How to change / tweak existing recipes

[DenBaron]

Hi all

Quite new at programming for Zomboid but I have to start somewhere so sorry for the stupid questions. My firts hopefully small goal is that I want to be able to write a small mod that changes recipes already in the game. That beeing either adding items keept after crafting or new items gotten after dismantling something. I've figured out how to alter the standard game files to achieve my goals but for the sake of learning i would love to gain the knowledge how to make this into a mod so it can be shared with everbody. 

So my question is how do i write a script that tweaks / changes already excisting recipes in the game ??

[Svarog]

Build 36 Update notes
 

• [MODDERS] You can now override recipes, just make a new recipe with the same name than the one you want to override and add a Override:true

 

 

To be honest I haven't tried it myself but it would probably look more/less like this in a recipe script (use 15 nails instead of 5)

 

recipe Build Spiked Baseball Bat
    {
       BaseballBat,
       Nails=15,
       keep Hammer/HammerStone,

 

       Result:BaseballBatNails,
       Sound:PZ_Hammer,
       Time:150.0,
       Category:Carpentry,
       OnCreate:SpikedBat_OnCreate,
       Override:true,
    }

Bolded text is what's different from original recipe in Recipes.txt

Edited July 24, 2017 by Svarog

[DenBaron]

Thanks! i'll have to look through update notes more thoroughly. I've probobly missed more very important modder updates like this.

 

[Snakeman]

On 29/7/2017 at 2:37 PM, DenBaron said:

Thanks! i'll have to look through update notes more thoroughly. I've probobly missed more very important modder updates like this.

 

This feature only worked if you play the game on english language!!

[BudeRoy]

There is something very weird going on with this Override thing. I was really happy to find out there's way to override recipes but seems like some of them are hard coded or something!?

 

I was succesfully able to override 9mm and shotgun shells to be my mod versions, but 308 and 223 recipes are duplicated no matter what i do, i've changed names of bullets and bulletboxes and done now all tricks and still circling around the same problem. This is about to drive me crazy, added code from my script file (made fully own for it) and screenshots to show there's still double recipes even there's override.

 

module Base
{
	imports 
	{
	PZExpanded
	}

	
	recipe Open Box of .308 Ammo
    {
	AmmoBox308Win,

	Result:Win308Bullets=32,
	Sound:PZ_PutInBag,
	Time:5.0,
	Override:true,
    }
	
	recipe Place .308 Ammo in Box
    {
	Win308Bullets=32,

	Result:AmmoBox308Win,
	Sound:PZ_PutInBag,
	Time:20.0,
	Override:true,
    }
	
	recipe Open Box of .223 Ammo
    {
	AmmoBox223Rem,

	Result:223RemBullets=40,
	Sound:PZ_PutInBag,
	Time:5.0,
	Override:true,
    }
	
	recipe Place .223 Ammo in Box
    {
	223RemBullets=40,

	Result:AmmoBox223Rem,
	Sound:PZ_PutInBag,
	Time:20.0,
	Override:true,
    }
	
	recipe Open Box of 9mm Bullets
    {
	AmmoBox9x19mm,

	Result:9x19mmBullets=60,
	Sound:PZ_PutInBag,
	Time:5.0,
	Override:true,
    }
	
	recipe Place 9mm Bullets in Box
    {
	9x19mmBullets=60,

	Result:AmmoBox9x19mm,
	Sound:PZ_PutInBag,
	Time:20.0,
	Override:true,
    }

    recipe Open Box of Shotgun Shells
    {
	AmmoBox12GBuckshot,

	Result:12GBuckshots=28,
	Sound:PZ_PutInBag,
	Time:5.0,
	Override:true,
    }
	
    recipe Place Shotgun Shells in Box
    {
	12GBuckshots=28,

	Result:AmmoBox12GBuckshot,
	Sound:PZ_PutInBag,
	Time:20.0,
	Override:true,
    }
	
	recipe Saw Off Shotgun
	{
	DoubleBarrelShotgun,
	keep Saw,

	Result:SawnOffDoubleBarrel,
	Sound:PZ_Saw,
	Time:200.0,
	Override:true,
	}

    recipe Gather Gunpowder
    {
	9x19mmBullets/12GBuckshots/223RemBullets/Win308Bullets/338Bullets/556Bullets/762Bullets,

	Result:GunPowder,
	Time:30.0,
	Override:true,
    }
	
}

 

 

 

 

Edited September 20, 2017 by BudeRoy

[BudeRoy]

I've noticed that Override:true, can be used also to override base items. There's also Obsolete:true, to remove whole recipe.

But the problem i'am issued with is 99% surely caused by the name of recipe. I can override all other recipes without any issues except these two which are inclued with . [dot] in it's name. That . must somehow break the override process.

[Hydromancerx]

I am trying to override the Wash Clothes recipie but it is not working. :/ What did i do wrong?

 

recipe Wash Clothing
    {
       	keep Vest/Shirt/Trousers/Skirt/Blouse/Underwear1/Underwear2/HCScavangeshroud/HCRaincoat/HCRainponcho/HCMexicanponcho/HCDownjacket/HCButtondownshirt/HCPoloshirt/HCTshirt/HCTiedyeshirt/HCHawaiianshirt/HCLifevest/HCLinenshirt/HCLinenpants/HCSilkshirt/HCSilkpants/HCWoolshirt/HCWoolpants,
       	Soap2/HCSoap/HCCleanerall/HCCleanerfabric/HCFabricsoftener/HCHandsoap/HCShampoo,
       	Water=3,
       	Result:Vest,
       	OnTest:WashClothing_TestIsValid,
       	Time:1000.0,
       	OnCreate:WashClothing_OnCreate,
       	RemoveResultItem:true,
    	Category:Weaving,
       	Override:true,
    }

 

[Nagyx]

Sorry for the necro, but I'm having such a pain to override recipes that has more than one with the same recipe name/ID
I'm trying to start modding, and the first big wall I'm having is to override a recipe like Make Hot Cuppa, because the recipe that uses coffee, has the same name as the recipe that uses tea. 
So when I try to do this, only one of the recipes is overriden, no matter what I do the other one stills the same.
IMO the recipes should be the same way as the items, with individual ID's.
 

[Kielo]

On 9/20/2021 at 5:41 PM, Nagyx said:

Sorry for the necro, but I'm having such a pain to override recipes that has more than one with the same recipe name/ID
I'm trying to start modding, and the first big wall I'm having is to override a recipe like Make Hot Cuppa, because the recipe that uses coffee, has the same name as the recipe that uses tea. 
So when I try to do this, only one of the recipes is overriden, no matter what I do the other one stills the same.
IMO the recipes should be the same way as the items, with individual ID's.
 

Did you solve this problem somehow? I have it now and I can't find any information about it. I tried to ask some help in discord, but everyone is silent there too.

[Tykvesh]

Here's an example how you can modify specifically one of "Open Umbrella" recipes.

There's probably a way to directly modify recipes with the recipe:Load function, but I haven't figured out the arguments.

local recipes = getScriptManager():getAllRecipes()
for i = 1, recipes:size() do
	local recipe = recipes:get(i - 1)
	if recipe:getName() == "Open Umbrella" then
		local result = recipe:getResult()
		if result:getType() == "UmbrellaRed" then
			result:setType("Pie")
			return
		end
	end
end

[Kielo]

Thanks! Tell me please, where can I check all recipe methods like getResult()? I need to change ingredients, but I can't realize how to get and work with them

[Tchernobill]

Partial answer:

Adding potential ingredients to evolved recipes it is easy, you need to create a dependency on ItemTweaker and tweak the EvolvedRecipe parameter of the item corresponding to the added ingredient.

 

require "ItemTweaker_Core"
--adds recipe to evolved recipe management for Base items. the num is the hunger removed from source item by each "use"
TweakItem("Coffee2", "EvolvedRecipe", "HotCoffeeIsothermalCanRecipe:6")
TweakItem("Teabag2", "EvolvedRecipe", "HotTeaIsothermalCanRecipe:5")

[Kielo]

Unfortunately, I'm working not on the EvolvedRecipes. But anyway, I am very thankful for the reply.

 

 

At least maybe I can disable/delete recipe via code? Like this:

function DisableVanillaCampfireRecipes()
    local recipes = getScriptManager():getAllRecipes()
    for i = 0, recipes:size() - 1 do
        local recipe = recipes:get(i)
        if recipe:getName() == "Make Campfire Kit" then
            local ingredients = recipe:getIngredients() -- pseudo-method to get ingredients
            for i = 0, ingredients:size() - 1 do
                local ingredient = ingredients:get(i)
                if ingredient.getType() == "Log" or ingredient.getType() == "Plank" then
                    recipe:Disable(); -- pseudo-method to delete/disable recipe
                    return
                end
            end
        end
    end
end

 

Edited February 13, 2022 by Kielo

[Tykvesh]

On 2/12/2022 at 2:55 PM, Kielo said:

Tell me please, where can I check all recipe methods like getResult()?

There's probably a better way, but you can get a list of functions by peeking into metatables:

--prints functions from userdata type objects
local function PrintUserdataFunctions(userdata)
	for k, v in pairs(getmetatable(userdata).__index) do
		print(k)
	end
end

PrintUserdataFunctions(getScriptManager():getRecipe("Base.Clean Bandage"))

--result:
getName
isHidden
getResult
getSource
getOriginalname
needToBeLearn
Load
getFullType
getSound
getHeat
getTooltip
getCategory
getLuaCreate
setLuaCreate
setOriginalname
setNeedToBeLearn
DoResult
setCategory
getRequiredSkills
getTimeToMake
addRequiredSkill
FindIndexOf
noBrokenItems
findSource
isKeep
setNearItem
isDestroy
setSound
getRequiredSkill
DoSource
isAllowFrozenItem
setLuaGrab
setAnimNode
getProp1
setStopOnWalk
setAllowFrozenItem
getProp2
isRemoveResultItem
setStopOnRun
getLuaGrab
isStopOnWalk
getLuaTest
getLuaGiveXP
setProp2
getAnimNode
setIsHidden
isStopOnRun
setLuaTest
setLuaGiveXP
getCanPerform
getNearItem
setProp1
setCanPerform
getRequiredSkillCount
clearRequiredSkills
setAllowDestroyedItem
getNumberOfNeededItem
getWaterAmountNeeded
setRemoveResultItem
setCanBeDoneFromFloor
isCanBeDoneFromFloor
isAllowDestroyedItem
getModule
wait
equals
toString
hashCode
getClass
notify
notifyAll