def show_moves(sb, piece, square):
# shade green all the positions for this piece from this square
squares = []
for m in board.legal_moves:
if m.from_square == square:
squares.append(m.to_square)
print('squares={}'.format(squares))
for s in squares:
sr = int((s - 1) / 8)
sx = (s - 1) - int(s / 8) * 8 + 1
sy = 7 - sr
print('s={} sy={} sx={}'.format(s, sy, sx))
print('sb at sy,sx={}'.format(sb[sy, sx]))
sb[sy, sx] = Color.from_rgb(sb[sy, sx][0], 0.3, sb[sy, sx][2])
def test_color_from_rgb():
verify_color(Color.from_rgb(0, 0, 0), (0.0, 0.0, 0.0))
verify_color(Color.from_rgb(1, 1, 1), (1.0, 1.0, 1.0))
verify_color(Color.from_rgb(2, 1, 1), (1.0, 1.0, 1.0))
verify_color(Color.from_rgb(1, -1, 1), (1.0, 0.0, 1.0))
verify_color(Color.from_rgb(r=1, g=0, b=0), (1.0, 0.0, 0.0))
