///x4
int r, g, b;
String title= "Click Me!";
float button1X=200, button1Y=200, button1W=80, button1H=80;
int counter=0;

void setup() {
  background(200, 180, 150);
  size( 400, 400);
  reset();
}

void draw() {
  button( button1X, button1Y, button1W, button1H);
}

void reset () {
  r= 210;
  g= 240;
  b= 80;
}

void button( float x, float y, float w, float, h ) {
  fill(255, 0, 0);
  ellipse( 200, 200, 80, 80);
}

void mousePressed() {
  if ( hit (mouseX, mouseY, button1X, button1Y, button1W, button1H ) ) {
    counter= counter+1;
    if (counter % 2 > 0) {
      r= 160;
      g= 200;
      b= 80;
    } else {
      reset();
    }
  }
}