let bod2 = [];

const G = 0.0001;

​

function setup() {

  createCanvas(600, 600);

  bod1 = {

    pos: createVector(width / 2, height / 2),

    vel: createVector(2, 1)

  };

  for (let i = 0; i < 10; i++) {

    bod2[i] = {

      pos: createVector(random(0, width), random(0, height)),

      mass: random(1, 5)

    };

  }

}

​

function draw() {

  background(220);

  // Draw bod1

  ellipse(bod1.pos.x, bod1.pos.y, 30, 30);

  // Draw bod2

  for (let bod of bod2) {

    ellipse(bod.pos.x, bod.pos.y, 30, 30);

  }

  // Update velocities

  for (let bod of bod2) {

    const direction = p5.Vector.sub(bod.pos, bod1.pos);

    const distanceSq = direction.magSq();

    const forceMagnitude = (G * bod.mass) / distanceSq;

    const force = direction.normalize().mult(forceMagnitude);

    bod1.vel.add(force);

  }

  // Update positions

  bod1.pos.add(bod1.vel);

}

​