// Daniel Shiffman

// http://natureofcode.com

​

// Demonstration of the basics of motion with vector.

// A "Mover" object stores position, velocity, and acceleration as vectors

// The motion is controlled by affecting the acceleration (in this case towards the mouse)

​

let movers = [];

// let xys =[[100, 200], [400, 200]];

let xys;

let zz = 0;

let points;

​

function setup() {

  createCanvas(640, 360);

​

  points = [createVector(100, 100), 

            createVector(400, 200),

           createVector(200, 300),

           createVector(300, 50)];

​

  for (let i = 0; i < 100; i++) {

    let v = random(points);

    movers[i] = new Mover(v.x, v.y);

  }

//   for (var i = 0; i < 20; i++) {

//     movers[i] = new Mover(points[0].x, points[0].y);

//   }

//   for (var i = 20; i < 40; i++) {

//     movers[i] = new Mover(points[1].x, points[1].y);

//   }

}

​

function draw() {

  background(0);

  // xy = xys[zz % 6];

  // zz++;

  // background(30);

  for (let i = 0; i < movers.length; i++) {

    movers[i].update();

    movers[i].display();

  }

​

  // if (frameCount % 50) {

  //   noStroke();

  //   fill(255);

  //   rect(random(width), random(height),  1,  1);

  // }

}