​

function setup() {

  createCanvas(400, 400);

​

}

​

function mousePressed(){

   if (mouseX>150 && mouseX < 250 && mouseY>150 && mouseY < 250 && buttonDown == true ){

       fill(225)

       buttonDown = false

   }else if (mouseX>150 && mouseX < 250 && mouseY>150 && mouseY < 250 && buttonDown == false){

       fill(0)

     buttonDown = true

     }

}

​

function draw() {

  background(220);

  rect(150,150,100,100)

  print(mouseX,mouseY)

​

}

​

​