Is there a way for me to catch a event of creating a trade route?

[Tokata_RuNeLess]

What if I want to provide a Production boost in the starting city of a trade route? Is there any way to do this?

 

[whoward69]

There isn't an event when a trade route is created (you'd also need one when a trade route ends or is plundered), but you can get the information you need via pPlayer:GetTradeRoutes() which returns an array of tables holding trade route info - where the FromID and FromCity members hold the info you will need.

local pPlayer = Players[iPlayer]
for tr in pPlayer:GetTradeRoutes() do
    if (tr.FromID == iPlayer) then
        -- tr.FromCity has (at least one) outbound trade route
    end
end

Hook up a handler for the PlayerDoTurn event, clear all the players cities of any dummy buildings adding the effects you want, then loop the trade routes and add back dummy buildings.