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/*
* Copyright (C) 2022 NotEnoughUpdates contributors
*
* This file is part of NotEnoughUpdates.
*
* NotEnoughUpdates is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* NotEnoughUpdates 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
*/
package io.github.moulberry.notenoughupdates.util;
import java.time.Instant;
// cryptic helped me a "little" with the calculation
public class StarCultCalculator {
public static final String[] SEASONS = new String[]{
"Early Spring",
"Spring",
"Late Spring",
"Early Summer",
"Summer",
"Late Summer",
"Early Autumn",
"Autumn",
"Late Autumn",
"Early Winter",
"Winter",
"Late Winter",
};
public static final long HOUR_MS = 50000;
public static final long DAY_MS = 24 * HOUR_MS;
public static final long MONTH_MS = 31 * DAY_MS;
public static final long YEAR_MS = SEASONS.length * MONTH_MS;
public static final long YEAR_0 = 1560275700000L;
public static int getSkyblockYear() {
long now = Instant.now().toEpochMilli();
long currentYear = Math.floorDiv((now - YEAR_0), YEAR_MS);
return (int) (currentYear + 1);
}
private static boolean active = false;
private static long activeTill = 0;
public static String getNextStarCult() {
Instant cultStart = getNextStarCultTime();
long l = System.currentTimeMillis();
if (cultStart.toEpochMilli() - l <= 1000) {
active = true;
activeTill = l + 300000;
}
if (l > activeTill) {
active = false;
activeTill = 0;
}
if (active && activeTill != 0) {
return "Active! (" + Utils.prettyTime(activeTill - System.currentTimeMillis()) + ")";
}
return Utils.prettyTime(cultStart.toEpochMilli() - l);
}
public static Instant getNextStarCultTime() {
return getNextStarCultTime(Instant.now());
}
public static Instant getNextStarCultTime(Instant after) {
long nowEpoch = after.toEpochMilli();
long currentOffset = (nowEpoch - YEAR_0) % YEAR_MS;
int currentMonth = (int) Math.floorDiv(currentOffset, MONTH_MS);
int currentDay = (int) Math.floorDiv((currentOffset - (long) currentMonth * MONTH_MS) % MONTH_MS, DAY_MS) + 1;
int out = 7;
if (currentDay > 21) {
out = 28;
} else if (currentDay > 14) {
out = 21;
} else if (currentDay > 7) {
out = 14;
}
Instant cultStart = Instant.ofEpochMilli(
YEAR_0 + (getSkyblockYear() - 1) * YEAR_MS + currentMonth * MONTH_MS + (out - 1) * DAY_MS);
if (cultStart.isBefore(after)) {
int curYearCult = getSkyblockYear() - 1;
if (out == 28) {
out = 7;
if (currentMonth == 12) {
currentMonth = 1;
curYearCult++;
} else {
currentMonth++;
}
} else {
out += 7;
}
out--;
cultStart = Instant.ofEpochMilli(YEAR_0 + (curYearCult) * YEAR_MS + currentMonth * MONTH_MS + out * DAY_MS);
}
return cultStart;
}
}
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