import type { GamePlugins } from './game-logic';
import type { RenderPlugins } from './game-renderer';
import type { EngineOptions, GameStats } from './types';
/**
 * Framework-agnostic "detection sweep" canvas engine.
 * A scan line crosses a dot grid; dots react as it passes; rare accent events
 * appear behind the sweep. Two textures share this engine, selected via `texture`.
 *
 * Performance notes:
 * - All dots use `fillRect` (no `arc`/`beginPath` overhead).
 * - Color strings are pre-computed in palettes — zero allocation in the hot loop.
 * - No `shadowBlur` — glow is faked with layered rects.
 * - Game sim folds into the existing frame() behind mode guards.
 * - Bounded pools (MAX_TARGETS, MAX_BULLETS). No per-frame allocation.
 */
export interface SweepEngine {
    start(): void;
    stop(): void;
    setOptions(next: Partial<EngineOptions>): void;
    renderStatic(t?: number): void;
    resize(): void;
    setGameActive(active: boolean): void;
    catchAt(x: number, y: number): boolean;
    setMode(mode: 'idle' | 'armed'): void;
    startRound(): void;
    exitGame(): void;
    setCannonDir(dir: number): void;
    setFiring(on: boolean): void;
    onStats(cb: (s: GameStats) => void): void;
    setExclusion(box: {
        width: number;
        height: number;
    } | null): void;
    celebrate(score: number): void;
    setSound(on: boolean): void;
    setPlugins(plugins: {
        game: GamePlugins;
        render: RenderPlugins;
    }): void;
}
export declare function createSweepEngine(canvas: HTMLCanvasElement, options: EngineOptions): SweepEngine;