map: Added reverse look-up-table for directions

diff --git a/src/map.s b/src/map.s
index 6146595ec4dfd96181538542ccbf2a87c7990d22..75dcfdc70068239f7b6531b5aba9d4838c51e37f 100644 (file)
--- a/src/map.s
+++ b/src/map.s
@@ -585,6 +585,11 @@ map_gen_next:
 
   ret
 
+
+  ; lut for reverse direction 
+map_gen_reverse_direction:
+.db SOUTH, WEST, NORTH, EAST, EXIT_SPECIAL
+
   ; link two rooms together
   ; by setting up the exit pointers 
   ; for a given direction