技術標籤：Unity2D教程

遊戲的時間與系統時間肯定是不一樣的，我採取的是現實世界的一秒鐘為遊戲內的一分鐘。

實際維護上一次儲存的遊戲時間和載入存檔的系統時間，那麼當前的遊戲世界就是【當前的系統時間-載入存檔的系統時間】的秒數作為分鐘數加到儲存的遊戲時間即可。

/* 
 *  Author : Jk_Chen
 */

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[System.Serializable]
public class GameTime
{
    public
 
 int Day, Hour, Minute;
    public GameTime() { }
    public GameTime(int Day,int Hour,int Minute) {
        this.Day = Day;
        this.Hour = Hour;
        this.Minute = Minute;
    }
    /// <summary>
    /// 開始遊戲時的系統時間
    /// </summary>
    public static System.DateTime StartTime;
    /// <summary>
 

    /// 開始遊戲時的遊戲時間
    /// </summary>
    public static GameTime StartSaveGameTime;
    public static GameTime Now
    {
        get
        {
            return StartSaveGameTime + System.Convert.ToInt32((System.DateTime.Now - StartTime).TotalSeconds * GameConfig.timeMultiple);
        }
    }
    /// <summary>
 

    /// 總秒數
    /// </summary>
    public int MinuteCount{
        get{
            return Day * 24 * 60 + Hour * 60 + Minute;
        }
    }
    /// <summary>
    /// 當前天的總秒數
    /// </summary>
    public int MinuteCountIgnoreDay
    {
        get
        {
            return Hour * 60 + Minute;
        }
    }
    public static GameTime MinutesToGameTine(int minutes)
    {
        return new GameTime(minutes / 24 / 60, minutes / 60 % 24, minutes % 60);
    }

    /// <summary>
    /// 帶上日期的比較，如果不帶日期直接用><=
    /// </summary>
    /// <param name="time"></param>
    /// <returns></returns>
    public int CompareTo(GameTime time)
    {
        int t1 = MinuteCount;
        int t2 = time.MinuteCount;
        if (t1 == t2) return 0;
        if (t1 > t2) return 1;
        return -1;
    }


    public static bool operator <(GameTime a, GameTime b)
    {
        if (a.Hour != b.Hour) return a.Hour < b.Hour;
        return a.Minute < b.Minute;
    }
    public static bool operator >(GameTime a, GameTime b)
    {
        return b < a;
    }
    public static bool operator ==(GameTime a, GameTime b)
    {
        return !(a < b) && !(b < a);
    }
    public static bool operator !=(GameTime a, GameTime b)
    {
        return a < b || b < a;
    }
    public static bool operator >=(GameTime a, GameTime b)
    {
        return !(a < b);
    }
    public static bool operator <=(GameTime a, GameTime b)
    {
        return !(b < a);
    }

    public static GameTime operator +(GameTime a, int minute)
    {
        GameTime res = new GameTime(a.Day, a.Hour, a.Minute);
        res.Minute += minute;
        if (res.Minute >= 60)
        {
            res.Hour += res.Minute / 60;
            res.Minute %= 60;
        }
        if (res.Hour >= 24)
        {
            res.Day += res.Hour / 24;
            res.Hour %= 24;
        }
        return res;
    }

    /// <summary>
    /// 返回不考慮日期的時間間隔，單位為秒數
    /// </summary>
    /// <param name="a"></param>
    /// <param name="b"></param>
    /// <returns></returns>
    public static int operator -(GameTime a, GameTime b)
    {
        return a.MinuteCountIgnoreDay - b.MinuteCountIgnoreDay;
    }

    public override string ToString()
    {
        return string.Format("第{0}日 {1:D2}:{2:D2}", Day, Hour, Minute);
    }
}

配置類內容

    // 一格亮度為0.1光強
    public static float maxLightIntensity = 1;
    public static float minLightIntensity = 0.15f;
    // 每天的光照強度變化時間點
    public static GameTime beginLight = new GameTime(0, 4, 30);
    public static GameTime endLight = new GameTime(0, 18, 30);
    public static GameTime beginMaxLight = new GameTime(0, 9, 30);
    public static GameTime endMaxLight = new GameTime(0, 14, 30);
    // 時間倍速流動（測試用）
    public static float timeMultiple = 30;

光照類比較簡單就不多說了

/* 
 *  Author : Jk_Chen
 */

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Experimental.Rendering.Universal;

public class GlobalManager : MonoBehaviour
{
    new Light2D light;
    GameTime beginLight, endLight;
    GameTime beginMaxLight, endMaxLight;

    void Awake()
    {
        light = transform.Find("Light").GetComponent<Light2D>();
        beginLight = GameConfig.beginLight;
        endLight = GameConfig.endLight;
        beginMaxLight = GameConfig.beginMaxLight;
        endMaxLight = GameConfig.endMaxLight;
    }
    public GameTime now;

    void Update()
    {
        if (Helper.DealInterval(1))
        {
            GameTime now = GameTime.Now;
            if(now >= endLight || now <= beginLight)//深夜
            {
                light.intensity = GameConfig.minLightIntensity;
            }
            else if(now >= beginMaxLight && now <= endMaxLight)//正午
            {
                light.intensity = GameConfig.maxLightIntensity;
            }
            else if(now < beginMaxLight)//上午
            {
                light.intensity = GameConfig.minLightIntensity + (GameConfig.maxLightIntensity - GameConfig.minLightIntensity) * (now - beginLight) / (beginMaxLight - beginLight);
            }
            else//下午
            {
                light.intensity = GameConfig.minLightIntensity + (GameConfig.maxLightIntensity - GameConfig.minLightIntensity) * (now - endLight) / (endMaxLight - endLight);
            }
        }
    }
}

一秒30分鐘演示版