/**
 * Type of the layer in a stage
 */
export declare enum GameStageLayer {
    /**
     * Used for displaying the game.
     */
    Normal = 0,
    /**
     * Used for displaying debug graphics, always renders on top of `Normal`,
     * but is subject to any scale changes that `Normal` layer is, depending
     * on the stage used.
     */
    DebugProportional = 1,
    /**
     * Used for displaying debug graphics, always renders on top of `DebugProportional`,
     * and always corresponds 1:1 to the actual physical space of the canvas, regardless
     * of what changes the stage would do.
     */
    DebugFullScreen = 2
}
export interface GameStage {
    update(timePassed: number): void;
    addChild(child: PIXI.DisplayObject, layer: GameStageLayer): void;
    removeChild(child: PIXI.DisplayObject): void;
    setWindowDimensions(width: number, height: number): void;
}