49 lines
1.6 KiB
TypeScript
49 lines
1.6 KiB
TypeScript
import { GameClock, type GameClockMode } from '@sammo-ts/common';
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import type { DatabaseClient } from '../context.js';
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export interface CurrentGameTime {
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now: Date;
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tick: number | null;
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mode: GameClockMode | null;
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dateToTick(date: Date): number | null;
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}
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export const loadCurrentGameTime = async (db: DatabaseClient, wallNow = new Date()): Promise<CurrentGameTime> => {
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if (!db.worldState) {
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return { now: wallNow, tick: null, mode: null, dateToTick: () => null };
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}
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const state = await db.worldState.findFirst({
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orderBy: { id: 'asc' },
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select: {
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clockBaseTime: true,
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clockTick: true,
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clockMode: true,
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clockWallAnchor: true,
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tickSeconds: true,
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},
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});
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if (!state?.clockBaseTime || state.clockTick === null || !state.clockWallAnchor) {
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return { now: wallNow, tick: null, mode: null, dateToTick: () => null };
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}
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const mode: GameClockMode = state.clockMode === 'manual' ? 'manual' : 'realtime';
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const storedTick = Number(state.clockTick);
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if (!Number.isSafeInteger(storedTick)) {
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throw new Error(`world_state.clock_tick is outside the JavaScript safe integer range: ${state.clockTick}`);
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}
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const clock = new GameClock({
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baseTime: state.clockBaseTime,
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tick: storedTick,
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mode,
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wallAnchor: state.clockWallAnchor,
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turnSeconds: state.tickSeconds,
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});
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const tick = clock.nowTick(wallNow);
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return {
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now: clock.tickToDate(tick),
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tick,
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mode,
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dateToTick: (date) => clock.dateToTick(date),
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};
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};
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