// Cloned by Yiming Fu on 30 Nov 2022 from World "Tutorial 18.3" by "Coding Train" project 
// Please leave this clone trail here.
 

// Daniel Shiffman
// http://codingtra.in
// http://patreon.com/codingtrain

// Video: https://youtu.be/k2FguXvqp60

let angle = 0;

function setup() {
  createCanvas(400, 300, WEBGL);
}

function draw() {
  let dx = mouseX - width / 2;
  let dy = mouseY - height / 2;
  let v = createVector(dx, dy, 0);
  v.div(100);

  ambientLight(0, 0, 255);
  directionalLight(255, 0, 0, v);
  //pointLight(255, 0, 0, 200, 0, 0);

  background(175);

  rotateX(angle);
  rotateY(angle * 0.3);
  rotateZ(angle * 1.2);

  noStroke();
  ambientMaterial(255);
  //fill(0, 0, 255);
  torus(100, 25);

  angle += 0.03;
}