Added darklands

src/items/InteractiveObject.h

@@ -13,6 +13,7 @@ namespace ZL {
 
 	struct LoadedGameObject {
 		std::shared_ptr<Texture> texture;
+		std::shared_ptr<Texture> textureDarklands;
 		VertexRenderStruct mesh;
 		std::string name;
 	};
@@ -52,6 +53,7 @@ namespace ZL {
 		void fadeTo(float targetAlpha, float durationSec, std::function<void()> onComplete = {});
 		void update(int64_t deltaMs);
 		void draw(Renderer& renderer) const;
+		void drawDarklands(Renderer& renderer) const;
 	};
 
 } // namespace ZL