constructor(x, y, firework) {

    this.pos = createVector(x, y);

    this.firework = firework;

    this.lifespan = 255;

    if (this.firework) {

      this.shoot();

    } else {

      this.shape();

    }

    this.acc = createVector(0, 0);

  }

​

  shoot() {

    this.vel = createVector(0, random(-15, -8));

  }

​

  shape() {

    this.vel = p5.Vector.random2D();

    this.vel.mult(random(1, 9));

  }

  applyForce(force) {

    this.acc.add(force)

  }

​

  update() {

    if (!this.firework) {

      this.vel.mult(0.92);

      this.lifespan -= 4;

    }

    this.vel.add(this.acc);

    this.pos.add(this.vel);

    this.acc.mult(0);

  }

​

  done() {

    if (this.lifespan <= 0) {

      return true;

    } else {

      return false;

    }

  }

​

  show() {

    if (!this.firework) {

      strokeWeight(2)

      stroke(255, this.lifespan);

    } else {

      strokeWeight(4);

      stroke(255);

    }

​

    if (this.lifespan < 255 && this.lifespan > 200) {

      strokeWeight(4);

      stroke(212, 96, 126);

    }

    point(this.pos.x, this.pos.y);

  }

}

​

class Burst extends Particle {

​

  shape() {

    this.vel = p5.Vector.random2D();

    this.vel.mult(12);

  }

  shoot() {

    this.vel = createVector(0, random(-13, -10));

  }

​

  update() {

    if (!this.firework) {

      this.vel.mult(0.92);

      this.lifespan -= 12;

    }

    this.vel.add(this.acc);

    this.pos.add(this.vel);

    this.acc.mult(0);

  }

​

  show() {

    if (!this.firework) {

      strokeWeight(5)

      stroke(83, 168, 196, this.lifespan);

    } else {

      strokeWeight(5);

      stroke(83, 168, 255);

    }

​

    if (!this.firework && this.lifespan < 200) {

      strokeWeight(2);

      stroke(83, 168, 255);

    }

    point(this.pos.x, this.pos.y);

  }

}

​

​

class Chunky extends Particle {

  shape() {

    this.vel = createVector(random(.5, -.5), random(-3, 3));

    this.vel.mult(floor(random(-4, -5)));

  }

​

  show() {

    if (!this.firework) {

      strokeWeight(random(1, 8));

      stroke(246, 228, 136, this.lifespan);

    } else {

      strokeWeight(6);

      stroke(246, 228, 136);

    }

    point(this.pos.x, this.pos.y);

  }

}

​

class Flare extends Particle {

  shape() {

    this.vel = createVector(random(-2, 2), noise(3) * -1);

    this.vel.mult(random(6, 12));

  }

}