[PyGame] Breaking Raycasting loop

[XavierPlatinum]

I have this raycasting code I've been working on. It mostly functions except I can't figure out how to break out of all the loops when the ray hits something. As it is I can see blocks that are supposed to be invisible behind he first block that the ray hits. The points in the ray are in order from the player. If I can break out further when contact is made then further blocks will not be illuminated.

    def cast_rays(self):
        rays = []
        for b in self.game.level.block_dict.values():
            b.illuminated = False
        for ray in range(0, 360, 20):
            ray_points = []
            for depth in range(20, 100, 5):
                x = self.rect.centerx - math.sin(ray) * depth
                y = self.rect.centery + math.cos(ray) * depth
                ray_points.append((x,y))
            rays.append(ray_points)

            for block in self.game.level.block_dict.items():
                if abs(block[0][0] - self.rect.centerx) < 200:
                    if abs(block[0][1] - self.rect.centery) < 200:
                        for ray in rays:
                            for point in ray:
                                if block[1].rect.collidepoint(point):
                                    block[1].illuminated = True
                                    break
                                else:
                                    continue
                                break