using UnityEngine ; using System.Collections ; using System.Collections.Generic ; [ RequireComponent ( typeof ( Rigidbody ) ) ] public class PlayerController : MonoBehaviour { public float movementSpeed = 5 . 0f ; void Start ( ) { } void Update ( ) { Rigidbody rigidbody = GetComponent < Rigidbody > ( ) ; if ( Input . GetKey ( KeyCode . W ) ) { transform . position += Vector3 . forward * Time . deltaTime * movementSpeed ; } ...