(surface, color, gradient,
                  rect=None, vertical=True, forward=True)
Fill a surface with a linear gradient pattern.

    color

        starting color

    gradient

        final color

    rect

        area to fill; default is surface's rect

    vertical

        True=vertical; False=horizontal

    forward

        True=forward; False=reverse

    See http://www.pygame.org/wiki/GradientCode
Fill a surface with a linear gradient pattern.
Fill a surface with a linear gradient pattern .
def fill_gradient(surface, color, gradient,
                  rect=None, vertical=True, forward=True):

    """Fill a surface with a linear gradient pattern.

    color

        starting color

    gradient

        final color

    rect

        area to fill; default is surface's rect

    vertical

        True=vertical; False=horizontal

    forward

        True=forward; False=reverse

    See http://www.pygame.org/wiki/GradientCode
    """

    if rect is None:
        rect = surface.get_rect()

    x1, x2 = rect.left, rect.right
    y1, y2 = rect.top, rect.bottom

    if vertical:
        h = y2 - y1
    else:
        h = x2 - x1

    assert h > 0

    if forward:
        a, b = color, gradient
    else:
        b, a = color, gradient

    rate = (float(b[0] - a[0]) / h,
            float(b[1] - a[1]) / h,
            float(b[2] - a[2]) / h)

    fn_line = pygame.draw.line
    if vertical:
        for line in range(y1, y2):
            color = (min(max(a[0] + (rate[0] * (line - y1)), 0), 255),
                     min(max(a[1] + (rate[1] * (line - y1)), 0), 255),
                     min(max(a[2] + (rate[2] * (line - y1)), 0), 255))
            fn_line(surface, color, (x1, line), (x2, line))
    else:
        for col in range(x1, x2):
            color = (min(max(a[0] + (rate[0] * (col - x1)), 0), 255),
                     min(max(a[1] + (rate[1] * (col - x1)), 0), 255),
                     min(max(a[2] + (rate[2] * (col - x1)), 0), 255))
            fn_line(surface, color, (col, y1), (col, y2))
def fill_gradient ( surface , color , gradient , rect = None , vertical = True , forward = True ) : if rect is None : rect = surface . get_rect ( ) x1 , x2 = rect . left , rect . right y1 , y2 = rect . top , rect . bottom if vertical : h = y2 - y1 else : h = x2 - x1 assert h > 0 if forward : a , b = color , gradient else : b , a = color , gradient rate = ( float ( b [ 0 ] - a [ 0 ] ) / h , float ( b [ 1 ] - a [ 1 ] ) / h , float ( b [ 2 ] - a [ 2 ] ) / h ) fn_line = pygame . draw . line if vertical : for line in range ( y1 , y2 ) : color = ( min ( max ( a [ 0 ] + ( rate [ 0 ] * ( line - y1 ) ) , 0 ) , 255 ) , min ( max ( a [ 1 ] + ( rate [ 1 ] * ( line - y1 ) ) , 0 ) , 255 ) , min ( max ( a [ 2 ] + ( rate [ 2 ] * ( line - y1 ) ) , 0 ) , 255 ) ) fn_line ( surface , color , ( x1 , line ) , ( x2 , line ) ) else : for col in range ( x1 , x2 ) : color = ( min ( max ( a [ 0 ] + ( rate [ 0 ] * ( col - x1 ) ) , 0 ) , 255 ) , min ( max ( a [ 1 ] + ( rate [ 1 ] * ( col - x1 ) ) , 0 ) , 255 ) , min ( max ( a [ 2 ] + ( rate [ 2 ] * ( col - x1 ) ) , 0 ) , 255 ) ) fn_line ( surface , color , ( col , y1 ) , ( col , y2 ) )