title: Get touch location from touchesBegan? (And other game questions)
body: <p>I'm trying to get the location of the touch event on the screen from </p>
  
  <p><code>-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event</code>. </p>
  
  <p>What code can I use to read the touch coordinates? I've gotten this far so far:</p>
  
  <pre><code>NSLog(@"Touch data: %@", [NSString stringWithFormat:@"NSSet: %@",[touches description]]);
  </code></pre>
  
  <p>I'm trying to make a game using an OpenGL template application. The touches will only register in the <code>EAGLView</code> file, not the <code>ESRenderer1</code> 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?</p>