function setup(){ var myCanvas = createCanvas(windowWidth,windowHeight); //you must keep this line unmodified rect(width/2,height/2,50,50) x = 0; y = 0; } function draw() { //start writing your code here x = x + random(5) y = y + random(5) fill(0,255,0) rect(x,y,20,20); fill(255,0,0) rect(width-x,height-y,20,20); fill(255,0,255) rect(x,height-y,20,20); fill(0,255,255) rect(width-x,y,20,20); }