Gravity constant moved into constants.rb, camera can now report what it is looking at, entity has knowledge of camera now, AABB tree search can now use either BoundingBox or Ray colliders

lib/states/game_states/game.rb

@@ -1,5 +1,7 @@
 class IMICFPS
   class Game < GameState
+
+    attr_reader :collision_manager
     def setup
       @collision_manager = CollisionManager.new(game_state: self)
       @renderer = Renderer.new(game_state: self)
@@ -154,7 +156,7 @@ OpenGL Renderer: #{glGetString(GL_RENDERER)}
 OpenGL Version: #{glGetString(GL_VERSION)}
 OpenGL Shader Language Version: #{glGetString(GL_SHADING_LANGUAGE_VERSION)}
 
-Camera pitch: #{@camera.pitch.round(2)} Yaw: #{@camera.yaw.round(2)} Roll #{@camera.roll.round(2)}
+Camera pitch: #{@camera.orientation.z.round(2)} Yaw: #{@camera.orientation.y.round(2)} Roll #{@camera.orientation.x.round(2)}
 Camera X:#{@camera.position.x.round(2)} Y:#{@camera.position.y.round(2)} Z:#{@camera.position.z.round(2)}
 #{if @camera.entity then "Actor X:#{@camera.entity.position.x.round(2)} Y:#{@camera.entity.position.y.round(2)} Z:#{@camera.entity.position.z.round(2)}";end}
 Field Of View: #{@camera.field_of_view}