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[Done] Detect other mods installed

https://forums.factorio.com/viewtopic.php?t=52040

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[Done] Detect other mods installed

Posted: Mon Aug 21, 2017 4:37 am
by TheSAguy
What is the best/correct way to detect if another mod is also being used?
For both Control.lua and Data.lua please.

Thanks.

Re: Detect other mods installed

Posted: Mon Aug 21, 2017 4:44 am
by darkfrei
I think it's possible only with reading some items/ entities, if it exists then installed.

Re: Detect other mods installed

Posted: Mon Aug 21, 2017 5:57 am
by Exasperation
It's actually pretty easy. From http://lua-api.factorio.com/latest/Data-Lifecycle.html:
The settings stage wrote:a global table mods exists that contains a mapping of mod name to mod version for all enabled mods
The data stage wrote:The global table mods still exists
So, in the data stage,

Code: Select all

if mods[modname] then
will tell you if a mod named modname exists.

In the control stage, you have access to http://lua-api.factorio.com/latest/LuaG ... ctive_mods instead, so

Code: Select all

if game.active_mods[modname] then
will do it.

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 4:02 pm
by TheSAguy
Exasperation wrote:It's actually pretty easy. From http://lua-api.factorio.com/latest/Data-Lifecycle.html:
The settings stage wrote:a global table mods exists that contains a mapping of mod name to mod version for all enabled mods
The data stage wrote:The global table mods still exists
So, in the data stage,

Code: Select all

if mods[modname] then
will tell you if a mod named modname exists.

In the control stage, you have access to http://lua-api.factorio.com/latest/LuaG ... ctive_mods instead, so

Code: Select all

if game.active_mods[modname] then
will do it.
The control stage does not seem to work for me.
I tried the following two:

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	if game.active_mods[EndgameCombat] then
		game.surfaces[1].print("You have Endgame Combat Installed, not compatable with Natural Evolution Buildings")
	end
and

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	for name, version in pairs(game.active_mods) do
		game.surfaces[1].print(name .. " version " .. version)
	end
I tried them in "script.on_init", "script.on_configuration_changed" and "script.on_load". Crashes in On_load and does not seem the have any effect in the other two.
Anyone see what I'm doing wrong here?
Control attached.
Thanks.

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 4:06 pm
by darkfrei
TheSAguy wrote:

Code: Select all

	if game.active_mods[EndgameCombat] then
		game.surfaces[1].print("You have Endgame Combat Installed, not compatable with Natural Evolution Buildings")
	end
EndgameCombat is link, "EndgameCombat" is word

Code: Select all

	if game.active_mods["EndgameCombat"] then
		game.surfaces[1].print("You have Endgame Combat Installed, not compatable with Natural Evolution Buildings")
	end

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:17 pm
by Bilka
And it won't print anyways in on_init if you are creating a new world.

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:28 pm
by TheSAguy
I'm not sure what's going on here, I'm can't seem to even display a message without any condition.

The below by itself is not displaying me anything...

Code: Select all

	game.surfaces[1].print("You have Endgame Combat Installed, not compatible with Natural Evolution Buildings")

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:32 pm
by Bilka
TheSAguy wrote:I'm not sure what's going on here, I'm can't seem to even display a message without any condition.

The below by itself is not displaying me anything...

Code: Select all

	game.surfaces[1].print("You have Endgame Combat Installed, not compatible with Natural Evolution Buildings")
Are you creating a new world with the mod? Then print won't work in on_init because it happens before players are created. Source: Nexela

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:38 pm
by TheSAguy
I placed my code in both On-Init and on-Change, but I'm not getting any message displayed.

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:49 pm
by darkfrei
TheSAguy wrote:I'm not sure what's going on here, I'm can't seem to even display a message without any condition.

The below by itself is not displaying me anything...

Code: Select all

	game.surfaces[1].print("You have Endgame Combat Installed, not compatible with Natural Evolution Buildings")
Players, not surfaces:

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/c game.players[1].print("You have Endgame Combat Installed, not compatible with Natural Evolution Buildings")

Re: Detect other mods installed

Posted: Tue Aug 22, 2017 5:58 pm
by TheSAguy
UGH, I knew it was user error, I just could not find it!
Thanks.

Re: [Resolved] Detect other mods installed

Posted: Sat Sep 16, 2017 4:42 am
by TheRedBull
I'd been trying to figure this out for the last couple days... thanks for this thread!

Re: Detect other mods installed

Posted: Wed Jan 17, 2018 11:35 pm
by TheSAguy
How can I determine if a mod is installed during control.lua, but not during "script.on_configuration_changed" or "script.on_init".

There I can use:

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game.active_mods["mod name"] then
I need to determined if Alien Biomes is running, and if running it should use a different table. I cant use "game" though during normal control as in below

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if game.active_mods["alien-biomes"] then
	terrains = require("libs/trees-and-terrains_alien_boimes")
else
	terrains = require("libs/trees-and-terrains")
end
Thanks.

Re: Detect other mods installed

Posted: Wed Jan 17, 2018 11:40 pm
by orzelek
I've been using the active-mods method in control.lua without problems.
I don't think it's limited to those events - I have a use from remote interface and it seems to work.

You are trying to make conditional require statements in that if - maybe thats whats not working properly?

Re: Detect other mods installed

Posted: Mon Apr 20, 2020 12:20 am
by lukavminaev
Exasperation wrote: Mon Aug 21, 2017 5:57 am
In the control stage, you have access to http://lua-api.factorio.com/latest/LuaG ... ctive_mods instead, so

Code: Select all

if game.active_mods[modname] then
will do it.
Its late but the correct code is

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if type(game.active_mods["modname"]) then

Re: Detect other mods installed

Posted: Mon Apr 20, 2020 12:28 am
by Rseding91
lukavminaev wrote: Mon Apr 20, 2020 12:20 am Its late but the correct code is

Code: Select all

if type(game.active_mods["modname"]) then
That's just extra work to get the same results. You don't need the type check.
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