Added MirrorSystem

This is really just for letting one sprite mirror another's movement and animation. I tried doing it in the BehaviourSystem, but you get stuttering if you do it earlier in the loop than the CharacterSystem, so I ended up having to make a new system just for this thing that will not happen very often.

1 files changed, 3 insertions, 0 deletions

@@ -32,6 +32,9 @@ struct Prototype {
   int movementSpeed = -1;
   std::string enclosureZone;
   bool masked = false;
+  MirrorType mirrorType = MirrorType::None;
+  int mirrorAxis = 0;
+  std::string spriteToMirror;
 };
 
 struct Trigger {