def assign_value(x, y, z, values, save_file):
    '''Assign an index value to a location in mcmap.

    If the index is outside the bounds of the map, return None.  If the
    assignment succeeds, return True.
    '''
    if y > 255:
        return None
    result = save_file.set_block(x, y, z, values)
    if LIGHTINGFIX:
        relight_master.add(x, z)
    return result
Assign an index value to a location in mcmap.

    If the index is outside the bounds of the map, return None.  If the
    assignment succeeds, return True.
    
stock-filters/Forester.py