def update_map_memory(t, age_map=True):
"""Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
def age_some_memdepthmap_on_nonfov_cells():
def update_map_memory(t, age_map=True):
"""Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
def age_some_memdepthmap_on_nonfov_cells():