import { CanonicalMaterial } from "./canonical_material.js";
import { CanonicalMesh } from "./canonical_mesh.js";
import { ConwayGeometry, NativeTransform4x4 } from "../../dependencies/conway-geom/index.js";
import { ReadonlyUint32Array } from "./readonly_typed_array.js";
import { SceneNode, SceneNodeGeometry, SceneNodeTransform } from "./scene_node.js";
export interface SceneListener {
    onTransformAdded(node: SceneNodeTransform): void;
    onTransformUpdated(node: SceneNodeTransform): void;
    onTransformRemoved(node: SceneNodeTransform): void;
    onGeometryAdded(node: SceneNodeGeometry, transform?: SceneNodeTransform): void;
    onGeometryUpdated(node: SceneNodeGeometry, transform?: SceneNodeTransform): void;
    onGeometryRemoved(node: SceneNodeGeometry): void;
}
/**
 * Options for a scene listener
 */
export declare class SceneListenerOptions {
    readonly replayCurrentScene: boolean;
    readonly disableGeometryEvents: boolean;
    readonly disableTransformEvents: boolean;
    /**
     * Construct the options with default values as necessary
     *
     * @param replayCurrentScene
     * @param disableGeometryEvents
     * @param disableTransformEvents
     */
    constructor(replayCurrentScene?: boolean, disableGeometryEvents?: boolean, disableTransformEvents?: boolean);
    /** The default options */
    static defaults: SceneListenerOptions;
}
export interface Scene {
    getByNodeIndex(nodeIndex: number): SceneNode | undefined;
    readonly roots: ReadonlyUint32Array | ReadonlyArray<number>;
    readonly conwayGeometry: ConwayGeometry;
    isAllSpaces(): boolean;
    addSceneListener(listener: SceneListener, options?: SceneListenerOptions): void;
    removeSceneListener(listener: SceneListener): void;
}
export interface WalkableScene<BaseEntityType> extends Scene {
    getByNodeIndex(nodeIndex: number): SceneNode | undefined;
    readonly roots: ReadonlyUint32Array | ReadonlyArray<number>;
    readonly conwayGeometry: ConwayGeometry;
    isAllSpaces(): boolean;
    addSceneListener(listener: SceneListener, options?: SceneListenerOptions): void;
    removeSceneListener(listener: SceneListener): void;
    walk(includeSpaces?: boolean): IterableIterator<[
        readonly number[] | undefined,
        NativeTransform4x4 | undefined,
        CanonicalMesh,
        CanonicalMaterial | undefined,
        BaseEntityType | undefined
    ]>;
}
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