+ def __init__(self, hue, rect) :
+ pygame.sprite.Sprite.__init__(self)
+ sur = pygame.surface.Surface(rect.size)
+ rgba = hls_to_rgba_8bits(hue, OFF_LUMINANCE, OFF_SATURATION)
+ sur.fill(rgba)
+ self.stateOff = sur
+
+ topRgba = hls_to_rgba_8bits(hue, ON_TOP_LUMINANCE, ON_SATURATION)
+ bottomRgba = hls_to_rgba_8bits(hue, ON_BOTTOM_LUMINANCE, ON_SATURATION)
+ size = rect.inflate(2*rect.width,0).size
+ self.stateOn = gradients.vertical(size, topRgba, bottomRgba)
+
+ self.image = self.stateOff
+ self.rect = rect
+
+ def update(self, state) :
+ if state :
+ self.image = self.stateOn
+ else :
+ self.image = self.stateOff
+
+def hls_to_rgba_8bits(h, l, s) :
+ #convert to rgb ranging from 0 to 255
+ rgba = [floor(255 * i) for i in hls_to_rgb(h, l, s) + (1,)]
+ return tuple(rgba)
+
\ No newline at end of file