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Switch loop direction from count-up to count-down 

Also:
 - Let countdown() go negative
 - Don't update neopixels when time is negative
 - Print current time to console every update period
 - Set colormode="fill" as default in colorizer()
This commit is contained in:
David Thurstenson 2022-10-10 00:17:52 -05:00
parent 7097136a57
commit fb617a5eec
1 changed files with 17 additions and 7 deletions
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24
colorbar-fastloop.py
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@ -43,7 +43,7 @@ pixels.show()
# or red parameters should be set to True. Behavior when # or red parameters should be set to True. Behavior when
# red and yellow are both set to True depends on how the # red and yellow are both set to True depends on how the
# colormode is configured. # colormode is configured.
def colorizer(pxnum, colormode, yellow=False, red=False): def colorizer(pxnum, colormode="fill", yellow=False, red=False):
# Every pixel from lowest to currently highest # Every pixel from lowest to currently highest
if colormode == "fill": if colormode == "fill":
if red: if red:
@ -86,8 +86,8 @@ def countdown(
# Init the update interval tracking variable # Init the update interval tracking variable
last_update_time = -1 last_update_time = -1
# Init the elapsed time variable # Init the current time variable
elapsed_time = 0 current_time = seconds
# This begins what I like to call the "Are We There Yet?" # This begins what I like to call the "Are We There Yet?"
# loop. Instead of making the script wait for an interval # loop. Instead of making the script wait for an interval
@ -113,11 +113,13 @@ def countdown(
# Loop over every pixel ID that should be lit # Loop over every pixel ID that should be lit
# based on the elapsed time # based on the elapsed time
for pixel in range(round(num_pixels * (elapsed_time / seconds))): for pixel in range(round(num_pixels * ((seconds - current_time) / seconds))):
# Set pixel color stuff # Set pixel color stuff
if elapsed_time >= seconds - redtime: if current_time < 0:
pass
elif current_time <= redtime:
colorizer(pixel, colormode, red=True) colorizer(pixel, colormode, red=True)
elif elapsed_time >= seconds - yellowtime: elif current_time <= yellowtime:
colorizer(pixel, colormode, yellow=True) colorizer(pixel, colormode, yellow=True)
else: else:
colorizer(pixel, colormode) colorizer(pixel, colormode)
@ -126,4 +128,12 @@ def countdown(
pixels.show() pixels.show()
# Increment the elapsed time variable # Increment the elapsed time variable
elapsed_time += update_interval current_time -= update_interval
# Massage the current_time seconds count into human-readable minutes:seconds
display_time = divmod(abs(current_time), 60)
if current_time < 0:
display_time_sign = "-"
else:
display_time_sign = " "
print("current time: " + display_time_sign + str(display_time[0]) + ":" + str(display_time[1]))