let num = 500; //460

let angle = 0;

​

function preload(){

    wings = loadSound('wings.wav');

  // buzz = loadSound('buzz-small.wav');

  cicada = loadSound('cicada_small.wav');

}

​

function setup() {

  createCanvas(windowWidth,windowHeight);

  // createCanvas(600, 400);

  cicada.loop();

  for (let i = 0; i < num; i++) {

    let x = random(width);

    let y = random(height);

    bubbles[i] = new Bubble(x, y);

  }

  // wings.rate(-0.2);

}

​

function draw() {

  // background(20, 120, 120, 120);

  background(18,200);

  // let color = map(sin(angle), -1, 1, 15, 0);

  let t = floor(random(num*40));

  if(t<num){

    // if (color < 14) {

    //   bubbles[t].col = 0;

    // } else {

      bubbles[t].col = 255;

        wings.play();

        // buzz.play();

    }

  // }

  for (let i = num - 1; i >= 0; i--) {

    bubbles[i].update();

    bubbles[i].display();

    bubbles[i].borders();

​

    let force = p5.Vector.random2D();

    force.mult(0.02);

    bubbles[i].applyForce(force);

​

    if(bubbles[i].glowState==false){

      for (let j = num - 1; j >= 0; j--) {

        if (i != j && bubbles[i].near(bubbles[j])) {

          // nearness = true;

          // bubbles[i].checkNeighbour(bubbles[j]);

          if (bubbles[i].checkNeighbour(bubbles[j])) {

            bubbles[i].glow();

            break;

          }

        }

      }  

    }

  }

  angle += 0.08;

}