vec.py 文件源码

def __init__(
        self,
        x: Union[int, float, 'Vec', Iterable[float]]=0.0,
        y: float=0.0,
        z: float=0.0,
    ) -> None:
        """Create a Vector.

        All values are converted to Floats automatically.
        If no value is given, that axis will be set to 0.
        An iterable can be passed in (as the x argument), which will be
        used for x, y, and z.
        """
        if isinstance(x, (int, float)):
            self.x = float(x)
            self.y = float(y)
            self.z = float(z)
        else:
            it = iter(x)
            self.x = float(next(it, 0.0))
            self.y = float(next(it, y))
            self.z = float(next(it, z))