/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
#region textures, fonts, and shaders
font_Arial = Content.Load <SpriteFont>("Arial");
font_Arial_Bold = Content.Load <SpriteFont>("Arial_Bold");
zoomEffect = Content.Load <Effect>("Effects/Zoom");
playerTexture = Content.Load <Texture2D>("Player/Player");
debugTexture = Content.Load <Texture2D>("Debug");
mouseTexture = Content.Load <Texture2D>("Gui/MousePointer");
BuildUi = Content.Load <Texture2D>("Gui/build_overlay");
BuildUiPreview = Content.Load <Texture2D>("Gui/PreviewBorder");
BuildUiFloor = Content.Load <Texture2D>("Gui/build_overlay_floor");
BuildUiWall = Content.Load <Texture2D>("Gui/build_overlay_wall");
BuildUiObject = Content.Load <Texture2D>("Gui/build_overlay_object");
selectedFloorTile = GetFloorID <AirFloor>();
selectedWallTile = GetWallID <AirWall>();
selectedObjectTile = GetObjectID <AirObject>();
TileHandler.LoadTileTextures();
NpcHandler.LoadNpcTextures();
#endregion
mainWorld = new World();
mainWorld.Initialize();
base.LoadContent();
}