pull from adafruit master

adafruit_led_animation/animation/__init__.py

@@ -68,7 +68,7 @@ def __init__(self, pixel_object, speed, color, peers=None, paused=False, name=No
         self._time_left_at_pause = 0
         self._also_notify = []
         self.speed = speed  # sets _speed_ns
-        self.color = color  # Triggers _recompute_color
+        self.color = color  # Triggers _set_color
         self.name = name
         self.cycle_complete = False
         self.notify_cycles = 1
@@ -173,6 +173,7 @@ def fill(self, color):
         Fills the pixel object with a color.
         """
         self.pixel_object.fill(color)
+        self.pixel_object.show()
 
     @property
     def color(self):
@@ -187,8 +188,14 @@ def color(self, color):
             return
         if isinstance(color, int):
             color = (color >> 16 & 0xFF, color >> 8 & 0xFF, color & 0xFF)
+        self._set_color(color)
+
+    def _set_color(self, color):
+        """
+        Called after the color is changed, which includes at initialization.
+        Override as needed.
+        """
         self._color = color
-        self._recompute_color(color)
 
     @property
     def speed(self):
@@ -201,12 +208,6 @@ def speed(self):
     def speed(self, seconds):
         self._speed_ns = int(seconds * NANOS_PER_SECOND)
 
-    def _recompute_color(self, color):
-        """
-        Called if the color is changed, which includes at initialization.
-        Override as needed.
-        """
-
     def on_cycle_complete(self):
         """
         Called by some animations when they complete an animation cycle.

adafruit_led_animation/animation/blink.py

@@ -60,5 +60,5 @@ class Blink(ColorCycle):
     def __init__(self, pixel_object, speed, color, name=None):
         super().__init__(pixel_object, speed, [color, BLACK], name=name)
 
-    def _recompute_color(self, color):
+    def _set_color(self, color):
         self.colors = [color, BLACK]

adafruit_led_animation/animation/comet.py

@@ -92,10 +92,7 @@ def __init__(
 
     on_cycle_complete_supported = True
 
-    def _recompute_color(self, color):
-        self._comet_recompute_color(color)
-
-    def _comet_recompute_color(self, color):
+    def _set_color(self, color):
         self._comet_colors = [BLACK]
         for n in range(self._tail_length):
             self._comet_colors.append(

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()

adafruit_led_animation/animation/rainbowcomet.py

@@ -82,7 +82,7 @@ def __init__(
         self._colorwheel_offset = colorwheel_offset
         super().__init__(pixel_object, speed, 0, tail_length, reverse, bounce, name)
 
-    def _comet_recompute_color(self, color):
+    def _set_color(self, color):
         self._comet_colors = [BLACK]
         for n in range(self._tail_length):
             invert = self._tail_length - n - 1

adafruit_led_animation/animation/solid.py

@@ -58,5 +58,5 @@ class Solid(ColorCycle):
     def __init__(self, pixel_object, color, name=None):
         super().__init__(pixel_object, speed=1, colors=[color], name=name)
 
-    def _recompute_color(self, color):
+    def _set_color(self, color):
         self.colors = [color]

adafruit_led_animation/animation/sparkle.py

@@ -71,7 +71,7 @@ def __init__(self, pixel_object, speed, color, num_sparkles=1, name=None):
         self._pixels = []
         super().__init__(pixel_object, speed, color, name=name)
 
-    def _recompute_color(self, color):
+    def _set_color(self, color):
         half_color = tuple(color[rgb] // 4 for rgb in range(len(color)))
         dim_color = tuple(color[rgb] // 10 for rgb in range(len(color)))
         for pixel in range(len(self.pixel_object)):

adafruit_led_animation/animation/sparklepulse.py

@@ -80,6 +80,9 @@ def __init__(
         )
         self._generator = pulse_generator(self._period, self, dotstar_pwm=dotstar)
 
+    def _set_color(self, color):
+        self._color = color
+
     def draw(self):
         self._sparkle_color = next(self._generator)
         super().draw()

adafruit_led_animation/group.py

@@ -47,6 +47,8 @@
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_LED_Animation.git"
 
+from adafruit_led_animation.animation import Animation
+
 
 class AnimationGroup:
     """
@@ -158,7 +160,14 @@ def animate(self, show=True):
         if self._sync:
             result = self._members[0].animate(show=False)
             if result and show:
-                self._members[0].show()
+                last_strip = None
+                for member in self._members:
+                    if isinstance(member, Animation):
+                        if last_strip != member.pixel_object:
+                            member.pixel_object.show()
+                            last_strip = member.pixel_object
+                    else:
+                        member.show()
             return result
 
         return any([item.animate(show) for item in self._members])

adafruit_led_animation/sequence.py

@@ -172,7 +172,6 @@ def _advance(self):
             self.current_animation.reset()
         if self.auto_clear:
             self.current_animation.fill(self.clear_color)
-            self.current_animation.show()
         if self._random:
             self.random()
         else:
@@ -317,6 +316,6 @@ def on_cycle_complete(self):
         super().on_cycle_complete()
         self._running = False
 
-    def animate(self):
-        super().animate()
+    def animate(self, show=True):
+        super().animate(show)
         return self._running

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()