/* devrand.org
 * Usage: 
 *   Mouse position changes shape offset
 *   Hold right mouse button and drag to rotate image
 *   0-9: change shape size
 *   q: turn on color
 *   w: white only
 *   e: place an ellipse
 *   r: place a rectangle
 *   t: capture frames/stop capture
 *   y: clear image
 *   ffmpeg -y -i pic%1d.jpg -b 9800000 emergentFeedback.mpg 
 */

import processing.opengl.*;

float   a = 0; 
int     s = 50;	
boolean c = true;
boolean v = false;
int     p = 0;

void setup() {
  size(800, 800, OPENGL);
  background(0);
  stroke(0);
}
		
void draw() {
  PImage cp = get();  
 
  translate(width/2, height/2);
  rotateZ(a/100);
  image(cp, 4, 4, 792,792);  
  
  if(mousePressed) a = mouseX + mouseY;
  if(v) save("pic" + (p++) + ".jpg");
}

void keyPressed()
{ 
  if(c) fill(mouseX, mouseY, mouseX + mouseY);
  else  fill(255,255,255);
  
  if (key >= '1' && key <= '9') s = 10 * (key - '0');
  
  switch (key)
  {  
    case '0':
       s = 100;
       break;
    case 'e':
       ellipse(-200 + mouseX,-200 + mouseY, s, s);
       break;
    case 'r':
       rect(-200 + mouseX,-200 + mouseY, s, s);
       break;
    case 'w':
       c = false;
       break;
    case 'q':
       c = true;
       break;
    case 'y':
       background(0);
    case 't':
       v = !v;
       println("Capturing: " + v);
       break;
  }
}