export type EntityTransformInput = {
    position?: unknown;
    rotation?: unknown;
    scale?: unknown;
};
export type NewEntityData = {
    name: string;
    script: string;
    properties: Array<{
        name: string;
        type: string;
        value: unknown;
    }>;
    transform: {
        position: string;
        rotation: string;
        scale: string;
    };
};
/**
 * In-memory scene state for WebSocket mode. Holds a PhibelleScene and provides
 * update methods that mirror the push logic without touching the network.
 */
export declare class SceneState {
    private scene;
    constructor(initialJson: string);
    getJson(): string;
    /** Current max entity id used in entityStore (for computing next engineId). */
    getCurrId(): number;
    /** Replace in-memory scene with the given JSON (e.g. from FE over WebSocket). */
    replaceScene(json: string): void;
    updateSceneScript(script: string): void;
    updateSceneProperties(properties: unknown[]): void;
    updateEntityScript(entityId: string, script: string): void;
    updateEntityProperties(entityId: string, properties: Array<{
        name: string;
        type: string;
        value: unknown;
    }>): void;
    updateEntityTransforms(entityId: string, data: EntityTransformInput): void;
    addEntity(engineId: number, data: NewEntityData): void;
}