​

​

let prevPosX,prevPosY;

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  prevPosX = getItem('posX');

  prevPosY = getItem('posY');

  if(prevPosX == null){

    circle(100,100,100);

  }else{

    circle(prevPosX,prevPosY,100)

  }

}

​

function mouseClicked(){

  background(220);

  let posX = mouseX;

  let posY = mouseY;

  circle(posX,posY,100);

  storeItem('posX',posX);

  storeItem('posY',posY);

}