PlayerMovement

using UnityEngine;
using System.Collections;
using EnemyInfo;
using Shell;

namespace PlayerInfo
{
    public class PlayerMovement : MonoBehaviour
    {
        public int PlayerNumber = 1;
        public float Speed = 10f;
        public float TurnSpeed = 180f;
        public AudioSource MovementAudio;
        public AudioClip EngineIdling;
        public AudioClip EngineDriving;

        string MovementAxisName;
        string TurnAxisName;
        Rigidbody Rigidbody;
        float MovementInputValue;
        float TurnInputValue;

        void Awake ()
        {
            Rigidbody = GetComponent<Rigidbody> ();
        }

        void OnEnable ()
        {
            Rigidbody.isKinematic = false;

            MovementInputValue = 0f;
            TurnInputValue = 0f;
        }

        void OnDisable ()
        {
            Rigidbody.isKinematic = true;
        }

        void Start ()
        {
            MovementAxisName = "Vertical";
            TurnAxisName = "Horizontal";
        }

        void Update ()
        {
            MovementInputValue = Input.GetAxis (MovementAxisName);
            TurnInputValue = Input.GetAxis (TurnAxisName);

            EngineAudio ();
        }

        void EngineAudio ()
        {
            // If there is no input (the tank is stationary)...
            if (Mathf.Abs (MovementInputValue) < 0.1f && Mathf.Abs (TurnInputValue) < 0.1f)
            {
                // ... and if the audio source is currently playing the driving clip...
                if (MovementAudio.clip == EngineDriving)
                {
                    // ... change the clip to idling and play it.
                    MovementAudio.clip = EngineIdling;
                    MovementAudio.Play ();
                }
            }
            else
            {
                // Otherwise if the tank is moving and if the idling clip is currently playing...
                if (MovementAudio.clip == EngineIdling)
                {
                    // ... change the clip to driving and play.
                    MovementAudio.clip = EngineDriving;
                    MovementAudio.Play();
                }
            }
        }

        void FixedUpdate ()
        {
            Move ();
            Turn ();
        }

        void Move ()
        {
            Vector3 movement = transform.forward * MovementInputValue * Speed * Time.deltaTime;

            Rigidbody.MovePosition (Rigidbody.position + movement);
        }

        void Turn ()
        {
            float turn = TurnInputValue * TurnSpeed * Time.deltaTime;

            Quaternion turnRotation = Quaternion.Euler (0f, turn, 0f);

            Rigidbody.MoveRotation (Rigidbody.rotation * turnRotation);
        }

    }
}