写一段unity中的人物控制代码，要求在3d条件下可以实现移动，跳跃，奔跑，贴墙跑和边缘攀爬

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class CharacterController : MonoBehaviour{
public float speed = 6.0f;
public float jumpSpeed = 8.0f;
public float gravity = 20.0f;
public Vector3 wallRunSpeed;
private Vector3 moveDirection = Vector3.zero;
private CharacterController controller;
private Vector3 edgeClimbSpeed; void Start(){
controller = GetComponent<CharacterController>();
} void Update(){
if (controller.isGrounded){
moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
moveDirection = transform.TransformDirection(moveDirection);
moveDirection *= speed;
if (Input.GetButton("Jump")){
moveDirection.y = jumpSpeed;
}
}
moveDirection.y -= gravity * Time.deltaTime;
controller.Move(moveDirection * Time.deltaTime);
if (Input.GetButtonDown("Wall Running")){
moveDirection = transform.TransformDirection(wallRunSpeed);
moveDirection *= speed;
}
if (Input.GetButtonDown("Edge Climbing")){
moveDirection = transform.TransformDirection(edgeClimbSpeed);
moveDirection *= speed;
}
}
}这是一段Unity中用于控制角色移动，跳跃，奔跑，贴墙跑和边缘攀爬的代码。使用CharacterController对象的Move方法来控制角色的移动，并判断角色是否处于地面，是否按下了跳跃，贴墙跑和边缘攀爬的按钮。