/**
 * The Ammo.js (Bullet) physics backend. Expects the `Ammo` global to be available when
 * constructed - the RigidBodyComponentSystem only creates it after the Ammo WasmModule has
 * loaded.
 *
 * @ignore
 */
export class AmmoPhysicsWorld extends PhysicsWorld {
    /**
     * Create a new AmmoPhysicsWorld instance.
     *
     * @param {object} [options] - The world options. See {@link PhysicsWorld}.
     */
    constructor(options?: object);
    /** @private */
    private _gravityFloat32;
    /**
     * Built triangle data cached per geometry source id, shared by all mesh shapes created
     * from the same geometry. Entries live until the world is destroyed.
     *
     * @type {Map<number, object>}
     * @ignore
     */
    _triMeshCache: Map<number, object>;
    /**
     * The shared static body world-pinned joints attach to, lazily created.
     *
     * @type {object|null}
     * @ignore
     */
    _fixedBody: object | null;
    /**
     * The fixed timestep of the last simulation step, used by joint motor conversions.
     *
     * @ignore
     */
    _fixedTimeStep: number;
    collisionConfiguration: any;
    dispatcher: any;
    overlappingPairCache: any;
    solver: any;
    _useTickCallback: boolean;
    _contactPair: AmmoContactPair;
    _btVec1: any;
    _btVec2: any;
    _btQuat: any;
    _btTransform: any;
    _btRayStart: any;
    _btRayEnd: any;
    /**
     * @param {PhysicsBodyDesc} desc - The body descriptor.
     * @returns {AmmoPhysicsBody} The new body.
     */
    createBody(desc: PhysicsBodyDesc): AmmoPhysicsBody;
    destroyBody(body: any): void;
    addBody(body: any, group: any, mask: any): void;
    removeBody(body: any): void;
    destroyShape(shape: any): void;
    addCompoundChild(compound: any, child: any, position: any, rotation: any): void;
    updateCompoundChild(compound: any, child: any, position: any, rotation: any): void;
    removeCompoundChild(compound: any, child: any): void;
    getCompoundChildCount(compound: any): any;
    /**
     * @param {PhysicsJointDesc} desc - The joint descriptor.
     * @returns {AmmoPhysicsJoint} The new joint.
     */
    createJoint(desc: PhysicsJointDesc): AmmoPhysicsJoint;
    destroyJoint(joint: any): void;
    step(dt: any, maxSubSteps: any, fixedTimeStep: any): void;
    /**
     * Walks the dispatcher's contact manifolds and reports each contacting pair with entities
     * on both bodies to the contact listener.
     *
     * @private
     */
    private _walkContacts;
    raycastFirst(start: any, end: any, options?: {}): RaycastResult;
    raycastAll(start: any, end: any, options?: {}): RaycastResult[];
}
import { PhysicsWorld } from '../physics-world.js';
/**
 * @import { ContactPoint } from '../../components/rigid-body/contact-point.js'
 * @import { PhysicsBodyDesc, PhysicsJointDesc, PhysicsShapeDesc } from '../physics-world.js'
 */
/**
 * The reused contact pair reported to the contact listener. Reads contact point data straight
 * from the current native manifold - nothing is allocated.
 *
 * @ignore
 */
declare class AmmoContactPair {
    entityA: any;
    entityB: any;
    triggerA: boolean;
    triggerB: boolean;
    contactCount: number;
    /**
     * The native btPersistentManifold currently being reported.
     *
     * @private
     */
    private _manifold;
    /**
     * @param {number} index - The contact point index.
     * @param {ContactPoint} out - The contact point to fill, from body A's perspective.
     */
    readContact(index: number, out: ContactPoint): void;
}
import type { PhysicsBodyDesc } from '../physics-world.js';
import { AmmoPhysicsBody } from './ammo-physics-body.js';
import type { PhysicsJointDesc } from '../physics-world.js';
import type { AmmoPhysicsJoint } from './ammo-physics-joint.js';
import { RaycastResult } from '../../components/rigid-body/raycast-result.js';
import type { ContactPoint } from '../../components/rigid-body/contact-point.js';
export {};