/**
 * QuestManager.ts
 *
 * Quest lifecycle: creation, objectives, prerequisites,
 * state tracking, and completion logic.
 *
 * @module gameplay
 */
export type QuestStatus = 'locked' | 'available' | 'active' | 'completed' | 'failed';
export type ObjectiveType = 'collect' | 'kill' | 'reach' | 'interact' | 'escort' | 'custom';
export interface QuestObjective {
    id: string;
    type: ObjectiveType;
    description: string;
    target: string;
    required: number;
    current: number;
    completed: boolean;
    optional: boolean;
}
export interface QuestDef {
    id: string;
    name: string;
    description: string;
    category: string;
    status: QuestStatus;
    objectives: QuestObjective[];
    prerequisites: string[];
    level: number;
    timeLimit: number;
    elapsed: number;
    repeatable: boolean;
    completionCount: number;
}
export declare class QuestManager {
    private quests;
    private listeners;
    addQuest(config: Omit<QuestDef, 'status' | 'elapsed' | 'completionCount'> & {
        status?: QuestStatus;
    }): QuestDef;
    getQuest(id: string): QuestDef | undefined;
    removeQuest(id: string): boolean;
    activate(id: string): boolean;
    abandon(id: string): boolean;
    updateObjective(questId: string, objectiveId: string, progress: number): boolean;
    update(dt: number): void;
    private checkAvailability;
    recheckAll(): void;
    onEvent(listener: (event: string, quest: QuestDef) => void): void;
    private emit;
    getByStatus(status: QuestStatus): QuestDef[];
    getByCategory(category: string): QuestDef[];
    getQuestCount(): number;
    getActiveCount(): number;
    getCompletedCount(): number;
    getProgress(id: string): number;
}
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