private static 忌日 Calc月破(LnDate date)
{
var 月 = new GanZhi(date.MonthGZ);
var 日 = new GanZhi(date.DayGZ);
return(Math.Abs(月.Zhi.Index - 日.Zhi.Index) == 6 ? LnBase.忌日.月破 : 忌日.百无禁忌);
}
private BaZiList <GanZhi> InitBaZiFromDateTime(DateTime date, bool 确定时辰)
{
this.datetime = new LnDate(date);
this.time = 确定时辰 ? date.TimeOfDay : TimeSpan.Zero;
GanZhi 年 = new GanZhi(this.datetime.YearGZ);
GanZhi 月 = new GanZhi(this.datetime.MonthGZ);
GanZhi 日 = new GanZhi(this.datetime.DayGZ);
LnDate 明天 = this.datetime.Add(1);
if (date.Hour >= 23)
{
日 = 日.Add(1);
年 = new GanZhi(明天.YearGZ);
月 = new GanZhi(明天.MonthGZ);
}
GanZhi 时 = GanZhi.Zero;
if (确定时辰)
{
Zhi 时支 = Zhi.Get((int)((date.Hour + 1) / 2) % 12);
时 = 日.Gan.起月时(时支, 柱位.时);
}
return(BaZiList.Create(年, 月, 日, 时));
}
private static 忌日 Calc岁破(LnDate date)
{
var 年 = new GanZhi(date.YearGZ);
var 日 = new GanZhi(date.DayGZ);
return(Math.Abs(年.Zhi.Index - 日.Zhi.Index) == 6 ? LnBase.忌日.岁破 : 忌日.百无禁忌);
}
public static HuangLi 黄历日(LnDate date)
{
HuangLi huanli = new HuangLi();
huanli.忌日 |= LnBase.Calc岁破(date);
huanli.忌日 |= LnBase.Calc月破(date);
huanli.忌日 |= LnBase.Calc上朔(date);
huanli.忌日 |= LnBase.Calc杨公忌日(date);
GanZhi yue = new GanZhi(date.MonthGZ);
GanZhi ri = new GanZhi(date.DayGZ);
huanli.建除 = JianChu.Get(yue.Zhi, ri.Zhi);
return(huanli);
}
/// <summary>
/// 计算年份下标差值
/// </summary>
/// <param name="year">要查找的年干支</param>
/// <param name="startYear">开始的年份</param>
/// <param name="forward">方向</param>
/// <returns></returns>
private static int CalcYearDiff(GanZhi year, int startYear, 方向 forward)
{
LnDate lndate = new LnDate(startYear, 2, 10);
int yearDiff = year.Index - (new GanZhi(lndate.YearGZ)).Index;
if (forward == 方向.逆行)
{
yearDiff = yearDiff < 0 ? yearDiff : (yearDiff - 60);
}
else
{
yearDiff = yearDiff < 0 ? (yearDiff + 60) : yearDiff;
}
return(yearDiff);
}
public static DateTime 查找农历(int year, string yue, string day, bool leap = false)
{
LnDate lndate = new LnDate(year, 1, 1);
while (lndate.Year == year)
{
if (lndate.MonthNL == yue && lndate.DayNL == day && string.IsNullOrEmpty(lndate.Leap) != leap)
{
return(lndate.datetime);
}
lndate = lndate.Add(1);
}
throw new Exception("找不到结果！");
}
public static TimeSpan 计算节气时间差(DateTime date, 方向 f)
{
LnDate 节气日 = LnBase.查找节气(date.Year, date.Month);
DateTime 具体时间 = 节气日.datetime + 节气日.JieQiTime;
if (f == 方向.顺行 && date > 具体时间)
{
节气日 = LnBase.查找节气(date.Year, date.Month + 1);
}
else if (f == 方向.逆行 && date < 具体时间)
{
节气日 = LnBase.查找节气(date.Year, date.Month - 1);
}
具体时间 = 节气日.datetime + 节气日.JieQiTime;
return(具体时间 - date);
}
/// <summary>
/// 用八字寻找公历时间。
/// </summary>
/// <param name="year">年干支</param>
/// <param name="month">月干支</param>
/// <param name="day">日干支</param>
/// <param name="startYear">开始时间</param>
/// <param name="forward">方向： -1 往以前日子， 1 往后面的日子</param>
/// <returns></returns>
public static DateTime 查找八字(string year, string month, string day, int startYear, 方向 forward)
{
// 看年月是否匹配
GanZhi n = new GanZhi(year);
GanZhi m = new GanZhi(month);
if (n.Gan.起月时(m.Zhi, 柱位.月) != m)
{
throw new ArgumentException($"'{year}'年不存在'{month}'月。");
}
// 开始运算
int yearDiff = CalcYearDiff(new GanZhi(year), startYear, forward);
int monthIndex = m.Zhi.Index == 0 ? 12 : m.Zhi.Index;
startYear += m.Zhi.Index == 1 ? 1 : 0;
// 上下搜索600年
for (int periode = 0; periode < 10; periode++)
{
int f = forward == 方向.顺行 ? 1 : -1;
LnDate lndate = new LnDate(startYear + yearDiff + f * 60 * periode, monthIndex, 1);
while (lndate.JieQiTime == TimeSpan.Zero)
{
lndate = lndate.Add(1);
}
if (lndate.YearGZ != year || lndate.MonthGZ != month)
{
throw new Exception("计算思路有错误！");
}
while (lndate.MonthGZ == month)
{
if (lndate.DayGZ == day)
{
return(lndate.datetime);
}
lndate = lndate.Add(1);
}
}
throw new Exception("六百年内找不到结果！");
}
private IEnumerable <ShiYun> 起流年(DateTime start, DateTime end)
{
List <ShiYun> res = new List <ShiYun>();
for (int i = 0; i <= 10; i++)
{
LnDate d = new LnDate(start.AddYears(i));
ShiYun ln = new ShiYun(new GanZhi(d.YearGZ), ShiYun.YunType.流年, this.time.Bazi);
LnDate 立春 = LnBase.查找节气(start.AddYears(i).Year, 2);
ln.Start = 立春.datetime + 立春.JieQiTime;
ln.End = ((DateTime)ln.Start).AddYears(1);
res.Add(ln);
// 超过时限，退出。主要是为起运前的流年考虑的。其它都是十年期。
if (((DateTime)ln.End).Year > end.Year)
{
break;
}
}
return(res);
}
private static 忌日 Calc杨公忌日(LnDate date)
{
string flag = date.MonthNL + "月" + date.DayNL;
return(LnBase.杨公Def.FirstOrDefault(y => y == flag) != null ? LnBase.忌日.杨公十三忌 : 忌日.百无禁忌);
}
/// <summary>
/// 甲年癸亥日，乙年己巳日。。。。。。
/// var arr = ["癸亥", "己巳", "乙亥", "辛巳", "丁亥", "癸巳", "己亥", "乙巳", "辛亥", "丁巳"];
/// </summary>
/// <param name="date"></param>
/// <param name="type"></param>
/// <returns></returns>
private static 忌日 Calc上朔(LnDate date)
{
var 年 = new GanZhi(date.YearGZ);
return(LnBase.朔Def[年.Gan.Index] == date.DayGZ ? LnBase.忌日.朔 : 忌日.百无禁忌);
}