/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://dflab.sketchpad.cc/sp/pad/view/ro.4rV0bqLrTYJ/rev.2
 * 
 * authors: 
 *   Alexandre Murtinheira

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



void setup() {
  size(300,300);
  smooth(0);
  background(0);
}
 
void keyPressed() {
  if (key == 'b') {
    background(0,0,255);
  } else if (key == 'r'){
    background(255,0,0);
  }else if (key == 'g'){
    background(0,255,0);
  }
}
 
void draw() {
  fill(random(0,255),random(0,255),random(0,255));
  PVector mouse = new PVector(mouseX,mouseY);
  PVector center = new PVector(width/2,height/2);
  mouse.sub(center);
  PVector right = new PVector (width/4,height/4);
  mouse.sub(right);
  PVector left = new PVector (width/5,height/5);
  
  translate(width/2,height/2);
  stroke(50, 0, 0);
  strokeWeight(50);
  point(mouse.x,mouse.y);
  
  translate(width/4,height/4);
  stroke(150, 0, 0);
  point(mouse.x,mouse.y);
  
  translate(width/5,height/5);
  stroke(50, 10, 0);
  point(mouse.x,mouse.y);
}