Convert polar coordinates to Carteasian Coordinates

def from_polar(degrees, magnitude):
        """Convert polar coordinates to Carteasian Coordinates"""
        vec = Vector2()
        vec.X = math.cos(math.radians(degrees)) * magnitude

        # Negate because y in screen coordinates points down, oppisite from what is
        # expected in traditional mathematics.
        vec.Y = -math.sin(math.radians(degrees)) * magnitude
        return vec