handler will be destroyed // unregisterScriptTouchHandler(); } // remove this layer from the delegates who concern Accelerometer Sensor if (m_bIsAccelerometerEnabled) { pDirector->getAccelerometer()->setDelegate(NULL); } // remove this layer from the delegates who concern the keypad msg if (m_bIsKeypadEnabled) { pDirector->getKeypadDispatcher()->removeDelegate(this); } CCNode::onExit(); } void CCLayer::onEnterTransitionDidFinish() { if (m_bIsAccelerometerEnabled) { CCDirector* pDirector = CCDirector::sharedDirector(); pDirector->getAccelerometer()->setDelegate(this); } CCNode::onEnterTransitionDidFinish(); } bool CCLayer::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { return excuteScriptTouchHandler(CCTOUCHBEGAN, pTouch) == 0 ? false : true; } CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent); CCAssert(false, "Layer#ccTouchBegan override me"); return true; } void CCLayer::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHMOVED, pTouch); return; } CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHENDED, pTouch); return; } CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHCANCELLED, pTouch); return; } CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchesBegan(CCSet *pTouches, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHBEGAN, pTouches); return; } CC_UNUSED_PARAM(pTouches); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchesMoved(CCSet *pTouches, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHMOVED, pTouches); return; } CC_UNUSED_PARAM(pTouches); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchesEnded(CCSet *pTouches, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHENDED, pTouches); return; } CC_UNUSED_PARAM(pTouches); CC_UNUSED_PARAM(pEvent); } void CCLayer::ccTouchesCancelled(CCSet *pTouches, CCEvent *pEvent) { if (kScriptTypeNone != m_eScriptType) { excuteScriptTouchHandler(CCTOUCHCANCELLED, pTouches); return; } CC_UNUSED_PARAM(pTouches); CC_UNUSED_PARAM(pEvent); } /// ColorLayer CCLayerColor::CCLayerColor() : m_cOpacity(0) , m_tColor( ccc3(0,0,0) ) { // default blend function m_tBlendFunc.src = CC_BLEND_SRC; m_tBlendFunc.dst = CC_BLEND_DST; } CCLayerColor::~CCLayerColor() { } // Opacity and RGB color protocol /// opacity getter GLubyte CCLayerColor::getOpacity() { return m_cOpacity; } /// opacity setter void CCLayerColor::setOpacity(GLubyte var) { m_cOpacity = var; updateColor(); } /// color getter const ccColor3B& CCLayerColor::getColor() { return m_tColor; } /// color setter void CCLayerColor::setColor(const ccColor3B& var) { m_tColor = var; updateColor(); } /// blendFunc getter ccBlendFunc CCLayerColor::getBlendFunc() { return m_tBlendFunc; } /// blendFunc setter void CCLayerColor::setBlendFunc(ccBlendFunc var) { m_tBlendFunc = var; } CCLayerColor * CCLayerColor::layerWithColor(const ccColor4B& color, GLfloat width, GLfloat height) { return CCLayerColor::create(color,width,height); } CCLayerColor * CCLayerColor::create(const ccColor4B& color, GLfloat width, GLfloat height) { CCLayerColor * pLayer = new CCLayerColor(); if( pLayer && pLayer->initWithColor(color,width,height)) { pLayer->autorelease(); return pLayer; } CC_SAFE_DELETE(pLayer); return NULL; } CCLayerColor * CCLayerColor::layerWithColor(const ccColor4B& color) { return CCLayerColor::create(color); } CCLayerColor * CCLayerColor::create(const ccColor4B& color) { CCLayerColor * pLayer = new CCLayerColor(); if(pLayer && pLayer->initWithColor(color)) { pLayer->autorelease(); return pLayer; } CC_SAFE_DELETE(pLayer); return NULL; } bool CCLayerColor::init() { CCSize s = CCDirector::sharedDirector()->getWinSize(); return initWithColor(ccc4(0,0,0,0), s.width, s.height); } bool CCLayerColor::initWithColor(const ccColor4B& color, GLfloat w, GLfloat h) { if( CCLayer::init() ) { // default blend function m_tBlendFunc.src = GL_SRC_ALPHA; m_tBlendFunc.dst = GL_ONE_MINUS_SRC_ALPHA; m_tColor.r = color.r; m_tColor.g = color.g; m_tColor.b = color.b; m_cOpacity = color.a; for (int i = 0; iprogramForKey(kCCShader_PositionColor)); } return true; } bool CCLayerColor::initWithColor(const ccColor4B& color) { CCSize s = CCDirector::sharedDirector()->getWinSize(); this->initWithColor(color, s.width, s.height); return true; } /// override contentSize void CCLayerColor::setContentSize(const CCSize & size) { m_pSquareVertices[1].x = size.width; m_pSquareVertices[2].y = size.height; m_pSquareVertices[3].x = size.width; m_pSquareVertices[3].y = size.height; CCLayer::setContentSize(size); } void CCLayerColor::changeWidthAndHeight(GLfloat w ,GLfloat h) { this->setContentSize(CCSizeMake(w, h)); } void CCLayerColor::changeWidth(GLfloat w) { this->setContentSize(CCSizeMake(w, m_tContentSize.height)); } void CCLayerColor::changeHeight(GLfloat h) { this->setContentSize(CCSizeMake(m_tContentSize.width, h)); } void CCLayerColor::updateColor() { for( unsigned int i=0; i < 4; i++ ) { m_pSquareColors[i].r = m_tColor.r / 255.0f; m_pSquareColors[i].g = m_tColor.g / 255.0f; m_pSquareColors[i].b = m_tColor.b / 255.0f; m_pSquareColors[i].a = m_cOpacity / 255.0f; } } void CCLayerColor::draw() { CC_NODE_DRAW_SETUP(); ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position | kCCVertexAttribFlag_Color ); // // Attributes // glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, m_pSquareVertices); glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_FLOAT, GL_FALSE, 0, m_pSquareColors); ccGLBlendFunc( m_tBlendFunc.src, m_tBlendFunc.dst ); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); CC_INCREMENT_GL_DRAWS(1); } // // CCLayerGradient // CCLayerGradient* CCLayerGradient::layerWithColor(const ccColor4B& start, const ccColor4B& end) { return CCLayerGradient::create(start, end); } CCLayerGradient* CCLayerGradient::create(const ccColor4B& start, const ccColor4B& end) { CCLayerGradient * pLayer = new CCLayerGradient(); if( pLayer && pLayer->initWithColor(start, end)) { pLayer->autorelease(); return pLayer; } CC_SAFE_DELETE(pLayer); return NULL; } CCLayerGradient* CCLayerGradient::layerWithColor(const ccColor4B& start, const ccColor4B& end, const CCPoint& v) { return CCLayerGradient::create(start, end, v); } CCLayerGradient* CCLayerGradient::create(const ccColor4B& start, const ccColor4B& end, const CCPoint& v) { CCLayerGradient * pLayer = new CCLayerGradient(); if( pLayer && pLayer->initWithColor(start, end, v)) { pLayer->autorelease(); return pLayer; } CC_SAFE_DELETE(pLayer); return NULL; } bool CCLayerGradient::initWithColor(const ccColor4B& start, const ccColor4B& end) { return initWithColor(start, end, ccp(0, -1)); } bool CCLayerGradient::initWithColor(const ccColor4B& start, const ccColor4B& end, const CCPoint& v) { m_endColor.r = end.r; m_endColor.g = end.g; m_endColor.b = end.b; m_cEndOpacity = end.a; m_cStartOpacity = start.a; m_AlongVector = v; m_bCompressedInterpolation = true; return CCLayerColor::initWithColor(ccc4(start.r, start.g, start.b, 255)); } void CCLayerGradient::updateColor() { CCLayerColor::updateColor(); float h = ccpLength(m_AlongVector); if (h == 0) return; float c = sqrtf(2.0f); CCPoint u = ccp(m_AlongVector.x / h, m_AlongVector.y / h); // Compressed Interpolation mode if (m_bCompressedInterpolation) { float h2 = 1 / ( fabsf(u.x) + fabsf(u.y) ); u = ccpMult(u, h2 * (float)c); } float opacityf = (float)m_cOpacity / 255.0f; ccColor4F S = { m_tColor.r / 255.0f, m_tColor.g / 255.0f, m_tColor.b / 255.0f, m_cStartOpacity * opacityf / 255.0f }; ccColor4F E = { m_endColor.r / 255.0f, m_endColor.g / 255.0f, m_endColor.b / 255.0f, m_cEndOpacity * opacityf / 255.0f }; // (-1, -1) m_pSquareColors[0].r = E.r + (S.r - E.r) * ((c + u.x + u.y) / (2.0f * c)); m_pSquareColors[0].g = E.g + (S.g - E.g) * ((c + u.x + u.y) / (2.0f * c)); m_pSquareColors[0].b = E.b + (S.b - E.b) * ((c + u.x + u.y) / (2.0f * c)); m_pSquareColors[0].a = E.a + (S.a - E.a) * ((c + u.x + u.y) / (2.0f * c)); // (1, -1) m_pSquareColors[1].r = E.r + (S.r - E.r) * ((c - u.x + u.y) / (2.0f * c)); m_pSquareColors[1].g = E.g + (S.g - E.g) * ((c - u.x + u.y) / (2.0f * c)); m_pSquareColors[1].b = E.b + (S.b - E.b) * ((c - u.x + u.y) / (2.0f * c)); m_pSquareColors[1].a = E.a + (S.a - E.a) * ((c - u.x + u.y) / (2.0f * c)); // (-1, 1) m_pSquareColors[2].r = E.r + (S.r - E.r) * ((c + u.x - u.y) / (2.0f * c)); m_pSquareColors[2].g = E.g + (S.g - E.g) * ((c + u.x - u.y) / (2.0f * c)); m_pSquareColors[2].b = E.b + (S.b - E.b) * ((c + u.x - u.y) / (2.0f * c)); m_pSquareColors[2].a = E.a + (S.a - E.a) * ((c + u.x - u.y) / (2.0f * c)); // (1, 1) m_pSquareColors[3].r = E.r + (S.r - E.r) * ((c - u.x - u.y) / (2.0f * c)); m_pSquareColors[3].g = E.g + (S.g - E.g) * ((c - u.x - u.y) / (2.0f * c)); m_pSquareColors[3].b = E.b + (S.b - E.b) * ((c - u.x - u.y) / (2.0f * c)); m_pSquareColors[3].a = E.a + (S.a - E.a) * ((c - u.x - u.y) / (2.0f * c)); } const ccColor3B& CCLayerGradient::getStartColor() { return m_tColor; } void CCLayerGradient::setStartColor(const ccColor3B& color) { setColor(color); } void CCLayerGradient::setEndColor(const ccColor3B& color) { m_endColor = color; updateColor(); } const ccColor3B& CCLayerGradient::getEndColor() { return m_endColor; } void CCLayerGradient::setStartOpacity(GLubyte o) { m_cStartOpacity = o; updateColor(); } GLubyte CCLayerGradient::getStartOpacity() { return m_cStartOpacity; } void CCLayerGradient::setEndOpacity(GLubyte o) { m_cEndOpacity = o; updateColor(); } GLubyte CCLayerGradient::getEndOpacity() { return m_cEndOpacity; } void CCLayerGradient::setVector(const CCPoint& var) { m_AlongVector = var; updateColor(); } const CCPoint& CCLayerGradient::getVector() { return m_AlongVector; } bool CCLayerGradient::isCompressedInterpolation() { return m_bCompressedInterpolation; } void CCLayerGradient::setCompressedInterpolation(bool compress) { m_bCompressedInterpolation = compress; updateColor(); } /// MultiplexLayer CCLayerMultiplex::CCLayerMultiplex() : m_nEnabledLayer(0) , m_pLayers(NULL) { } CCLayerMultiplex::~CCLayerMultiplex() { CC_SAFE_RELEASE(m_pLayers); } CCLayerMultiplex * CCLayerMultiplex::layerWithLayers(CCLayer * layer, ...) { va_list args; va_start(args,layer); CCLayerMultiplex * pMultiplexLayer = new CCLayerMultiplex(); if(pMultiplexLayer && pMultiplexLayer->initWithLayers(layer, args)) { pMultiplexLayer->autorelease(); va_end(args); return pMultiplexLayer; } va_end(args); CC_SAFE_DELETE(pMultiplexLayer); return NULL; } CCLayerMultiplex * CCLayerMultiplex::create(CCLayer * layer, ...) { va_list args; va_start(args,layer); CCLayerMultiplex * pMultiplexLayer = new CCLayerMultiplex(); if(pMultiplexLayer && pMultiplexLayer->initWithLayers(layer, args)) { pMultiplexLayer->autorelease(); va_end(args); return pMultiplexLayer; } va_end(args); CC_SAFE_DELETE(pMultiplexLayer); return NULL; } CCLayerMultiplex * CCLayerMultiplex::layerWithLayer(CCLayer* layer) { return CCLayerMultiplex::createWithLayer(layer); } CCLayerMultiplex * CCLayerMultiplex::createWithLayer(CCLayer* layer) { return CCLayerMultiplex::create(layer, NULL); } void CCLayerMultiplex::addLayer(CCLayer* layer) { CCAssert(m_pLayers, ""); m_pLayers->addObject(layer); } bool CCLayerMultiplex::initWithLayers(CCLayer *layer, va_list params) { m_pLayers = CCArray::createWithCapacity(5); m_pLayers->retain(); m_pLayers->addObject(layer); CCLayer *l = va_arg(params,CCLayer*); while( l ) { m_pLayers->addObject(l); l = va_arg(params,CCLayer*); } m_nEnabledLayer = 0; this->addChild((CCNode*)m_pLayers->objectAtIndex(m_nEnabledLayer)); return true; } void CCLayerMultiplex::switchTo(unsigned int n) { CCAssert( n < m_pLayers->count(), "Invalid index in MultiplexLayer switchTo message" ); this->removeChild((CCNode*)m_pLayers->objectAtIndex(m_nEnabledLayer), true); m_nEnabledLayer = n; this->addChild((CCNode*)m_pLayers->objectAtIndex(n)); } void CCLayerMultiplex::switchToAndReleaseMe(unsigned int n) { CCAssert( n < m_pLayers->count(), "Invalid index in MultiplexLayer switchTo message" ); this->removeChild((CCNode*)m_pLayers->objectAtIndex(m_nEnabledLayer), true); //[layers replaceObjectAtIndex:enabledLayer withObject:[NSNull null]]; m_pLayers->replaceObjectAtIndex(m_nEnabledLayer, NULL); m_nEnabledLayer = n; this->addChild((CCNode*)m_pLayers->objectAtIndex(n)); } NS_CC_END