Lab 5.3 why do it the hard way?

[jdonwells]

"(Hint: in order for this to work right, you should reuse old IDs once the clones are deleted. So, for example, if the most recently created clone was number 6, and you hit d, clone number 6 should be deleted. Then, if a new clone is created, it should be a new clone number 6.)"

If you are going to give clones an id don't reuse the id. Just keep the ids that are being used in a list. We just told them how important lists are.

Then when you get to the bonus activity "All clones with higher numbers should be renumbered so that ID numbers remain contiguous." you don't need to renumber them.

You could also use the my clones block to get a list of all clones and not give them ids. I learned the hard way that broadcasting a message and having all sprites respond based on an id is incredibly slow. So slow that it makes Snap! unusable. Perhaps we shouldn't show them how to make a program broken by design. It also eliminates the potential race condition.