Detect Tetris (4 rows at once)

I didn't know that it was called a "Tetris" move! Thanks for putting this here.

Wikipedia says that there isn't anything special about a "Tetris" move other than it giving more points. If this is true, then I think we should rename this note to something like "detect multiple rows at once" to make it more general, because I think it'll be easy to implement x amount of rows removed if we have the code for 4 rows removed and 4 removed doesn't do much different than say 3 removed. And, we can give a corresponding amount of points for x amount of rows removed.

MinecraftU / 2021-computer-adventures

Detect Tetris (4 rows at once) #44