thanks to all who have replied, I'm very grateful.
(By the way, I'm using this call: move_to_new_town
But it need 4 things after it, like this:
move_to_new_town(Probably town number, a number, a number, a number);
I already figured out that the first number is the town number. I think that two of the other three are probably x and y coordinates. the last number I really don't know. if you ever used this call, could you explain me how to do it?