== Overview == An entity with the `BarterMarket` class has a special market interface to buy and sell resources in exchange for other resources. The Market is used to buy and sell quantities of resources in exchange for other resource types, through the barter user interface. Transfer of resources is instantaneous once triggered; no trade units are required to deliver the traded resources. == Notes == ''For users'': see the more detailed description [wiki:Manual_OtherFeatures#Barter in the manual]. ''For programmers'': * `BarterMarket` class allows building to have the barter interface; * [http://trac.wildfiregames.com/browser/ps/trunk/binaries/data/mods/public/simulation/components/Barter.js the global Barter component] responsible for all barter operations and prices; * related ticket: #23 (!Buy/Sell Resources).