import { GlitchQueueItem, LineState, LineKey } from './constants.js';
export type TransitionDirection = 'expand' | 'shrink' | 'neutral';
export declare function detectDirection(oldText: string, newText: string): TransitionDirection;
export declare function buildGlitchQueue(oldText: string, newText: string, maxStart?: number, maxLength?: number, direction?: TransitionDirection): GlitchQueueItem[];
export declare function buildMsgGlitchQueue(oldText: string, newText: string, direction?: TransitionDirection): GlitchQueueItem[];
export declare function computeGlitchFrame(queue: GlitchQueueItem[], frame: number, rng: () => string, currentText?: string, seed?: number): string;
export declare function isGlitchComplete(queue: GlitchQueueItem[], frame: number): boolean;
export declare function applyScramble(text: string, state: LineState, now: number, lineKey?: LineKey, rng?: () => string, glitchEnabled?: boolean): string;
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