I'm trying to get the location of the touch event on the screen from
我正试图从屏幕上获取触摸事件的位置
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event.
- (void)touchesBegan:(NSSet *)触及withEvent:(UIEvent *)事件。
What code can I use to read the touch coordinates? I've gotten this far so far:
我可以用什么代码来读取触摸坐标?到目前为止,我已经走到了这一步:
NSLog(@"Touch data: %@", [NSString stringWithFormat:@"NSSet: %@",[touches description]]);
I'm trying to make a game using an OpenGL template application. The touches will only register in the EAGLView file, not the ESRenderer1 file. I assume that I should use the EAGlView to set variables and then read the variables from there into the ESRenderer to perform game calculations. Is this a good approach?
我正在尝试使用OpenGL模板应用程序制作游戏。触摸仅在EAGLView文件中注册,而不是在ESRenderer1文件中注册。我假设我应该使用EAGlView来设置变量,然后从那里读取变量到ESRenderer来执行游戏计算。这是一个好方法吗?
1 个解决方案
#1
16
The following code does it:
以下代码执行此操作:
NSArray *touchesArray = [touches allObjects];
for(int i=0; i<[touchesArray count]; i++)
{
UITouch *touch = (UITouch *)[touchesArray objectAtIndex:i];
CGPoint point = [touch locationInView:nil];
// do something with 'point'
}
#1
16
The following code does it:
以下代码执行此操作:
NSArray *touchesArray = [touches allObjects];
for(int i=0; i<[touchesArray count]; i++)
{
UITouch *touch = (UITouch *)[touchesArray objectAtIndex:i];
CGPoint point = [touch locationInView:nil];
// do something with 'point'
}