[Solved]Hide a recipe/item from inside technology

[dtoxic]

So i wanted to change the steam engine from unlocking in one technology and unlock in another witch i managed to do like this

Code: Select all

table.insert(data.raw["technology"]["steam-power"].effects,{type = "unlock-recipe",recipe = "steam-engine"})

But now i have two recipes inside the "steam-power" and from another mod technology "electric-machinery" i would like to hide the recipe for the steam engine from "electric-machinery" technology

is there a Wizard who could point me on an adventure of coding land,and what is to be done so i can complete this quest?

[FuryoftheStars]

It's gonna be hours before I can open up my own mod code to refresh my memory on this, but if you take a look at the code in my Classic Factorio Basic Oil Processing mod, I move a bunch of recipes around in the techs, so there are examples of inserting and removing in there. The code shouldn't be overly complex, either, as it's just moving recipes and changing a few recipes based on settings. Nothing truly new or complex.

[dtoxic]

Will check that out now,thank you kindly

[dtoxic]

Nope,cant make a sense of the code,all i see changing the prerequisite for technologies and adding/removing? ingredients...but thank you anyway,will wait for some other explanation

[Pi-C]

So i wanted to change the steam engine from unlocking in one technology and unlock in another witch i managed to do like this

Code: Select all

table.insert(data.raw["technology"]["steam-power"].effects,{type = "unlock-recipe",recipe = "steam-engine"})

But now i have two recipes inside the "steam-power" and from another mod technology "electric-machinery" i would like to hide the recipe for the steam engine from "electric-machinery" technology

Code: Select all

local tech = data.raw.technology["electric-machinery"]
if tech and tech.effects then
	local new_effects = {}
	for e, effect in pairs(tech.effects) do
		if not (effect.type == "unlock-recipe" and effect.recipe == "steam-engine") then
			table.insert(new_effects, effect)
		end
	end
	tech.effects = next(new_effects) and table.deepcopy(new_effects) or nil
end

Technology effects are optional, so this will only run if the technology exists and has effects. Even if technology.effects does exist, you don't know what other mods may have changed before yours, so there is a chance that tech.effects contains the same unlock recipe more than once. Therefore, we go over all effects and copy every effect that is not an unlock-recipe for the steam-engine to the table new_effects. When that is done, we use next(new_effects) to check whether the table contains any elements. If it does, we overwrite tech.effects with new_effects; if it's empty, we remove tech.effects by setting it to nil.

Does that help, or did I miss something?

[dtoxic]

Just one question will this now also remove the "steam-engine" from technology "steam-power" witch i added with my code?

[Pi-C]

No. As tech has been defined as

Code: Select all

local tech = data.raw.technology["electric-machinery"]

the "steam-engine" recipe will be removed only from the effects of "electric-machinery".

[dtoxic]

ahh great...every day one learns more,thank you

[Pi-C]

You're welcome, glad I could help!

[dtoxic]

btw,i put it data-final-fixes to make it work because in data-updates it would not stick...

[Pi-C]

Looks like some other mod changed it after your mod was done in data-updates.lua. Hover over the "electric-machinery" tech in the tech tree, and you'll see the mods that have modified the tech. If you'd find the mod that adds the unlock, you could add a dependency on it to force it to load before your mod. This way, you could keep your changes in data-updates.lua.

[dtoxic]

Thx will check it out

[FuryoftheStars]

Nope,cant make a sense of the code,all i see changing the prerequisite for technologies and adding/removing? ingredients...but thank you anyway,will wait for some other explanation

Ah, sorry about that. I could've sworn I did some recipe moving in there too, but maybe not. It has been a while since I've needed to look at that mod's code.

Glad Pi-C was able to help you out and you got your problem solved, though.

[dtoxic]

No problem,also my coding skills are not that good but thanks for trying