Как сделать так что бы персонаж не проходил через Cube

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class NewBehaviourScript1 : MonoBehaviour
{
   void Update()
   {
if (Input.GetKey(KeyCode.W)){transform.position+=transform.forward* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.S)){transform.position-=transform.forward* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.A)){transform.position-=transform.right* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.D)){transform.position+=transform.right* Time.deltaTime*2;;}
   }
}

 public enum RotationAxes {
 MouseXAndY = 0,
 MouseX = 1,
 MouseY = 2
 }
 public RotationAxes axes = RotationAxes.MouseXAndY;
 public float sensitivityHor = 9.0f;
 public float sensitivityVert = 9.0f;
 public float minimumVert = -45.0f;
 public float maximumVert = 45.0f;
 private float _rotationX = 0;
 void Start() {
 Rigidbody body = GetComponent<Rigidbody>();
 if (body != null)
 body.freezeRotation = true;
 }
 void Update() {
 if (axes == RotationAxes.MouseX) {
 transform.Rotate(0, Input.GetAxis("Mouse X") * sensitivityHor, 0);
 }
 else if (axes == RotationAxes.MouseY) {
 _rotationX -= Input.GetAxis("Mouse Y") * sensitivityVert;
 _rotationX = Mathf.Clamp(_rotationX, minimumVert, maximumVert);
 float rotationY = transform.localEulerAngles.y;
 transform.localEulerAngles = new Vector3(_rotationX, rotationY, 0);
 }
 else {
 _rotationX -= Input.GetAxis("Mouse Y") * sensitivityVert;
 _rotationX = Mathf.Clamp(_rotationX, minimumVert, maximumVert);
 float delta = Input.GetAxis("Mouse X") * sensitivityHor;
 float rotationY = transform.localEulerAngles.y + delta;
 transform.localEulerAngles = new Vector3(_rotationX, rotationY, 0);
 }
 }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class NewBehaviourScript1 : MonoBehaviour
{
   void Update()
   {
if (Input.GetKey(KeyCode.W)){transform.position+=transform.forward* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.S)){transform.position-=transform.forward* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.A)){transform.position-=transform.right* Time.deltaTime*2;;}
if (Input.GetKey(KeyCode.D)){transform.position+=transform.right* Time.deltaTime*2;;}
   }
}

    Ray ray = Camera.main.ScreenPointToRay(new Vector2(Screen.width / 2 , Screen.Height / 2);
    RaycastHit hit;
    if(Phisics.Raycast(ray,out hit,1000)){
    
    }