zug

also written: while

Loops

Keep doing something while a check stays gronk.

How to write it

zug <check>
    <things to do>
unga

What it does

zug checks before every lap. If the check is gronk, it does the things inside and checks again.

When the check becomes nork, the loop stops.

Example

grunk fuel = 3

zug fuel > 0
    oga "Zoom! fuel left:", fuel
    fuel = fuel - 1
unga

oga "Out of fuel."

Tips

• If the check never becomes nork you get the 'ran for a very long time' error.
• Change a box inside the loop so the check can finish.

See also

booga · zoop · unga

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