StateMachine2c3

using UnityEngine;
using System.Collections;

public class PlayerScript : MonoBehaviour {
    
    //切り替わるオブジェクト
    public GameObject blueObject;
    public GameObject redObject;
    
    //現在のオブジェクト
    private GameObject currentObject;

    //状態を定義
    public enum PlayerState
    {
        BLUE,
        RED
    }

    //現在の状態
    private PlayerState _currentState;

    void Start () {
        InitState ();
    }

    void Update () {
        switch (_currentState) {
        case PlayerState.BLUE:
            UpdateBlue ();
            break;
        case PlayerState.RED:
            UpdateRed ();
            break;
        default:
            break;
        }
        Debug.Log (_currentState);
    }

    //状態の初期化
    void InitState(){
        _currentState = PlayerState.BLUE;
        currentObject = blueObject;
    }
    
    //状態がBlueのときにやること
    void UpdateBlue(){
        if (Input.GetKey (KeyCode.RightArrow)) {
            this.transform.position += Vector3.right * Time.deltaTime * 5f;
        }

        if (Input.GetKey (KeyCode.LeftArrow)) {
            this.transform.position += Vector3.right * (-1) * Time.deltaTime * 5f;
        }

        if (Input.GetKeyDown (KeyCode.C)) {
            _currentState = PlayerState.RED;
            ChangeMode (redObject);
        }
    }
    
    //状態がRedのときにやること
    void UpdateRed(){
        if (Input.GetKeyDown (KeyCode.C)) {
            _currentState = PlayerState.BLUE;
            ChangeMode (blueObject);
        }
    }

    //オブジェクトの切り替え
    void ChangeMode(GameObject obj){
        currentObject.SetActive(false);
        currentObject = obj;
        currentObject.SetActive (true);
    }
}