added more correct panchanga calculations. can be added more panchanga components.

Author: khumnath

bikram-calendar/src/constants.ts

@@ -0,0 +1,88 @@
+/**
+ * Panchanga Calculator - Hindu Astrological Calendar Calculator
+ * Copyright (C) 2025 Khumnath Cg <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/** Array of Tithi names (lunar days) in the Hindu calendar.
+ * Contains 30 entries representing the lunar phases:
+ * - First 15 entries are for Shukla Paksha (waxing moon phase)
+ * - Last 15 entries are for Krishna Paksha (waning moon phase)
+ * @readonly
+ */
+export const tithi = [
+    "Pratipada", "Dwitiya", "Tritiya", "Chaturthi", "Panchami",
+    "Shashthi", "Saptami", "Ashtami", "Navami", "Dashami", "Ekadashi",
+    "Dwadashi", "Trayodashi", "Chaturdashi", "Purnima", "Pratipada",
+    "Dwitiya", "Tritiya", "Chaturthi", "Panchami", "Shashthi",
+    "Saptami", "Ashtami", "Navami", "Dashami", "Ekadashi",
+    "Dwadashi", "Trayodashi", "Chaturdashi", "Amavasya"
+];
+
+/** Array of Nakshatra names (lunar mansions/constellations) in the Hindu calendar.
+ * Contains 27 entries representing the celestial divisions along the ecliptic
+ * through which the moon passes during its monthly cycle.
+ * @readonly
+ */
+export const nakshatra = [
+    "Ashwini", "Bharani", "Krittika", "Rohini", "Mrigashirsha", "Ardra",
+    "Punarvasu", "Pushya", "Ashlesha", "Magha", "Purva Phalguni", "Uttara Phalguni",
+    "Hasta", "Chitra", "Swati", "Vishakha", "Anuradha", "Jyeshtha", "Mula",
+    "Purva Ashadha", "Uttara Ashadha", "Shravana", "Dhanishta", "Shatabhisha",
+    "Purva Bhadrapada", "Uttara Bhadrapada", "Revati"
+];
+
+/** Array of Rashi names (zodiac signs) in the Hindu calendar.
+ * Contains 12 entries representing the zodiacal constellations
+ * through which the sun appears to pass during its yearly cycle.
+ * @readonly
+ */
+export const rashi = [
+    "Mesh", "Vrish", "Mithun", "Kark", "Singh", "Kanya",
+    "Tula", "Vrischik", "Dhanu", "Makar", "Kumbh", "Meen"
+];
+
+/** Array of Karana names (half of a lunar day) in the Hindu calendar.
+ * Contains 11 entries representing the different karanas that repeat
+ * in a cycle throughout the lunar month.
+ * @readonly
+ */
+export const karan = [
+    "Bava", "Balava", "Kaulava", "Taitula", "Garija", "Vanija",
+    "Visti", "Sakuni", "Chatuspada", "Naga", "Kimstughna"
+];
+
+/** Array of Yoga names in the Hindu calendar.
+ * Contains 27 entries representing the angular relationship
+ * between the sun and moon, calculated by their joint motion.
+ * @readonly
+ */
+export const yoga = [
+    "Vishkambha", "Prithi", "Ayushman", "Saubhagya", "Shobhana",
+    "Atiganda", "Sukarman", "Dhrithi", "Shoola", "Ganda", "Vridhi",
+    "Dhruva", "Vyaghata", "Harshana", "Vajra", "Siddhi", "Vyatipata",
+    "Variyan", "Parigha", "Shiva", "Siddha", "Sadhya", "Shubha", "Shukla",
+    "Bramha", "Indra", "Vaidhruthi"
+];
+
+/** Array of Solar Month names in the Hindu calendar (Nepal variant).
+ * Contains 12 entries representing the solar months
+ * as used in the traditional Nepali calendar.
+ * @readonly
+ */
+export const solarMonthNames = [
+    "Baisakh", "Jestha", "Ashadh", "Shrawan", "Bhadra", "Ashwin",
+    "Kartik", "Mangsir", "Poush", "Magh", "Falgun", "Chaitra"
+];

bikram-calendar/src/index.ts

@@ -25,4 +25,4 @@ export {
   getTithiNamesEn,
   getPakshaNames,
   type TithiResult
-} from './tithi';
+} from './panchanga';