iphone - 当我试图移动它时，精灵消失了

Question

我试图让我的精灵在触摸时移动，但似乎在触摸时消失然后在第二次触摸时重新出现。我不知道如何解决这个问题，让我的精灵向我点击的方向移动。我一直试图弄清楚这一点，但似乎我不走运。我希望有人能指出我正确的方向。

      CGSize winSize = [[CCDirector sharedDirector] winSize];
     player = [CCSprite spriteWithFile:@"Player.png" 
                                       rect:CGRectMake(0, 0, 27, 40)];
     player.position = ccp(player.contentSize.width/2, winSize.height/2);
    [self addChild:player z:1]; 










          (void) registerWithTouchDispatcher
        {
          [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self 
                                             priority:0 swallowsTouches:YES];
    }

        -(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
         {
        return YES;

     -(void)setPlayerPosition:(CGPoint)position {
      player.position = position;
    }

     -(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
     {

   CGPoint touchLocation = [touch locationInView: [touch view]];       
    touchLocation = [[CCDirector sharedDirector] convertToGL: touchLocation];
    touchLocation = [self convertToNodeSpace:touchLocation];

    CGPoint playerPos = player.position;
     CGPoint diff = ccpSub(touchLocation, playerPos);
     if (abs(diff.x) > abs(diff.y)) {
         if (diff.x > 0) {
    playerPos.x += contentSize_.width;
} else {
    playerPos.x -= contentSize_.width; 
}    
   } else {
if (diff.y > 0) {
      playerPos.y += contentSize_.height;
} else {
    playerPos.y -= contentSize_.height;
}
    }

Answer 1

您的触摸功能的语法似乎不同。

试试这个代码

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

    CGPoint playerPos = player.position;

}