[robotic]

Ok.... so I'm working on a little cocoa/opengl project.

Everything was going fine until a day ago.... I wrote in some very simple collision detection code. The collision detection didn't work at all, so I started debugging. The collision watcher uses an access method of my opengl objects to see what their coordinates are.

I put a breakpoint at the method that should return the X coordinate.

It never evaluates! The code sends the message, but just skips over it. What am I doing wrong? Here's some snippets of the code:

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
collider.h :

#import &lt;Cocoa/Cocoa.h&gt;
#import &lt;Foundation/Foundation.h&gt;
#import &lt;AppKit/AppKit.h&gt;
#import <font color = red>"MyObject.h"</font>
#import <font color = red>"Cubeobject.h"</font>

<font color = purple>@interface</font> collider : NSObject
{
IBOutlet CubeObject *cubeObject;
IBOutlet MyObject *shipObject;
NSTimer *timer;

}

- (<font color = green>void</font>)init;
- (<font color = purple>BOOL</font>)didCollide;
- (<font color = green>void</font>)bounce;
- (<font color = green>void</font>)collideCheck;

<font color = purple>@end</font>

-----------------------------------------------
part of collider.m:


- (<font color = purple>BOOL</font>)didCollide
{
<font color = green>if</font>( ( ( [shipObject getX] + [shipObject getR] ) &gt; ( [cubeObject getX] - [cubeObject getR] ) ) && ( ( [shipObject getX] + [shipObject getR] ) &lt; ( [cubeObject getX] + [cubeObject getR] ) ) )
{
<font color = green>if</font> ( ( ( [shipObject getY] + [shipObject getR] ) &gt; ( [cubeObject getY] - [cubeObject getR] ) ) && ( ( [shipObject getY] + [shipObject getR] ) &lt; ( [cubeObject getY] + [cubeObject getR] ) ) )
{
<font color = green>return</font> <font color = purple>YES</font>;
}
}

<font color = green>if</font>( ( ( [shipObject getX] - [shipObject getR] ) &gt; ( [cubeObject getX] - [cubeObject getR] ) ) && ( ( [shipObject getX] + [shipObject getR] ) &lt; ( [cubeObject getX] + [cubeObject getR] ) ) )
{
<font color = green>if</font> ( ( ( [shipObject getY] + [shipObject getR] ) &gt; ( [cubeObject getY] - [cubeObject getR] ) ) && ( ( [shipObject getY] + [shipObject getR] ) &lt; ( [cubeObject getY] + [cubeObject getR] ) ) )
{
<font color = green>return</font> <font color = purple>YES</font>;
}
}

<font color = green>if</font>( ( ( [shipObject getX] + [shipObject getR] ) &gt; ( [cubeObject getX] - [cubeObject getR] ) ) && ( ( [shipObject getX] + [shipObject getR] ) &lt; ( [cubeObject getX] + [cubeObject getR] ) ) )
{
<font color = green>if</font> ( ( ( [shipObject getY] - [shipObject getR] ) &gt; ( [cubeObject getY] - [cubeObject getR] ) ) && ( ( [shipObject getY] + [shipObject getR] ) &lt; ( [cubeObject getY] + [cubeObject getR] ) ) )
{
<font color = green>return</font> <font color = purple>YES</font>;
}
}

<font color = green>if</font>( ( ( [shipObject getX] - [shipObject getR] ) &gt; ( [cubeObject getX] - [cubeObject getR] ) ) && ( ( [shipObject getX] + [shipObject getR] ) &lt; ( [cubeObject getX] + [cubeObject getR] ) ) )
{
<font color = green>if</font> ( ( ( [shipObject getY] - [shipObject getR] ) &gt; ( [cubeObject getY] - [cubeObject getR] ) ) && ( ( [shipObject getY] + [shipObject getR] ) &lt; ( [cubeObject getY] + [cubeObject getR] ) ) )
{
<font color = green>return</font> <font color = purple>YES</font>;
}
}

<font color = green>else</font>
{
<font color = green>return</font> <font color = purple>NO</font>;
}

------------------------------

part of MyObject.m :

- (<font color = green>float</font>)getX
{
<font color = green>return</font> x;
}

----------------------------------

</font>[/code]


Why isn't [shipObject getX] being evaluated?


Thanks,
Nathaniel Martin
nbmartin@calpoly.edu

[robotic]

Clarification:

if I put in breakpoints, it does reach - (bool)didCollide:

But it skips over (float)getX.


-Nathaniel