# This all-too-precise replica of the original C code misses iter_limit().
-def update_map_memory(t):
+def update_map_memory(t, age_map=True):
"""Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
if not t["T_MEMMAP"]:
t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
if " " == chr(t["T_MEMMAP"][pos]):
t["T_MEMMAP"][pos] = world_db["MAP"][pos]
continue
- if ord('0') <= t["T_MEMDEPTHMAP"][pos] \
+ if age_map and ord('0') <= t["T_MEMDEPTHMAP"][pos] \
and ord('9') > t["T_MEMDEPTHMAP"][pos] \
and not rand.next() % (2 ** (t["T_MEMDEPTHMAP"][pos] - 48)):
t["T_MEMDEPTHMAP"][pos] += 1