#
# Compiling Processing apps in XCode
# by Gabe Dunne, Josh Nimoy, and David Wicks May 3, 2009
# This solution emerged collaboratively from the [o_O] Oooshiny Group
#

1. Copy the Processing core.jar to your Java extensions folder (I used 1.0.3)
2. In XCode, choose File > New Project. Go to the Java section and choose "Java Application"
3. Replace the code in [PROJECT_NAME].java with the following:

import processing.core.*;

public class ProcessingApplication extends PApplet {
     
     public static boolean FULLSCREEN = false; // toggle fullscreen app
     public static void main(String[] args)
     {
           String className = "ProcessingApplication";
           if(FULLSCREEN) { PApplet.main( new String[] { "--present", className } ); }
           else           { PApplet.main( new String[] { className } ); }
     }
     
     public void setup(){
           size(300,300);
           colorMode(RGB,1,1,1);
           rectMode(CENTER);
     }
     
     public void draw(){
           background(1,0,0);
           rect(mouseX, mouseY,50,50);
     }
   
}

4. The build should succeed.

5. Find your executable in the dist/ folder and launch it any time.

David: One oddity: I can't figure out how to get rid of the AboutBox.java and PrefPane.java files that XCode creates automatically. If you remove them using Finder, they go red in XCode, but everything still works.