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Comments in green were written by me. Comments in blue were not written by me.
Very cool! Here's a combination of your "burst" and "protect" subroutines:

to f pu sety 195 setx 390 pd repeat 10 [fire fd 20 rt 36] pu home end
Aaron
on /blog/103
×4   ×3   ×4   ×4   ×4   

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