/**
 * CometSystem - The "Wow Moment"
 *
 * Creates spectacular comet appearances with:
 * - Bright nucleus with fuzzy coma (multi-layer radial glow)
 * - Dual tail system:
 *   - Ion tail: straight, blue, pushed away from sun
 *   - Dust tail: curved, white/yellow, following orbital path
 * - Particle debris field trailing behind
 * - Arc trajectory across the sky
 * - Size/brightness changes as comet approaches and recedes
 *
 * Visual approach inspired by Deep Ocean's jellyfish:
 * - Multi-segment tails like tentacles
 * - Traveling glow effects like bioluminescence
 * - Multiple independent animation phases
 */
import type { AccessibilitySettings } from "../../../core/domain/types.js";
import type { Dimensions, QualityLevel } from "../../../core/domain/types.js";
import type { StarConfig } from "../domain/models/cosmic-models.js";
import type { ICosmicCalculationService } from "./contracts/ICosmicCalculationService.js";
export interface CometConfig {
    size: number;
    speed: number;
    color: string;
    tailLength: number;
    interval: number;
    enabledOnQuality: QualityLevel[];
}
export declare class CometSystem {
    private comet;
    private timer;
    private config;
    private starConfig;
    private calculationService;
    private quality;
    constructor(config: CometConfig, starConfig: StarConfig, calculationService: ICosmicCalculationService);
    update(dim: Dimensions, a11y: AccessibilitySettings, quality: QualityLevel): void;
    private spawnComet;
    private updateComet;
    private spawnDebris;
    private updateDebris;
    draw(ctx: CanvasRenderingContext2D, a11y: AccessibilitySettings): void;
    /**
     * Draw debris particles trailing the comet
     */
    private drawDebris;
    /**
     * Draw the curved dust tail trailing behind the comet
     * Uses a teardrop shape that wraps around the back of the nucleus
     */
    private drawDustTail;
    /**
     * Draw the straight ion tail (trails behind comet)
     */
    private drawIonTail;
    /**
     * Draw the coma (fuzzy glow around nucleus)
     */
    private drawComa;
    /**
     * Draw the bright nucleus
     */
    private drawNucleus;
    cleanup(): void;
    /**
     * Manually trigger a comet to appear
     */
    trigger(dim: Dimensions): void;
    /**
     * Check if a comet is currently visible
     */
    isActive(): boolean;
    /**
     * Get comet position for external tracking (e.g., UFO beam targeting)
     */
    getPosition(): {
        x: number;
        y: number;
    } | null;
}
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