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请原谅我的基本问题，因为我对 cocos2d 还很陌生，但是我在移动精灵时遇到了问题。该方法似乎可以满足我的要求……只要它沿正 x 和正 y 方向（右上角）移动。如果我尝试向下或向左移动它，它就不起作用。

-(void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *myTouch = [touches anyObject];
    CGPoint point = [myTouch locationInView:[myTouch view]];
    point = [[CCDirector sharedDirector] convertToGL:point]; //create point location
    CCNode *sprite = [self getChildByTag:kTagSprite]; //set sprite
    CGRect spriteRect = CGRectMake(sprite.position.x, sprite.position.y, sprite.contentSize.width, sprite.contentSize.height); //create box around sprite and get position
    if(CGRectContainsPoint(spriteRect, point)){
        [sprite setPosition:point];  //if my pointer is inside of the sprite box, move the sprite
    }
}

谢谢你。

编辑：添加我的初始化和标签参考

-(id) init{
    if((self = [super init])){
        self.isTouchEnabled = YES;
        CCSprite *mySprite = [CCSprite spriteWithFile:@"sprite.png"];
        mySprite.position = ccp(240, 40);
        [self addChild:mySprite z:0 tag:kTagSprite];
    }
    return self;
}

我在以下位置声明了 kTagSprite：

enum{
    kTagSprite
};
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1 回答 1

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-(void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *myTouch = [touches anyObject];
    CGPoint point = [myTouch locationInView:[myTouch view]];
    point = [[CCDirector sharedDirector] convertToGL:point]; //create point location
    CCSprite *sprite = [self getChildByTag:kTagSprite]; //set sprite

    if(CGRectContainsPoint([sprite boundingBox], point)){
        [sprite setPosition:point];  //if my pointer is inside of the sprite box, move the sprite      CCLOG(@"THIS WILL BE CALLED");
    }
}

运行代码并查看控制台以查看是否会调用日志..

于 2011-06-09T15:48:52.163 回答