/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import { Vector3 } from 'three';
import type { Environment, EnvironmentManager } from '../environment/environment-manager.js';
export interface GroundInfo {
    isGrounded: boolean;
    distance: number;
    contactPoint: Vector3;
    normal: Vector3;
    environment?: Environment;
}
/**
 * Handles ground detection for locomotion
 * Reuses temporary objects for performance
 */
export declare class GroundDetector {
    private gravityDir;
    private upAxis;
    private environmentManager;
    private ray;
    private tempPosition;
    private tempGroundInfo;
    constructor(gravityDir: Vector3, upAxis: Vector3, environmentManager: EnvironmentManager);
    /**
     * Detect ground below player position across multiple environments
     * Returns reused GroundInfo object for performance
     */
    detectGround(environments: Environment[], playerPosition: Vector3, capsuleRadius: number, floatHeight: number, maxSlope: number): GroundInfo;
    /**
     * Add support for platform velocity inheritance when on kinematic platforms
     */
    applyPlatformVelocity(playerVelocity: Vector3, groundInfo: GroundInfo): void;
}
//# sourceMappingURL=ground-detector.d.ts.map