let gravity;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  colorMode(HSB);

  gravity = createVector(0, 0.2);

  stroke(255);

  strokeWeight(4);

  background(0);

}

​

function draw() {

  colorMode(HSB);

  stroke(255);

  strokeWeight(4);

  colorMode(RGB);

  background(0, 0, 0, 25);

  mothersDay(width/2, height/2, 30);

  if (random(1) < 0.04) {

    fireworks.push(new Firework());

  }

  for (let i = fireworks.length - 1; i >= 0; i--) {

    fireworks[i].update();

    fireworks[i].show();

    if (fireworks[i].done()) {

      fireworks.splice(i, 1);

    }

  }

}

​

function mothersDay(x, y, s){

  colorMode(HSB);

  textAlign(CENTER, CENTER);

  textSize(s);

  noStroke();

  fill(frameCount*0.5 % 360, 255, 255);

  push();

  translate(x, y);

  textSize( abs(cos(frameCount*0.02) * 30) + 20);

  rotate( (cos(frameCount*0.05) * 30) * 0.01);

  text("Happy Mothers Day!!!", 0, 0);

  pop();

}

​

function clamp(c, cap){

  do { c -= cap } while ( c > cap );

  return c

}

​