Unity：当我释放动作输入时，玩家行为怪异

Question

大家好！我正在尝试让我的玩家面对他走来的方向，但是奇怪的事情开始发生了。

我试图让我的玩家面对他行走的方向，但随后奇怪的事情开始发生。每当我现在松开输入键，玩家就会慢慢被吸到他的本地Z轴上。有时候他站着的时候会这样，有时候他翻转的时候也会这样。

任何帮助都将是非常感激的!

先谢谢你

我会把我的脚本提供给你。

public class JackMovement3D : MonoBehaviour {

 public float speed = 6.0F;
 public float VerticalSpeed = 10f;
 public float HorizontalSpeed = 60f;
 public float rotationSpeed = 5f;
 public float jumpSpeed = 8.0F;
 public float gravity = 20.0F;

 private Vector3 moveDirection = Vector3.zero;
 private Animator animator;

 private void Start()
 {
     animator = GetComponent<Animator>();
 }

 void Update()
 {
     CharacterController controller = GetComponent<CharacterController>();
     // is the controller on the ground?
     if (controller.isGrounded)
     {
         float horizontal = Input.GetAxis("Horizontal") * HorizontalSpeed;
         float vertical = Input.GetAxis("Vertical") * VerticalSpeed;

         //Feed moveDirection with input.
         moveDirection = new Vector3(horizontal, 0, vertical);
         moveDirection = transform.TransformDirection(moveDirection);

         //Multiply it by speed.
         moveDirection *= speed;
     }

     //Applying gravity to the controller
     moveDirection.y -= gravity * Time.deltaTime;

     animator.SetFloat("Blend", controller.velocity.magnitude);

     //Look at walking direction
     Quaternion newRotation = Quaternion.LookRotation(moveDirection);
     transform.rotation = Quaternion.Slerp(transform.rotation, newRotation, rotationSpeed);

     // CharacterController.Move to move the player in target direction
     controller.Move(moveDirection * Time.deltaTime);
 }

 private void LateUpdate()
 {
     transform.localEulerAngles = new Vector3(0, transform.localEulerAngles.y, transform.localEulerAngles.z);
 }

}

Answer 1

不知道这是否是你所描述的问题，但可能与以下问题有关。

Quaternion.LookRotation(moveDirection);

因为如果没有输入，则 moveDirection 是一个 Vector3(0,0,0) 和 Quaternion.LookRotation

如果向前或向上的幅度为零，则返回身份。

所以你可能可以通过添加一个检查来避免将旋转重置为idendity，如

// if movement is 0 do nothing else
if(Mathf.Approximately(moveDirection.sqrMagnitude, 0)) return;

这应该是在添加重力之前。

其实我也不太确定，但我猜测重力应该是在加完

 void Update()
 {
     CharacterController controller = GetComponent<CharacterController>();
     // is the controller on the ground?
     if (controller.isGrounded)
     {
         float horizontal = Input.GetAxis("Horizontal") * HorizontalSpeed;
         float vertical = Input.GetAxis("Vertical") * VerticalSpeed;

         //Feed moveDirection with input.
         moveDirection = new Vector3(horizontal, 0, vertical);
         moveDirection = transform.TransformDirection(moveDirection);

         //Multiply it by speed.
         moveDirection *= speed;
     }

     animator.SetFloat("Blend", controller.velocity.magnitude);

     // if movement is 0 do nothing else
     if(Mathf.Approximately(moveDirection.sqrMagnitude, 0))
     {
         return;
     }

     moveDirection.y -= gravity * Time.deltaTime;

     //Look at walking direction
     var newRotation = Quaternion.LookRotation(moveDirection);
     transform.rotation = Quaternion.Slerp(transform.rotation, newRotation, rotationSpeed);

     // CharacterController.Move to move the player in target direction
     controller.Move(moveDirection * Time.deltaTime);
 }