import { PolyScene } from '../../engine/scene/PolyScene';
import { CoreGraphNode } from './CoreGraphNode';
export declare type CoreGraphNodeId = number;
export declare class CoreGraph {
    private _next_id;
    private _scene;
    private _successors;
    private _predecessors;
    private _nodes_by_id;
    private _nodesCount;
    private _debugging;
    private _addedNodesDuringDebugging;
    startDebugging(): void;
    stopDebugging(): void;
    printDebug(): void;
    set_scene(scene: PolyScene): void;
    scene(): PolyScene | undefined;
    next_id(): CoreGraphNodeId;
    nodes_from_ids(ids: number[]): CoreGraphNode[];
    node_from_id(id: number): CoreGraphNode | undefined;
    has_node(node: CoreGraphNode): boolean;
    add_node(node: CoreGraphNode): void;
    remove_node(node: CoreGraphNode): void;
    nodesCount(): number;
    connect(src: CoreGraphNode, dest: CoreGraphNode, check_if_graph_may_have_cycle?: boolean): boolean;
    disconnect(src: CoreGraphNode, dest: CoreGraphNode): void;
    disconnect_predecessors(node: CoreGraphNode): void;
    disconnect_successors(node: CoreGraphNode): void;
    predecessor_ids(id: CoreGraphNodeId): CoreGraphNodeId[];
    predecessors(node: CoreGraphNode): CoreGraphNode[];
    successor_ids(id: CoreGraphNodeId): CoreGraphNodeId[];
    successors(node: CoreGraphNode): CoreGraphNode[];
    all_predecessor_ids(node: CoreGraphNode): CoreGraphNodeId[];
    all_successor_ids(node: CoreGraphNode): CoreGraphNodeId[];
    all_predecessors(node: CoreGraphNode): CoreGraphNode[];
    all_successors(node: CoreGraphNode): CoreGraphNode[];
    private _create_connection;
    private _remove_connection;
    private all_next_ids;
    private _has_predecessor;
}