//// Exercrise
//// yixing tao 9/30/2015  


//size of the screen
void setup() {
  size(600, 250);
  reset();
}
  void reset() {
    r=100;
    g=200;
    b=0;
    
//background and botton
  background(r, g, b);
  fill(0, 150, 100);
  rect(200, 150, 25, 25);
  text("here!", 200,150);
}

//key
void keyPressed(){
  if(key== 'q') exit();
  if(key== 'r') reset();
}

//mouse click 
 void mousePressed(){
   if( hit(mouseX, mouseY,60, 60, 60,50));{
     background(r+50, g-80, b+20);}