Emojis Galore! - OpenProcessing

mySketch
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/*
Emojis galore!
​
Author:
  Jason Labbe
​
Site:
  jasonlabbe3d.com
*/
​
var emojis = ["🙂", "😲", "☹️", "😠", "😣", "😖", "😭", "🤕"];
var balls = [];
var grounds;
var emojiSize = 50;
var emojiRad = emojiSize / 2.0;
var squashTimeLength = 20;
​
​
function preload() {
  soundFormats("wav", "mp3");
  fallingSound = loadSound("falling.wav");
  smackSound = loadSound("smack.wav");
  gruntSound = loadSound("grunt.wav");
}
​
​
function setup() {
  createCanvas(windowWidth, windowHeight);
  textSize(emojiSize);
  mouseX = width;
  
  grounds = [
    [700, height + 500],
    [500, height / 2 + 200],
    [300, height / 2 + 100],
    [0, height / 2]
  ]
}
​
​
function draw() {
  background(0);
  
  stroke(255);
  strokeWeight(3);
  
  for (let i = 0; i < grounds.length; i++) {
    if (i > 0) {
      line(grounds[i][0], grounds[i][1], grounds[i - 1][0], grounds[i][1]);
    }
  }
  
  noStroke();
  fill(255, 255, 0);
  
  if (frameCount % 15 == 0) {
    balls.push(new Ball(0, 0));
  }
  
  for (let i = balls.length - 1; i > -1; i--) {
    balls[i].sim();
    push();
      translate(balls[i].pos.x, balls[i].pos.y);
      
      // Fake squash & stretch!
      if (balls[i].squashTimer > -1) {
        if (balls[i].squashTimer > squashTimeLength - 5) {
          translate(0, emojiRad * 0.5);
          scale(
            map(balls[i].squashTimer, squashTimeLength, squashTimeLength - 5, 1.25, 0.5), 
            map(balls[i].squashTimer, squashTimeLength, squashTimeLength - 5, 0.5, 1.8)
          );
        } else {
          scale(
            map(balls[i].squashTimer, squashTimeLength, 0, 0.5, 1), 
            map(balls[i].squashTimer, squashTimeLength, 0, 1.8, 1)
          );
        }
        
        balls[i].squashTimer--;
      }
    
      rotate(radians(2 * balls[i].pos.x + balls[i].angle));
    
      text(emojis[balls[i].hits], -30, 15);  // Need to hard-code values here to get the pivot just right.. :(
    pop();
    
    if (balls[i].pos.y > height || balls[i].kill) {
      /*if (balls[i].pos.y > height && !fallingSound.isPlaying() && random() > 0.5) {
        fallingSound.rate(random(1, 2));
        fallingSound.play();
      }*/
      balls.splice(i, 1);
    }
  }
}
​
​
function Ball(x, y) {
  this.pos = new p5.Vector(x, y);
  this.vel = new p5.Vector(random(2.5, 15), 2);
  this.acc = new p5.Vector();
  this.angle = random(360);
  this.hits = 0;
  this.squashTimer = -1;
  this.kill = false;
  
  this.sim = function() {
    this.acc.add(new p5.Vector(0, 0.7));
    
    let mousePos = new p5.Vector(mouseX, mouseY);
    let d = mousePos.dist(this.pos);
    
    if (d < 150) {
      let force = this.pos.copy();
      force.sub(mousePos);
      force.mult(0.02);
      this.acc.add(force);
    }
    
    this.vel.mult(0.99);
    
    this.vel.add(this.acc);
    this.pos.add(this.vel);
    this.acc.mult(0);
    
    for (let i = 0; i < grounds.length; i++) {
      let x = grounds[i][0];
      let y = grounds[i][1];
      
      if (this.pos.x > x) {
        if (this.pos.y > y - emojiRad) {
          this.pos.y = y - emojiRad;
          this.vel.y *= -1;
          this.squashTimer = squashTimeLength;
          
          if (this.hits < emojis.length - 1) {
            this.hits++;
            
            /*if (random() > 0.75) { // Only play it sometimes, otherwise.. jesus!
              if (random() > 0.5) {
                smackSound.rate(random(0.75, 2));
                smackSound.play();
              } else {
                gruntSound.rate(random(1.5, 2));
                gruntSound.play();
              }
            }*/
          } else {
            this.kill = true;
          }
        }
        
        break;
      }
    }
  }
}