export declare class MouseDownState {
    private _leftButton;
    get leftButton(): boolean;
    private position;
    constructor();
    setStartButtons(source: {
        leftButton: boolean;
    }): void;
    setPosition(position: {
        x: number;
        y: number;
    }): void;
    getPosition(): {
        x: number;
        y: number;
    };
}