text: function Particle() {
    this.x = 100;
    this.y = 99;
    // this.show = function() {
    //   point(this.x, this.y)
    // }
  }
  
  Particle.prototype.show = function() {
    point(this.x, this.y);
  }
  
  var p;
  var v;
  
  p5.Vector.prototype.double = function() {
    this.x *= 2;
    this.y *= 2;
    this.z *- 2;
  }
  
  function setup() {
    createCanvas(600, 600);
    p = new Particle();
  
    v = createVector(3, 4);
  }
  
  function draw() {
  
  }