如何解决Collison检测中调用CGRectIntersectsRect的问题
| 当两个imageViews相交时,我想进行碰撞检测。以下是我用于冲突检测的代码。- (void)onTimer
{
// build a view from our flake image
flakeView = [[UIImageView alloc] initWithImage:flakeImage];
flakeView.backgroundColor=[UIColor blueColor];
// use the random() function to randomize up our flake attributes
int startX =round(random() % 460);
printf(\"\\n ===== startX :%d\",startX);
int endX = round(random() % 460);
printf(\"\\n ===== endX :%d\",endX);
double scale = 1 / round(random() % 100) - 1.0;
double speed = 1 / round(random() %100) + 1.0;
// set the flake start position
flakeView.frame = CGRectMake(startX,-100.0,25.0 * scale,25.0 * scale);
flakeView.alpha = 1.0;
// put the flake in our main view
[mView addSubview:flakeView];
[UIView beginAnimations:nil context:flakeView];
[UIView setAnimationDuration:20 * speed];
if(dragger.setFrame==YES)
{
printf(\"\\n =====dragger.frame.origin.x:%f\",dragger.frame.origin.x);
printf(\"\\n =====dragger.frame.origin.y:%f\",dragger.frame.origin.y);
flakeView.frame = CGRectMake(dragger.frame.origin.x,dragger.frame.origin.y,25.0 * scale,25.0 * scale);
printf(\"\\n =====flakeView.frame.origin.x:%f\",flakeView.frame.origin.x);
printf(\"\\n =====flakeView.frame.origin.y:%f\",flakeView.frame.origin.y);
if(CGRectIntersectsRect(flakeView.frame,dragger.frame))
{
NSLog(@\"\\nRect is Intersecting\");
}
dragger.setFrame=NO;
}
else
{
flakeView.frame = CGRectMake(endX,500.0,25.0 * scale);
}
[UIView setAnimationDidStopSelector:@selector(onAnimationComplete:finished:context:)];
[UIView setAnimationDelegate:self];
[UIView commitAnimations];
}
在此拖动框架中是一个inageView的框架。当我们将此图像拖动到flakeview图像上时,该方法
if(CGRectIntersectsRect(flakeView.frame,dragger.frame))
没有接到电话。
任何人都可以在这方面提供帮助。
提前致谢。
解决方法
您可以在这里参考...。
iPhone SDK中碰撞检测的示例代码
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