Comment 6 for bug 732139

I was thinking a bit about this, so my opinion
Trading post would be the type of warehouse, where you would have arrows indicating:
- selling
- buying
- or no arrows
Only items for sale would be stored there

I think we would need a currency and clearing systems - yes, it sounds strange, but my idea is:
- it would be very complicated to set up barter ratio for all pairs of goods to be traded, single price for ware typ would be better.
- also the barters would not take place in the very same time, or there is possibility of small (im)ballance, f.e. you change one gold in price of 5, for two irons with price 2 each, and there will be ballance of 1 something left.
- Each player would be allowed to set a credit to other players - quite minimal, or bigger if he wish, just to smooth out those small differences in prices.

Trading post would have something like "portdock", where the trader of the other tribe drops the fetched ware. Or rather is should immediately be transported into warehouse.

Each trader would only carry ware from own trading post, so not taking another ware back, this would be the task for the other trader.

So production program for trader could look like
- find other player trading posts in some radius
- Find what they requires
- do we have such ware in the trading post? If yes:
- do our credit to that player allows the selling it to the other player? If yes:
- carry it and drop at other players trading post, swift/clearing system will increase the ballance accordingly