// Daniel Shiffman

// http://natureofcode.com

​

// Bobs

let b1;

let b2;

let b3;

​

let s1;

let s2;

let s3;

​

function setup() {

  createCanvas(640, 360);

  // Create objects at starting position

  // Note third argument in Spring constructor is "rest length"

  b1 = new Bob(width / 2, 100);

  b2 = new Bob(width / 2, 200);

  b3 = new Bob(width / 2, 300);

​

  s1 = new Spring(b1, b2, 100);

  s2 = new Spring(b2, b3, 100);

  s3 = new Spring(b1, b3, 100);

}

​

function draw() {

  background(200);

​

  s1.update();

  s2.update();

  s3.update();

​

  s1.display();

  s2.display();

  s3.display();

​

  b1.update();

  b1.display();

  b2.update();

  b2.display();

  b3.update();

  b3.display();

​

  b1.handleDrag(mouseX, mouseY);

}

​

​

​

function mousePressed() {

  b1.handleClick(mouseX, mouseY);

}

​

function mouseReleased() {

  b1.stopDragging();

}