few additional notes

src/components/enemy.h

@@ -3,8 +3,9 @@
 
 namespace TL
 {
-	class Enemy : public Component
-	{
-
-	};
+	// I just needed a way to track whether any enemies were still
+	// in the scene or not, so Locked Doors could open. The easiest
+	// way was to add an Enemy component, and check if there are any
+	// in the scene.
+	class Enemy : public Component { };
 }

src/components/player.cpp

@@ -244,6 +244,10 @@ void Player::update()
 
 			// hack:
 			// destroy orb
+			// ideally we would have an "attack" component that the orb could
+			// subscribe to, and delete itself when it hits the player. since
+			// the orb currently has no way to know if it hit the player, we
+			// have to add this ugly hack!
 			if (hit->get<Orb>())
 				hit->entity()->destroy();
 		}