Fixed lighting artifacts caused by untransformed normals, added 'Scene' for holding objects for rendering, added turn table models to menus using a scene, misc other changes.

lib/scenes/turn_table.rb

@@ -0,0 +1,40 @@
+class IMICFPS
+  class TurnTableScene < Scene
+    def setup
+      camera.field_of_view = 45
+      lights << (Light.new(id: OpenGL::GL_LIGHT1, position: Vector.new(30, 10.0, 30), diffuse: Color.new(0, 0, 0), specular: Color.new(0, 0, 0)))
+      lights << (Light.new(id: OpenGL::GL_LIGHT2, position: Vector.new(0, 10, 5), diffuse: Color.new(1.0, 1.0, 1.0), specular: Color.new(0, 0, 0)))
+
+      options = {
+        "character": 0.25,
+        "information_panel": 0.25,
+        "purchase_terminal": 0.35,
+        "door": 0.2,
+        "ttank": 0.13,
+        "alternate_tank": 0.065,
+        "tree": 0.08,
+        # "evergreen_tree": 0.08,
+        "power_plant": 0.025,
+        "war_factory": 0.03,
+        "randomish_terrain": 0.004,
+        "river_terrain": 0.004,
+      }
+      choice = options.keys.sample
+
+      @entity = Entity.new(manifest: Manifest.new(package: "base", name: choice), run_scripts: false)
+      @entity.scale = Vector.new(1, 1, 1) * options[choice]
+      @entity.position.x = 0.75
+      @entity.position.y = -0.5
+      @entity.position.z = -1.5
+      @entity.bind_model
+
+      entities << @entity
+
+      @max_tilt = 5.0
+    end
+
+    def update(dt)
+      @entity.orientation.y += 10 * dt
+    end
+  end
+end