Cocos2d API解析之RotateWorldTest-优快云博客

本文链接：https://blog.youkuaiyun.com/bo_xiaozhao/article/details/83645264

本文介绍如何使用Cocos2d-x实现旋转动画效果，通过创建不同颜色的ColorLayer并应用旋转动作，展示了基本的节点操作及动画设置。

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该函数演示的是：旋转功能

@implementation MainLayer
-(id) init
{
    if( ! [super init] )
        return nil;
    float x,y;
   
    CGSize size = [[Director sharedDirector] winSize];
    x = size.width;
    y = size.height;
   
   //ColorLayer是实现CocosNodeRGBA的子层，他除了有Layer的所有功能之外，

   //并且有以下特征：opacity（不透明） RGB颜色
    CocosNode* blue =  [ColorLayer layerWithColor:ccc4(0,0,255,255)];
    CocosNode* red =   [ColorLayer layerWithColor:ccc4(255,0,0,255)];
    CocosNode* green = [ColorLayer layerWithColor:ccc4(0,255,0,255)];
    CocosNode* white = [ColorLayer layerWithColor:ccc4(255,255,255,255)];

    [blue setScale: 0.5f];
    //注意：x= size.width,-x －y：表示在左下角
    [blue setPosition: ccp(-x/4,-y/4)];


    //增加SpriteLayer场在blue中
    [blue addChild: [SpriteLayer node]];
    //x -y(右下角)
    [red setScale: 0.5f];
    [red setPosition: ccp(x/4,-y/4)];
    //-x y(左上角)
    [green setScale: 0.5f];
    [green setPosition: ccp(-x/4,y/4)];
    [green addChild: [TextLayer node]];

    //x y(右上角)
    [white setScale: 0.5f];
    [white setPosition: ccp(x/4,y/4)];

    [self addChild: blue z:-1];
    [self addChild: white];
    [self addChild: green];
    [self addChild: red];
   //定义旋转方法：角度为：720  时间为8秒
    Action * rot = [RotateBy actionWithDuration:8 angle:720];
   
    [blue runAction: rot];
    [red runAction: [[rot copy] autorelease]];   //完成后自动release
    [green runAction: [[rot copy] autorelease]];
    [white runAction: [[rot copy] autorelease]];
   
    return self;
}