practice-1

function setup() {

  createCanvas(300, 300);

  background(255, 255, 255);

  angleMode(DEGREES);

  frameRate(15);

}

​

const r1 = 75;

const r2 = 25;

​

let angle = 0;

​

function draw() {

  // if(angle === 0) {

  //   background(255, 255, 255);

  // }

  //background(255, 255, 255);

  translate(width / 2, height / 2);

  let {x, y} = polarToCartesian(r1, angle)

  //circle(x, y, r2 * 2);

  circle(mouseX-width/2,mouseY-height/2,20);

  angle = (angle + 10) % 360;

}

​

function polarToCartesian(r, theta) {

  return {

      x: r * cos(theta),

      y: r * sin(theta)

  };

}