from enum import Enum


class Color(str, Enum):
    BLUE = 'BLUE'
    BLACK = 'BLACK'
    GREY = 'GREY'
    RED = 'RED'
    ORANGE = 'ORANGE'
    PURPLE = 'PURPLE'

    @classmethod
    def count(cls):
        return len(cls.__members__)


# A simple map from Color -> RGBA 4-Tuple
# Note: The color values in the tuple are not RGB, but
#       rather OpenGL percentage values for RGB.
COLOR_TO_RGBA = {
    Color.GREY: (0.827, 0.827, 0.826, 0.0),
    Color.BLUE: (0.118, 0.565, 1.0, 0.0),
    Color.BLACK: (0.0, 0.0, 0.0, 0.0),
    Color.RED: (1.0, 0.0, 0.0, 0.0),
    Color.ORANGE: (0.98, 0.625, 0.12, 0.0),
    Color.PURPLE: (0.60, 0.40, 0.70, 0.0)
}