Circuit Playground Express Dragon Sign, cap touch and neopixel fire

DragonSafetySign.py

import time
import board
import neopixel
import touchio
import audioio
from digitalio import DigitalInOut, Direction
import random

heat = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
cooldown = 0
NUM_LEDS = 10

touch2 = touchio.TouchIn(board.A2)
touch3 = touchio.TouchIn(board.A3)
touch4 = touchio.TouchIn(board.A4)
touch5 = touchio.TouchIn(board.A5)
touch6 = touchio.TouchIn(board.A6)
touch7 = touchio.TouchIn(board.A7)

# enable the speaker
spkrenable = DigitalInOut(board.SPEAKER_ENABLE)
spkrenable.direction = Direction.OUTPUT
spkrenable.value = True
 
# The wav files
audiofiles = ["CatEvil.wav", "drum_cowbell.wav"]
a = audioio.AudioOut(board.A0)
 
bling = .1
pixelpin = board.A1
pixels = neopixel.NeoPixel(pixelpin, 10, brightness=bling)

pixelpinX = board.NEOPIXEL
pixelsX = neopixel.NeoPixel(pixelpinX, 10, brightness=bling)

pixels.fill((0, 0, 255))
pixels.show()
pixelsX.fill((0, 0, 255))
pixelsX.show()
time.sleep(0.5)
pixels.fill((0, 0, 0))
pixels.show()
pixelsX.fill((0, 0, 0))
pixelsX.show()
time.sleep(0.5)

def play_file(filename):
    print("playing file " + filename)
    f = open(filename, "rb")
    wave = audioio.WaveFile(f)
    a.play(wave)

# Fire code adapted from arduino Kriegsman Fire2012 (tweaking4all.com)

def setPixelHeatColor(Pixel, temperature):
    # Scale 'heat' down from 0-255 to 0-191
    t192 = round((temperature/255.0)*191)
 
    # calculate ramp up from
    heatramp = t192 & 0x3F  # 0..63
    heatramp <<= 2  # scale up to 0..252
 
    # figure out which third of the spectrum we're in:
    if t192 > 0x80:                 # hottest
        pixels[Pixel] = (255, 255, heatramp)
    else:
        if t192 > 0x40:            # middle
            pixels[Pixel] = (255, heatramp, 0)
        else:                       # coolest
            pixels[Pixel] = (heatramp, 0, 0)

def Fire(Cooling, Sparking):
    # Step 1.  Cool down every cell a little
    for i in range(0, NUM_LEDS, 1):
        cooldown = random.randint(0, NUM_LEDS * 2)
    
        if cooldown > heat[i]:
            heat[i] = 0
        else:
            heat[i] = heat[i]-cooldown
  
    # Step 2.  Heat from each cell drifts 'up' and diffuses a little
        for k in range(NUM_LEDS - 1, 2, -1):
            heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3

    # Step 3.  Randomly ignite new 'sparks' near the bottom
        if random.randint(0, 255) < Sparking:
            y = random.randint(0, 9)
            # heat[y] = heat[y] + random.randint(160, 255)
            heat[y] = random.randint(160, 255)
  
    # Step 4.  Convert heat to LED colors
        for j in range(0, NUM_LEDS, 1):
            setPixelHeatColor(j, heat[j])

    pixels.show()
    for l in range(0,9):
        heat[l] = 0

while True:
    pixels[0] = (50, 50, 50)
    pixelsX.fill((50, 50, 50))
    pixels.show()
    pixelsX.show()
    if touch2.value:
        print("Touched TAIL")
        pixels[0] = (200, 0, 255)
        time.sleep(0.1)
    if touch4.value:
        print("Touched FRONTCLAW")
        play_file(audiofiles[0])
        pixels[0] = (200, 69, 0)
        time.sleep(0.1)
    if touch3.value:
        print("Touched BACKCLAW")
        play_file(audiofiles[0])
        pixels[0] = (255, 160, 0)
        time.sleep(0.1)
    if touch5.value:
        print("Touched WING")
        pixels[0] = (255, 0, 0)
        play_file(audiofiles[0])
        pixelsX.fill((255, 0, 0))
        pixels.fill((0, 0, 0))
        Fire(random.randint(50, 70), random.randint(120, 130))  # Fire
        Fire(random.randint(50, 70), random.randint(120, 130))  # Fire
        Fire(random.randint(50, 70), random.randint(130, 140))  # Fire
        time.sleep(0.1)       
        pixels.fill((0, 0, 0))
        pixelsX.fill((0, 0, 0))
        time.sleep(0.1)