Xcode 如何在cocos2d中增加分数标签

所以我有一个标签，我希望当一个图像与另一个图像碰撞时，它增加10。分数=分数+10；但我不知道为什么，它反而增加了40。这是我的代码：

-(id) init
{
    if( (self=[super init] )) {

        [self schedule:@selector(update:)];

        score = 0;

        scoreLabel = [CCLabelTTF labelWithString:[NSString stringWithFormat:@"%d",score] fontName:@"PUSAB___.TTF" fontSize:15 ];
        scoreLabel.position=ccp(450,30);
        [self addChild:scoreLabel];
    }
}

- (void)update:(ccTime)dt {
    if (CGRectIntersectsRect(mangeurRect, targetRect)) {
        [targetsToDelete addObject:target];     
        score=score + 10; ;// Not really, but your score changes somehow...
        [scoreLabel setString: [NSString stringWithFormat:@"%d",score]];
    }                       
}

---

对不起，我的英语是法语：/

您可能应该检查您的目标是否已经在要删除的目标中，如下所示，以防实际清空targetsToDelete结构的过程以某种方式延迟了几次：

- (void)update:(ccTime)dt {
    if ([targetsToDelete containsObject:target]) return;    // already scored.
    if (CGRectIntersectsRect(mangeurRect, targetRect)) {
        [targetsToDelete addObject:target];     
        score=score + 10; ;// Not really, but your score changes somehow...
        [scoreLabel setString: [NSString stringWithFormat:@"%d",score]];
    }                       
}

---

上面假设targetsToDelete是一个NSMutableArray。

我认为在CGRectIntersectsRect中没有得到任何帧。您应该尝试下面的代码

- (void)update:(ccTime)dt {

if (CGRectIntersectsRect([mangeurRect frame], [targetRect frame])) {
    [targetsToDelete addObject:target];     
    score += 10;
    [scoreLabel setString: [NSString stringWithFormat:@"%d",score]];
}                       

}

或

- (void)update:(ccTime)dt {

if (CGRectIntersectsRect([mangeurRect boundingBox], [targetRect boundingBox])) {
    [targetsToDelete addObject:target];     
    score += 10; 
    [scoreLabel setString: [NSString stringWithFormat:@"%d",score]];
}                       

}

---

这样，每当图像相互碰撞时，分数可能会增加

您的更新方法不完整。试试这个：

- (void)update:(ccTime)dt {
    if (CGRectIntersectsRect(mangeurRect, targetRect)) {
        [targetsToDelete addObject:target];     
        score=score + 10; ;// Not really, but your score changes somehow...
        [scoreLabel setString: [NSString stringWithFormat:@"%d",score]];

        //do something with your targetsToDelete array.. 
        for (CCSprite *target in targetsToDelete) {
         //[_targets removeObject:target]; //uncomment this line, if you have saved your targets in a _targets array
         [self removeChild:target cleanup:YES];                                 
        }
    }                       
}

---

参考：你的英语很好。但是，代码的格式设置…：）英雄联盟那么问题出在哪里呢？？）如何初始化/获取“mangeurRect”和“targetRect”？这些屏幕相对矩形是否需要更新每帧或恒定的局部精灵边界框？这些是在更新方法中初始化的。是否良好？尝试向代码中添加一些日志，并根据正在检查的对象查看分数何时更改。