StateMachine2c1

using UnityEngine;
using System.Collections;

public class PlayerScript : MonoBehaviour {

    int currentState = 0; // 0: Blue    1: Red

    void Update () {

        // state: Blue
        if (currentState == 0) {
            Debug.Log ("Blue");

            // 状態変更
            if (Input.GetKeyDown (KeyCode.R)) {
                currentState = 1;
            }
        }

        // state: Red
        if (currentState == 1) {
            Debug.Log ("Red");

            if(Input.GetKeyDown(KeyCode.B)){
                currentState = 0;
            }
        }
    }
}