在 Unity 中，我的 FPS 角色在斜行时会加速

Question

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

public class PlayerMovment : MonoBehaviour
{
    private CharacterController Controller;


    public float speed = 12f;
    public float gravity = -9.81f * 2;
    public float JumpHeight = 3f;

    public Transform groundCheck;
    public float groundDistance = 0.4f;
    public LayerMask groundMask;

    Vector3 velocity;

    bool isGrounded;
    bool isMoving;

    private Vector3 lastPosition = new Vector3(0f,0f,0f);

    void Start()
    {
        Controller = GetComponent<CharacterController>();
    }


    void Update()
    {

        //Karakter yere değiyormu.
        isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
        Debug.Log("Birim karedeki hız: " + Controller.velocity.magnitude);
        if (isGrounded && velocity.y < 0)
        {
            velocity.y = -2f;
        }


        float x = Input.GetAxis("Horizontal");
        float z = Input.GetAxis("Vertical");


        Vector3 move = transform.right * x + transform.forward * z;

        Controller.Move(move*speed*Time.deltaTime);

        if(Input.GetButtonDown("Jump") && isGrounded)
        {
            velocity.y += Mathf.Sqrt(JumpHeight * -2f * gravity);
        }
        
        velocity.y += gravity*Time.deltaTime;


        Controller.Move(velocity*Time.deltaTime);

        if(lastPosition != gameObject.transform.position && isGrounded == true)
        {
            isMoving = true;
        }
        else
        {
            isMoving = false;
        }

    }
}

我正在尝试制作一个FPS游戏，上面的代码是角色的移动代码，但是角色在斜行时会加速。出现此问题的原因是，当角色尝试向两个方向移动、同时沿对角线或其他方向移动时，角色的速度会增加？另外，我如何测量角色的速度，即每单位帧的移动速度。游戏引擎统一

Answer 1

这不是一个完美的解决方案，但已经相当不错了。

Vector2 inVector = new Vector2(Input.GetAxis("水平"), Input.GetAxis("垂直"));

if(inVector.magnitude > 1) { inVector.Normalize(); }

Vector3 移动 = 变换.right * inVector.x + 变换.forward * inVector.y;