'''
Mission 12 - Night Light
Objective 5 in CodeSpace
'''
from codex import *

ROOM = 15000

while True:
    value = light.read()

    if value < ROOM:
        scaled = (1 - value/ROOM) * 20
        level = int(scaled)
        pixels.fill(WHITE, brightness = level)
    else:
        pixels.fill(BLACK)