custom_starlight.py

from collections import defaultdict
import colorsys
import random
import time
import threading

from openrazer.client import DeviceManager
from openrazer.client import constants as razer_constants

# Create a DeviceManager. This is used to get specific devices
device_manager = DeviceManager()


print("Found {} Razer devices".format(len(device_manager.devices)))

devices = device_manager.devices
for device in devices:
    if not device.fx.advanced:
        print("Skipping device " + device.name + " (" + device.serial + ")")
        devices.remove(device)

print()

# Disable daemon effect syncing.
# Without this, the daemon will try to set the lighting effect to every device.
device_manager.sync_effects = False

# Helper function to generate interesting colors


def random_color():
    rgb = colorsys.hsv_to_rgb(random.uniform(0, 1), random.uniform(0.5, 1), 1)
    return tuple(map(lambda x: int(256 * x), rgb))


# Handle the startlight effect for a single key
def starlight_key(device, row, col, active):
    color = random_color()

    hue = random.uniform(0, 1)
    start_time = time.time()

    fade_time = 2

    elapsed = 0
    while elapsed < fade_time:
        elapsed = time.time() - start_time
        value = 1 - elapsed / fade_time
        rgb = colorsys.hsv_to_rgb(hue, 1, value)
        color = tuple(map(lambda x: int(256 * x), rgb))

        device.fx.advanced.matrix[row, col] = color

        value -= 0.01
        # print(device, color)
        time.sleep(1 / 60)

    device.fx.advanced.matrix[row, col] = (0, 0, 0)
    active[(row, col)] = False


# Handle the startlight effect for an entire device
def starlight_effect(device):
    rows, cols = device.fx.advanced.rows, device.fx.advanced.cols
    active = defaultdict(bool)

    device.fx.advanced.matrix.reset()
    device.fx.advanced.draw()

    while True:
        row, col = random.randrange(rows), random.randrange(cols)

        if not active[(row, col)]:
            active[(row, col)] = True
            threading.Thread(target=starlight_key, args=(device, row, col, active)).start()

        time.sleep(0.1)


# Spawn a manager thread for each device and wait on all of them.
threads = []
for device in devices:
    t = threading.Thread(target=starlight_effect, args=(device,), daemon=True)
    t.start()
    threads.append(t)


# If there are still threads, update each device.
while any(t.isAlive() for t in threads):
    for device in devices:
        device.fx.advanced.draw()
    time.sleep(1 / 60)