/**
 * ErosionBrush — Interactive hydraulic/thermal erosion brushes
 *
 * Applies localized erosion simulation as a painting tool.
 *
 * @version 1.0.0
 */
export type ErosionType = 'hydraulic' | 'thermal' | 'wind';
export interface ErosionConfig {
    type: ErosionType;
    radius: number;
    strength: number;
    iterations: number;
    sedimentCapacity: number;
    thermalAngle: number;
}
export interface ErosionResult {
    cellsAffected: number;
    totalErosion: number;
    totalDeposition: number;
    iterations: number;
}
export declare class ErosionBrush {
    private heightmap;
    private config;
    private gridSize;
    constructor(gridSize?: number, config?: Partial<ErosionConfig>);
    /**
     * Set heightmap data
     */
    setHeight(x: number, z: number, h: number): void;
    getHeight(x: number, z: number): number;
    /**
     * Apply erosion at a center position
     */
    erode(cx: number, cz: number, overrides?: Partial<ErosionConfig>): ErosionResult;
    private getNeighborHeights;
    getConfig(): ErosionConfig;
    setConfig(cfg: Partial<ErosionConfig>): void;
    getGridSize(): number;
}
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