#define IS_DC_STEELWALL_2(e) ((e) >= EL_DC_STEELWALL_2_LEFT && \
(e) <= EL_DC_STEELWALL_2_SINGLE)
+// !!! IMPROVE THIS !!!
+#define IS_EM_ELEMENT(e) (map_element_EM_to_RND_cave(map_element_RND_to_EM_cave(e)) == (e))
+
#define MM_WALL_BASE(e) ((e) & 0xfff0)
#define MM_WALL_BITS(e) ((e) & 0x000f)