public boolean xBorderReached( float posX, float posY ){

        return xDirection == X_RIGHT_TO_LEFT ?
                yDirection == Y_BOTTOM_TO_TOP ?
                        posY >= endY ? posX <= endX : posX <= X_MIN
                        : posY <= endY ? posX <= endX : posX <= X_MIN
                :
                yDirection == Y_BOTTOM_TO_TOP ?
                        posY >= endY ? posX <= endX : posX <= X_MAX
                        : posY <= endY ? posX <= endX : posX <= X_MAX;

    }