CGRectIntersectsRect问题 [英] CGRectIntersectsRect Problem

问题描述

我正在用迷宫制作一个应用程序，我在界面构建器中的迷宫中放了一个球(我为此放了一个插座)，我有一个touchesMoved:

I am making a app with a maze, I put a ball inside the maze in the interface builder (I put an outlet for it) I have a touchesMoved:

 -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint point;
point = [touch locationInView:self.view];

ball.center = point;

if (CGRectIntersectsRect(ball.frame, maze.frame)) {
   //my stuff
}


   }

我有两个CGRectIntersectsRect if语句，如果球的框架碰到了迷宫的框架，那么//我的东西发生了，但是由于某种原因，每当我尝试移动球而不碰到迷宫的框架时， //我的事情发生了.我不知道为什么，也许是因为球在迷宫中，可能不是因为我说cgrectintersectsrect框架没有界限.那为什么会这样呢?

I have two CGRectIntersectsRect if statements, I say, if the ball's frame touches the maze's frame, then // my stuff happens, but for some reason, whenever i try to move the ball, without touching the frame of the maze, // my stuff happens. I dont know why, maybe it is because the ball is IN the maze, probably not because i said if cgrectintersectsrect frame not bounds. so why is this happening?

我还有一个uiimageview的iboutlet，称为flag，我具有相同的cgrectintersectsrect类型的代码，并且在相同的touchesMoved下工作，所以为什么这样做不起作用

I have another iboutlet of a uiimageview called flag, i have the same cgrectintersectsrect type of code, and it works in the same touchesMoved, so why does this not work

推荐答案

尝试这个

UITouch *touch = [[event allTouches] anyObject];

CGPoint point;

point = [touch locationInView:self.view];


point = [[CCDirector sharedDirector] convertToGL: point];


if (CGRectIntersectsRect(ball.bounds, maze.bounds)) {


//frame - x,y,w,h

//bounds- w,h

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