Merge pull request #51 from cjsieh/customcolorchase

Customcolorschase

Author: kattni

adafruit_led_animation/animation/customcolorchase.py

@@ -0,0 +1,85 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2019-2020 Roy Hooper
+# Copyright (c) 2020 Kattni Rembor for Adafruit Industries
+# Copyright (c) 2020 Connie Sieh
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+"""
+`adafruit_led_animation.animation.customcolorchase`
+================================================================================
+
+Custom color chase animation for CircuitPython helper library for LED animations.
+
+* Author(s): Roy Hooper, Kattni Rembor, Connie Sieh
+
+Implementation Notes
+--------------------
+
+**Hardware:**
+
+* `Adafruit NeoPixels <https://www.adafruit.com/category/168>`_
+* `Adafruit DotStars <https://www.adafruit.com/category/885>`_
+
+**Software and Dependencies:**
+
+* Adafruit CircuitPython firmware for the supported boards:
+  https://circuitpython.org/downloads
+
+
+"""
+
+from adafruit_led_animation.animation.chase import Chase
+from adafruit_led_animation.color import RAINBOW
+
+
+class CustomColorChase(Chase):
+    """
+    Chase pixels in one direction, like a theater marquee with Custom Colors
+
+    :param pixel_object: The initialised LED object.
+    :param float speed: Animation speed rate in seconds, e.g. ``0.1``.
+    :param colors: Animation colors in list of `(r, g, b)`` tuple, or ``0x000000`` hex format
+    :param size: Number of pixels to turn on in a row.
+    :param spacing: Number of pixels to turn off in a row.
+    :param reverse: Reverse direction of movement.
+    """
+
+    # pylint: disable=too-many-arguments
+    def __init__(
+        self,
+        pixel_object,
+        speed,
+        size=2,
+        spacing=3,
+        reverse=False,
+        name=None,
+        colors=RAINBOW,
+    ):
+        self._num_colors = len(colors)
+        self._colors = colors
+        self._color_idx = 0
+        super().__init__(pixel_object, speed, 0, size, spacing, reverse, name)
+
+    def bar_color(self, n, pixel_no=0):
+        return self._colors[self._color_idx - (n % len(self._colors))]
+
+    def on_cycle_complete(self):
+        self._color_idx = (self._color_idx + self._direction) % len(self._colors)
+        super().on_cycle_complete()

examples/led_animation_all_animations.py

@@ -21,6 +21,7 @@
 from adafruit_led_animation.animation.solid import Solid
 from adafruit_led_animation.animation.colorcycle import ColorCycle
 from adafruit_led_animation.animation.rainbow import Rainbow
+from adafruit_led_animation.animation.customcolorchase import CustomColorChase
 from adafruit_led_animation.sequence import AnimationSequence
 from adafruit_led_animation.color import PURPLE, WHITE, AMBER, JADE, MAGENTA, ORANGE
 
@@ -43,6 +44,9 @@
 rainbow_comet = RainbowComet(pixels, speed=0.1, tail_length=7, bounce=True)
 rainbow_chase = RainbowChase(pixels, speed=0.1, size=3, spacing=2, step=8)
 rainbow_sparkle = RainbowSparkle(pixels, speed=0.1, num_sparkles=15)
+custom_color_chase = CustomColorChase(
+    pixels, speed=0.1, size=2, spacing=3, colors=[ORANGE, WHITE, JADE]
+)
 
 
 animations = AnimationSequence(
@@ -57,6 +61,7 @@
     rainbow_comet,
     sparkle_pulse,
     rainbow_chase,
+    custom_color_chase,
     advance_interval=5,
     auto_clear=True,
 )

examples/led_animation_customcolorchase.py

@@ -0,0 +1,66 @@
+"""
+This example displays custom color chase animations in sequence, at a six second interval.
+
+For NeoPixel FeatherWing. Update pixel_pin and pixel_num to match your wiring if using
+a different form of NeoPixels.
+
+This example may not work on SAMD21 (M0) boards.
+"""
+import board
+import neopixel
+
+from adafruit_led_animation.animation.customcolorchase import CustomColorChase
+from adafruit_led_animation.sequence import AnimationSequence
+
+# colorwheel only needed for rainbowchase example
+from adafruit_led_animation.color import colorwheel
+
+# Colors for customcolorchase examples
+from adafruit_led_animation.color import PINK, GREEN, RED, BLUE
+
+# Update to match the pin connected to your NeoPixels
+pixel_pin = board.D5
+# Update to match the number of NeoPixels you have connected
+pixel_num = 30
+brightness = 0.3
+
+pixels = neopixel.NeoPixel(
+    pixel_pin, pixel_num, brightness=brightness, auto_write=False
+)
+
+# colors default to RAINBOW as defined in color.py
+custom_color_chase_rainbow = CustomColorChase(pixels, speed=0.1, size=2, spacing=3)
+custom_color_chase_rainbow_r = CustomColorChase(
+    pixels, speed=0.1, size=3, spacing=3, reverse=True
+)
+
+# Example with same colors as RainbowChase
+steps = 30
+# This was taken from rainbowchase.py
+rainbow_colors = [colorwheel(n % 256) for n in range(0, 512, steps)]
+# Now use rainbow_colors with CustomColorChase
+custom_color_chase_rainbowchase = CustomColorChase(
+    pixels, speed=0.1, colors=rainbow_colors, size=2, spacing=3
+)
+
+custom_color_chase_bgp = CustomColorChase(
+    pixels, speed=0.1, colors=[BLUE, GREEN, PINK], size=3, spacing=2
+)
+
+# Can use integer values for color, 0 is black
+custom_color_chase_br = CustomColorChase(
+    pixels, speed=0.1, colors=[BLUE, 0, RED, 0], size=2, spacing=0
+)
+
+animations = AnimationSequence(
+    custom_color_chase_rainbow,
+    custom_color_chase_rainbow_r,
+    custom_color_chase_rainbowchase,
+    custom_color_chase_bgp,
+    custom_color_chase_br,
+    advance_interval=6,
+    auto_clear=True,
+)
+
+while True:
+    animations.animate()