ios - 在cocos2d中移动 Sprite

Question

我有 6 个 Sprite 想要移动:

-(id) 初始化 {

if( (self=[super init]) )
{
    CGSize winSize = [[CCDirector sharedDirector] winSize];

    CCSprite * backGround = [CCSprite spriteWithFile:@"background_ipad.png"];
    backGround.position = ccp(winSize.width/2, winSize.height/2);
    [self addChild:backGround z:0];

    cloth1 = [CCSprite spriteWithFile:@"clothe_1.png"];
    cloth1.position = ccp(-200, -15);
    [self addChild:cloth1 z:1];
    cloth2 = [CCSprite spriteWithFile:@"clothe_2.png"];
    cloth2.position = ccp(130, 225);
    [self addChild:cloth2 z:2];

    cloth3 = [CCSprite spriteWithFile:@"clothe_3.png"];
    cloth3.position = ccp(365, 225);
    [self addChild:cloth3 z:3];

    cloth4 = [CCSprite spriteWithFile:@"clothe_4.png"];
    cloth4.position = ccp(-110, -15);
    [self addChild:cloth4 z:4];

    cloth5 = [CCSprite spriteWithFile:@"clothe_5.png"];
    cloth5.position = ccp(130, -20);
    [self addChild:cloth5 z:5];

    cloth6 = [CCSprite spriteWithFile:@"clothe_6.png"];
    cloth6.position = ccp(365, -15);
    [self addChild:cloth6 z:6];

}
return self;
[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];

}

这个移动方法:

-(void) ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event
{
    CGPoint location = [touch locationInView: [touch view]];
    location = [[CCDirector sharedDirector] convertToGL: location];
    //Sprite follows the finger movement.
    [cloth1 setPosition:location];
}

问题是，我想在那里添加更多 Sprite 来移动 Sprite 。我尝试在//跟随手指运动中添加更多 Sprite ，但随后所有 Sprite 都跟随手指运动。我想移动一个 Sprite 。例如:触摸布料1时，移动布料1；当接触布料2时，移动布料2；但不能同时两者。

有人可以告诉我该怎么做吗？

Answer 1

@interface YourClass : NSObject
{
    NSMutableArray  *mSpriteArray;
    CCSprite  *mSpriteOnHand;
}

//实现中:

-(id) init 
{
  .. //your old code
  ..

   [mSpriteArray addObject: cloth1];
   [mSpriteArray addObject: cloth2];
   [mSpriteArray addObject: cloth3];
   [mSpriteArray addObject: cloth4];
   [mSpriteArray addObject: cloth5];
   [mSpriteArray addObject: cloth6];

}

-(void)onEnter
{
    [super onEnter];
    self.touchEnabled = YES; //    self.isTouchEnabled = YES;

}


- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *myTouch = [touches anyObject];
    CGPoint location = [myTouch locationInView:[myTouch view]];
    location = [[CCDirector sharedDirector] convertToGL:location];

    mSpriteOnHand = nil;

    for(CCSprite *cloth in mSpriteArray)
    {
        if(CGRectContainsPoint([cloth boundingBox], location))
        {
            mSpriteOnHand = cloth;
            break;
        }
    }
}


- (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = [touches anyObject];

    CGPoint location = [touch locationInView: [touch view]];
    location = [[CCDirector sharedDirector] convertToGL:location];

    if(mSpriteOnHand)
       mSpriteOnHand.position = location;

 }

- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    mSpriteOnHand = nil;
}

-(void)onExit
{
   [mSpriteArray release]; 
   mSpriteArray = nil;
   [super onExit];
}