Quaternion.LookRotation角度不能正常工作

Question

我一直在尝试一段时间，并找不出为什么它不工作。 我有一个PathHolder父项中的空对象的简单路径，它跟随该路径并顺利旋转以面对它将要前进的点。我的问题是，有一半的时间，角色对象并没有一直旋转，而是仍然朝着应有的方向前进。 另一个奇怪的是，将点移近会减少物体的旋转量，并且进一步移动它会使角色面对点。但是，在任何情况下工作路径都需要灵活，所以我不能让距离影响旋转。

理想情况下，我希望角色可以完全顺畅地朝向箭头键按下的位置旋转，以便角色在玩家释放按键时不会卡在游戏中途。这里是我的代码至今：

using UnityEngine; 
using System.Collections; 

public class CharacterControllerPath : MonoBehaviour 
{ 
    enum Direction {Forward, Backward}; 
    Direction charDirection; 

    public PathEditor pathToFollow; 

    private Vector3 targetPosition; 

    public string pathName; 
    public int wayPointID = 0; 
    public float speed; 
    public float rotationSpeed = 7.0f; 

    private float reachDistance = 1.0f; 
    private float distanceX; 
    private float distanceY; 

    void Start() 
    { 
     transform.position = new Vector3(pathToFollow.pathObj[wayPointID].transform.position.x, transform.position.y, pathToFollow.pathObj[wayPointID].transform.position.z); 
     charDirection = Direction.Forward; 
     Vector3 targetPosition = new Vector3(pathToFollow.pathObj[wayPointID + 1].transform.position.x, transform.position.y, pathToFollow.pathObj[wayPointID + 1].transform.position.z); 
     transform.LookAt(targetPosition); 
    } 

    void FixedUpdate() 
    { 
     Movement(); 
    } 

    void Movement() 
    { 
     if(Input.GetKey(KeyCode.RightArrow)) 
     { 
      charDirection = Direction.Forward; 

      //Move 
      targetPosition = new Vector3(pathToFollow.pathObj[wayPointID].transform.position.x, transform.position.y, pathToFollow.pathObj[wayPointID].transform.position.z); 
      transform.position = Vector3.MoveTowards(transform.position, targetPosition, speed * Time.deltaTime); 

      //Rotate 
      targetPosition = new Vector3(pathToFollow.pathObj[wayPointID].transform.position.x, 0, pathToFollow.pathObj[wayPointID].transform.position.z); 
      var rotation = Quaternion.LookRotation(targetPosition); 
      transform.rotation = Quaternion.Slerp(transform.rotation, rotation, speed * Time.deltaTime); 

      if(transform.position.x == targetPosition.x && transform.position.z == targetPosition.z) 
       wayPointID++; 
     } 
     else if(Input.GetKey(KeyCode.LeftArrow)) 
     { 
      charDirection = Direction.Backward; 

      //Move 
      targetPosition = new Vector3(pathToFollow.pathObj[wayPointID - 1].transform.position.x, transform.position.y, pathToFollow.pathObj[wayPointID - 1].transform.position.z); 
      transform.position = Vector3.MoveTowards(transform.position, targetPosition, speed * Time.deltaTime); 

      //Rotate 
      targetPosition = new Vector3(pathToFollow.pathObj[wayPointID - 1].transform.position.x, 0, pathToFollow.pathObj[wayPointID - 1].transform.position.z); 
      var rotation = Quaternion.LookRotation(targetPosition); 
      transform.rotation = Quaternion.Slerp(transform.rotation, rotation, speed * Time.deltaTime); 

      if(transform.position.x == targetPosition.x && transform.position.z == targetPosition.z) 
       wayPointID--; 
     } 

     if(wayPointID >= pathToFollow.pathObj.Count) 
     { 
      //Put code to finish the level 
      wayPointID = (pathToFollow.pathObj.Count - 1); 
     } 
     else if(wayPointID <= 0) 
      wayPointID = 0; 
    } 
} 

Answer 1

如果你想两个向量之间平滑移动载体，应用

Vector3.Lerp(firstPosOrRotation, secondPosOrRotation, Time.deltaTime*Input.GetInputRaw("Horizontal")*speed); 

Input.GetInputRaw（“水平”）只是之间的值 - 1和1取决于正在按下的方向键。 现在只需获取路径中的每个点和下一个点以及它们之间的Lerp。

• 编辑 对于旋转，代替Time.deltaTime和所有，为此

  旋转= Vector3.Lerp（rotationA，rotationB，Mathf.Clamp（DIST（POS， finalPos）， 0，1）;

  DIST（POS， finalPos）=量在点A和B之间行进

我希望这是清楚的烯ough， 我不确定你的意思，或者你希望对象在路径上向前。