竖屏小游戏--喵星战争源码分析【完整】
2014-09-19 12:11
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转自：/article/1379389.html
ccp文件介绍：
GameMenuScene.cpp游戏主菜单
GameMainScene.cpp游戏主页面
GameObjHero.cpp主角
GameHeroBullet.cpp主角的子弹
GameObjEnemy.cpp敌人
GameEnemyBullet.cpp敌人的子弹
GameAboutScene.cpp关于页面
GameMark.cpp游戏分数
运行游戏进入游戏主菜单页面
代码：
GameMenuScene类init()函数，初始化主菜单页面背景图
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CCSprite* back = CCSprite::create("bg.png");
back->setScale(0.5);
back->setPosition(ccp(size.width/2,size.height/2));
this->addChild(back,0,0);
初始化主菜单页面背景星球图片
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CCSprite* bgstar = CCSprite::create("moon.png");
bgstar->setAnchorPoint(ccp(0.5,0));
bgstar->setScale(0.5);
bgstar->setPosition(ccp(size.width/3 * 2, 0));
this->addChild(bgstar,1,1);
初始化主菜单页面标题名称meowstar、battle
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CCNode* title = CCNode::create();
title->setContentSize(CCSizeMake(0,0));
CCSprite* ptmLabel = CCSprite::create("meowstar.png");
ptmLabel->setScale(0.5);
ptmLabel->setPosition(ccp(0,30));
title->addChild(ptmLabel);
CCSprite *ptbLabel = CCSprite::create("battle.png");
ptbLabel->setScale(0.5);
ptbLabel->setPosition( ccp(0,-30) );
title->addChild(ptbLabel);
title->setPosition(ccp(size.width / 2, size.height - 80));
this->addChild(title,2,2);
初始化主菜单页面中的菜单项及单击事件，并设置为不可见
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CCMenuItemImage *newGameItem = CCMenuItemImage::create("newgameA.png", "newgameB.png",this,menu_selector(GameMenuScene::menuNewGameCallback));//newgame菜单项
newGameItem->setScale(0.5);
newGameItem->setPosition(ccp(size.width / 2,size.height / 2 - 20));
newGameItem->setEnabled(false);
CCMenuItemImage *continueItem = CCMenuItemImage::create("continueA.png", "continueB.png",this,menu_selector(GameMenuScene::menuContinueCallback));//continue菜单项
continueItem->setScale(0.5);
continueItem->setPosition(ccp(size.width / 2,size.height / 2 - 80));
continueItem->setEnabled(false);
CCMenuItemImage *aboutItem = CCMenuItemImage::create("aboutA.png", "aboutB.png",this,menu_selector(GameMenuScene::menuAboutCallback));//aboutA菜单项
aboutItem->setScale(0.5);
aboutItem->setPosition(ccp(size.width / 2,size.height / 2 - 140));
aboutItem->setEnabled(false);
m_soundItem = CCMenuItemImage::create("sound-on-A.png", "sound-on-B.png",this,menu_selector(GameMenuScene::menuSoundCallback));//设置声音菜单项
m_soundItem->setScale(0.5);
m_soundItem->setEnabled(false);
m_soundItem->setPosition(ccp(40,40));
CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
this,
menu_selector(GameMenuScene::menuCloseCallback));
pCloseItem->setPosition(ccp(size.width - 20, 20));
//使用按钮创建菜单
CCMenu* mainmenu = CCMenu::create(newGameItem,continueItem,aboutItem,m_soundItem,pCloseItem,NULL);
mainmenu->setPosition(ccp(0,0));
this->addChild(mainmenu,1,3);
初始化背景音乐
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m_isSound = true;//是否开启声音标识
CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic( CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str() );
CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);
CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str(), true);
进入主菜单页面有动画效果
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void GameMenuScene::onEnter()
{
CCLayer::onEnter();
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCNode* mainmenu = this->getChildByTag(3);//主菜单
mainmenu->setPositionX(-200);
mainmenu->runAction(CCSequence::create(CCEaseElasticOut::create(CCMoveTo::create(1,ccp(0,0))),CCCallFuncN::create(this, callfuncN_selector(GameMenuScene::menuEnter)),NULL));//终点有弹力
CCNode* title = this->getChildByTag(2);//标题
title->setPositionY(size.height + 20);
title->runAction(CCEaseElasticOut::create(CCMoveBy::create(1,ccp(0,-100))));
CCNode* bgstar = this->getChildByTag(1);//星球
bgstar->setPositionX(size.width/3);
bgstar->runAction(CCMoveBy::create(0.5,ccp(size.width/3,0)));
}
void GameMenuScene::menuEnter( CCNode* pSender )
{
//菜单项可见
CCNode* mainmenu = this->getChildByTag(3);
CCArray* temp = mainmenu->getChildren();
for(unsigned int i = 0;i < temp->count();i ++)
{
((CCMenuItemImage *)temp->objectAtIndex(i))->setEnabled(true);
}
}
点击NEW GAME、Contunue菜单按键切换GameMainScene场景进入游戏主页面
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void GameMenuScene::menuNewGameCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMainScene::scene());
}
void GameMenuScene::menuContinueCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMainScene::scene());
}
点击About 菜单按键切换GameAboutScene场景进入关于页面
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void GameMenuScene::menuAboutCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameAboutScene::scene());
}
点击声音菜单按键，变换按键图标，设置声音开关
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void GameMenuScene::menuSoundCallback( CCObject* pSender )
{
if(!m_isSound)//声音开
{
m_soundItem->setNormalImage(CCSprite::create("sound-on-A.png"));
m_soundItem->setDisabledImage(CCSprite::create("sound-on-B.png"));
CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str(), true);
m_isSound = true;
}
else//声音关
{
m_soundItem->setNormalImage(CCSprite::create("sound-off-A.png"));
m_soundItem->setDisabledImage(CCSprite::create("sound-off-B.png"));
CocosDenshion::SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();
m_isSound = false;
}
}
关于页面
代码：
初始化关于页面
背景
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CCSprite* bg = CCSprite::create("bg.png");
bg->setScale(0.5);
bg->setPosition( ccp(size.width/2, size.height/2) );
this->addChild(bg, 0,0);
星球
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CCSprite*bgstar = CCSprite::create("moon.png");
bgstar->setAnchorPoint(ccp(0.5,0));
bgstar->setScale(0.5);
bgstar->setPosition(ccp(size.width/3 * 1, 0));
this->addChild(bgstar,1,1);
关于页面的信息
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CCSprite*kuang = CCSprite::create("tb.png");
kuang->setScale(0.5);
kuang->setPosition(ccp(size.width/2, size.height/2));
this->addChild(kuang,2,2);
char inf[256];
sprintf(inf,"游戏名称:喵星战争\n\n作者：\n\n公司:\n\n使用工具:cocos2D-x");
CCLabelTTF * myjineng = CCLabelTTF::create(inf,"Marker Felt",40,CCSizeMake(400,400),kCCTextAlignmentLeft);
myjineng->setAnchorPoint(ccp(0,1));
myjineng->setColor(ccc3(255,200,0));
myjineng->setPosition(ccp(50,600));
kuang->addChild(myjineng);//将标签加入关于框
返回菜单按键，并注册点击事件
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CCMenuItemImage *back = CCMenuItemImage::create("backA.png", "backB.png",this,menu_selector(GameAboutScene::menuBackCallback));
back->setScale(0.5);
back->setPosition(ccp(size.width - 20,size.height - 20));
back->setEnabled(false);
CCMenu* mainmenu = CCMenu::create(back,NULL);
mainmenu->setPosition(ccp(0,0));
this->addChild(mainmenu,3,4);
返回键点击返回到主菜单页面
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void GameAboutScene::menuBackCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMenuScene::scene());
}
进入关于页面时的动画
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void GameAboutScene::onEnter()
{
CCLayer::onEnter();
//菜单进入后，菜单项点击有效
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCNode* mainmenu = this->getChildByTag(4);//返回键
mainmenu->setPositionX(-100);
mainmenu->runAction(CCSequence::create(CCEaseElasticOut::create(CCMoveBy::create(0.5,ccp(100,0))),CCCallFuncN::create(this, callfuncN_selector(GameAboutScene::menuEnter)),NULL));//终点弹力效果
//
CCNode* title = this->getChildByTag(3);//关于页面标题
title->setPositionY(size.height+20);
title->runAction(CCEaseElasticOut::create(CCMoveBy::create(0.5,ccp(0,-40))));
CCNode*bgstar = this->getChildByTag(1);
bgstar->setPositionX(size.width/3 * 2);
bgstar->runAction(CCMoveBy::create(0.5,ccp(-size.width/3,0)));
CCNode*kuang = this->getChildByTag(2);//关于框
kuang->setPositionX(-200);
kuang->runAction(CCEaseElasticOut::create(CCMoveTo::create(0.5,ccp(size.width/2,size.height/2))));
}
进入主页面
代码：
初始化游戏主页面
背景，创建2个图拼接一起
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m_bg1 = CCSprite::create("bg.png");
m_bg1->setScale(0.5);
m_bg2 = CCSprite::create("bg.png");
m_bg2->setScale(0.5);
m_bg1->setAnchorPoint(ccp(0,0));//设置锚点
m_bg2->setAnchorPoint(ccp(0,0));
m_bg1->setPosition( ccp(0,0) );
m_bg2->setPosition( ccp(0,size.height) );
this->addChild(m_bg1, 0);
this->addChild(m_bg2, 0);
创建主角及出场动画
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m_hero = new GameObjHero();
m_hero->setPosition(ccp(size.width/2,-50));
m_hero->setScale(0.5);
this->addChild(m_hero,2,1);
m_hero->runAction(CCMoveBy::create(0.5,ccp(0,150)));
创建3个敌人，每个敌人有移动动作
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m_enemys = CCArray::createWithCapacity(3);
for(int i = 0;i < 3;i ++)
{
int type = i + 1;
GameObjEnemy* enemy = new GameObjEnemy();
enemy->setPosition(ccp(size.width/4 * type,size.height + 50));
enemy->setScale(0.5);
enemy->setType(type);
m_enemys->addObject(enemy);
this->addChild(enemy,1);
enemy->moveStart();
}
初始主角生命数及生命图标
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m_blood = 3;
CCSpriteBatchNode* ui = CCSpriteBatchNode::create("cat.png");
//CCNode *ui = CCNode::create();
m_blood1 = CCSprite::createWithTexture(ui->getTexture());
m_blood1->setPosition(ccp(20,size.height - 20));
m_blood1->setScale(0.2f);
ui->addChild(m_blood1);
m_blood2 = CCSprite::createWithTexture(ui->getTexture());
m_blood2->setPosition(ccp(50,size.height - 20));
m_blood2->setScale(0.2f);
ui->addChild(m_blood2);
m_blood3 = CCSprite::createWithTexture(ui->getTexture());
m_blood3->setPosition(ccp(80,size.height - 20));
m_blood3->setScale(0.2f);
ui->addChild(m_blood3);
addChild(ui,4);
初始化主角子弹
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m_heroBullets = CCArray::createWithCapacity(5);
for(size_t i = 0;i < m_heroBullets->capacity();i ++)
{
GameHeroBullet * mybullet = new GameHeroBullet();
mybullet->setIsNotVisable(this);
mybullet->setScale(0.5);
m_heroBullets->addObject(mybullet);
this->addChild(mybullet,3);
}
m_heroBullets->retain();//计数器+1
初始化敌人子弹
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m_enemyBullets = CCArray::createWithCapacity(10);
for(size_t i = 0;i < m_enemyBullets->capacity();i ++)
{
GameEnemyBullet * mybullet = new GameEnemyBullet();
mybullet->setIsNotVisable(this);//若是没加object参数，会发生运行时调用约定错误，原因未知
mybullet->setScale(0.5);
m_enemyBullets->addObject(mybullet);
this->addChild(mybullet,3);
}
m_enemyBullets->retain();
游戏分数
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m_gameMark = new GameMark();
this->addChild(m_gameMark,4);
初始化游戏结束语gameover
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m_gameOver = CCSprite::create("gameover.png");
m_gameOver->setAnchorPoint(ccp(0.5,0.5));
m_gameOver->setPosition(ccp(0,0));
m_gameOver->setPosition(ccp(size.width/2,size.height/2 + 70));
m_gameOver->setVisible(false);
m_gameOver->setScale(0.5);
this->addChild(m_gameOver,5);
游戏结束上一步菜单按键
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CCMenuItemImage *pCloseItem = CCMenuItemImage::create("back.png","back.png",
this,menu_selector(GameMainScene::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);
m_isReduce = false;
m_isGameOver = false;
scheduleUpdate();
主角及主角子弹
代码：
主角接收触摸
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CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
主角身体动画
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CCAnimation* animation = CCAnimation::create();
animation->addSpriteFrameWithFileName("catBody1.png");
animation->addSpriteFrameWithFileName("catBody2-4.png");
animation->addSpriteFrameWithFileName("catBody3.png");
animation->addSpriteFrameWithFileName("catBody2-4.png");
animation->setDelayPerUnit(0.1f);
animation->setRestoreOriginalFrame(true);
mainsprite->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
this->addChild(mainsprite);
主角尾巴摇摆动画
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CCSprite *tail = CCSprite::create("catTail.png");
tail->setAnchorPoint(ccp(0.5,1));
tail->setPosition(ccp(-5,-29));
tail->setScale(0.5);
tail->setRotation(20);
tail->runAction(CCRepeatForever::create((CCActionInterval*)CCSequence::create(CCRotateBy::create(0.5,-40),CCRotateBy::create(0.5,40),NULL)));
this->addChild(tail);
主角手动画
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m_leftHand = CCSprite::create("catHand1.png");
m_leftHand->setAnchorPoint(ccp(1,0.5));
m_leftHand->setPosition(ccp(-18,-20));
this->addChild(m_leftHand);
m_rightHand = CCSprite::create("catHand2.png");
m_rightHand->setPosition(ccp(18,-20));
m_rightHand->setAnchorPoint(ccp(0,0.5));
this->addChild(m_rightHand);
m_offset = ccp(0,0);
m_isControl = false;
主角定时发射子弹
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schedule(schedule_selector(GameObjHero::releasebullet), 0.8f);
void GameObjHero::releasebullet( float dt )
{
if(m_isControl)//是否触摸了主角，触摸了则发射子弹
{
CCPoint pos = this->getPosition(); //获取主角坐标
GameMainScene *p = (GameMainScene*) this->getParent();//获取父场景调用releaseHeroBullet发射子弹
p->releaseHeroBullet(pos.x,pos.y + 30);
}
}
void GameMainScene::releaseHeroBullet( int x,int y )//参数主角坐标
{
for(size_t i = 0;i < m_heroBullets->capacity();i++)//遍历主角每个子弹
{
if(!((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getIsvisble())
{
//设置位置，并设置为显示
((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->setPosition(ccp(x,y));//子弹起始位置
((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->setIsVisable();//子弹移动动画
break;
}
}
}
void GameHeroBullet::setIsVisable()
{
this->setVisible(true);
m_isVisable = true;
int a = (-this->getPosition().y + 550)/150;
this->runAction(CCSequence::create(CCMoveTo::create((-this->getPosition().y + 550)/150,ccp(this->getPosition().x,550)),CCCallFuncN::create(this, callfuncN_selector(GameHeroBullet::setIsNotVisable)),NULL));;
}
void GameHeroBullet::setIsNotVisable(CCNode* pSender)
{
this->setVisible(false);
m_isVisable = false;
this->stopAllActions();
}
ccTouchBegan中判断是否点中主角
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if(! containsTouchLocation(touch))//没选中主角
{
return false;
}
else//选中了
{
m_isControl = true;//发射子弹
//获取触摸偏移
CCPoint touchPoint = touch->getLocationInView();
touchPoint = CCDirector::sharedDirector()->convertToGL(touchPoint);
m_offset.x = touchPoint.x - this->getPosition().x;
m_offset.y = touchPoint.y - this->getPosition().y;
}
//选中的点是否在精灵矩形范围内
bool GameObjHero::containsTouchLocation(CCTouch* touch)
{
return rect().containsPoint(convertTouchToNodeSpaceAR(touch));//
}
CCRect GameObjHero::rect()
{
CCSize s = CCSizeMake(85,90);
CCPoint p = ccp(-s.width / 2, -s.height / 2);
return CCRectMake(-s.width / 2, -s.height / 2, s.width, s.height);
}
敌人及敌人子弹
代码：
创建敌人
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this->setContentSize(CCSizeMake(99,115));
m_mainBody = CCSprite::create("DrDog1.png");
//敌人自身动画
CCAnimation* animation = CCAnimation::create();
animation->addSpriteFrameWithFileName("DrDog1.png");
animation->addSpriteFrameWithFileName("DrDog2.png");
animation->setDelayPerUnit(0.1f);
animation->setRestoreOriginalFrame(true);
m_mainBody->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
this->addChild(m_mainBody);
//初始化爆炸，不可见
m_boom = CCSprite::create("boom1.png");
this->addChild(m_boom);
m_boom->setVisible(false);
m_isLife = true;
敌人移动动画
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int type = CCRANDOM_0_1() * 4;//4种随机移动
//敌人运动轨迹（贝尔曲线）
ccBezierConfig bezier2;
bezier2.controlPoint_1 = CCPointMake(this->getPosition().x - 400,330);
bezier2.controlPoint_2 = CCPointMake(this->getPosition().x + 400,280);
bezier2.endPosition = CCPointMake(this->getPosition().x,-70);
CCBezierTo * bezierBy2 = CCBezierTo::create(6, bezier2);
ccBezierConfig bezier1;
bezier1.controlPoint_1 = CCPointMake(this->getPosition().x + 400,330);
bezier1.controlPoint_2 = CCPointMake(this->getPosition().x - 400,280);
bezier1.endPosition = CCPointMake(this->getPosition().x,-70);
CCBezierTo * bezierBy1 = CCBezierTo::create(6, bezier1);
switch(type)
{
case 0:
case 1:
this->runAction(CCSequence::create(CCMoveBy::create(6,ccp(0,-600)),CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
case 2:
this->runAction(CCSequence::create(bezierBy2,CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
case 3:
this->runAction(CCSequence::create(bezierBy1,CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
}
schedule(schedule_selector(GameObjEnemy::releaseBullet), 1.2f);
当第一波敌人过屏以后，重新设置一波敌人初始位置及移动的动画, 这样敌人就无限循环出现
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void GameObjEnemy::reStart( CCNode* pSender )
{
m_mainBody->setVisible(true);
m_boom->setVisible(false);
CCSize size = CCDirector::sharedDirector()->getWinSize();
this->setPosition(ccp(size.width/4 * m_type,size.height + 50));
m_isLife = true;
this->moveStart();
}
每个敌人发射子弹
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void GameObjEnemy::releaseBullet( float dt )
{
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCPoint pos = this->getPosition();//敌人位置
if(pos.y > 20 && pos.y < size.height && m_isLife)//敌人出在屏幕上才能发
{
GameMainScene *p = (GameMainScene *) this->getParent();
p->releaseEnemyBullet(pos.x,pos.y - 30);//发射子弹
}
}
void GameMainScene::releaseEnemyBullet( int x,int y )
{
for(unsigned int i = 0; i<m_enemyBullets->capacity(); i++)//每个敌人的子弹10发
{
if(!((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->getIsvisble())
{
((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->setPosition(ccp(x,y));
((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->setIsVisable();//子弹动画
break;
}
}
}
void GameEnemyBullet::setIsVisable()
{
this->setVisible(true);
m_isVisable = true;
this->runAction(CCRepeatForever::create(CCRotateBy::create(1,360)));
this->runAction(CCSequence::create(CCMoveTo::create((this->getPosition().y + 50)/150,ccp(this->getPosition().x,-50)),CCCallFuncN::create(this, callfuncN_selector(GameEnemyBullet::setIsNotVisable)),NULL));;
}
void GameEnemyBullet::setIsNotVisable(CCNode* pSender)
{
this->setVisible(false);
m_isVisable = false;
this->stopAllActions();
}
游戏主页面update定时器进行游戏背景动画处理和主角与敌人攻击碰撞检测
游戏背景动画至上往下移动，当第1张图滑过底部时，第2张图连接上，每次移动2
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游戏背景动画至上往下移动，当第1张图滑过底部时，第2张图连接上，每次移动2
m_bg1->setPosition(ccp(m_bg1->getPosition().x,m_bg1->getPosition().y - 2));
m_bg2->setPosition(ccp(m_bg2->getPosition().x,m_bg2->getPosition().y - 2));
if(m_bg2->getPosition().y <= 0)
{
float temp = m_bg2->getPosition().y + 480;
m_bg1->setPosition(ccp(m_bg2->getPosition().x,temp));
}
if(m_bg1->getPosition().y <= 0)
{
float temp = m_bg1->getPosition().y + 480;
m_bg2->setPosition(ccp(m_bg1->getPosition().x,temp));
}
三种碰撞检测
敌人和主角、主角子弹碰撞检测
[cpp] view
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CCPoint hpos = m_hero->getPosition();//主角坐标
for(size_t i = 0;i < m_enemys->capacity();i ++)//遍历敌人
{
GameObjEnemy * enemy = ((GameObjEnemy *) m_enemys->objectAtIndex(i));//单个敌人
CCPoint epos = enemy->getPosition();
if(enemy->m_isLife)//子弹击中敌人
{
for(size_t i = 0;i < m_heroBullets->capacity();i ++)//主角子弹
{
if(((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getIsvisble())
{
if(isHit(((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getPosition(),epos,5,13,21,28))//主角子弹打中敌人碰撞检测
{
enemy->setDie();//敌人消失，有爆炸动画
m_gameMark->addNumber(200);//加分
break;
}
}
}
}
//敌人和主角碰撞
if(!m_isReduce && enemy->m_isLife && isHit(hpos,epos,21,22.5,21,28))
{
enemy->setDie();
setHeroHurt();//主角掉命
}
}
主角被敌人子弹打中碰撞检测
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if(!m_isReduce)
{
for(size_t i = 0;i < m_enemyBullets->capacity();i ++)//敌人的子弹10发
{
if(isHit(hpos,((GameEnemyBullet *)m_enemyBullets->objectAtIndex(i))->getPosition(),21,22.5,5,13))
{
setHeroHurt();//主角掉命
}
}
}
判断两个矩形是否碰撞
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bool GameMainScene::isHit( 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;
}
主角掉命
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void GameMainScene::setHeroHurt()
{
m_hero->stopAllActions();
switch(m_blood)//初始3
{
case 3:
m_blood1->setVisible(false);//命图标不可见
m_blood --;
break;
case 2:
m_blood2->setVisible(false);
m_blood --;
break;
case 1:
m_blood3->setVisible(false);
m_blood --;
break;
case 0:
if(! m_isGameOver)
{
m_isGameOver = true;
setGameOver();//3条命用完，游戏结束
}
break;
}
CCActionInterval* action = CCBlink::create(5, 10);//3秒内闪烁6次
m_hero->runAction(action);
scheduleOnce(schedule_selector(GameMainScene::resetReduce), 5.0f);//5秒后执行一次
m_isReduce = true;//5秒不受伤害
}
void GameMainScene::resetReduce( float dt )
{
m_isReduce = false;//重新能收到伤害
}
敌人消失后爆炸
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void GameObjEnemy::setDie()
{
//敌人消失
m_isLife = false;
m_mainBody->setVisible(false);
m_boom->setVisible(true);
this->stopAllActions();
//爆炸动画
CCAnimation* boomAnimation = CCAnimation::create();
boomAnimation->addSpriteFrameWithFileName("boom1.png");
boomAnimation->addSpriteFrameWithFileName("boom2.png");
boomAnimation->addSpriteFrameWithFileName("boom3.png");
boomAnimation->addSpriteFrameWithFileName("boom4.png");
boomAnimation->addSpriteFrameWithFileName("boom5.png");
boomAnimation->setDelayPerUnit(0.1f);
boomAnimation->setRestoreOriginalFrame(true);
m_boom->runAction(CCSequence::create(CCAnimate::create(boomAnimation),CCCallFuncN::create(this,
callfuncN_selector(GameObjEnemy::reStart)),NULL));
}
ccp文件介绍：
GameMenuScene.cpp游戏主菜单
GameMainScene.cpp游戏主页面
GameObjHero.cpp主角
GameHeroBullet.cpp主角的子弹
GameObjEnemy.cpp敌人
GameEnemyBullet.cpp敌人的子弹
GameAboutScene.cpp关于页面
GameMark.cpp游戏分数
运行游戏进入游戏主菜单页面
代码：
GameMenuScene类init()函数，初始化主菜单页面背景图
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CCSprite* back = CCSprite::create("bg.png");
back->setScale(0.5);
back->setPosition(ccp(size.width/2,size.height/2));
this->addChild(back,0,0);
初始化主菜单页面背景星球图片
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CCSprite* bgstar = CCSprite::create("moon.png");
bgstar->setAnchorPoint(ccp(0.5,0));
bgstar->setScale(0.5);
bgstar->setPosition(ccp(size.width/3 * 2, 0));
this->addChild(bgstar,1,1);
初始化主菜单页面标题名称meowstar、battle
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CCNode* title = CCNode::create();
title->setContentSize(CCSizeMake(0,0));
CCSprite* ptmLabel = CCSprite::create("meowstar.png");
ptmLabel->setScale(0.5);
ptmLabel->setPosition(ccp(0,30));
title->addChild(ptmLabel);
CCSprite *ptbLabel = CCSprite::create("battle.png");
ptbLabel->setScale(0.5);
ptbLabel->setPosition( ccp(0,-30) );
title->addChild(ptbLabel);
title->setPosition(ccp(size.width / 2, size.height - 80));
this->addChild(title,2,2);
初始化主菜单页面中的菜单项及单击事件，并设置为不可见
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CCMenuItemImage *newGameItem = CCMenuItemImage::create("newgameA.png", "newgameB.png",this,menu_selector(GameMenuScene::menuNewGameCallback));//newgame菜单项
newGameItem->setScale(0.5);
newGameItem->setPosition(ccp(size.width / 2,size.height / 2 - 20));
newGameItem->setEnabled(false);
CCMenuItemImage *continueItem = CCMenuItemImage::create("continueA.png", "continueB.png",this,menu_selector(GameMenuScene::menuContinueCallback));//continue菜单项
continueItem->setScale(0.5);
continueItem->setPosition(ccp(size.width / 2,size.height / 2 - 80));
continueItem->setEnabled(false);
CCMenuItemImage *aboutItem = CCMenuItemImage::create("aboutA.png", "aboutB.png",this,menu_selector(GameMenuScene::menuAboutCallback));//aboutA菜单项
aboutItem->setScale(0.5);
aboutItem->setPosition(ccp(size.width / 2,size.height / 2 - 140));
aboutItem->setEnabled(false);
m_soundItem = CCMenuItemImage::create("sound-on-A.png", "sound-on-B.png",this,menu_selector(GameMenuScene::menuSoundCallback));//设置声音菜单项
m_soundItem->setScale(0.5);
m_soundItem->setEnabled(false);
m_soundItem->setPosition(ccp(40,40));
CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
this,
menu_selector(GameMenuScene::menuCloseCallback));
pCloseItem->setPosition(ccp(size.width - 20, 20));
//使用按钮创建菜单
CCMenu* mainmenu = CCMenu::create(newGameItem,continueItem,aboutItem,m_soundItem,pCloseItem,NULL);
mainmenu->setPosition(ccp(0,0));
this->addChild(mainmenu,1,3);
初始化背景音乐
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m_isSound = true;//是否开启声音标识
CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic( CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str() );
CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);
CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str(), true);
进入主菜单页面有动画效果
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void GameMenuScene::onEnter()
{
CCLayer::onEnter();
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCNode* mainmenu = this->getChildByTag(3);//主菜单
mainmenu->setPositionX(-200);
mainmenu->runAction(CCSequence::create(CCEaseElasticOut::create(CCMoveTo::create(1,ccp(0,0))),CCCallFuncN::create(this, callfuncN_selector(GameMenuScene::menuEnter)),NULL));//终点有弹力
CCNode* title = this->getChildByTag(2);//标题
title->setPositionY(size.height + 20);
title->runAction(CCEaseElasticOut::create(CCMoveBy::create(1,ccp(0,-100))));
CCNode* bgstar = this->getChildByTag(1);//星球
bgstar->setPositionX(size.width/3);
bgstar->runAction(CCMoveBy::create(0.5,ccp(size.width/3,0)));
}
void GameMenuScene::menuEnter( CCNode* pSender )
{
//菜单项可见
CCNode* mainmenu = this->getChildByTag(3);
CCArray* temp = mainmenu->getChildren();
for(unsigned int i = 0;i < temp->count();i ++)
{
((CCMenuItemImage *)temp->objectAtIndex(i))->setEnabled(true);
}
}
点击NEW GAME、Contunue菜单按键切换GameMainScene场景进入游戏主页面
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void GameMenuScene::menuNewGameCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMainScene::scene());
}
void GameMenuScene::menuContinueCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMainScene::scene());
}
点击About 菜单按键切换GameAboutScene场景进入关于页面
[cpp] view
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void GameMenuScene::menuAboutCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameAboutScene::scene());
}
点击声音菜单按键，变换按键图标，设置声音开关
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void GameMenuScene::menuSoundCallback( CCObject* pSender )
{
if(!m_isSound)//声音开
{
m_soundItem->setNormalImage(CCSprite::create("sound-on-A.png"));
m_soundItem->setDisabledImage(CCSprite::create("sound-on-B.png"));
CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(CCFileUtils::sharedFileUtils()->fullPathForFilename("background.mp3").c_str(), true);
m_isSound = true;
}
else//声音关
{
m_soundItem->setNormalImage(CCSprite::create("sound-off-A.png"));
m_soundItem->setDisabledImage(CCSprite::create("sound-off-B.png"));
CocosDenshion::SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();
m_isSound = false;
}
}
关于页面
代码：
初始化关于页面
背景
[cpp] view
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CCSprite* bg = CCSprite::create("bg.png");
bg->setScale(0.5);
bg->setPosition( ccp(size.width/2, size.height/2) );
this->addChild(bg, 0,0);
星球
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CCSprite*bgstar = CCSprite::create("moon.png");
bgstar->setAnchorPoint(ccp(0.5,0));
bgstar->setScale(0.5);
bgstar->setPosition(ccp(size.width/3 * 1, 0));
this->addChild(bgstar,1,1);
关于页面的信息
[cpp] view
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CCSprite*kuang = CCSprite::create("tb.png");
kuang->setScale(0.5);
kuang->setPosition(ccp(size.width/2, size.height/2));
this->addChild(kuang,2,2);
char inf[256];
sprintf(inf,"游戏名称:喵星战争\n\n作者：\n\n公司:\n\n使用工具:cocos2D-x");
CCLabelTTF * myjineng = CCLabelTTF::create(inf,"Marker Felt",40,CCSizeMake(400,400),kCCTextAlignmentLeft);
myjineng->setAnchorPoint(ccp(0,1));
myjineng->setColor(ccc3(255,200,0));
myjineng->setPosition(ccp(50,600));
kuang->addChild(myjineng);//将标签加入关于框
返回菜单按键，并注册点击事件
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CCMenuItemImage *back = CCMenuItemImage::create("backA.png", "backB.png",this,menu_selector(GameAboutScene::menuBackCallback));
back->setScale(0.5);
back->setPosition(ccp(size.width - 20,size.height - 20));
back->setEnabled(false);
CCMenu* mainmenu = CCMenu::create(back,NULL);
mainmenu->setPosition(ccp(0,0));
this->addChild(mainmenu,3,4);
返回键点击返回到主菜单页面
[cpp] view
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void GameAboutScene::menuBackCallback( CCObject* pSender )
{
CCDirector::sharedDirector()->replaceScene(GameMenuScene::scene());
}
进入关于页面时的动画
[cpp] view
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void GameAboutScene::onEnter()
{
CCLayer::onEnter();
//菜单进入后，菜单项点击有效
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCNode* mainmenu = this->getChildByTag(4);//返回键
mainmenu->setPositionX(-100);
mainmenu->runAction(CCSequence::create(CCEaseElasticOut::create(CCMoveBy::create(0.5,ccp(100,0))),CCCallFuncN::create(this, callfuncN_selector(GameAboutScene::menuEnter)),NULL));//终点弹力效果
//
CCNode* title = this->getChildByTag(3);//关于页面标题
title->setPositionY(size.height+20);
title->runAction(CCEaseElasticOut::create(CCMoveBy::create(0.5,ccp(0,-40))));
CCNode*bgstar = this->getChildByTag(1);
bgstar->setPositionX(size.width/3 * 2);
bgstar->runAction(CCMoveBy::create(0.5,ccp(-size.width/3,0)));
CCNode*kuang = this->getChildByTag(2);//关于框
kuang->setPositionX(-200);
kuang->runAction(CCEaseElasticOut::create(CCMoveTo::create(0.5,ccp(size.width/2,size.height/2))));
}
进入主页面
代码：
初始化游戏主页面
背景，创建2个图拼接一起
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m_bg1 = CCSprite::create("bg.png");
m_bg1->setScale(0.5);
m_bg2 = CCSprite::create("bg.png");
m_bg2->setScale(0.5);
m_bg1->setAnchorPoint(ccp(0,0));//设置锚点
m_bg2->setAnchorPoint(ccp(0,0));
m_bg1->setPosition( ccp(0,0) );
m_bg2->setPosition( ccp(0,size.height) );
this->addChild(m_bg1, 0);
this->addChild(m_bg2, 0);
创建主角及出场动画
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m_hero = new GameObjHero();
m_hero->setPosition(ccp(size.width/2,-50));
m_hero->setScale(0.5);
this->addChild(m_hero,2,1);
m_hero->runAction(CCMoveBy::create(0.5,ccp(0,150)));
创建3个敌人，每个敌人有移动动作
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m_enemys = CCArray::createWithCapacity(3);
for(int i = 0;i < 3;i ++)
{
int type = i + 1;
GameObjEnemy* enemy = new GameObjEnemy();
enemy->setPosition(ccp(size.width/4 * type,size.height + 50));
enemy->setScale(0.5);
enemy->setType(type);
m_enemys->addObject(enemy);
this->addChild(enemy,1);
enemy->moveStart();
}
初始主角生命数及生命图标
[cpp] view
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m_blood = 3;
CCSpriteBatchNode* ui = CCSpriteBatchNode::create("cat.png");
//CCNode *ui = CCNode::create();
m_blood1 = CCSprite::createWithTexture(ui->getTexture());
m_blood1->setPosition(ccp(20,size.height - 20));
m_blood1->setScale(0.2f);
ui->addChild(m_blood1);
m_blood2 = CCSprite::createWithTexture(ui->getTexture());
m_blood2->setPosition(ccp(50,size.height - 20));
m_blood2->setScale(0.2f);
ui->addChild(m_blood2);
m_blood3 = CCSprite::createWithTexture(ui->getTexture());
m_blood3->setPosition(ccp(80,size.height - 20));
m_blood3->setScale(0.2f);
ui->addChild(m_blood3);
addChild(ui,4);
初始化主角子弹
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m_heroBullets = CCArray::createWithCapacity(5);
for(size_t i = 0;i < m_heroBullets->capacity();i ++)
{
GameHeroBullet * mybullet = new GameHeroBullet();
mybullet->setIsNotVisable(this);
mybullet->setScale(0.5);
m_heroBullets->addObject(mybullet);
this->addChild(mybullet,3);
}
m_heroBullets->retain();//计数器+1
初始化敌人子弹
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m_enemyBullets = CCArray::createWithCapacity(10);
for(size_t i = 0;i < m_enemyBullets->capacity();i ++)
{
GameEnemyBullet * mybullet = new GameEnemyBullet();
mybullet->setIsNotVisable(this);//若是没加object参数，会发生运行时调用约定错误，原因未知
mybullet->setScale(0.5);
m_enemyBullets->addObject(mybullet);
this->addChild(mybullet,3);
}
m_enemyBullets->retain();
游戏分数
[cpp] view
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m_gameMark = new GameMark();
this->addChild(m_gameMark,4);
初始化游戏结束语gameover
[cpp] view
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m_gameOver = CCSprite::create("gameover.png");
m_gameOver->setAnchorPoint(ccp(0.5,0.5));
m_gameOver->setPosition(ccp(0,0));
m_gameOver->setPosition(ccp(size.width/2,size.height/2 + 70));
m_gameOver->setVisible(false);
m_gameOver->setScale(0.5);
this->addChild(m_gameOver,5);
游戏结束上一步菜单按键
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CCMenuItemImage *pCloseItem = CCMenuItemImage::create("back.png","back.png",
this,menu_selector(GameMainScene::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);
m_isReduce = false;
m_isGameOver = false;
scheduleUpdate();
主角及主角子弹
代码：
主角接收触摸
[cpp] view
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CCDirector* pDirector = CCDirector::sharedDirector();
pDirector->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
主角身体动画
[cpp] view
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CCAnimation* animation = CCAnimation::create();
animation->addSpriteFrameWithFileName("catBody1.png");
animation->addSpriteFrameWithFileName("catBody2-4.png");
animation->addSpriteFrameWithFileName("catBody3.png");
animation->addSpriteFrameWithFileName("catBody2-4.png");
animation->setDelayPerUnit(0.1f);
animation->setRestoreOriginalFrame(true);
mainsprite->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
this->addChild(mainsprite);
主角尾巴摇摆动画
[cpp] view
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CCSprite *tail = CCSprite::create("catTail.png");
tail->setAnchorPoint(ccp(0.5,1));
tail->setPosition(ccp(-5,-29));
tail->setScale(0.5);
tail->setRotation(20);
tail->runAction(CCRepeatForever::create((CCActionInterval*)CCSequence::create(CCRotateBy::create(0.5,-40),CCRotateBy::create(0.5,40),NULL)));
this->addChild(tail);
主角手动画
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m_leftHand = CCSprite::create("catHand1.png");
m_leftHand->setAnchorPoint(ccp(1,0.5));
m_leftHand->setPosition(ccp(-18,-20));
this->addChild(m_leftHand);
m_rightHand = CCSprite::create("catHand2.png");
m_rightHand->setPosition(ccp(18,-20));
m_rightHand->setAnchorPoint(ccp(0,0.5));
this->addChild(m_rightHand);
m_offset = ccp(0,0);
m_isControl = false;
主角定时发射子弹
[cpp] view
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schedule(schedule_selector(GameObjHero::releasebullet), 0.8f);
void GameObjHero::releasebullet( float dt )
{
if(m_isControl)//是否触摸了主角，触摸了则发射子弹
{
CCPoint pos = this->getPosition(); //获取主角坐标
GameMainScene *p = (GameMainScene*) this->getParent();//获取父场景调用releaseHeroBullet发射子弹
p->releaseHeroBullet(pos.x,pos.y + 30);
}
}
void GameMainScene::releaseHeroBullet( int x,int y )//参数主角坐标
{
for(size_t i = 0;i < m_heroBullets->capacity();i++)//遍历主角每个子弹
{
if(!((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getIsvisble())
{
//设置位置，并设置为显示
((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->setPosition(ccp(x,y));//子弹起始位置
((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->setIsVisable();//子弹移动动画
break;
}
}
}
void GameHeroBullet::setIsVisable()
{
this->setVisible(true);
m_isVisable = true;
int a = (-this->getPosition().y + 550)/150;
this->runAction(CCSequence::create(CCMoveTo::create((-this->getPosition().y + 550)/150,ccp(this->getPosition().x,550)),CCCallFuncN::create(this, callfuncN_selector(GameHeroBullet::setIsNotVisable)),NULL));;
}
void GameHeroBullet::setIsNotVisable(CCNode* pSender)
{
this->setVisible(false);
m_isVisable = false;
this->stopAllActions();
}
ccTouchBegan中判断是否点中主角
[cpp] view
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if(! containsTouchLocation(touch))//没选中主角
{
return false;
}
else//选中了
{
m_isControl = true;//发射子弹
//获取触摸偏移
CCPoint touchPoint = touch->getLocationInView();
touchPoint = CCDirector::sharedDirector()->convertToGL(touchPoint);
m_offset.x = touchPoint.x - this->getPosition().x;
m_offset.y = touchPoint.y - this->getPosition().y;
}
//选中的点是否在精灵矩形范围内
bool GameObjHero::containsTouchLocation(CCTouch* touch)
{
return rect().containsPoint(convertTouchToNodeSpaceAR(touch));//
}
CCRect GameObjHero::rect()
{
CCSize s = CCSizeMake(85,90);
CCPoint p = ccp(-s.width / 2, -s.height / 2);
return CCRectMake(-s.width / 2, -s.height / 2, s.width, s.height);
}
敌人及敌人子弹
代码：
创建敌人
[cpp] view
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this->setContentSize(CCSizeMake(99,115));
m_mainBody = CCSprite::create("DrDog1.png");
//敌人自身动画
CCAnimation* animation = CCAnimation::create();
animation->addSpriteFrameWithFileName("DrDog1.png");
animation->addSpriteFrameWithFileName("DrDog2.png");
animation->setDelayPerUnit(0.1f);
animation->setRestoreOriginalFrame(true);
m_mainBody->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
this->addChild(m_mainBody);
//初始化爆炸，不可见
m_boom = CCSprite::create("boom1.png");
this->addChild(m_boom);
m_boom->setVisible(false);
m_isLife = true;
敌人移动动画
[cpp] view
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int type = CCRANDOM_0_1() * 4;//4种随机移动
//敌人运动轨迹（贝尔曲线）
ccBezierConfig bezier2;
bezier2.controlPoint_1 = CCPointMake(this->getPosition().x - 400,330);
bezier2.controlPoint_2 = CCPointMake(this->getPosition().x + 400,280);
bezier2.endPosition = CCPointMake(this->getPosition().x,-70);
CCBezierTo * bezierBy2 = CCBezierTo::create(6, bezier2);
ccBezierConfig bezier1;
bezier1.controlPoint_1 = CCPointMake(this->getPosition().x + 400,330);
bezier1.controlPoint_2 = CCPointMake(this->getPosition().x - 400,280);
bezier1.endPosition = CCPointMake(this->getPosition().x,-70);
CCBezierTo * bezierBy1 = CCBezierTo::create(6, bezier1);
switch(type)
{
case 0:
case 1:
this->runAction(CCSequence::create(CCMoveBy::create(6,ccp(0,-600)),CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
case 2:
this->runAction(CCSequence::create(bezierBy2,CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
case 3:
this->runAction(CCSequence::create(bezierBy1,CCCallFuncN::create(this, callfuncN_selector(GameObjEnemy::reStart)),NULL));
break;
}
schedule(schedule_selector(GameObjEnemy::releaseBullet), 1.2f);
当第一波敌人过屏以后，重新设置一波敌人初始位置及移动的动画, 这样敌人就无限循环出现
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void GameObjEnemy::reStart( CCNode* pSender )
{
m_mainBody->setVisible(true);
m_boom->setVisible(false);
CCSize size = CCDirector::sharedDirector()->getWinSize();
this->setPosition(ccp(size.width/4 * m_type,size.height + 50));
m_isLife = true;
this->moveStart();
}
每个敌人发射子弹
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void GameObjEnemy::releaseBullet( float dt )
{
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCPoint pos = this->getPosition();//敌人位置
if(pos.y > 20 && pos.y < size.height && m_isLife)//敌人出在屏幕上才能发
{
GameMainScene *p = (GameMainScene *) this->getParent();
p->releaseEnemyBullet(pos.x,pos.y - 30);//发射子弹
}
}
void GameMainScene::releaseEnemyBullet( int x,int y )
{
for(unsigned int i = 0; i<m_enemyBullets->capacity(); i++)//每个敌人的子弹10发
{
if(!((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->getIsvisble())
{
((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->setPosition(ccp(x,y));
((GameEnemyBullet*)m_enemyBullets->objectAtIndex(i))->setIsVisable();//子弹动画
break;
}
}
}
void GameEnemyBullet::setIsVisable()
{
this->setVisible(true);
m_isVisable = true;
this->runAction(CCRepeatForever::create(CCRotateBy::create(1,360)));
this->runAction(CCSequence::create(CCMoveTo::create((this->getPosition().y + 50)/150,ccp(this->getPosition().x,-50)),CCCallFuncN::create(this, callfuncN_selector(GameEnemyBullet::setIsNotVisable)),NULL));;
}
void GameEnemyBullet::setIsNotVisable(CCNode* pSender)
{
this->setVisible(false);
m_isVisable = false;
this->stopAllActions();
}
游戏主页面update定时器进行游戏背景动画处理和主角与敌人攻击碰撞检测
游戏背景动画至上往下移动，当第1张图滑过底部时，第2张图连接上，每次移动2
[cpp] view
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游戏背景动画至上往下移动，当第1张图滑过底部时，第2张图连接上，每次移动2
m_bg1->setPosition(ccp(m_bg1->getPosition().x,m_bg1->getPosition().y - 2));
m_bg2->setPosition(ccp(m_bg2->getPosition().x,m_bg2->getPosition().y - 2));
if(m_bg2->getPosition().y <= 0)
{
float temp = m_bg2->getPosition().y + 480;
m_bg1->setPosition(ccp(m_bg2->getPosition().x,temp));
}
if(m_bg1->getPosition().y <= 0)
{
float temp = m_bg1->getPosition().y + 480;
m_bg2->setPosition(ccp(m_bg1->getPosition().x,temp));
}
三种碰撞检测
敌人和主角、主角子弹碰撞检测
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CCPoint hpos = m_hero->getPosition();//主角坐标
for(size_t i = 0;i < m_enemys->capacity();i ++)//遍历敌人
{
GameObjEnemy * enemy = ((GameObjEnemy *) m_enemys->objectAtIndex(i));//单个敌人
CCPoint epos = enemy->getPosition();
if(enemy->m_isLife)//子弹击中敌人
{
for(size_t i = 0;i < m_heroBullets->capacity();i ++)//主角子弹
{
if(((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getIsvisble())
{
if(isHit(((GameHeroBullet *)m_heroBullets->objectAtIndex(i))->getPosition(),epos,5,13,21,28))//主角子弹打中敌人碰撞检测
{
enemy->setDie();//敌人消失，有爆炸动画
m_gameMark->addNumber(200);//加分
break;
}
}
}
}
//敌人和主角碰撞
if(!m_isReduce && enemy->m_isLife && isHit(hpos,epos,21,22.5,21,28))
{
enemy->setDie();
setHeroHurt();//主角掉命
}
}
主角被敌人子弹打中碰撞检测
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if(!m_isReduce)
{
for(size_t i = 0;i < m_enemyBullets->capacity();i ++)//敌人的子弹10发
{
if(isHit(hpos,((GameEnemyBullet *)m_enemyBullets->objectAtIndex(i))->getPosition(),21,22.5,5,13))
{
setHeroHurt();//主角掉命
}
}
}
判断两个矩形是否碰撞
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bool GameMainScene::isHit( 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;
}
主角掉命
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void GameMainScene::setHeroHurt()
{
m_hero->stopAllActions();
switch(m_blood)//初始3
{
case 3:
m_blood1->setVisible(false);//命图标不可见
m_blood --;
break;
case 2:
m_blood2->setVisible(false);
m_blood --;
break;
case 1:
m_blood3->setVisible(false);
m_blood --;
break;
case 0:
if(! m_isGameOver)
{
m_isGameOver = true;
setGameOver();//3条命用完，游戏结束
}
break;
}
CCActionInterval* action = CCBlink::create(5, 10);//3秒内闪烁6次
m_hero->runAction(action);
scheduleOnce(schedule_selector(GameMainScene::resetReduce), 5.0f);//5秒后执行一次
m_isReduce = true;//5秒不受伤害
}
void GameMainScene::resetReduce( float dt )
{
m_isReduce = false;//重新能收到伤害
}
敌人消失后爆炸
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void GameObjEnemy::setDie()
{
//敌人消失
m_isLife = false;
m_mainBody->setVisible(false);
m_boom->setVisible(true);
this->stopAllActions();
//爆炸动画
CCAnimation* boomAnimation = CCAnimation::create();
boomAnimation->addSpriteFrameWithFileName("boom1.png");
boomAnimation->addSpriteFrameWithFileName("boom2.png");
boomAnimation->addSpriteFrameWithFileName("boom3.png");
boomAnimation->addSpriteFrameWithFileName("boom4.png");
boomAnimation->addSpriteFrameWithFileName("boom5.png");
boomAnimation->setDelayPerUnit(0.1f);
boomAnimation->setRestoreOriginalFrame(true);
m_boom->runAction(CCSequence::create(CCAnimate::create(boomAnimation),CCCallFuncN::create(this,
callfuncN_selector(GameObjEnemy::reStart)),NULL));
}
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