Method unit

poco/utils/vector.py:65–67

(self)

        return math.sqrt(self.x ** 2 + self.y ** 2)

    def unit(self):
        length = self.length
        return Vec2(self.x / length, self.y / length)

    def rotate(self, radian):
        qx = math.cos(radian) * self.x - math.sin(radian) * self.y