add example with more animations

examples/neopxl8_multiple_animations.py

@@ -0,0 +1,74 @@
+# SPDX-FileCopyrightText: 2024 Tim Cocks
+#
+# SPDX-License-Identifier: Unlicense
+
+import board
+import adafruit_ticks
+from adafruit_led_animation.animation.sparklepulse import SparklePulse
+from adafruit_led_animation.animation.comet import Comet
+from adafruit_led_animation.animation.chase import Chase
+from adafruit_led_animation.animation.pulse import Pulse
+from adafruit_led_animation.animation.sparkle import Sparkle
+from adafruit_led_animation.animation.rainbowchase import RainbowChase
+from adafruit_led_animation.animation.rainbowsparkle import RainbowSparkle
+from adafruit_led_animation.animation.rainbowcomet import RainbowComet
+from adafruit_led_animation.group import AnimationGroup
+from adafruit_led_animation.helper import PixelMap
+from adafruit_led_animation.color import PURPLE, WHITE, AMBER, JADE
+from adafruit_neopxl8 import NeoPxl8
+
+# Customize for your strands here
+num_strands = 8
+strand_length = 30
+first_led_pin = board.NEOPIXEL0
+
+num_pixels = num_strands * strand_length
+
+# Make the object to control the pixels
+pixels = NeoPxl8(
+    first_led_pin,
+    num_pixels,
+    num_strands=num_strands,
+    auto_write=False,
+    brightness=0.1,
+)
+
+
+def strand(n):
+    return PixelMap(
+        pixels,
+        range(n * strand_length, (n + 1) * strand_length),
+        individual_pixels=True,
+    )
+
+
+# Create the 8 virtual strands
+strands = [strand(i) for i in range(num_strands)]
+
+# For each strand, create a comet animation of a different color
+animations = [
+    Comet(strands[0], speed=0.01, color=PURPLE, tail_length=10, bounce=True),
+    Chase(strands[1], speed=0.1, size=3, spacing=6, color=WHITE),
+    Pulse(strands[2], speed=0.1, period=3, color=AMBER),
+    Sparkle(strands[3], speed=0.1, color=PURPLE, num_sparkles=10),
+    SparklePulse(strands[4], speed=0.1, period=3, color=JADE),
+    RainbowComet(strands[5], speed=0.1, tail_length=7, bounce=True),
+    RainbowChase(strands[6], speed=0.1, size=3, spacing=2, step=8),
+    RainbowSparkle(strands[7], speed=0.1, num_sparkles=15),
+]
+
+# Group them so we can run them all at once
+animations = AnimationGroup(*animations)
+
+# Run the animations and report on the speed in frame per second
+t0 = adafruit_ticks.ticks_ms()
+frame_count = 0
+while True:
+    animations.animate()
+    frame_count += 1
+    t1 = adafruit_ticks.ticks_ms()
+    dt = adafruit_ticks.ticks_diff(t1, t0)
+    if dt > 1000:
+        print(f"{frame_count * 1000/dt:.1f}fps")
+        t0 = t1
+        frame_count = 0