# SPDX-FileCopyrightText: 2020 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

"""
`adafruit_led_animation.animation.blink`
================================================================================

Blink animation for CircuitPython helper library for LED animations.

* Author(s): Kattni Rembor

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.colorcycle import ColorCycle
from adafruit_led_animation.color import BLACK


class Blink(ColorCycle):
    """
    Blink a color on and off.

    :param pixel_object: The initialised LED object.
    :param float speed: Animation speed in seconds, e.g. ``0.1``.
    :param color: Animation color in ``(r, g, b)`` tuple, or ``0x000000`` hex format.
    :param background_color: Background color in ``(r, g, b)`` tuple, or ``0x000000``
     hex format. Defaults to BLACK.
    :param name: A human-readable name for the Animation. Used by the string function.
    """

    def __init__(self, pixel_object, speed, color, background_color=BLACK, name=None):
        self._background_color = background_color
        super().__init__(pixel_object, speed, [color, background_color], name=name)

    def _set_color(self, color):
        self.colors = [color, self._background_color]
