export declare class Vector {
    x: number;
    y: number;
    constructor(x: number, y: number);
    cross(v: Vector): number;
    length(v: Vector): number;
}
export declare class Region {
    x: number;
    y: number;
    w: number;
    h: number;
    constructor(x: number, y: number, w: number, h: number);
    isIntersects(obj: {
        x: number;
        y: number;
        w: number;
        h: number;
    }): boolean;
    isPointInside(x: number, y: number): boolean;
    getPosition(): number[];
}