lunar-typescript-pro
Version:
lunar是一款无第三方依赖的公历(阳历)、农历(阴历、老黄历)、佛历和道历工具，支持星座、儒略日、干支、生肖、节气、节日、彭祖百忌、每日宜忌、吉神宜趋、凶煞宜忌、吉神(喜神/福神/财神/阳贵神/阴贵神)方位、胎神方位、冲煞、纳音、星宿、八字、五行、十神、建除十二值星、青龙名堂等十二神、黄道日及吉凶等。lunar is a calendar library for Solar and Chinese Lunar.
316 lines (315 loc) • 10.8 kB
JavaScript
import { LunarMonth } from "./LunarMonth.mjs";
import { ShouXingUtil } from "./ShouXingUtil.mjs";
import { Solar } from "./Solar.mjs";
import { LunarUtil } from "./LunarUtil.mjs";
import { NineStar } from "./NineStar.mjs";
export class LunarYear {
_year;
_ganIndex;
_zhiIndex;
_months;
_jieQiJulianDays;
static YUAN = ["\u4E0B", "\u4E0A", "\u4E2D"];
static YUN = ["\u4E03", "\u516B", "\u4E5D", "\u4E00", "\u4E8C", "\u4E09", "\u56DB", "\u4E94", "\u516D"];
static _LEAP_11 = [75, 94, 170, 265, 322, 398, 469, 553, 583, 610, 678, 735, 754, 773, 849, 887, 936, 1050, 1069, 1126, 1145, 1164, 1183, 1259, 1278, 1308, 1373, 1403, 1441, 1460, 1498, 1555, 1593, 1612, 1631, 1642, 2033, 2128, 2147, 2242, 2614, 2728, 2910, 3062, 3244, 3339, 3616, 3711, 3730, 3825, 4007, 4159, 4197, 4322, 4341, 4379, 4417, 4531, 4599, 4694, 4713, 4789, 4808, 4971, 5085, 5104, 5161, 5180, 5199, 5294, 5305, 5476, 5677, 5696, 5772, 5791, 5848, 5886, 6049, 6068, 6144, 6163, 6258, 6402, 6440, 6497, 6516, 6630, 6641, 6660, 6679, 6736, 6774, 6850, 6869, 6899, 6918, 6994, 7013, 7032, 7051, 7070, 7089, 7108, 7127, 7146, 7222, 7271, 7290, 7309, 7366, 7385, 7404, 7442, 7461, 7480, 7491, 7499, 7594, 7624, 7643, 7662, 7681, 7719, 7738, 7814, 7863, 7882, 7901, 7939, 7958, 7977, 7996, 8034, 8053, 8072, 8091, 8121, 8159, 8186, 8216, 8235, 8254, 8273, 8311, 8330, 8341, 8349, 8368, 8444, 8463, 8474, 8493, 8531, 8569, 8588, 8626, 8664, 8683, 8694, 8702, 8713, 8721, 8751, 8789, 8808, 8816, 8827, 8846, 8884, 8903, 8922, 8941, 8971, 9036, 9066, 9085, 9104, 9123, 9142, 9161, 9180, 9199, 9218, 9256, 9294, 9313, 9324, 9343, 9362, 9381, 9419, 9438, 9476, 9514, 9533, 9544, 9552, 9563, 9571, 9582, 9601, 9639, 9658, 9666, 9677, 9696, 9734, 9753, 9772, 9791, 9802, 9821, 9886, 9897, 9916, 9935, 9954, 9973, 9992];
static _LEAP_12 = [37, 56, 113, 132, 151, 189, 208, 227, 246, 284, 303, 341, 360, 379, 417, 436, 458, 477, 496, 515, 534, 572, 591, 629, 648, 667, 697, 716, 792, 811, 830, 868, 906, 925, 944, 963, 982, 1001, 1020, 1039, 1058, 1088, 1153, 1202, 1221, 1240, 1297, 1335, 1392, 1411, 1422, 1430, 1517, 1525, 1536, 1574, 3358, 3472, 3806, 3988, 4751, 4941, 5066, 5123, 5275, 5343, 5438, 5457, 5495, 5533, 5552, 5715, 5810, 5829, 5905, 5924, 6421, 6535, 6793, 6812, 6888, 6907, 7002, 7184, 7260, 7279, 7374, 7556, 7746, 7757, 7776, 7833, 7852, 7871, 7966, 8015, 8110, 8129, 8148, 8224, 8243, 8338, 8406, 8425, 8482, 8501, 8520, 8558, 8596, 8607, 8615, 8645, 8740, 8778, 8835, 8865, 8930, 8960, 8979, 8998, 9017, 9055, 9074, 9093, 9112, 9150, 9188, 9237, 9275, 9332, 9351, 9370, 9408, 9427, 9446, 9457, 9465, 9495, 9560, 9590, 9628, 9647, 9685, 9715, 9742, 9780, 9810, 9818, 9829, 9848, 9867, 9905, 9924, 9943, 9962, 1e4];
static _CACHE_YEAR = null;
static fromYear(lunarYear) {
let y;
if (!LunarYear._CACHE_YEAR || LunarYear._CACHE_YEAR.getYear() != lunarYear) {
y = new LunarYear(lunarYear);
LunarYear._CACHE_YEAR = y;
} else {
y = LunarYear._CACHE_YEAR;
}
return y;
}
constructor(lunarYear) {
this._year = lunarYear;
this._months = [];
this._jieQiJulianDays = [];
const offset = lunarYear - 4;
let yearGanIndex = offset % 10;
let yearZhiIndex = offset % 12;
if (yearGanIndex < 0) {
yearGanIndex += 10;
}
if (yearZhiIndex < 0) {
yearZhiIndex += 12;
}
this._ganIndex = yearGanIndex;
this._zhiIndex = yearZhiIndex;
this.compute();
}
compute() {
const jq = [];
const hs = [];
const dayCounts = [];
const months = [];
let i, j;
const currentYear = this._year;
let jd = Math.floor((currentYear - 2e3) * 365.2422 + 180);
let w = Math.floor((jd - 355 + 183) / 365.2422) * 365.2422 + 355;
if (ShouXingUtil.calcQi(w) > jd) {
w -= 365.2422;
}
for (i = 0; i < 26; i++) {
jq.push(ShouXingUtil.calcQi(w + 15.2184 * i));
}
for (i = 0, j = LunarUtil.JIE_QI_IN_USE.length; i < j; i++) {
if (i === 0) {
jd = ShouXingUtil.qiAccurate2(jq[0] - 15.2184);
} else if (i <= 26) {
jd = ShouXingUtil.qiAccurate2(jq[i - 1]);
} else {
jd = ShouXingUtil.qiAccurate2(jq[25] + 15.2184 * (i - 26));
}
this._jieQiJulianDays.push(jd + Solar.J2000);
}
w = ShouXingUtil.calcShuo(jq[0]);
if (w > jq[0]) {
w -= 29.53;
}
for (i = 0; i < 16; i++) {
hs.push(ShouXingUtil.calcShuo(w + 29.5306 * i));
}
for (i = 0; i < 15; i++) {
dayCounts.push(Math.floor(hs[i + 1] - hs[i]));
months.push(i);
}
const prevYear = currentYear - 1;
let leapIndex = 16;
if (LunarYear._LEAP_11.indexOf(currentYear) > -1) {
leapIndex = 13;
} else if (LunarYear._LEAP_12.indexOf(currentYear) > -1) {
leapIndex = 14;
} else if (hs[13] <= jq[24]) {
i = 1;
while (hs[i + 1] > jq[2 * i] && i < 13) {
i++;
}
leapIndex = i;
}
for (j = leapIndex; j < 15; j++) {
months[j] -= 1;
}
const ymc = [11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let fm = -1;
let index = -1;
let y = prevYear;
for (i = 0; i < 15; i++) {
const dm = hs[i] + Solar.J2000;
const v2 = months[i];
let mc = ymc[v2 % 12];
if (1724360 <= dm && dm < 1729794) {
mc = ymc[(v2 + 1) % 12];
} else if (1807724 <= dm && dm < 1808699) {
mc = ymc[(v2 + 1) % 12];
} else if (dm == 1729794 || dm == 1808699) {
mc = 12;
}
if (fm == -1) {
fm = mc;
index = mc;
}
if (mc < fm) {
y += 1;
index = 1;
}
fm = mc;
if (i == leapIndex) {
mc = -mc;
} else if (dm == 1729794 || dm == 1808699) {
mc = -11;
}
this._months.push(new LunarMonth(y, mc, dayCounts[i], hs[i] + Solar.J2000, index));
index++;
}
}
getYear() {
return this._year;
}
getGanIndex() {
return this._ganIndex;
}
getZhiIndex() {
return this._zhiIndex;
}
getGan() {
return LunarUtil.GAN[this._ganIndex + 1];
}
getZhi() {
return LunarUtil.ZHI[this._zhiIndex + 1];
}
getGanZhi() {
return this.getGan() + this.getZhi();
}
getJieQiJulianDays() {
return this._jieQiJulianDays;
}
getDayCount() {
let n = 0;
for (let i = 0, j = this._months.length; i < j; i++) {
const m = this._months[i];
if (m.getYear() == this._year) {
n += m.getDayCount();
}
}
return n;
}
getMonths() {
return this._months;
}
getMonthsInYear() {
const l = [];
for (let i = 0, j = this._months.length; i < j; i++) {
const m = this._months[i];
if (m.getYear() == this._year) {
l.push(m);
}
}
return l;
}
getMonth(lunarMonth) {
for (let i = 0, j = this._months.length; i < j; i++) {
const m = this._months[i];
if (m.getYear() == this._year && m.getMonth() == lunarMonth) {
return m;
}
}
return null;
}
getLeapMonth() {
for (let i = 0, j = this._months.length; i < j; i++) {
const m = this._months[i];
if (m.getYear() == this._year && m.isLeap()) {
return Math.abs(m.getMonth());
}
}
return 0;
}
toString() {
return `${this.getYear()}`;
}
toFullString() {
return `${this.getYear()}\u5E74`;
}
_getZaoByGan(index, name) {
const month = this.getMonth(1);
if (null == month) {
return "";
}
let offset = index - Solar.fromJulianDay(month.getFirstJulianDay()).getLunar().getDayGanIndex();
if (offset < 0) {
offset += 10;
}
return name.replace("\u51E0", LunarUtil.NUMBER[offset + 1]);
}
_getZaoByZhi(index, name) {
const month = this.getMonth(1);
if (null == month) {
return "";
}
let offset = index - Solar.fromJulianDay(month.getFirstJulianDay()).getLunar().getDayZhiIndex();
if (offset < 0) {
offset += 12;
}
return name.replace("\u51E0", LunarUtil.NUMBER[offset + 1]);
}
getTouLiang() {
return this._getZaoByZhi(0, "\u51E0\u9F20\u5077\u7CAE");
}
getCaoZi() {
return this._getZaoByZhi(0, "\u8349\u5B50\u51E0\u5206");
}
getGengTian() {
return this._getZaoByZhi(1, "\u51E0\u725B\u8015\u7530");
}
getHuaShou() {
return this._getZaoByZhi(3, "\u82B1\u6536\u51E0\u5206");
}
getZhiShui() {
return this._getZaoByZhi(4, "\u51E0\u9F99\u6CBB\u6C34");
}
getTuoGu() {
return this._getZaoByZhi(6, "\u51E0\u9A6C\u9A6E\u8C37");
}
getQiangMi() {
return this._getZaoByZhi(9, "\u51E0\u9E21\u62A2\u7C73");
}
getKanCan() {
return this._getZaoByZhi(9, "\u51E0\u59D1\u770B\u8695");
}
getGongZhu() {
return this._getZaoByZhi(11, "\u51E0\u5C60\u5171\u732A");
}
getJiaTian() {
return this._getZaoByGan(0, "\u7532\u7530\u51E0\u5206");
}
getFenBing() {
return this._getZaoByGan(2, "\u51E0\u4EBA\u5206\u997C");
}
getDeJin() {
return this._getZaoByGan(7, "\u51E0\u65E5\u5F97\u91D1");
}
getRenBing() {
return this._getZaoByGan(2, this._getZaoByZhi(2, "\u51E0\u4EBA\u51E0\u4E19"));
}
getRenChu() {
return this._getZaoByGan(3, this._getZaoByZhi(2, "\u51E0\u4EBA\u51E0\u9504"));
}
getYuan() {
return LunarYear.YUAN[Math.floor((this._year + 2696) / 60) % 3] + "\u5143";
}
getYun() {
return LunarYear.YUN[Math.floor((this._year + 2696) / 20) % 9] + "\u8FD0";
}
getNineStar() {
const index = LunarUtil.getJiaZiIndex(this.getGanZhi()) + 1;
const yuan = Math.floor(this._year + 2696) / 60 % 3;
let offset = (62 + yuan * 3 - index) % 9;
if (0 == offset) {
offset = 9;
}
return NineStar.fromIndex(offset - 1);
}
getPositionXi() {
return LunarUtil.POSITION_XI[this._ganIndex + 1];
}
getPositionXiDesc() {
return LunarUtil.POSITION_DESC[this.getPositionXi()];
}
getPositionYangGui() {
return LunarUtil.POSITION_YANG_GUI[this._ganIndex + 1];
}
getPositionYangGuiDesc() {
return LunarUtil.POSITION_DESC[this.getPositionYangGui()];
}
getPositionYinGui() {
return LunarUtil.POSITION_YIN_GUI[this._ganIndex + 1];
}
getPositionYinGuiDesc() {
return LunarUtil.POSITION_DESC[this.getPositionYinGui()];
}
getPositionFu(sect = 2) {
return (1 == sect ? LunarUtil.POSITION_FU : LunarUtil.POSITION_FU_2)[this._ganIndex + 1];
}
getPositionFuDesc(sect = 2) {
return LunarUtil.POSITION_DESC[this.getPositionFu(sect)];
}
getPositionCai() {
return LunarUtil.POSITION_CAI[this._ganIndex + 1];
}
getPositionCaiDesc() {
return LunarUtil.POSITION_DESC[this.getPositionCai()];
}
getPositionTaiSui() {
return LunarUtil.POSITION_TAI_SUI_YEAR[this._zhiIndex];
}
getPositionTaiSuiDesc() {
return LunarUtil.POSITION_DESC[this.getPositionTaiSui()];
}
next(n) {
return LunarYear.fromYear(this._year + n);
}
}