def mix(color, color1, weight=Pr(50)):
"""Mixes two colors together"""
p = weight.value / 100.0
w = p * 2 - 1
a = color.a - color1.a
w1 = ((w if w * a == -1 else (w + a) / (1 + w * a)) + 1) / 2.0
w2 = 1 - w1
r = color.r * w1 + color1.r * w2
g = color.g * w1 + color1.g * w2
b = color.b * w1 + color1.b * w2
a = color.a * p + color1.a * (1 - p)
return Color(r, g, b, a)
def grayscale(color):
"""Converts a color to grayscale."""
color = Color(color)
color.s = 1
return color
def spinin(color, value=Pr(10)):
"""Changes the hue of a color."""
color = Color(color)
color.h += value
return color
def hsla(h, s, l, a):
"""Converts an Hsla(h, s, l) quadruplet into a color."""
return Color.from_hsl(h, s, l, a)
def hsl(h, s, l):
"""Converts an Hsl(h, s, l) triplet into a color."""
return Color.from_hsl(h, s, l)
def rgba(r, g, b, a):
"""Converts an Rgba(r, g, b, a) quadruplet into a color."""
return Color(r, g, b, a)
def complement(color):
"""Returns the complement of a color."""
color = Color(color)
return color
def darken(color, value=Pr(10)):
"""Makes a color darker."""
color = Color(color)
color.l -= value
return color
def fadeout(color, value=Pr(10)):
"""Add or change an alpha layer for any color value."""
color = Color(color)
color.a -= value
return color
def grayscale(color):
"""Converts a color to grayscale."""
color = Color(color)
color.s = 1
return color
def desaturate(color, value=Pr(10)):
"""Makes a color less saturated."""
color = Color(color)
color.s -= value
return color
def rgb(r, g, b):
"""Converts an Rgb(r, g, b) triplet into a color."""
return Color(r, g, b)
def saturate(color, value=Pr(10)):
"""Makes a color more saturated."""
color = Color(color)
color.s += value
return color
def hsl(h, s, l):
"""Converts an Hsl(h, s, l) triplet into a color."""
return Color.from_hsl(h, s, l)
def invert(color):
"""Returns the inverse of a color."""
color = Color(color)
return color
def hsla(h, s, l, a):
"""Converts an Hsla(h, s, l) quadruplet into a color."""
return Color.from_hsl(h, s, l, a)
def lighten(color, value=Pr(10)):
"""Makes a color lighten."""
color = Color(color)
color.l += value
return color