unity3d 平滑看向的脚本

unity3d 平滑看向的脚本,涉及到知识有二点间方向计算，三维向量的一些方法应用。以及四元素类的应用

 

using UnityEngine;public class SmoothLookFrame : MonoBehaviour {     public Transform lookAtTarget;    public Transform frameTarget;    public float distance = 10.0f;    public float height = 5.0f;    public float damping = 2.0f;     private Vector3 direction;    private Vector3 wantedPosition;     void Update () {        if (!lookAtTarget || !frameTarget)            return;         direction = (frameTarget.position - lookAtTarget.position);        wantedPosition = frameTarget.position + (direction.normalized * distance);         wantedPosition.y = wantedPosition.y + height;        transform.position = Vector3.Lerp(transform.position, wantedPosition, damping * Time.deltaTime);         Quaternion rotate = Quaternion.LookRotation(lookAtTarget.position - transform.position);    transform.rotation = Quaternion.Slerp(transform.rotation, rotate, Time.deltaTime * damping);    }}