protected override void LoadContent()
{
_spriteBatch = new SpriteBatch(GraphicsDevice);
Content.Load<BitmapFont>("Fonts/courier-new-32");
_tiledMap = Content.Load<TiledMap>("Tilesets/level01");
_world = new CollisionWorld(new Vector2(0, 900));
_world.CreateGrid(_tiledMap.GetLayer<TiledTileLayer>("Tile Layer 1"));
var animationGroup = Content.Load<SpriteSheetAnimationGroup>("Sprites/zombie-animations");
_zombie = new Zombie(animationGroup);
var zombieActor = _world.CreateActor(_zombie);
zombieActor.Position = new Vector2(462.5f, 896f);
}