물리의 시계로
움직입니다

using UnityEngine;
using UnityEngine.InputSystem;

[RequireComponent(typeof(Rigidbody2D))]
public class PlayerController : MonoBehaviour
{
    [Header("Input")]
    [SerializeField] private InputActionReference moveAction;

    [Header("Movement")]
    [SerializeField, Min(0f)] private float moveSpeed = 5f;
    [SerializeField] private bool showInputMonitor = true;

    private Rigidbody2D body;
    private Vector2 moveInput;

    private void Awake()
    {
        body = GetComponent<Rigidbody2D>();
    }

    private void OnEnable()
    {
        if (moveAction == null)
        {
            Debug.LogError("PlayerController: Move Action을 연결하세요.", this);
            enabled = false;
            return;
        }

        moveAction.action.Enable();
    }

    private void OnDisable()
    {
        if (moveAction != null)
        {
            moveAction.action.Disable();
        }
    }

    private void Update()
    {
        moveInput = moveAction.action.ReadValue<Vector2>();
        moveInput = Vector2.ClampMagnitude(moveInput, 1f);
    }

    private void FixedUpdate()
    {
        body.linearVelocity = moveInput * moveSpeed;
    }

    private void OnGUI()
    {
        if (!showInputMonitor || body == null) return;

        GUI.Box(new Rect(16, 16, 250, 82), "INPUT MONITOR");
        GUI.Label(new Rect(32, 46, 220, 20),
            $"Move: ({moveInput.x:0.00}, {moveInput.y:0.00})");
        GUI.Label(new Rect(32, 68, 220, 20),
            $"Speed: {body.linearVelocity.magnitude:0.00}");
    }
}