cocos-2d动作

一，CCActionManager管理所有节点动作的对象

来看看打飞机里面的一个onEnter方法

- (void)onEnter

{

    [super onEnter]; //一定要注意添加此方法，否则将停留在开始界面

    CGSize winSize = [[CCDirector sharedDirector] winSize];

    [CCMenuItemFont setFontSize:20];

    [CCMenuItemFont setFontName:@"Arial"];

     

    CCMenuItemFont *startItem = [CCMenuItemFont itemWithString:@"开始游戏" block:^(id sender)

                                 {

                                     _isGameStarted = YES;

                                     CCMenuItem *item = (CCMenuItemFont*)sender;

                                     item.visible = NO;

                                      

                                     //6.spawn enemy after 1.0 sec

                                     [self performSelector:@selector(spawnEnemy)

                                                withObject:nil

                                                afterDelay:1.0f];

                                      

                                     //7.enable accelerometer

                                     self.isAccelerometerEnabled = YES;

                                     //9.enable touch

                                     self.isTouchEnabled = YES;

                                 }];

    startItem.position = ccp(winSize.width / 2, -winSize.height / 2);

    _startGameMenu = [CCMenu menuWithItems:startItem, nil];

    _startGameMenu.position = CGPointZero;

    [self addChild:_startGameMenu];

     

     

    //7 基本动作   从原来的位置移动到新的位置

    id moveBy = [CCMoveBy actionWithDuration:1.0 position:ccp(0, winSize.height)];  //位置的移动

     

    [_startGameMenu runAction:moveBy]; //开始移动

    //8 和位置有关的基本动作

     

     

     

     

     

    //1 CCActionManager

    [[[CCDirector sharedDirector] actionManager ] pauseTarget:_startGameMenu];//暂停

     

    [self schedule:@selector(resumeStartMenuAction:) interval:1.0]; //等待十秒之后才能开始移动

     

    //2CCAction 抽象类，几乎所有的类都继承该类

     

    //3.CCFiniteTimeAction 该类为有限时间动作，包含CCActionInstant 瞬时动作 和CCActionInterval 区间动作,他们包含了很多不同的动作

    //4 CCRepaeatForever 无限重复的动作

     

    //5跟随节点的动作CCFollow .可以替代Camera

    //6 CCSpeed  更还节点动作的速度。

    // 7CCOrbitCamera 继承与CCActionCamera 。使用球坐标系围绕屏幕中心旋转摄像机的视角

     

     

     

     

 

}

 

- (void)resumeStartMenuAction:(ccTime)dt

{

    [self unschedule:_cmd];   //停止当前动作

    [[[CCDirector sharedDirector]actionManager] resumeTarget:_startGameMenu];

 

}

二，基本动作：和位置相关的基本动作

CGSize winSize = [[CCDirector sharedDirector] winSize];

         

        CCSprite *plane = [CCSprite spriteWithFile:@"hero_1.png"];

         

        plane.position = ccp(winSize.width/2, winSize.height/2);

         

        [self addChild:plane];

         

        //2 moveBy 让节点对象在一定时间内移动一定的像素值  ,这个是相对于原位置的

        [plane runAction:[CCMoveBy actionWithDuration:3 position:ccp(50, 0)]];

 

        //3 CCjumpTo

        [plane runAction:[CCJumpTo actionWithDuration:4 position:ccp(winSize.width, winSize.height) height:40 jumps:3]];

         

        //4CCJumpBy 相对于原位置的移动 ,相对于原位置的偏移量为  100，0

        [plane runAction:[CCJumpBy actionWithDuration:3 position:ccp(100, 0) height:100 jumps:4]];

         

        //5CCBezier TO

        ccBezierConfig c = {ccp(300, 100),ccp(50, 50),ccp(-50, -50)};

        //1.参数一 相对于原位置的偏移，2，3分别是贝塞尔曲线的两个控制点

        [plane runAction:[CCBezierTo actionWithDuration:3 bezier:c]];

         

         

         //6 CCplace 将对象直接放到指定的位置

        [plane runAction:[CCPlace actionWithPosition:ccp(10, 10)]];




三，和大小相关的基本动作

//二 和大小相关的基本动作
       // 1 CCScale TO、放大为原来的两倍
       [plane runAction:[CCScaleTo actionWithDuration:2 scale:2]];
       //2 CCScale By 缩小相应的倍数
       [plane runAction:[CCScaleBy actionWithDuration:3 scale:3]];
       [plane runAction:[CCScaleBy actionWithDuration:3 scaleX:0.5 scaleY:0.5]]; //对象的高度和宽度的缩小