Hello
if you are an architecture student, here are some lessons :
you first provided very few elements and no script. Not a great problem as your image was quite clear and your script was surely not very useful. But most of the time it is not interesting for people to recreate a script, also if it is simple (see there Help Us Help You)
But now you add new specifications that were not present at the beginning, if you do that in real life, you will have to pay for an useless tool as the maker of the tool that its tool answer the initial question.
Whatever, my tool was done with to work with real number and not sampled values. You’ll have to make it by yourself. It is not so hard.
Place a brick, go to the left (or right) look at the brightness => choose your gap accordingly.
Redo until you are on the other side.
Also if you do your tool you’ll have many more possibilities to tune it.