import RAPIER from '@dimforge/rapier3d-compat';
import { Component } from '@certe/atmos-core';
import type { PhysicsWorld } from './physics-world.js';
export type RigidBodyType = 'dynamic' | 'fixed' | 'kinematic';
export interface RigidBodyOptions {
    type?: RigidBodyType;
    mass?: number;
    linearDamping?: number;
    angularDamping?: number;
    gravityScale?: number;
}
export declare class RigidBody extends Component {
    body: RAPIER.RigidBody | null;
    bodyType: RigidBodyType;
    private _world;
    private _linearDamping;
    private _angularDamping;
    private _gravityScale;
    /** When true, Transform is extrapolated between physics steps to reduce jitter. */
    interpolate: boolean;
    get linearDamping(): number;
    set linearDamping(v: number);
    get angularDamping(): number;
    set angularDamping(v: number);
    get gravityScale(): number;
    set gravityScale(v: number);
    init(world: PhysicsWorld, options?: RigidBodyOptions): void;
    /** Auto-initialize if not already initialized (called by PhysicsSystem). */
    autoInit(world: PhysicsWorld): void;
    /** Copy Rapier body transform → engine Transform (for dynamic bodies) */
    syncToTransform(): void;
    /** Extrapolate Transform using Rapier body position + velocity * dt. */
    extrapolateTransform(dt: number): void;
    /** Copy engine Transform → Rapier body (for kinematic bodies) */
    syncFromTransform(): void;
    /** Teleport Rapier body to match engine Transform (for external edits on dynamic bodies) */
    teleportToTransform(): void;
    addForce(x: number, y: number, z: number): void;
    addImpulse(x: number, y: number, z: number): void;
    onDestroy(): void;
    /** Walk descendants and null out collider handles that reference this body. */
    private _invalidateChildColliders;
}
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