次のUIを構築できます
按键控制器类
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public enum Key
{
ForWord,
BackWord,
Right,
Left,
//不存在的键
None
}
public class KeyController : MonoBehaviour
{
Button[] ButtonArray;
Text[] TextArray;
bool IsWattingForInput = false;
Button button;
//单例
public static KeyController Instance;
private void Awake()
{
if (Instance == null)
{
Instance = this;
}
else
{
Destroy(this);
}
}
//初始化
private void Start()
{
ButtonArray = GetComponentsInChildren<Button>();
TextArray= new Text[ButtonArray.Length];
int i = 0;
foreach (var item in ButtonArray)
{
TextArray[i] = item.gameObject.GetComponentInChildren<Text>();
item.onClick.AddListener(()=>ChangeKeyBoard(item));
i++;
}
Refresh();
}
private void Update()
{
if (IsWattingForInput)
{
ChangeKeyBoard(button);
}
}
public static Dictionary<Key, KeyCode> KeyDict = new Dictionary<Key, KeyCode>()
{
{
Key.ForWord,KeyCode.W },{
Key.BackWord,KeyCode.S},{
Key.Right,KeyCode.D},{
Key.Left,KeyCode.A }
};
/// <summary>
/// 改变键值
/// </summary>
/// <param name="key">键值类型</param>
/// <param name="code">KeyCode</param>
public void ChangeKey(Key key,KeyCode code)
{
if (KeyDict.ContainsKey(key))
{
KeyDict[key] =code;
}
else
{
KeyDict.Add(key,code);
}
}
//刷新界面
public void Refresh()
{
int i = 0;
foreach (var item in KeyDict.Values)
{
TextArray[i].text = item.ToString();
i++;
}
}
//自定义按键，修改UI显示
public void ChangeKeyBoard(Button button)
{
this.button = button;
IsWattingForInput = true;
//拿到值
string values= button.GetComponentInChildren<Text>().text;
//查找键
Key key=Key.None;
foreach (var item in KeyDict)
{
if (item.Value.ToString()==values)
{
key = item.Key;
}
}
if (!Input.inputString.Equals(""))
{
ChangeKey(key,(KeyCode)System.Enum.Parse(typeof(KeyCode),Input.inputString.ToUpper()));
IsWattingForInput = false;
Refresh();
}
}
}
测试类
using UnityEngine;
using static KeyController;
public class Player2 : MonoBehaviour
{
public float Speed;
public float RotateSpeed;
bool IsActive = false;
private void Update()
{
Move();
ShowUI();
}
public void Move()
{
if (Input.GetKey(KeyDict[Key.ForWord]))
{
Debug.Log("向前"+ KeyDict[Key.ForWord]);
}
else if (Input.GetKey(KeyDict[Key.BackWord]))
{
Debug.Log("向后" + KeyDict[Key.BackWord]);
}
else if (Input.GetKey(KeyDict[Key.Right]))
{
Debug.Log("向右" + KeyDict[Key.Right]);
}
else if (Input.GetKey(KeyDict[Key.Left]))
{
Debug.Log("向左" + KeyDict[Key.Left]);
}
else {
return; }
}
public void ShowUI()
{
if (Input.GetKeyDown(KeyCode.Escape))
{
KeyController.Instance.gameObject.SetActive(IsActive);
IsActive = !IsActive;
}
}
}