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Cocos2d－x碰撞检查与消灭的实现

2019-05-18 Cocos2d-x 前端之家

前端之家收集整理的这篇文章主要介绍了Cocos2d－x碰撞检查与消灭的实现，前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。

 
   
 #ifndef__HELLOWORLD_SCENE_H__
 #define__HELLOWORLD_SCENE_H__
 
 #include"cocos2d.h"
 usingnamespacecocos2d;
 
classHelloWorld:publiccocos2d::CCLayerColor
 {
public:
 //Method'init'incocos2d-xreturnsbool,insteadof'id'incocos2d-iphone(anobjectpointer)
virtualboolinit();
 //there'sno'id'incpp,sowerecommendtoreturntheclassinstancepointer
 staticcocos2d::CCScene*scene();
//aselectorcallback
voidmenuCloseCallback(CCObject*pSender);
//preprocessormacrofor"staticcreate()"constructor(node()deprecated)
 CREATE_FUNC(HelloWorld);
voidaddTarget();
voidspriteMoveFinished(CCNode*sender);
voidgameLogic(cocos2d::CCTimedt);
voidccTouchesEnded(CCSet*touches,CCEvent*event);
CCArray*aarayTarget;//敌人
CCArray*arrayProjectile;//飞镖
voidupdate(CCTimedt);
 };
 #endif//__HELLOWORLD_SCENE_H__

HelloWorldScence.cpp

[objc]view plaincopyprint? 
   

#include"HelloWorldScene.h"

#include"SimpleAudioEngine.h"
namespacecocos2d;
namespaceCocosDenshion;
CCScene*HelloWorld::scene()
//'scene'isanautoreleaSEObject
CCScene*scene=CCScene::create();
//'layer'isanautoreleaSEObject
HelloWorld*layer=HelloWorld::create();
//addlayerasachildtoscene
scene->addChild(layer);
//returnthescene
returnscene;
}
//on"init"youneedtoinitializeyourinstance
boolHelloWorld::init()
//////////////////////////////
//1.superinitfirst
if(CCLayerColor::initWithColor(ccc4(255,255,255)))
CCSizewinSize=CCDirector::sharedDirector()->getWinSize();//获取屏幕大小
arrayProjectile=CCArray::create();
aarayTarget=CCArray::create();
floatsprite_scale=2.0;
CCSprite*Player=CCSprite::create("Player.png");
Player->setScale(sprite_scale);
Player->setPosition(ccp(Player->getContentSize().width*sprite_scale/2.0,winSize.height/2.0));
this->addChild(Player);
aarayTarget->retain();
arrayProjectile->retain();
this->schedule(schedule_selector(HelloWorld::gameLogic),1.0);
this->schedule(schedule_selector(HelloWorld::update));
this->setTouchEnabled(true);
returntrue;
}
else{
false;
voidHelloWorld::gameLogic(cocos2d::CCTimedt){
this->addTarget();
HelloWorld::addTarget(){
CCSizewinSize=CCDirector::sharedDirector()->getWinSize();
CCSprite*target=CCSprite::create("Target.png");
//随机位置
intminY=target->getContentSize().height/2.0;
intmaxY=winSize.height-target->getContentSize().height/2.0;
intrangeY=maxY-minY;
intactualY=rand()%rangeY+minY;
target->setPosition(ccp(winSize.width-target->getContentSize().width/2.0,actualY));
target->setTag(1);
this->addChild(target);
aarayTarget->addObject(target);
//随机速度
floatminDuration=2.0;
floatmaxDuration=4.0;
intrangeDuration=maxDuration-minDuration;
floatactualDuration=rand()%rangeDuration+minDuration;
CCFiniteTimeAction*actionMove=CCMoveTo::create(actualDuration,ccp(0-target->getContentSize().width/2.0,actualY));//0代表屏幕外，这句表示在3秒内从初始位置移动到屏幕外
//增加一个回调函数，回收移动到屏幕外的精灵
CCFiniteTimeAction*actionMoveDone=CCCallFuncN::create(this,callfuncN_selector(HelloWorld::spriteMoveFinished));
target->runAction(CCSequence::create(actionMove,actionMoveDone,NULL));
HelloWorld::spriteMoveFinished(cocos2d::CCNode*sender){
CCSprite*sprite=(CCSprite*)sender;
//this->removeChild(sprite,true);
if(sprite->getTag()==1){
aarayTarget->removeObject(sprite);//清除敌人
}elseif(sprite->getTag()==2){
arrayProjectile->removeObject(sprite);//清除飞镖
//发射飞镖
HelloWorld::ccTouchesEnded(cocos2d::cocos2d::CCEvent*event){
CCTouch*touch=(CCTouch*)touches->anyObject();
CCPointlocation=touch->getLocationInView();
location=this->convertTouchToNodeSpace(touch);
CCSprite*projectile=CCSprite::create("Projectile.png");
projectile->setPosition(ccp(20,winSize.height/2));
floatoffX=location.x-projectile->getPositionX();
floatoffY=location.y-projectile->getPositionY();
if(offX<=0){
return;
projectile->setTag(2);
this->addChild(projectile);
arrayProjectile->addObject(projectile);
floatangle=offY/offX;
floatrealX=winSize.width+projectile->getContentSize().width/2;
floatrealY=realX*angle+projectile->getPositionY();
CCPointfinalPosition=ccp(realX,realY);
//获取飞镖飞行时间
floatlength=sqrtf(realX*realX+realY*realY);
floatvelocity=480;
floatrealMoveDuration=length/velocity;
projectile->runAction(CCSequence::create(CCMoveTo::create(realMoveDuration,finalPosition),CCCallFuncN::create(this,callfuncN_selector(HelloWorld::spriteMoveFinished)),153); background-color:inherit; font-weight:bold">NULL));
//碰撞检测，消除飞镖和敌人
HelloWorld::update(cocos2d::CCTimedt){
for(inti=0;i<aarayTarget->count();i++){
CCSprite*target=(CCSprite*)aarayTarget->objectAtIndex(i);
intj=0;j<arrayProjectile->count();j++){
CCSprite*projectile=(CCSprite*)arrayProjectile->objectAtIndex(j);
if(target->boundingBox().intersectsRect(projectile->boundingBox())){
aarayTarget->removeObjectAtIndex(i);
arrayProjectile->removeObjectAtIndex(j);
this->removeChild(target);
this->removeChild(projectile);
break;
HelloWorld::menuCloseCallback(CCObject*pSender)
{
CCDirector::sharedDirector()->end();
#if(CC_TARGET_PLATFORM==CC_PLATFORM_IOS)
exit(0);
#endif
}