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        通常对俯视角2d游戏的角色移动我们使用简单2d混合树的方式,但是其不移动时的朝向该如何定义？

        十分简单：移动和不移动之间形成逻辑自锁

       详细说明思路就是再创建一个简单2d混合树 定义其N方向的idle 并用lastDirc二维向量保存玩家输入，当玩家输入为0时，就不进改变lastDirc的函数块，用该变量去改变idle混合树状态即可

请看整体代码

using System;
using UnityEngine;[Serializable]
public class PlayerCtrl : MonoBehaviour {private static PlayerCtrl instance;public static PlayerCtrl Instance => instance;public Vector2 moveDir;public Vector2 lastDir;[SerializeField]private float moveSpeed;public Rigidbody2D playerRb;private void Awake() {if (instance == null){ instance = this;}else{ Destroy(instance);}playerRb = GetComponent<Rigidbody2D>();}void Start() {moveSpeed = 0.1f;}void Update() {GetInput();}private void FixedUpdate() {FixedMove();}public void GetInput(){moveDir = new Vector2(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));}private void FixedMove() {playerRb.MovePosition((Vector2)this.playerRb.position + moveDir.normalized * moveSpeed);}
}

using UnityEngine;public class PlayerAm : MonoBehaviour
{  private Animator playerAm;private void Awake() {playerAm = GetComponent<Animator>();}// Start is called once before the first execution of Update after the MonoBehaviour is createdvoid Start(){}// Update is called once per framevoid Update(){PlayerAmCtrl();}public void PlayerAmCtrl(){if (PlayerCtrl.Instance.moveDir != Vector2.zero) {PlayerCtrl.Instance.lastDir = PlayerCtrl.Instance.moveDir;playerAm.SetBool("isMoving", true);playerAm.SetFloat("X", PlayerCtrl.Instance.moveDir.x);playerAm.SetFloat("Y", PlayerCtrl.Instance.moveDir.y);}else {playerAm.SetBool("isMoving", false);playerAm.SetFloat("Ix", PlayerCtrl.Instance.lastDir.x);playerAm.SetFloat("Iy", PlayerCtrl.Instance.lastDir.y);}}
}

        为什么这么简单的事情还需要记录呢？？

        因为我一直在寻找不这么做就可以解决的方式，但是似乎涉及到了这个2d简单混合树后再只想通过代码去解决是很难的

        如果是简单的一维向量锁方向就行了，希望大佬看到此篇后有更加简单的方法私信我