《Cocos2d-x权威指南》第11章实例代码

// // GameScene.cpp // example11-1 // // Created by shuoquan man on 12-10-14. // #include "GameAboutScene.h" #include "GameMenuScene.h" #include "GameScene.h" #include "GameObjHero.h" #include "GameHeroBullet.h" #include "GameEnemyBullet.h" using namespace cocos2d; CCScene* GameMain::scene() { CCScene *scene = CCScene::create(); GameMain *layer = GameMain::create(); scene->addChild(layer); return scene; } void GameMain::releaseenemyBullet(int x,int y) { for(unsigned int i = 0; i<enemybullets->capacity(); i++){ if(!((GameEnemyBullet *)enemybullets->objectAtIndex(i))->getIsvisble()){ ((GameEnemyBullet *)enemybullets->objectAtIndex(i))->setPosition(ccp(x,y)); ((GameEnemyBullet *)enemybullets->objectAtIndex(i))->setIsVisable(); break; } } } void GameMain::releaseheroBullet(int x,int y) { for(unsigned int i=0; i<bullets->capacity(); i++){ if(!((GameHeroBullet *)bullets->objectAtIndex(i))->getIsvisble()){ ((GameHeroBullet *)bullets->objectAtIndex(i))->setPosition(ccp(x,y)); ((GameHeroBullet *)bullets->objectAtIndex(i))->setIsVisable(); break; } } } bool GameMain::init() { if(!CCLayer::init()){ return false; } CCSize size=CCDirector::sharedDirector()->getWinSize(); bg1=CCSprite::create("bg.png"); bg1->setScale(0.5); bg2=CCSprite::create("bg.png"); bg2->setScale(0.5); bg1->setAnchorPoint(ccp(0,0)); bg2->setAnchorPoint(ccp(0,0)); bg1->setPosition( ccp(0,0) ); bg2->setPosition( ccp(0,size.height) ); this->addChild(bg1, 0); this->addChild(bg2, 0); hero = GameObjHero::create(); hero->setPosition(ccp(size.width/2,-50)); hero->setScale(0.5); addChild(hero,2,1); hero->runAction(CCMoveBy::create(0.5,ccp(0,150))); enemys = CCArray::create(); for(int i=0; i<3; i++){ int type = i + 1; GameObjEnemy* enemy = GameObjEnemy::create(); enemy->setPosition(ccp(size.width/4 * type,size.height + 50)); enemy->setScale(0.5); enemy->setType(type); enemys->addObject(enemy); addChild(enemy,1); enemy->movestart(); } enemys->retain(); blood = 3; CCSpriteBatchNode* ui = CCSpriteBatchNode::create("cat.png"); //CCNode *ui = CCNode::create(); blood1 = CCSprite::createWithTexture(ui->getTexture()); blood1->setPosition(ccp(20,size.height - 20)); blood1->setScale(0.2f); ui->addChild(blood1); blood2 = CCSprite::createWithTexture(ui->getTexture()); blood2->setPosition(ccp(50,size.height - 20)); blood2->setScale(0.2f); ui->addChild(blood2); blood3 = CCSprite::createWithTexture(ui->getTexture()); blood3->setPosition(ccp(80,size.height - 20)); blood3->setScale(0.2f); ui->addChild(blood3); addChild(ui,4); bullets = CCArray::create(/*5*/); for(unsigned int i=0; i<bullets->capacity(); i++){ GameHeroBullet * mybullet = GameHeroBullet::create(); mybullet->setIsNotVisable(this); mybullet->setScale(0.5); bullets->addObject(mybullet); this->addChild(mybullet,3); } bullets->retain(); enemybullets = CCArray::create();//10 for(unsigned int i=0; i<enemybullets->capacity(); i++){ GameEnemyBullet * mybullet = GameEnemyBullet::create(); mybullet->setIsNotVisable(this); mybullet->setScale(0.5); enemybullets->addObject(mybullet); this->addChild(mybullet,3); } gamemark = GameMark::create(); addChild(gamemark,4); enemybullets->retain(); gameover = CCSprite::create("gameover.png"); gameover->setAnchorPoint(ccp(0.5,0.5)); gameover->setPosition(ccp(0,0)); gameover->setPosition(ccp(size.width/2,size.height/2 + 70)); gameover->setVisible(false); gameover->setScale(0.5); addChild(gameover,5); CCMenuItemImage *pCloseItem = CCMenuItemImage::create("back.png","back.png", this, menu_selector(GameMain::menuBackCallback)); pCloseItem->setPosition( ccp(size.width/2,size.height/2 - 50) ); pCloseItem->setScale(0.5); CCMenu* pMenu = CCMenu::create(pCloseItem, NULL); pMenu->setPosition( CCPointZero ); this->addChild(pMenu,5,25); pMenu->setVisible(false); pMenu->setEnabled(false); isreduce = false; isover = false; scheduleUpdate(); return true; } void GameMain::menuBackCallback(CCObject* pSender) { CCDirector::sharedDirector()->replaceScene(GameMenu::scene()); } bool GameMain::isCollion(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 GameMain::setover() { CCMenu* pMenu = (CCMenu *)this->getChildByTag(25); pMenu->setVisible(true); pMenu->setEnabled(true); gameover->setVisible(true); gameover->setScale(0); pMenu->setScale(0); pMenu->runAction(CCScaleTo::create(0.5,1)); gameover->runAction(CCScaleTo::create(0.5,0.5)); } void GameMain::setherohurt() { hero->stopAllActions(); switch(blood){ case 3: blood1->setVisible(false); blood --; break; case 2: blood2->setVisible(false); blood --; break; case 1: blood3->setVisible(false); blood --; break; case 0: if(! isover){ isover = true; setover(); } break; } CCActionInterval* action = CCBlink::create(5, 10); hero->runAction(action); schedule(schedule_selector(GameMain::resetreduce), 5.0f); isreduce = true; } void GameMain::resetreduce(float dt) { isreduce = false; } void GameMain::update(float time) { bg1->setPosition(ccp(bg1->getPosition().x,bg1->getPosition().y - 2)); bg2->setPosition(ccp(bg2->getPosition().x,bg2->getPosition().y - 2)); if(bg2->getPosition().y < 0){ float temp = bg2->getPosition().y + 480; bg1->setPosition(ccp(bg2->getPosition().x,temp)); } if(bg1->getPosition().y < 0){ float temp = bg1->getPosition().y + 480; bg2->setPosition(ccp(bg1->getPosition().x, temp)); } CCPoint hpos = hero->getPosition(); for(int i=0; i<3; i++){ GameObjEnemy * enemy = ((GameObjEnemy *) enemys->objectAtIndex(i)); CCPoint epos = enemy->getPosition(); if(enemy->islife){ for(unsigned int i=0; i<bullets->capacity(); i++){ if(((GameHeroBullet *)bullets->objectAtIndex(i))->getIsvisble()){ if(isCollion(((GameHeroBullet *)bullets->objectAtIndex(i))->getPosition(),epos,5,13,21,28)){ enemy->setdie(); gamemark->addnumber(200); break; } } } } if(!isreduce && enemy->islife && isCollion(hpos,epos,21,22.5,21,28)){ enemy->setdie(); setherohurt(); } } if(!isreduce){ for(unsigned int i=0; i<enemybullets->capacity(); i++){ if(isCollion(hpos,((GameEnemyBullet *)enemybullets->objectAtIndex(i))->getPosition(),21,22.5,5,13)){ setherohurt(); } } } }