import { Box2, Vector2 } from 'three';
import { WorldLocals } from '../config/WorldEnv.js';
import { NoiseSampler } from './NoiseSampler.js';
import { DiscreteDistributionMap } from './DiscreteDistributionMap.js';
import { Biome } from './Biome.js';
import { Heightmap } from './Heightmap.js';
export type SpawnSlot = {
    pos: Vector2;
    randomIndex: number;
};
export type SpawnRules = {
    overlapTolerance: number;
    overlapProbability: number;
};
/**
 * Support for multiple items' sizes
 */
export declare class SpawnDistributionMap {
    discreteDistributionMap: DiscreteDistributionMap;
    spawnDistributionLaw: NoiseSampler;
    spawnProbabilityThreshold: number;
    biomes: Biome;
    heightmap: Heightmap;
    constructor(worldLocalEnv: WorldLocals, heightmap: Heightmap, biomes: Biome);
    evalSpawnability(pos: Vector2): number | null;
    /**
     *
     * @param initialInput
     * @param maxSearchRadius to limit or to query only inner elements, use radius 0
     * @returns
     */
    queryMapArea(initialInput: Vector2[] | Box2, spawnInsideOnly?: boolean): Record<number, SpawnSlot[]>;
}