export type StoryWindow = 'low-tide' | 'night' | 'blood-low' | 'blood-moon' | 'red-low' | 'ice-hold' | 'mill-flow';
export declare const STORY_WINDOWS: readonly StoryWindow[];
export declare function storyWindowOpen(window: StoryWindow, nowMs: number): boolean;
/**
 * Which opening of the window `nowMs` is in: a number that changes whenever the window closes and opens again (the tide cycle for the
 * tides, the lamp night for the moon). An ordered touch step keeps the instance it began in with its progress, so progress made in one
 * low, or one night, cannot be carried over a logout into the next (storyQuests.ts onTouch).
 */
export declare function storyWindowInstance(window: StoryWindow, nowMs: number): number;
/** The line added after a step's `wait` when its window is shut ('' when there is nothing to add). */
export declare function storyWindowLine(window: StoryWindow, nowMs: number): string;
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