15 lines, no comments · 110 tokens, written in 1 seconds for $0.0003

 1  function setup() {
 2    createCanvas(400, 200);
 3    x = 0;
 4  }
 5  
 6  function draw() {
 7    background(220);
 8    ellipse(x, height / 2, 50, 50);
 9    x += 2;
10    if (x > width) {
11      x = 0;
12    }
13  }
14  
15  let x;