Unity 一个丝滑的3D下--XY轴2D平台跳跃--控制器模板(FSM)

本Demo基础来自于:

【阿严】 $Unity$ 平台跳跃游戏角色控制器教程合集 | 状态机架构 | Platformer Controller Tutorial Collection_哔哩哔哩_bilibili
阿严的Github地址:https://github.com/AtCloudStudio/PlatformerControllerTutorial

我的实现:通过网盘分享的文件：3D下的2D控制器精髓.7z

链接: https://pan.baidu.com/s/1B-XHXM0a9VzVTrJbL3uctw?pwd=1234 提取码: 1234

本Demo的重点:

1.新输入系统

[2. FSM的so文件化](#2. FSM的so文件化)

3.土狼时间

4.输入预处理(跳跃)

思维导图

状态机及玩家基本组件部分

玩家具体状态实现

视频介绍:

Unity 一个3D下的2D平台跳跃控制器

因为实现起来还是比较简单无痛的所以具体请查看源码我只是将代码放在这里并不会做更多的解释

1.新输入系统

cs 复制代码

using System.Collections;
using Unity.VisualScripting;
using UnityEngine;

public class PlayerInput : MonoBehaviour
{
    private InputSystem_Actions inputActions;


    [SerializeField, InspectorLabel("跳跃缓冲自动无效时间")] private float jumpInputBufferTime = 0.5f;

    public Vector2 Axis => inputActions.Player.Move.ReadValue<Vector2>();
    public float MoveX_input => Axis.x;
    public bool isMove_input => MoveX_input != 0;
    public bool isJump_input => inputActions.Player.Jump.WasPerformedThisFrame();
    public bool StopJump_input => inputActions.Player.Jump.WasReleasedThisFrame();
    //土狼时间
    public bool hasJumpInputBuffer { get; set; }


    private void Awake()
    {
        inputActions = new InputSystem_Actions();
    }
    public void EnableInputSystem()
    {
        inputActions.Player.Enable();
        Cursor.lockState = CursorLockMode.Locked;

        // 注册 当玩家松开跳跃键时，就会触发canceled这个回调
        inputActions.Player.Jump.canceled += (de) =>
        {
            hasJumpInputBuffer = false;
        };
    }



    void OnGUI()
    {
        Rect rect = new Rect(200, 200, 200, 200);
        string message = "Has Jump Input Buffer: " + hasJumpInputBuffer;
        GUIStyle style = new GUIStyle();

        style.fontSize = 20;
        style.fontStyle = FontStyle.Bold;

        GUI.Label(rect, message, style);
    }

    public void ResetJumpBuffer()
    {
        StopCoroutine(DoRestJumpBuffer());
        StartCoroutine(DoRestJumpBuffer());
    }
    public IEnumerator DoRestJumpBuffer()
    {

        hasJumpInputBuffer = true;
        yield return new WaitForSeconds(jumpInputBufferTime);
        hasJumpInputBuffer = false;
    }

    public void DisableInputSystem()
    {
        inputActions.Player.Disable();
    }
}

2. FSM的so文件化

cs 复制代码

using UnityEngine;

public class PlayerState : ScriptableObject, IState
{
    protected Animator animator;
    protected PlayerInput playerInput;
    protected PlyaerStateMachine playerStateMachine;
    protected PlayerController playerController;

    #region 动画参数

    [SerializeField] private string animationClipName; //动画名称
    [SerializeField, Range(0, 1f)] private float crossFadeTime = 0.1f;
    private int stateHash;


    protected float startTime;
    protected float StateDurtion => Time.time - startTime;
    protected bool IsAnimationFinished => StateDurtion >= animator.GetCurrentAnimatorStateInfo(0).length;

    #endregion
    #region 继承参数
    protected float currentSpeed;
    #endregion

    /// <summary>
    /// 初始化
    /// </summary>
    /// <param name="stateMachine">状态机对象</param>
    /// <param name="animator">动画组件</param>
    /// <param name="playerInput">玩家输入类对象</param>
    /// <param name="playerController">玩家控制类对象</param>
    public void Init(PlyaerStateMachine stateMachine, Animator animator, PlayerInput playerInput,
        PlayerController playerController)
    {
        this.animator = animator;
        this.playerStateMachine = stateMachine;
        this.playerInput = playerInput;
        this.playerController = playerController;
    }
    private void OnEnable()
    {
        stateHash = Animator.StringToHash(animationClipName);
    }
    public virtual void Enter()
    {
        animator.CrossFadeInFixedTime(animationClipName, crossFadeTime);
        startTime = Time.time;
    }

    public virtual void Exit() { }

    public virtual void FixedUpdate() { }

    public virtual void Update() { }
}

3.土狼时间

cs 复制代码

using UnityEngine;
[CreateAssetMenu(menuName = "Player/States/Player_CoyoteTime")]
public class Player_CoyoteTime : PlayerState
{
    public float runSpeed = 5f;
    public float coyoteTime = 0.2f;
    public override void Enter()
    {
        base.Enter();
        playerController.SetUesGravity(false);
    }

    public override void Update()
    {
        //土狼时间:让玩家在空中悬浮一小段时间 还是可以跳跃
        if (playerInput.isJump_input)
        {
            playerStateMachine.ChangeState(typeof(Player_JumpUp));
        }
        //只有在超过过土狼时间以后 或者不输入以后才会下落
        if (StateDurtion >= coyoteTime || !playerInput.isMove_input)
        {
            playerStateMachine.ChangeState(typeof(Player_JumpFall));
        }
    }

    public override void FixedUpdate()
    {
        //currentSpeed同步减速
        playerController.Move2Clip(runSpeed);
    }

    public override void Exit()
    {
        playerController.SetUesGravity(true);

    }
}

4.输入预处理(跳跃)

在PlayerInput里

cs 复制代码

    public void ResetJumpBuffer()
    {
        StopCoroutine(DoRestJumpBuffer());
        StartCoroutine(DoRestJumpBuffer());
    }
    public IEnumerator DoRestJumpBuffer()
    {

        hasJumpInputBuffer = true;
        yield return new WaitForSeconds(jumpInputBufferTime);
        hasJumpInputBuffer = false;
    }