import { Reel } from '../../core/Reel.js';
import { SpeedProfile } from '../../config/types.js';
/**
 * Abstract base for reel spin phases.
 *
 * Each phase represents one stage of the spin lifecycle:
 * START → SPIN → ANTICIPATION → STOP.
 *
 * Phases are entered and exited by SpinController, and can be skipped
 * if marked as skippable and the user triggers skip/slam-stop.
 *
 * @typeParam TConfig - Phase-specific configuration type.
 */
export declare abstract class ReelPhase<TConfig = void> {
    abstract readonly name: string;
    abstract readonly skippable: boolean;
    protected _reel: Reel;
    protected _speed: SpeedProfile;
    protected _resolve: (() => void) | null;
    protected _isActive: boolean;
    constructor(reel: Reel, speed: SpeedProfile);
    get reel(): Reel;
    get isActive(): boolean;
    /** Enter the phase. Returns a promise that resolves when the phase is complete. */
    run(config: TConfig): Promise<void>;
    /** Skip the phase immediately (if skippable). */
    skip(): void;
    /** Force-complete the phase regardless of skippable flag. */
    forceComplete(): void;
    /** Called each frame while the phase is active. */
    abstract update(deltaMs: number): void;
    /** Subclass: set up the phase (start tweens, set speed, etc). */
    protected abstract onEnter(config: TConfig): void;
    /** Subclass: clean up when skipped or force-completed. */
    protected abstract onSkip(): void;
    /** Call when the phase naturally completes. */
    protected _complete(): void;
}
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