CountDownUIComponent.cs

using UnityEngine;
using System.Collections;

public class CountDownUIComponent : MonoBehaviour {

    #region 残り時間フィールド
    /// <summary>
    /// 分ラベル
    /// </summary>
    [SerializeField]
    private UILabel minuteLabel;
    /// <summary>
    /// 秒ラベル
    /// </summary>
    [SerializeField]
    private UILabel secondLabel;
    /// <summary>
    /// gvgの時間
    /// </summary>
    [SerializeField]
    private float remainTime = 600;
    #endregion

    // Use this for initialization
    void Start()
    {
        StartCoroutine(Timer());
    }
	
    #region　タイマー

    private IEnumerator Timer()
    {
        float timer = remainTime;
        while (true)
        {
            timer -= Time.deltaTime;
            if (timer < 0) timer = remainTime;
            minuteLabel.text = GetFormattedMinute(timer);
            secondLabel.text = GetFormattedSecond(timer);
            yield return null;
        }
    }

　　/// <summary>
    /// 整形された分文字列を取得
    /// </summary>
    /// <param name="time">ミリ秒</param>
    /// <returns>nフォーマットの文字列</returns>
    private string GetFormattedMinute(float millisecondTime)
    {
        int minute = Mathf.FloorToInt(millisecondTime / 60f);
        return string.Format("{0}", minute);
    }

　　/// <summary>
    /// 整形された秒文字列を取得
    /// </summary>
    /// <param name="time">ミリ秒</param>
    /// <returns>nフォーマットの文字列</returns>
    private string GetFormattedSecond(float millisecondTime)
    {
        int second = Mathf.FloorToInt(millisecondTime % 60f);
        return string.Format("{0:D2}", second);
    }
    
     /// <summary>
    /// 整形された時間文字列を取得
    /// </summary>
    /// <param name="time">ミリ秒</param>
    /// <returns>n:nnフォーマットの文字列</returns>
    private string GetFormattedTime(float time)
    {
        int minute = Mathf.FloorToInt(time / 60f);
        int second = Mathf.FloorToInt(time % 60f);
        string formattedTime = string.Format("{0}:{1:D2}", minute, second);
        return formattedTime;
    }

    #endregion
}