Major refactoring - internal server state machine implemented

resources/start_battle_zone.lua

@@ -3,6 +3,9 @@
 -- uni_exterior level with static objects and navigation only.
 -- ============================================
 
+function callback_init_location()
+end
+
 function callback_enter_location()
 end
 
@@ -10,6 +13,7 @@ function callback_exit_location()
 end
 
 game_api.set_location_callbacks(
+    callback_init_location,
     callback_enter_location,
     callback_exit_location
 )