UNITY 移动到指定位置的写法

//move towards a target at a set speed.
private void MoveTowardsTarget() {
    //the speed, in units per second, we want to move towards the target
    float speed = ;
    //move towards the center of the world (or where ever you like)
    Vector3 targetPosition = new Vector3(,,);

    Vector3 currentPosition = this.transform.position;
    //first, check to see if we're close enough to the target
    if(Vector3.Distance(currentPosition, targetPosition) > .1f) {
        Vector3 directionOfTravel = targetPosition - currentPosition;
        //now normalize the direction, since we only want the direction information
        directionOfTravel.Normalize();
        //scale the movement on each axis by the directionOfTravel vector components

        this.transform.Translate(
            (directionOfTravel.x * speed * Time.deltaTime),
            (directionOfTravel.y * speed * Time.deltaTime),
            (directionOfTravel.z * speed * Time.deltaTime),
            Space.World);
    }
}