【长按短按】Unity输入系统模块

寒假在做Unity小项目时，想实现一个功能：单击shift键角色冲刺、长按shift键角色疾跑，于是需要处理长按和短按的问题。在互联网上找的教程，要么是针对于老输入系统的——麻烦、代码量繁杂。要么是针对新输入系统、但不易理解、代码冗杂。于是这里分享一套自己的框架，用起来还是很顺手的，巧妙处理长按、短按。

思路介绍

图片 我们安装新的输入系统后，创建一个输入文件、一个GameInputManager类，使用继承MonoBehaviour的单例模式基类，OnEnable时启用、OnDisable时关闭。在输入配置文件里，创建两个键位，给Sprint和Fast_Run都绑定左shift键，前者interactions添加一个tap，后者则是添加Hold。于是就有了以下代码： 
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using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.InputSystem.Interactions;

public class GameInputManager : MonoSingle<GameInputManager>
{
    private GameInputAction _gameInputAction;
    //书写按键逻辑
    public Vector2 movement => _gameInputAction.GameInput.Move.ReadValue<Vector2>();
    //锁敌
    private bool _lock = false;
    //贴墙
    private bool _wall = false;
    //切武器
    private bool _weapon = false;
    public bool Lock
    {
        get
        {
            if (_gameInputAction.GameInput.Lock.triggered)
                _lock = !_lock;
            return _lock;

        }
    }
    //格挡
    public bool Parry => _gameInputAction.GameInput.Parry.IsPressed();
    // 冲刺
    public bool Sprint => _gameInputAction.GameInput.Sprint.triggered;

    // 疾跑
    public bool Fast_Run => _gameInputAction.GameInput.Fast_Run.IsPressed();
    //攻击
    public bool LeftAttack => _gameInputAction.GameInput.LeftAttack.triggered;
    public bool RightAttack => _gameInputAction.GameInput.RightAttack.triggered;

    //相机
    public Vector2 Camera => _gameInputAction.GameInput.Camera.ReadValue<Vector2>();
    //技能
    public bool Ctrl => _gameInputAction.GameInput.Ctrl.triggered;
    public bool Q => _gameInputAction.GameInput.Q.triggered;
    //切换技能
    public bool Z => _gameInputAction.GameInput.Q.triggered;
    //贴墙
    public bool X
    {
        get
        {
            if (_gameInputAction.GameInput.Lock.triggered)
                _wall = !_wall;
            return _wall;
        }
    }

    //切换武器

    public bool Tab
    {
        get
        {
            if (_gameInputAction.GameInput.Tab.triggered)
                _weapon = !_weapon;
            return _weapon;
        }
    }


    private void OnEnable()
    {
        _gameInputAction ??= new GameInputAction();
        _gameInputAction.Enable();
    }

    private void OnDisable()
    {
        _gameInputAction.Disable();
    }
}