/**
 * Shared types + lookup helpers for the hex-mesh modules.
 *
 * Kept as a small leaf module so every hex-mesh builder can depend on it
 * without pulling the full `useHexasphereMesh` stack.
 */
import * as THREE from 'three';
import type { Tile } from '../../geometry/hexasphere.types';
import type { TerrainLevel } from '../types/terrain.types';
/** Subset of tile geometry metadata exposed to external overlay renderers. */
export interface TileGeometryInfo {
    tile: Tile;
    level: TerrainLevel;
}
/** Listener notified when the hovered tile id changes. Null = no tile. */
export type HoverListener = (tileId: number | null) => void;
/** Shadow cast by an orbiting child onto this planet's surface. */
export type ShadowUniforms = {
    pos: {
        value: THREE.Vector3;
    };
    radius: {
        value: number;
    };
};
/** Parent body occluding sunlight from reaching this surface. */
export type OccluderUniforms = {
    pos: {
        value: THREE.Vector3;
    };
    radius: {
        value: number;
    };
};
/** Returns the TerrainLevel matching the given elevation in a sorted palette. */
export declare function getTileLevel(elevation: number, levels: TerrainLevel[]): TerrainLevel;
/** Sugar: `new THREE.Vector3(x, y, z)` — scratch builder for per-tile geometry. */
export declare function v(x: number, y: number, z: number): THREE.Vector3;
/** Pushes the `(x, y, z)` components of a vector into a flat number buffer. */
export declare function pushVec(arr: number[], vec: THREE.Vector3): void;
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