/**
 * IUFOStarScanner - Handles star discovery and memory for UFO scanning behavior
 *
 * Manages finding nearby stars for the UFO to scan, tracking which stars
 * have been scanned recently to avoid repetition, and locating stars
 * near specific positions.
 */
import type { UFO, StarInfo } from "../domain/ufo-types.js";
import type { Dimensions } from "../../../../core/domain/types.js";
export interface IUFOStarScanner {
    /**
     * Find a bright star near the UFO that hasn't been recently scanned
     * Returns null if no suitable star is found
     */
    findNearbyBrightStar(ufo: UFO, dimensions: Dimensions, starProvider: () => StarInfo[]): StarInfo | null;
    /**
     * Find the star closest to a given position
     * Used for tracking stars that may have drifted due to parallax
     */
    findStarNearPosition(targetX: number, targetY: number, starProvider: () => StarInfo[]): StarInfo | null;
    /**
     * Remember that a star at this position was scanned
     * Prevents rescanning the same star repeatedly
     */
    rememberScannedStar(ufo: UFO, x: number, y: number): void;
    /**
     * Generate a grid key for a star position (for memory lookup)
     */
    getStarKey(x: number, y: number): string;
}
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