PlayerAction.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerAction : MonoBehaviour
{
    // Start is called before the first frame update
    float h;
    float v;
    public float speed;
    bool isHorizonMove;
    Animator anim;
    Vector3 dirVec;
    Rigidbody2D rigid;
    GameObject scanObject;

    void Awake()
    {
        rigid =GetComponent<Rigidbody2D>();
        anim = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        h = Input.GetAxisRaw("Horizontal");
        v = Input.GetAxisRaw("Vertical");

        bool hDown = Input.GetButtonDown("Horizontal");
        bool vDown = Input.GetButtonDown("Vertical");
        bool hUp = Input.GetButtonUp("Horizontal");
        bool vUp = Input.GetButtonUp("Vertical");

        if (hDown)
            isHorizonMove = true;
        else if (vDown)
            isHorizonMove = false;
        else if (hUp || vUp)
            isHorizonMove = h != 0;

        //Animation
        if (anim.GetInteger("hAxisRaw") != h)
        {
            anim.SetBool("isChange", true);
            anim.SetInteger("hAxisRaw", (int)h);
        }
        else if(anim.GetInteger("vAxisRaw") != v)
        {
            anim.SetBool("isChange", true);
            anim.SetInteger("vAxisRaw", (int)v);
        }
        else
        {
            anim.SetBool("isChange",false);
        }

        //Direction
        if(vDown && v == 1)
        {
            dirVec = Vector3.up;
        }else if(vDown && v == -1)
        {
            dirVec = Vector3.down;
        }else if (hDown && h == -1)
        {
            dirVec = Vector3.left;
        }else if(hDown && h == 1)
        {
            dirVec = Vector3.right;
        }

        //scan object
        if (Input.GetButtonDown("Jump") && scanObject != null)
        {
            Debug.Log("this is : "+scanObject.name);
        }
    }

    void FixedUpdate()
    {
        Vector2 moveVec = isHorizonMove ? new Vector2(h, 0) : new Vector2(0, v);
        rigid.velocity = moveVec*speed;

        //Ray
        Debug.DrawRay(rigid.position, dirVec*0.7f, new Color(0,1,0));
        RaycastHit2D rayhit = Physics2D.Raycast(rigid.position, dirVec, 0.7f, LayerMask.GetMask("Object"));

        if(rayhit.collider != null)
        {
            scanObject = rayhit.collider.gameObject;
        }else
            scanObject = null;
    }
}