import type { AccessibilitySettings, Dimensions, QualityLevel } from "../../../core/domain/types.js";
import type { IBackgroundSystem } from "../../../core/contracts/IBackgroundSystem.js";
export declare class CosmicBackgroundSystem implements IBackgroundSystem {
    private quality;
    private isInitialized;
    private lastDimensions;
    private renderingService;
    private configurationService;
    private calculationService;
    private geoLocationProvider;
    private parallaxStarSystem;
    private nebulaSystem;
    private proceduralNebulaSystem;
    private constellationSystem;
    private ufoSystem;
    private cometSystem;
    private milkyWaySystem;
    private milkyWayParticleSystem;
    private auroraSystem;
    private shootingStarSystem;
    private shootingStarState;
    private cfg;
    private Q;
    private a11y;
    private constructor();
    static create(): CosmicBackgroundSystem;
    initialize(dim: Dimensions, q: QualityLevel): void;
    update(dim: Dimensions, frameMultiplier?: number): void;
    draw(ctx: CanvasRenderingContext2D, dim: Dimensions): void;
    setQuality(q: QualityLevel): void;
    setAccessibility(s: AccessibilitySettings): void;
    /**
     * Control visibility of individual layers (for Cosmic Lab)
     */
    setLayerVisibility(layers: {
        stars?: boolean;
        nebula?: boolean;
        aurora?: boolean;
        milkyWay?: boolean;
        meteors?: boolean;
        comets?: boolean;
        ufo?: boolean;
    }): void;
    /**
     * Manually trigger a meteor (shooting star) to appear
     */
    triggerMeteor(): void;
    /**
     * Manually trigger a comet to appear
     */
    triggerComet(): void;
    /**
     * Check if a comet is currently visible
     */
    isCometActive(): boolean;
    /**
     * Manually trigger UFO to appear (Easter egg)
     * Auto-enables UFO layer if not already enabled
     */
    triggerUFO(): void;
    /**
     * Check if UFO is currently visible
     */
    isUFOActive(): boolean;
    /**
     * Get current UFO state for UI display
     */
    getUFOState(): string | null;
    commandUFOScanStar(): boolean;
    commandUFOScanGround(): void;
    commandUFOPause(): void;
    commandUFOWander(): void;
    commandUFODrift(): void;
    commandUFOExit(): void;
    /**
     * Trigger UFO with specific entrance animation
     */
    triggerUFOWithEntrance(entranceType: import("./UFOSystem.js").UFOEntranceType): void;
    /**
     * Command UFO to exit with specific animation
     */
    commandUFOExitWith(exitType: import("./UFOSystem.js").UFOExitType): void;
    /**
     * Get available entrance types for UI
     */
    getUFOEntranceTypes(): import("./UFOSystem.js").UFOEntranceType[];
    /**
     * Get available exit types for UI
     */
    getUFOExitTypes(): import("./UFOSystem.js").UFOExitType[];
    /**
     * Get current UFO entrance/exit types
     */
    getUFOEntranceExitTypes(): {
        entrance: import("./UFOSystem.js").UFOEntranceType;
        exit: import("./UFOSystem.js").UFOExitType;
    } | null;
    /**
     * Handle click on canvas - UFO may react
     * @param clickX - Click X position in canvas coordinates
     * @param clickY - Click Y position in canvas coordinates
     * @returns true if UFO reacted to the click
     */
    handleCanvasClick(clickX: number, clickY: number): boolean;
    /**
     * Get current UFO mood
     */
    getUFOMood(): import("./UFOSystem.js").UFOMood | null;
    /**
     * Get UFO tiredness level (0-1)
     */
    getUFOTiredness(): number | null;
    /**
     * Set UFO mood externally
     */
    setUFOMood(mood: import("./UFOSystem.js").UFOMood): void;
    /**
     * Reset UFO tiredness to 0 (for testing)
     */
    resetUFOTiredness(): void;
    /**
     * Get count of scanned stars in UFO's memory
     */
    getUFOScannedStarsCount(): number;
    /**
     * Clear UFO's memory of scanned stars
     */
    clearUFOScannedStars(): void;
    /**
     * Trigger UFO wobble animation (for testing)
     */
    triggerUFOWobble(type: import("./UFOSystem.js").WobbleType): void;
    /**
     * Get UFO heading in radians
     */
    getUFOHeading(): number | null;
    /**
     * Get UFO position for UI display
     */
    getUFOPosition(): {
        x: number;
        y: number;
    } | null;
    private layerVisibility;
    /**
     * Handle viewport resize by adapting star systems to new dimensions
     */
    handleResize(_oldDimensions: Dimensions, newDimensions: Dimensions): void;
    cleanup(): void;
    private getOptimizedConfig;
}
//# sourceMappingURL=CosmicBackgroundSystem.d.ts.map