Cocos2d-x genie collision detection (method 1)

Declare the function collision detection function, two genie and rewrite update

Bool isCollision (CCPoint p1, CCPoint p2, int w1, int h1, int w2, int h2); CCSprite * sp2; CCSprite * sp1; virtual void update (float delta ); // override the virtual void registerWithTouchDispatcher (); virtual bool ccTouchBegan (CCTouch * pTouch, CCEvent * pEvent); virtual void ccTouchEnded (CCTouch * pTouch, CCEvent * pEvent ); virtual void ccTouchMoved (CCTouch * pTouch, CCEvent * pEvent );

Cpp file implementation
First 2 genie

sp1 = CCSprite::create("5.png");sp1->setScale(0.3);sp1->setPosition(ccp(100, visibleSize.height/2));this->addChild(sp1);sp2 = CCSprite::create("6.png");sp2->setScale(0.3);sp2->setPosition(ccp(300, visibleSize.height/2));this->addChild(sp2);

Enable touch and Timer

setTouchEnabled(true);scheduleUpdate();

Touch the mobile genie sp2 to collide with the genie sp1

Bool HelloWorld: ccTouchBegan (CCTouch * pTouch, CCEvent * pEvent) {return true;} void HelloWorld: ccTouchEnded (CCTouch * pTouch, CCEvent * pEvent ){;} // mobile genie void HelloWorld: ccTouchMoved (CCTouch * pTouch, CCEvent * pEvent) {CCSize winSize = CCDirector: sharedDirector ()-> getVisibleSize (); if (sp2) {CCPoint pos = pTouch-> getDelta (); CCPoint currentPos = sp2-> getPosition (); currentPos = ccpAdd (currentPos, pos); currentPos = ccpClamp (currentPos, CCPointZero, ccp (winSize. width, winSize. height); // you can specify the setPosition (currentPos) of the sprite output screen. // you can call this operation to reset the sprite coordinates.} void HelloWorld: registerWithTouchDispatcher () {CCDirector * pDirector = CCDirector: sharedDirector (); pDirector-> getTouchDispatcher ()-> addTargetedDelegate (this, 0, true );}

Update function detection collision, isCollision parameter sequence: Coordinates of genie 1, coordinates of genie 2, width and height of genie 1, width and height of genie 2

bool HelloWorld::isCollision( CCPoint p1,CCPoint p2,int w1,int h1,int w2,int h2 ){if(abs(p1.x - p2.x) < w1 + w2 && abs(p1.y - p2.y) < h1 + h2){return true;}return false;}void HelloWorld::update(float delta){if (isCollision(sp1->getPosition(),sp2->getPosition(), 45, 28.3, 47.5, 35)){CCLOG("--------Is Collision, sp2.x: %f, sp2.y: %f", sp2->getPositionX(), sp2->getPositionY());}elseCCLOG("++++++++ Is't Collision, sp2.x: %f, sp2.y: %f", sp2->getPositionX(), sp2->getPositionY());}

Source code: http://download.csdn.net/detail/oyangyufu/7415923