constructor(position, size, c, angle, isStatic) {

    this.radius = size.x / 2; // Use half of the width (size.x) as the radius for the circle

    this.color = c;

​

    // Create a Matter.js circle body

    this.body = Bodies.circle(position.x, position.y, this.radius, { isStatic: isStatic });

    Composite.add(engine.world, this.body);

  }

  update() {

    let mou = createVector(mouseX, mouseY);

    let pos = createVector(this.body.position.x, this.body.position.y);

    let d = mou.dist(pos);

​

    // If the mouse is close to the circle, make it dynamic

    if (d < this.radius * 2) {

      Matter.Body.setStatic(this.body, false);

    }

  }

  display() {

    let position = this.body.position;

    let angle = this.body.angle;

​

    ellipseMode(RADIUS);

    push();

    translate(position.x, position.y);

    fill(this.color);

    rotate(angle);

    ellipse(0, 0, this.radius, this.radius);

    pop();

  }

}

​

// Matter.js setup

let Engine = Matter.Engine,

    Runner = Matter.Runner,

    Bodies = Matter.Bodies,

    Composite = Matter.Composite;

​

let engine = Engine.create();

let runner = Runner.create();

Runner.run(runner, engine);

​

let palette = ["#00ffff", "#ff00ff", "#ffff00"];

let modules = [];

​

function setup() {

  createCanvas(400, 400);

  background("white");

  textSize(200);

  textAlign(CENTER, CENTER);

  textStyle(BOLD);

  text("text", width / 2, height / 2);

​

  let gap = 10;

​

  for (let y = 0; y < height; y += gap) {

    for (let x = 0; x < width; x += gap) {

      let c = get(x, y);

      let b = brightness(c);

      if (b == 0) {

        modules.push(

          new Module(

            createVector(x, y),

            createVector(gap * 0.6, gap), // This determines the radius

            random(palette),

            random(0, 360),

            true

          )

        );

      }

    }

  }

​

  modules.push(

    new Module(

      createVector(width / 2, height),

      createVector(width, 20), // This creates a ground-like object

      "white",

      0,

      true

    )

  );

}

​

function draw() {

  background(220);

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

    modules[i].display();

    modules[i].update();

  }

}

​