protected override void LoadContent()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
var ballTexture = Content.Load <Texture2D>(ASSET_NAME_BALL);
_ball = new BallEntity(ballTexture, new Vector2(BALL_POS_X, BALL_POS_Y));
_ballManager = new BallManager(_ball);
var groundTexture = Content.Load <Texture2D>(ASSET_NAME_GROUND);
_groundManager = new GroundManager(groundTexture, _ball, _entityManager);
_ballInputController = new BallInputController(_ball);
_scoreBoardFont = Content.Load <SpriteFont>(ASSET_NAME_SCORE_BOARD_FONT);
_scoreBoard = new ScoreBoardEntity(_scoreBoardFont, new Vector2(SCORE_BOARD_POS_X, SCORE_BOARD_POS_Y), _ball);
var wallTexture = Content.Load <Texture2D>(ASSET_NAME_WALL);
_wallManager = new WallManager(wallTexture, _ball, _scoreBoard, _entityManager);
_coinPickupSoundEffect = Content.Load <SoundEffect>(ASSET_NAME_COIN_PICKUP);
_rotatingCoinAnimation = new TextureAnimation();
_coin0 = Content.Load <Texture2D>(ASSET_NAME_COIN_0);
_coin1 = Content.Load <Texture2D>(ASSET_NAME_COIN_1);
_coin2 = Content.Load <Texture2D>(ASSET_NAME_COIN_2);
_coin3 = Content.Load <Texture2D>(ASSET_NAME_COIN_3);
_coin4 = Content.Load <Texture2D>(ASSET_NAME_COIN_4);
_rotatingCoinAnimation.AddFrame(_coin0, ROTATING_COIN_ANIMATION_FRAME_DURATION);
_rotatingCoinAnimation.AddFrame(_coin1, ROTATING_COIN_ANIMATION_FRAME_DURATION * 2);
_rotatingCoinAnimation.AddFrame(_coin2, ROTATING_COIN_ANIMATION_FRAME_DURATION * 3);
_rotatingCoinAnimation.AddFrame(_coin3, ROTATING_COIN_ANIMATION_FRAME_DURATION * 4);
_rotatingCoinAnimation.AddFrame(_coin4, ROTATING_COIN_ANIMATION_FRAME_DURATION * 5);
_rotatingCoinAnimation.Play();
_coinManager = new CoinManager(_coin0, _ball, _scoreBoard, _entityManager, _coinPickupSoundEffect,
_rotatingCoinAnimation);
_entityManager.AddEntity(_ball);
_entityManager.AddEntity(_ballManager);
_entityManager.AddEntity(_groundManager);
_entityManager.AddEntity(_scoreBoard);
_entityManager.AddEntity(_wallManager);
_entityManager.AddEntity(_coinManager);
_groundManager.Initialize();
}