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HTML 

              
                <!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.5.0/p5.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/hapticdata/toxiclibsjs@0.3.2/build/toxiclibs.js"></script>
  </head>
  <body>
    <script src="sketch.js"></script>
  </body>
</html>
!

CSS
!

JS 

              
                let physics;
let particleA;
let particleB;
let particleC;
let setuppringA;
const {VerletPhysics2D, VerletParticle2D, VerletSpring2D} = toxi.physics2d;
const {Vec2D, Rect} = toxi.geom;
function setup() {
    createCanvas(1200, 700);
    physics = new VerletPhysics2D();
    let bound = new Rect(0,0,1200,400);
    physics.setWorldBounds(bound);

    //shape1
    //particleA
    particleA = new VerletParticle2D(120,200);
    physics.addParticle(particleA);

    //particleB
    particleB = new VerletParticle2D(120,100);
    physics.addParticle(particleB);

    //particleC
    particleC = new VerletParticle2D(250,100);
    physics.addParticle(particleC);

    //particleD
    particleD = new VerletParticle2D(250,200);
    physics.addParticle(particleD);

    
    
    //springA
    springA = new VerletSpring2D(particleA, particleB, 100, 0.000001);
    physics.addSpring(springA);

    //springB
    springA = new VerletSpring2D(particleA, particleC, 100, 0.001);
    physics.addSpring(springA);

    //springC
    springA = new VerletSpring2D(particleC, particleB, 100, 0.0000000000000000000000000000001);
    physics.addSpring(springA);

    //springD
    springD = new VerletSpring2D(particleB, particleD, 100, 0.01);
    physics.addSpring(springD);

    //springE
    springE = new VerletSpring2D(particleA, particleD, 100, 0.00001);
    physics.addSpring(springE);

    //springF
    springF = new VerletSpring2D(particleC, particleD, 100, 0.00000001);
    physics.addSpring(springF);

    //shape2
    //particle1
    particle1 = new VerletParticle2D(320,200);
    physics.addParticle(particle1);

    //particle2
    particle2 = new VerletParticle2D(220,200);
    physics.addParticle(particle2);

    //particle3
    particle3 = new VerletParticle2D(250,100);
    physics.addParticle(particle3);

    //particle4
    particle4 = new VerletParticle2D(250,300);
    physics.addParticle(particle4);

    if(particleA.x = 1200)
    {
        springA = new VerletSpring2D(particleA, particleB, 0, 0);
        physics.addSpring(springA);
        springB = new VerletSpring2D(particleA, particleC, 0, 0);
        physics.addSpring(springB);
        springE = new VerletSpring2D(particleA, particleD, 0, 0);
        physics.addSpring(springE);
    }
    if(particleA.y = 400)
    {
        springA = new VerletSpring2D(particleA, particleB, 0, 0);
        physics.addSpring(springA);
        springB = new VerletSpring2D(particleA, particleC, 0, 0);
        physics.addSpring(springB);
        springE = new VerletSpring2D(particleA, particleD, 0, 0);
        physics.addSpring(springE);
    }
    
    }
  
function draw() {
    background(255);

    //shape1
    //particleA
    circle(particleA.x, particleA.y, 16);
    fill(0,0,255);

    //particleB
    circle(particleB.x, particleB.y, 16);
    fill(0,0,0);

    //particleC
    circle(particleC.x, particleC.y, 16);
    fill(0,255,0);

    //particleD
    circle(particleD.x, particleD.y, 16);
    fill(255,0,0);




    //springA
    line(particleA.x, particleA.y, particleB.x, particleB.y);

    //springB
    line(particleA.x, particleA.y, particleC.x, particleC.y);

    //springC
    line(particleC.x, particleC.y, particleB.x, particleB.y);

    //springD
    line(particleD.x, particleD.y, particleB.x, particleB.y);

    //springE
    line(particleA.x, particleA.y, particleD.x, particleD.y);

    //springF
    line(particleC.x, particleC.y, particleD.x, particleD.y);


    if(mouseIsPressed){
        particleA.lock();
        particleA.x = mouseX;
        particleA.y = mouseY;
        particleA.unlock();
    }


    physics.update();
}
!
999px

Console