// classes: those are in dancers.js.

// (Click the ">" icon next to "sketch.js"

//  above to see all files that make up this

//  sketch.)

​

// Add the name of all dancer classes in here:

let dancerClasses = [

  AngeloDancer,

  AugustDancer,

  FanDancer,

  HuberyDancer,

  IreneDancer,

  JohnDancer,

  JuliaDancer,

  KinseyDancer,

  MariaDancer,

  NikitaDancer,

  NuoDancer,

  RyanDancer,

  SabrinaDancer,

  ShavonneDancer,

  SissyDancer,

  SummerDancer,

  SylviaDancer,

];

​

let dancers = [];

let dancersUnsorted = [];

let floorY;

let nextDancerIndex = 0;

let smoke = [];

let strobe = false;

let strobePeriod = 4;

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  floorY = height * 0.6;

  dancerClasses = shuffle(dancerClasses);

}

​

function draw() {

  background(0);

​

  drawFloor();

  drawDancers();

  drawLights();

  drawSmoke();

​

  if (keyIsPressed) {

    if (key == 's') {  // smoke machine

      smoke.push(new Smoke(width, height));

      if (200 < smoke.length) {

        smoke.shift();

      }

    }

  }

}

​

function keyPressed() {

  if (key == 'a') {  // add a new dancer

    //let newDancer = new dancerClasses[nextDancerIndex](random(150, width-150), random(floorY, height));

    let newDancer = new dancerClasses[nextDancerIndex](mouseX, mouseY);

    console.log(newDancer.constructor.name + " entered!");

    dancers.push(newDancer);

    dancersUnsorted.push(newDancer);

    nextDancerIndex = (nextDancerIndex+1) % dancerClasses.length;

    sortDancersByY();

  } else if (key == 'd') {  // delete the oldest dancer

    if (0 < dancers.length) {

      let oldestDancer = dancersUnsorted.shift();

      console.log(oldestDancer.constructor.name + " left");

      // also delete the dancer from our sorted list of dancers

      for (let i=0; i < dancers.length; i++) {

        if (dancers[i] == oldestDancer) {

          dancers.splice(i, 1);

          break;

        }

      }

    }

  } else if (key == 'l') {  // toggle the lights

    strobe = !strobe;

  } else if (keyCode == DOWN_ARROW) {  // slower strobe

    strobePeriod += 1;

  } else if (keyCode == UP_ARROW) {  // faster strobe

    if (strobePeriod > 2) {

      strobePeriod -= 1;

    }

  }

}

​

function drawFloor() {

  push();

  let perspY = height * 0.3;

  let tileW = width/30;

​

  for (let x=-150; x <= width+150; x += tileW) {

    stroke(255);

    line(width/2, perspY, x, height);

  }

  let dy = 5;

  let y = floorY;

  while (y <= height) {

    line(0, y, width, y);

    dy *= 1.05;

    y += dy;

  }

​

  fill(0);

  noStroke();

  beginShape();

  vertex(-151, height);

  vertex(width/2, perspY);

  vertex(-151, perspY);

  endShape();

  beginShape();

  vertex(width+151, height);

  vertex(width/2+1, perspY);

  vertex(width+151, perspY);

  endShape();

  rect(0, 0, width, floorY);

  pop();

}

​

function drawDancers() {

  for (let i=0; i < dancers.length; i++) {

    push();

    dancers[i].update();

    dancers[i].display();

    // HACK: this is for push() without

    // a matching pop() in dancers

    while(0 < this._styles.length) {

      pop();

    }

    // reset any angleMode() to the default

    angleMode(RADIANS);

  }

}

​

function drawLights() {

  push();

  if (strobe && frameCount % strobePeriod == 0) {

    fill(255, 127);

    rect(0, 0, width, height);

  }

  pop();

}

​

function drawSmoke() {

  push();

  for (let i=0; i < smoke.length; i++) {

    smoke[i].update();

    smoke[i].display();

  }

  pop();

}

​

class Smoke {

  constructor(startX, startY) {

    this.x = startX;

    this.y = startY;

    this.speedX = random(-1, -10);

    this.speedY = random(0, -4);

    this.size = random(20, 100);

    this.opacity = random(25, 128);

  }

  update() {

    this.x += this.speedX;

    this.y += this.speedY;

    this.speedX *= 0.99;

    this.speedY *= 0.99;

    this.opacity -= 0.1;

  }

  display() {

    if (this.opacity <= 0) {

      return;

    }

    fill(255, this.opacity);

    noStroke();

    ellipse(this.x, this.y, this.size);

  }

}

​

function sortDancersByY() {

  dancers = dancers.sort(function(a, b) {

    if (a.y < b.y) {

      return -1

    } else {

      return 1;

    }

  });

}

​