iphone - 循环遍历数组以移除触摸的对象（iPhone/Cocos2d）

Question

我正在使用 cocos2d 构建游戏。我有一组 CCSprite，我希望能够触摸它们并删除被触摸的那个。

现在我有这个...

-(void) spawn {
   mySprite = [CCSprite spriteWithFile:@"image.png"];
   mySprite.position = ccp(positionX,positionY);
   [myArray addObject:mySprite];
   [self addChild:mySprite];
}
- (void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
   UITouch* touch = [touches anyObject];
   CGPoint location = [touch locationInView: [touch view]]; 

    NSUInteger i, count = [myArray count];
    for (i = 0; i < count; i++) {
    mySprite = (CCSprite *)[myArray objectAtIndex:i];
    if (CGRectContainsPoint([mySprite boundingBox], location)) {

       [self removeChild:mySprite cleanup:YES]; 

    }
}

我以前从来没有这样做过。有没有人有办法解决吗？

谢谢，迈克尔

Answer 1

- (void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch* touch = [touches anyObject];
    CGPoint location = [touch locationInView: [touch view]]; 
    NSMutableArray *spritesToDelete = [[NSMutableArray alloc] init];

    for(CCSprite* mySprite in myArray) {
        if (CGRectContainsPoint([mySprite boundingBox], location))
            [spritesToDelete addObject:mySprite];

    for(CCSprite* deadSprite in spritesToDelete) {
        [self removeChild:deadSprite cleanup:YES];
        [myArray removeObject:deadSprite];
    }
}

此代码使用 for-each 创建满足条件的对象数组，然后将其删除。