Is there a way to get the in-game year?

game.interface is only valid in the runFn section of the mod.lua file.

It is not available in the various modifier callback functions.

Zitat von doug

game.interface is only valid in the runFn section of the mod.lua file.

Is it? I thought game.interface is only available after loading.

In fact, game.interface is accessible in the script thread and game.gui in the gui thread. More Info: Game Script

What are you trying to do / where are you calling interface?

If it's a file with function data() it's loaded once while starting the game or when the ressource is requested.

The updateFn/ runFn somethingFns are stored and executed later, so in these functions you may have access to game.

I also had this problem in the updateFn. (Wo ist game.interface?)

It's not desgined that way to have access to the interface functions inside a construction. If you cannot solve your problem with the availibilty years, maybe with upgradeConstruction from gamescript.

I am also having trouble with this: I want to be able to run a loop that checks the current year and at several milestones I'd change stocks for several industries.

as far as I understand it in order to get the year, I need to write a script in the gui thread which sends data 'game.interface.getGameTime() . date.year' to a variable in 'save' using 'sendscriptevent' the whole process needs to be "handled" with handleEvent then I can save that value in "load" and the transference of information from gui thread to the engine thread will be complete. Meaning that I can finally use the value in my if statements.

Is this right? it feels like way too complicated just to get a simple value of 4 digits. also if someone could help me with some examples, as the explanations I've found haven't really told me much and I have bee running tests all day to no avail.

another thing: here it says that the updatefn function for industries has a "year" parameter described as "the current year". this could solve around 60% of what I wish to accomplish, but I can't seem to use it. How would you reference it from another lua file?
https://www.transportfever2.co…types#updatefn_parameters

Have a look at my Railway Warehouse mod. I use the construction year to determine which type of platform sign to add to the station.

Specifically, on line 64 of dsd_warehouse_rail_2.script, I assign the incoming construction parameters to the local variable "params"

Then, much later, on line 436, I test params.year against the value 1950 and build the signs accordingly.

Keep in mind that this value (params.year) does not change once the particular construction is built - what you're getting is not the current year, but rather the year the station/asset/etc was first built at that particular location.

Zitat von mauporte

I am also having trouble with this: I want to be able to run a loop that checks the current year and at several milestones I'd change stocks for several industries.

as far as I understand it in order to get the year, I need to write a script in the gui thread which sends data 'game.interface.getGameTime() . date.year' to a variable in 'save' using 'sendscriptevent' the whole process needs to be "handled" with handleEvent then I can save that value in "load" and the transference of information from gui thread to the engine thread will be complete. Meaning that I can finally use the value in my if statements.

Is this right? it feels like way too complicated just to get a simple value of 4 digits. also if someone could help me with some examples, as the explanations I've found haven't really told me much and I have bee running tests all day to no avail.

If you're running a game script, then you can call game.interface.getGameTime() directly in the engine thread. You don't need to call it in the gui thread to then use the horribly awkward serialization routines to get that value into the engine thread.

Thanks for the reply: i did take a look at it, but the date a particular building was constructed is not a value that i can use for what i wish to accomplish. I need the current in game year. the funny thing is that i left this part of my coding to the end because i figured that extracting the year was going to be the easiest part. the rest of my code works (just a simple set of if statements), I even made a table with static values and simulated my own year counter and works.

now: I've been using this simple code to run tests,

local function Test(fileName, data)
    local updateFn = data.updateFn
    if data.type == "INDUSTRY" then
        if data.description.name == _("Farm") then
            data.updateFn = function(params)
            local result = updateFn(params)
                result.rule.capacity = result.rule.capacity * 10
            return result
            end
        end
    end
return data
end

If I can make this one react to the year (though i eiminated that line as first i need to extract the value) I'm set, I can create most of my scripts using a macro and a spreadsheet.

I'm already using updateFn to change the capacity here, how could i use the parameter "year" described here?: https://www.transportfever2.co…types#updatefn_parameters

Where are you running this code? Is this a construction modifier function within mod.lua? If so, it will not work, as that code is only run once, when the game loads.

Zitat von doug

Where are you running this code? Is this a construction modifier function within mod.lua? If so, it will not work, as that code is only run once, when the game loads.

this is a construction modifier function within mod.lua. Yesterday my tests were with a runfn process and I was just checking if at start things would change as I wanted to. I would play with different parameters and start different games at different years and adjust things and save some pieces of code. Today I started using this simple script but now in the postrunfn. first i used a local variable within the mod.lua named Year and i'd set static numbers to that variable and again start at different times, now i can use loops because of the postrun but i didn't test them much. Next is when I discovered that getting the current year is not that simple (I just thought there was going to be some sort of global function, or at least one i coudl easily reference in a base game file) that eventually led me to this thread and I read what's been posted here. I created a new file in res/config/game_script but as i said the whole load, save thing is very confusing and I also feel that I'm not experienced enough with lua and I get confused when i see what appear to be syntax changes (at least to me).

Zitat von doug

If you're running a game script, then you can call game.interface.getGameTime() directly in the engine thread. You don't need to call it in the gui thread to then use the horribly awkward serialization routines to get that value into the engine thread.

and how exactly do i use this? because if I don't have to do the whole update, handler stuff, then
while this works in the in-game console:

currentYear = game.interface.getGameTime() .data.year
return currentYear

in the script it keeps telling me that I'm trying to index a nil value (game and interface), then it also tells me that .data.year are unexpected adn of course now I'm left with a a function that's not in the file (getGameTime) and so the program tells me about how it doesn't support global functions, And that's what confuses me: I read several times the documentation they provided and I feel that their syntax changes or something is not really that clear.

res/config/game_script is where you need to be if you want code that is executed on an ongoing basis. Absolutely everything in mod.lua is executed at load time only, and is never touched again.

As I mentioned above, you don't need to get hung up on the save/load serialization thing - just stick to the engine thread.

The problem that is going to arise is this:

You're going to need to define a custom set of production levels for the industry(ies) in question. That you can likely do in postRunFn, although I have not tried that myself.

You will then need to trigger the updateFn from within the game_script while specifying the revised production level as one of the parameters. game.interface.getGameTime() will work here, so you can determine when you need to do this.

I'm hoping someone else can chime in here, as you have reached the end of my knowledge on this. I'm sorry, I wish I could be of more help.

This is another mod I wrote that uses a game script (see line 36):

local bookAmount = 0
local previousYear = 0
local dsdRevenueRate = -0.05


local function dsdGetRate()
    local info = debug.getinfo(1,'S')
    local filePath = string.sub(info.source, 2)
    local res =  string.find(filePath, '/res/')
    local scriptPath = string.sub(filePath, res)
    local settingsFile = string.gsub(filePath, scriptPath, '/settings.lua')

    local dsdRevenueSettings = loadfile(settingsFile) 
    if dsdRevenueSettings ~= nil then
        local settings = dsdRevenueSettings()
        local rate = dsdRevenueSettings().rate / 100
        dsdRevenueSettings = nil
        return rate
    else
        return -.05 --failsafe fallback value; 5% tax
    end
end


local revenueScript = {
    save = function ()
    end,

    load = function (state, reset)
    end,

    guiUpdate = function ()
    end,

    update = function ()
        if previousYear ~= game.interface.getGameTime().date.year then
            dsdRevenueRate = dsdGetRate()
            previousYear = game.interface.getGameTime().date.year
        end
        if bookAmount ~= 0 then
            game.interface.book(bookAmount, false)
            bookAmount = 0
        end
    end,

    handleEvent = function (src, id, name, param)
        if name == 'JOURNAL_ENTRY' then 
            if param.type == 'VEHICLE_INCOME' then
                bookAmount = bookAmount + (param.amount * dsdRevenueRate)
            end
        end    
    end,

    guiHandleEvent = function (id, name, param)
    end,
}

return revenueScript

Zitat von doug

You're going to need to define a custom set of production levels for the industry(ies) in question. That you can likely do in postRunFn, although I have not tried that myself.

first of all I really appreciate your help.

for the values I was planning on linking to a table using the industry name as an id to search.

I migrated the whole test to the game_script file, and while I'm not getting any error codes anymore I don't think I'm putting the postrun process in the correct place as nothing happen

local function Test(fileName, data)
    while currentYear <1852 do
        local updateFn = data.updateFn
        if currentYear <= 1851 then
            if data.type == "INDUSTRY" then
                if data.description.name == _("Farm") then
                    data.updateFn = function(params)
                    local result = updateFn(params)
                        result.rule.capacity = result.rule.capacity * 10
                    return result
                    end
                end
            end
        end
    end
return data
end

local TestScript = {
update = function ()
    local currentYear = game.interface.getGameTime().date.year
end
}

postRunFn = function (settings)
            addModifier("loadConstruction", Test)
        end

return TestScript