import { type BodyHandle, type BodyKind, type BodyShape, type JointDesc, type JointHandle, type PhysicsBackend, type PhysicsBackendConfig } from "./physicsBackend.js";
import { type PhysicsBounds, type PhysicsPrecision } from "./physicsWorld.js";
/** Construction options: the `PhysicsWorld` capacity and bounds plus the shared backend config. */
export interface PhysicsWorldBackendOptions extends PhysicsBackendConfig {
    capacity: number;
    bounds: PhysicsBounds;
    precision?: PhysicsPrecision;
    friction?: number;
    restitution?: number;
    /** Warn (once) when a body asks for rotation or a shape this backend approximates. Default `true`. */
    warn?: boolean;
}
interface SavedBody {
    handle: BodyHandle;
    shape: BodyShape;
    kind: BodyKind;
    layers: number;
    mask: number;
    userData: unknown;
    mass: number;
    position: [number, number, number];
    velocity: [number, number, number];
    sleeping: boolean;
    linearDamping?: number;
}
/** Serializable backend state: every live body and joint, with handles preserved. */
export interface PhysicsWorldBackendState {
    nextHandle: number;
    nextJoint: number;
    bodies: SavedBody[];
    joints: {
        handle: JointHandle;
        desc: JointDesc;
    }[];
}
/**
 * `PhysicsWorld` behind the {@link PhysicsBackend} interface: zero dependencies, translation-only. Capsules,
 * convex hulls, meshes, and heightfields collide as their bounding boxes; rotation, angular velocity, CCD, and
 * hinge limits are accepted and ignored (see {@link PhysicsBackend.capabilities}). Reach for `@jgengine/rapier`
 * when a game needs those for real; the seam is the same.
 *
 * @capability physics-world-backend the zero-dependency PhysicsWorld solver exposed through the PhysicsBackend seam
 */
export declare function createPhysicsWorldBackend(options: PhysicsWorldBackendOptions): PhysicsBackend;
export {};