2.8e_stop

// Motion using an operator 1

// In this sketch we use a conditional operator to stop the ellipse

​

// Why does the ball stop at the edge of the canvas?

​

let x = 0;

​

function setup() {

  background(64, 0, 120);

  createCanvas(300, 300);

  noFill();

  stroke(255);

  strokeWeight(2);

}

​

function draw() {

  background(64, 0, 120);

  ellipse(x, 150, 100, 100);

  if (x < width) {

    x = x + 3;

  }

}