'''
Mission 12 - Night Light
Spicy Solution
The remix gives has 5 levels for the night light.
Set values for four different light intensities.
Use multiple branches in the if statement for each intensity.
The order of the branches is very important! If using <, start
with smallest and go to largest. 
   NOTE: This solution uses the math for dim level for each branch.
   This is optional. Students could just set the color and brightness.
   The choice of displaying an image is also optional.
'''
from codex import *
from time import sleep

# select a value slightly under the 
# room light readings 
BRIGHT = 7000
ROOM = 5500
SEMI_DARK = 3000
DARK = 800

while True:
    value = light.read()
    # darkest value
    if value < DARK:
        scaled = (1 - value / ROOM) * 20
        level = int(scaled)
        pixels.fill(WHITE, brightness = level)
        display.show(pics.ASLEEP)
    # next darkest value
    elif value < SEMI_DARK:
        scaled = (1 - value / ROOM) * 20
        level = int(scaled)
        pixels.fill(YELLOW, brightness = level)
        display.show(pics.HEART_SMALL)
    # room value
    elif value < ROOM:
        scaled = (1 - value / ROOM) * 20
        level = int(scaled)
        pixels.fill(GREEN, brightness = level)
        display.show(pics.HAPPY)
    # brighter than room value
    elif value < BRIGHT: 
        scaled = (1 - value / ROOM) * 20
        level = int(scaled)
        pixels.fill(RED, brightness = level)  
        display.show(pics.TARGET)      
    # very bright (flashlight)
    else:
        pixels.fill(BLACK)
        display.show(pics.HOUSE)