/**
 * CoalBedSystem - Glowing heat source at bottom (A+ Enhancement)
 *
 * Creates a visible bed of glowing coals that:
 * - Pulse with offset phases (not synchronized)
 * - Randomly flare as hotspots
 * - Provide grounding for the scene (particles come FROM here)
 * - Sync with scene breathing for cohesive feel
 *
 * Plain TypeScript module - no Svelte runes needed for standalone package.
 */
import type { Dimensions } from "../../../core/domain/types.js";
import type { QualityLevel } from "../../../core/domain/types.js";
/**
 * Initialize coal bed
 */
export declare function initialize(dimensions: Dimensions, quality: QualityLevel): void;
/**
 * Update coal bed - pulse and flare
 */
export declare function update(_dimensions: Dimensions, frameMultiplier: number): void;
/**
 * Draw coal bed
 */
export declare function draw(ctx: CanvasRenderingContext2D, _dimensions: Dimensions): void;
/**
 * Set motion multiplier for accessibility
 */
export declare function setMotionMultiplier(multiplier: number): void;
/**
 * Set breathing multiplier (syncs with scene breathing)
 */
export declare function setBreathingMultiplier(multiplier: number): void;
/**
 * Get a random coal position for spark spawning
 */
export declare function getRandomCoalPosition(): {
    x: number;
    y: number;
} | null;
/**
 * Get coal count for stats
 */
export declare function getCount(): number;
/**
 * Cleanup
 */
export declare function cleanup(): void;
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