i-hardy/side-scroller

'use strict';

function GameController() {
  this.engine = Matter.Engine.create();
  this.world = this.engine.world;
  this.gameOver = false;
  this.eventManager = new EventManager(this.engine);
  this.worldBuilder = new WorldBuilder();
  this.score = new Score();
  this.player = new Player(Matter.Bodies.rectangle(30,0, worldOptions.playerSize, worldOptions.playerSize, { density:0.002, friction: 0.5, label: 'player' }));
  this.player.addParts(Matter.Bodies.circle(30,45,5, {density:0, friction:0.3, isSensor: true, label: 'playerSensor'}));
  this.soundEngine = new SoundEngine(this.player, this.score);
}

GameController.prototype.isGameOver = function () {
  return this.gameOver;
};

GameController.prototype.endGame = function () {
  this.gameOver = true;
  window.clearInterval(this.spriteLoop);
  window.clearInterval(this.gameLoop);
  this.soundEngine.killSounds();
  this.score.endBonus(this.worldBuilder.fallenPreciousObjectsRatio());
  this.renderer.receiveScore(this.score.showPoints());
  this.renderer.receiveDestructionPercentage(this.score.calculateDestructionPercentage());
};

GameController.prototype.collisionEvents = function () {
  this.eventManager.playerCollision(this.player, 'collisionEnd', 'notOnFloor');
  this.eventManager.playerCollision(this.player, 'collisionActive', 'onFloor');
  this.eventManager.collisionStarts(this, 'lifeAndDeathCollisionEvent');
  this.eventManager.collisionStarts(this.worldBuilder, 'objectCollisionEvent');
};

GameController.prototype.buildWorld = function () {
  this.worldBuilder.buildCompleteWorld();
  this.setWorldBounds();
  Matter.World.add(this.world, this.worldBuilder.getWorldBodies());
};

GameController.prototype.setWorldBounds = function () {
  this.world.bounds.min.x = 0;
  this.world.bounds.min.y = 0;
  this.world.bounds.max.x = worldOptions.width;
  this.world.bounds.max.y = worldOptions.height;
};

GameController.prototype.addGround = function () {
  var ground = Matter.Bodies.rectangle(worldOptions.width/2,
                                       worldOptions.height,
                                       worldOptions.width + 10, 20,
                                       { isStatic: true,
                                         label: 'floor'});
  Matter.World.add(this.world, [ground]);
};

GameController.prototype.addPlayer = function () {
  this.player.create(worldOptions.playerFriction);
  Matter.World.add(this.world, [this.player.getBodyObject()]);
};

GameController.prototype.calculateScore = function () {
  this.score.increase(this.worldBuilder.fallenObjectPreciousness());
  this.renderer.receiveScore(this.score.showPoints());
};

GameController.prototype.addEndBonus = function () {
  this.score.endBonus(this.worldBuilder.fallenPreciousObjectsRatio());
  this.renderer.receiveScore(this.score.showPoints());
  this.renderer.receiveDestructionPercentage(this.score.calculateDestructionPercentage());
};

GameController.prototype.ready = function () {
  this.collisionEvents();
  this.buildWorld();
  this.addGround();
  this.addPlayer();
};

GameController.prototype.render = function () {
  Matter.Engine.run(this.engine);
  this.renderer = new Renderer(this.player, this.world, this.soundEngine);
  this.renderer.updateScreen();
  var controller = this;
  this.spriteLoop = window.setInterval(function () {
    controller.renderer.spriteLoop();
  }, 1000/15);
  this.gameLoop = window.setInterval(function () {
    controller.renderer.gameLoop();
    controller.calculateScore();
  }, 1000/60);
};

GameController.prototype.returnPlayerToStart = function () {
  Matter.Body.setVelocity(this.player.getBodyObject(), {x: 0, y: 0});
  Matter.Body.setPosition(this.player.getBodyObject(), {x: 32, y: 0});
};

GameController.prototype.playerLosesLifeOnFloor = function () {
  this.player.decreaseLives();
  if (this.player.isDead()) {
    this.endGame();
  } else {
    this.returnPlayerToStart();
    this.renderer.returnViewToStart();
  }
};