def generate_beams(self):
n_beam = 30
for _ in range(n_beam):
r = randint(4, self.__row - 10)
c = randint(50, self.__col - 10)
t = Beam(r, c, self)
t.set_orientation(choice(["vert", "horiz", "diag"]))
t.render(self.__buf)
self.add_entity(t)
