Instruction
Great! We also wrote a laser_shoot_right() function which is very similar to the function you wrote in a previous exercise. Let's move on to the vertical shoot!
Exercise
Write a laser_shoot_down(board, robot, lives_left) function that is similar to the laser_shoot_right() or laser_shoot_left() functions, but presents a laser beam shooting down.
Example 1: no hit
- - - - - Av- - - * - - - * B<-
Example 2: robot B hit
- - Av- - - * - - - B<- - - * -



