+int map_element_BD_to_RND_cave(int element_bd)
+{
+ static unsigned short mapping_BD_to_RND[O_MAX_ALL];
+ static boolean mapping_initialized = FALSE;
+
+ if (!mapping_initialized)
+ {
+ int i;
+
+ // return "EL_UNKNOWN" for all undefined elements in mapping array
+ for (i = 0; i < O_MAX_ALL; i++)
+ mapping_BD_to_RND[i] = EL_UNKNOWN;
+
+ for (i = 0; bd_object_mapping_list[i].element_bd != -1; i++)
+ if (bd_object_mapping_list[i].is_rnd_to_bd_mapping)
+ mapping_BD_to_RND[bd_object_mapping_list[i].element_bd] =
+ bd_object_mapping_list[i].element_rnd;
+
+ mapping_initialized = TRUE;
+ }
+
+ if (element_bd < 0 || element_bd >= O_MAX_ALL)
+ {
+ Warn("invalid BD element %d", element_bd);
+
+ return EL_UNKNOWN;
+ }
+
+ return mapping_BD_to_RND[element_bd];
+}
+
+int map_element_BD_to_RND_game(int element_bd)