C++ 创建了许多CCSPRIT,但当触发CCTouchStart时,总是给出最后一个CCSPRIT
更新我改为更简单的示例 好的,现在我真的很困惑,我简化了这个类,因为当我在网上阅读时,建议将CCNode扩展得比CCSprite更好 并将其保留为CCNode的成员 下面是一个基于Hello cpp的非常简单的示例。C++ 创建了许多CCSPRIT,但当触发CCTouchStart时,总是给出最后一个CCSPRIT,c++,cocos2d-x,C++,Cocos2d X,更新我改为更简单的示例 好的,现在我真的很困惑,我简化了这个类,因为当我在网上阅读时,建议将CCNode扩展得比CCSprite更好 并将其保留为CCNode的成员 下面是一个基于Hello cpp的非常简单的示例。 问题是同样的,当触摸任何一个Gem实例时,我会打印最后添加的Gem,为什么?? 我希望每个touch都会给我一个正确的实例(我打印id和name) 使用COCOS2D2.2.1RC0X-2.1.3C++,我有一些奇怪的东西,我创建了10个CcSpRITE。 我有一个类扩展了CCSp
问题是同样的,当触摸任何一个Gem实例时,我会打印最后添加的Gem,为什么??
我希望每个touch都会给我一个正确的实例(我打印id和name)
使用COCOS2D2.2.1RC0X-2.1.3C++,我有一些奇怪的东西,我创建了10个CcSpRITE。 我有一个类扩展了CCSprite和CCTargetedTouchDelegate,如下所示:
Gem.cpp#include "Gem.h"
Gem::Gem()
{
;
}
Gem::~Gem()
{
;
}
void Gem::onEnter()
{
CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
CCNode::onEnter();
}
void Gem::onExit()
{
CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->removeDelegate(this);
CCNode::onExit();
}
bool Gem::ccTouchBegan(CCTouch* touch, CCEvent* event)
{
CCPoint touchPoint = touch->getLocation();
CCLOG("Gem Touched! ImageName:%s |GemId:%s x:%f ,y:%f myspriteX:%f, myspriteY:%f nodePosX:%f nodePosY:%f",this->getImageName().c_str(),this->getGemId().c_str(),touchPoint.x,touchPoint.y,getGemSprite()->getPositionX(),getGemSprite()->getPositionY(),this->getPositionX(),this->getPositionY());
return true;
}
void Gem::ccTouchMoved(CCTouch* touch, CCEvent* event)
{
CCPoint touchPoint = touch->getLocation();
}
void Gem::ccTouchEnded(CCTouch* touch, CCEvent* event)
{
}
Gem.h
helloWorldScene.cpp init()方法
除了触摸屏幕并触发Gem::cctouchBegined方法外,一切正常。它总是给我最后一个CCSprite(我在屏幕上有50个)
这是为什么?我这里缺少什么?因为每个
Gem
实例扩展CCTargetedTouchDelegate
和register touch dispatcher,只会触发最高或最新添加的
因此,正确的方法是在HelloWorld
类中实现CCTargetedTouchDelegate
,当触摸发生时,检查触摸点触摸了哪个Gem
以下是一种用于检查触摸是否位于某个节点的方法:
bool Gem::isTouchInside(CCTouch* pTouch)
{
CCPoint touchLocation = pTouch->getLocation();
CCRect rect =
CCRectApplyAffineTransform(CCRectMake(0 ,
0 ,
this->getContentSize().width,
this->getContentSize().height),
this->nodeToWorldTransform());
return rect.containsPoint(touchLocation);
}
bool HelloWorld::init()
{
bool bRet = false;
//////////////////////////////////////////////////////////////////////////
// super init first
//////////////////////////////////////////////////////////////////////////
if(!CCLayer::init())
return false;
CCSize m_winSize;
CCSize visibleSize;
CCPoint origin;
m_winSize = CCDirector::sharedDirector()->getWinSize();
visibleSize = CCDirector::sharedDirector()->getVisibleSize();
origin = CCDirector::sharedDirector()->getVisibleOrigin();
CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFramesWithFile("sprites.plist","sprites.png");
CCSpriteBatchNode* gameBatchNode = CCSpriteBatchNode::create("sprites.png"/*,200*/);
CCSprite *bg= CCSprite::create("grideFinal.png");
//bg->setAnchorPoint(ccp(0,0));
bg->setPosition(ccp(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));
this->addChild(bg,1);
Gem* gem1 = new Gem();
gem1->retain();
gem1->setGemId("gem1");
gem1->setImageName("img_1");
gem1->setGemSprite(CCSprite::createWithSpriteFrameName("gem1.png"));
Gem* gem2 = new Gem();
gem2->retain();
gem2->setGemId("gem2");
gem2->setImageName("img_2");
gem2->setGemSprite(CCSprite::createWithSpriteFrameName("gem2.png"));
gem1->setAnchorPoint(ccp(0,0));
gem2->setAnchorPoint(ccp(0,0));
gem1->setPosition(ccp(0,0));
gem2->setPosition(ccp(gem1->getGemSprite()->getContentSize().width,40));
gem1->getGemSprite()->setAnchorPoint(ccp(0,0));
gem2->getGemSprite()->setAnchorPoint(ccp(0,0));
gem1->getGemSprite()->setPosition(ccp(0,0));
gem2->getGemSprite()->setPosition(ccp(gem1->getGemSprite()->getContentSize().width,40));
//gameBatchNode->addChild(gem1->getGemSprite(),4,44);
//gameBatchNode->addChild(gem2->getGemSprite(),4,45);
this->addChild(gameBatchNode);
bg->addChild(gem1->getGemSprite(),50);
bg->addChild(gem2->getGemSprite(),50);
bg->addChild(gem1,50);
bg->addChild(gem2,50);
bRet = true;
return bRet;
}
bool Gem::isTouchInside(CCTouch* pTouch)
{
CCPoint touchLocation = pTouch->getLocation();
CCRect rect =
CCRectApplyAffineTransform(CCRectMake(0 ,
0 ,
this->getContentSize().width,
this->getContentSize().height),
this->nodeToWorldTransform());
return rect.containsPoint(touchLocation);
}