Question

我有一个NSDictionary（allSprites）有很多精灵（spriteX），在我的Touch方法中，我想检查精灵是否被触及。

我的问题是它不会对boundingBox做出反应。我没有看到我的错误！这是NSDictionary的问题吗？我没有任何错误或任何错误...但它没有工作。

还有另一种检查NSDictionary中的boundingBox的方法吗？有人可以帮帮我吗？

-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
  for (UITouch *touch in [event allTouches]) {
    for (NSValue* value in allSprites) {
      CGPoint location = [touch locationInView:touch.view];
      location = [[CCDirector sharedDirector] convertToGL:location];
      if(CGRectContainsPoint([spriteX boundingBox], location)){
         NSLog(@"sprite was touched");
      }
    }
  }
}

Answer 1

你似乎没有在你的循环中引用spriteX而不是在边界框的测试中，它可能没有被初始化。也许你打算这样做：

for (CCSprite* spriteX in [allSprites allValues]) {
  CGPoint location = [touch locationInView:touch.view];
  location = [[CCDirector sharedDirector] convertToGL:location];
  if(CGRectContainsPoint([spriteX boundingBox], location)){
     NSLog(@"sprite was touched");
  }
}

如果你需要精灵的密钥：

for (NSString*key in [allSprites allKeys]) {
  spriteX = [allSprites objectForKey:key];
  CGPoint location = [touch locationInView:touch.view];
  location = [[CCDirector sharedDirector] convertToGL:location];
  if(CGRectContainsPoint([spriteX boundingBox], location)){
     NSLog(@"sprite with key %@ was touched",key);
  }
}

NSDictionary中的CCSprite不会对BoundingBox做出反应

1 个答案: