vector_walker

let ball_obj;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(100);

  ball_obj = new Ball();

​

  _pos = new createVector(windowWidth/2, windowHeight/2);

  _vel = new createVector(2.5, -2);

}

​

function draw() { 

  _pos.add(_vel);

  ellipse(_pos.x, _pos.y, 20, 20);

  ball_obj.draw();

  ball_obj.move();

}

​

​

class Ball

{

constructor()

  {

    this.ball_pos  = new createVector(windowWidth/2, windowHeight/2);

    this.ball_vel  = new createVector(2, -2);

    print("ball obj constructed");

  } // END CONSTRUCTOR

  move()

  {

    this.ball_pos.add(this.ball_vel);

  }

  draw()

  {

    noStroke();

    fill(255,10);

    //ellipse(windowWidth/2, windowHeight/2, 100, 100);

    ellipse(this.ball_pos.x, this.ball_pos.y, 100, 100);

  }

​

}// End Ball class