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You can't loop, sorry. I would recommend U/D/L/R only change directions if the current value is nonzero. -- asiekierka, 11 Aug 09

Yeah, that would work. Orange 14:06, 11 August 2009 (UTC)

There are other ways too, one way is add a command to skip if non-zero. --Zzo38 17:50, 11 August 2009 (UTC)

That's pretty much what I did. --Alegend 12:18, 12 August 2009 (UTC)