iphone - 在cocos2D中触摸 Sprite 会导致我的应用崩溃

好吧，我的代码有问题:

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch* myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView: [myTouch view]];
location = [[CCDirector sharedDirector]convertToGL:location];
CGRect MoveableSpriteRect =CGRectMake(oeuf1.position.x -(oeuf1.contentSize.width/2),oeuf1.position.y-(oeuf1.contentSize.height/2),oeuf1.contentSize.width,oeuf1.contentSize.height);

if (CGRectContainsPoint(MoveableSpriteRect, location)) {
    [self removeChild:oeuf1 cleanup: YES];
    [self removeChild:ombreOeuf1 cleanup: YES];
}
}

当我触摸 oeuf1 时，它消失了，但是我再次触摸屏幕时，我的应用崩溃了，我不知道为什么？请问该如何解决？谢谢 。对不起，我的英语我是法语:/

最佳答案

一旦删除，CGRect MoveableSpriteRect =CGRectMake(oeuf1.position.x -(oeuf1.contentSize.width/2),oeuf1.position.y-(oeuf1.contentSize.height/2),oeuf1.contentSize.width,oeuf1.contentSize.height);行仍然引用oeuf1，因此将导致EXC_BAD_ACCESS错误。解决该问题的最简单方法是在头文件中声明BOOL，并在删除YES和true时将其设置为oeuf1 / ombreOeuf1。然后，如果BOOL为true，请不要运行

CGRect MoveableSpriteRect =CGRectMake(oeuf1.position.x -(oeuf1.contentSize.width/2),oeuf1.position.y-(oeuf1.contentSize.height/2),oeuf1.contentSize.width,oeuf1.contentSize.height);

if (CGRectContainsPoint(MoveableSpriteRect, location)) {
    [self removeChild:oeuf1 cleanup: YES];
    [self removeChild:ombreOeuf1 cleanup: YES];
}

编辑:

在您的.h文件中添加:

@interface .... {
    ...
    BOOL oeuf1Removed; // Feel free to translate this to French!
}

然后将-touchesBegan更改为:

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch* myTouch = [touches anyObject];
    CGPoint location = [myTouch locationInView:[myTouch view]];
    location = [[CCDirector sharedDirector] convertToGL:location];
    if (!oeuf1Removed) {
        CGRect MoveableSpriteRect = CGRectMake(oeuf1.position.x -(oeuf1.contentSize.width/2),oeuf1.position.y-(oeuf1.contentSize.height/2),oeuf1.contentSize.width,oeuf1.contentSize.height);

        if (CGRectContainsPoint(MoveableSpriteRect, location)) {
            [self removeChild:oeuf1 cleanup: YES];
            [self removeChild:ombreOeuf1 cleanup: YES];
            oeuf1Removed = YES;
        }
    }
}