Thx @eradicator and @Silari for your help.

After some investigation and atemptions, I've created the solution for my request:


-- INIT

global = global or {}

script.on_init(function()
mod_init()
end)

function mod_init()
global.money_machines = {}
end

-- END INIT

function on_money_machine_placed(event)

local entity = event.created ...

If you're new to factorio modding I'd start with that. It's much easier as there's a pre-made "market" structure that can handle trading. That way you get a better feeling of how modding works and implementing the fiat thing should be easier and cleaner if you do it with some experience.


Yes, I ...

Hello guys!

I'm trying to implement my idea in special economic mode and I met an issue when I decided to create unique items based on player name or index.

Idea: I want to create fiat money for MP. This is just an item (a coin) which can be created by one player only. And every player in MP can ...