private onExplode_(projectile : Projectile, hitPlayer : Player | null) {
    let animation = this.game_.getResourceManager().getSpriteSheet('explode2').getAnimation(0);
    new Effect(this.game_, animation, this.bomb_.getPosition(), Vector.ZERO);

    let viewport = this.game_.getViewport();
    if (viewport.contains(this.bomb_.getPosition())) {
      this.game_.getResourceManager().playSound('explodeBomb');
    }
  }

  constructor(game : Game, burst : Burst) {
    super(game.simulation);

    this.game_ = game;
    this.burst_ = burst;
    this.activeAnimation_ = game.getResourceManager().getSpriteSheet('bullets').getAnimation(9);
    this.activeAnimation_.setRepeatCount(-1);
    this.inactiveAnimation_ = game.getResourceManager().getSpriteSheet('bullets').getAnimation(4);
    this.inactiveAnimation_.setRepeatCount(-1);

    Listener.add(this.burst_, 'explode', this.onExplode_.bind(this));

    game.getPainter().registerDrawable(Layer.PROJECTILES, this);
  }

  constructor(game : Game, bullet : Bullet) {
    super(game.simulation);

    let level = bullet.getLevel();

    this.game_ = game;
    this.bullet_ = bullet;
    this.animation_ = game.getResourceManager().getSpriteSheet('bullets').getAnimation(level);
    this.animation_.setRepeatCount(-1);
    this.bouncingAnimation_ = game.getResourceManager().getSpriteSheet('bullets').getAnimation(5 + level);
    this.bouncingAnimation_.setRepeatCount(-1);

    Listener.add(this.bullet_, 'explode', this.onExplode_.bind(this));
    game.getPainter().registerDrawable(Layer.PROJECTILES, this);
  }

  constructor(game : Game, bomb : Bomb) {
    super(game.simulation);

    let level = bomb.getLevel();

    this.game_ = game;
    this.bomb_ = bomb;
    this.animation_ = game.getResourceManager().getSpriteSheet((bomb.isMine()) ? 'mines' : 'bombs').getAnimation(level);
    this.animation_.setRepeatCount(-1);
    this.bouncingAnimation_ = game.getResourceManager().getSpriteSheet('bombs').getAnimation(level + 8);
    this.bouncingAnimation_.setRepeatCount(-1);

    Listener.add(this.bomb_, 'explode', this.onExplode_.bind(this));
    Listener.add(this.bomb_, 'explode_jitter', this.onJitter_.bind(this));

    game.getPainter().registerDrawable(Layer.PROJECTILES, this);
  }

  constructor(game : Game, repel : Repel) {
    super(game.simulation);

    this.game_ = game;
    this.repel_ = repel;
    this.animation_ = game.getResourceManager().getSpriteSheet('repel').getAnimation(0);

    game.getPainter().registerDrawable(Layer.EFFECTS, this);
  }

  constructor(game : Game) {
    this.game_ = game;
    this.resourceManager_ = game.getResourceManager();
    this.player_ = game.simulation.playerList.localPlayer;
    this.statusHudImage_ = this.resourceManager_.getImage('statusHud');
    this.energyFontImage_ = this.resourceManager_.getImage('energyFont');
    this.ledFontImage_ = this.resourceManager_.getImage('ledFont');

    game.getPainter().registerDrawable(Layer.HUD, this);
  }

  public advanceTime() {
    // First advance and drop the trail.
    if (!this.bomb_.isMine() && Labs.BOMB_TRAILS) {
      let animation = this.game_.getResourceManager().getSpriteSheet('bombTrails').getAnimation(this.bomb_.getLevel());
      new Effect(this.game_, animation, this.bomb_.getPosition(), Vector.ZERO, Layer.TRAILS);
    }

    this.animation_.update();
    this.bouncingAnimation_.update();
  }

  constructor(game : Game) {
    super(game.simulation),

    this.resourceManager_ = game.getResourceManager();
    this.map_ = game.simulation.map;
    this.animations_ = [];
    this.tileset_ = this.resourceManager_.getImage('tileset');

    game.getPainter().registerDrawable(Layer.MAP, this);
  }

  constructor(game : Game, localPlayer : LocalPlayer) {
    super(game, localPlayer, Layer.LOCAL_PLAYER);

    this.resourceManager_ = game.getResourceManager();
    this.localPlayer_ = localPlayer;

    Listener.add(localPlayer, 'collect_prize', this.collectPrize_.bind(this));
    Listener.add(localPlayer, 'bounce', this.bounce_.bind(this));
    Listener.add(localPlayer, 'multifire', this.toggleMultifire_.bind(this));
    Listener.add(localPlayer, 'capture_flag', this.captureFlag_.bind(this));
    Listener.add(localPlayer, 'weapon_fired', this.weaponFired_.bind(this));
  }

  public render(viewport : Viewport) {
    if (!this.bullet_.isValid()) {
      this.invalidate();
      return;
    }

    if (Labs.BULLET_TRAILS) {
      let animation = this.game_.getResourceManager().getSpriteSheet('bulletTrails').getAnimation(3 + this.bullet_.getLevel());
      new Effect(this.game_, animation, this.bullet_.getPosition(), Vector.ZERO, Layer.TRAILS);
    }

    let dimensions = viewport.getDimensions();
    let x = Math.floor(this.bullet_.getPosition().x - dimensions.left - this.animation_.width / 2);
    let y = Math.floor(this.bullet_.getPosition().y - dimensions.top - this.animation_.height / 2);
    let animation = this.bullet_.isBouncing() ? this.bouncingAnimation_ : this.animation_;

    animation.render(viewport.getContext(), x, y);
  }