[游戏开发] Unity3d物体沿着折线匀速移动

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[游戏开发]Unity3d物体沿着折线匀速移动

?Unity3d物体沿着折线匀速移动，移动过程中物体自动改变朝向。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class WayPoints : MonoBehaviour
{
    // put the points from unity interface
    public Transform[] wayPointList;
    public int currentWayPoint = 0;
    public float speed = 4f;
    Transform targetWayPoint;

    // Update is called once per frame
    void Update()
    {
        // check if we have somewere to walk
        if (currentWayPoint < this.wayPointList.Length)
        {
            if (targetWayPoint == null)
                targetWayPoint = wayPointList[currentWayPoint];
            walk();
        }
    }

    void walk()
    {
        // rotate towards the target
        transform.forward = Vector3.RotateTowards(transform.forward, targetWayPoint.position - transform.position, speed * Time.deltaTime, 0.0f);

        // move towards the target
        transform.position = Vector3.MoveTowards(transform.position, targetWayPoint.position, speed * Time.deltaTime);

        if (transform.position == targetWayPoint.position)
        {
            currentWayPoint++;
            if (currentWayPoint < this.wayPointList.Length)
            {
                targetWayPoint = wayPointList[currentWayPoint];
            }                
        }
    }
}