Custom Recipe Modifiers / Data Logic

Adding a Modifier

Custom recipe modifiers in KubeJS are done through a function. For this example, we will make multiblock that requires temperature for recipes, like the EBF does.

temperature_recipe_modifier.js

const $GTRecipe = Java.loadClass("com.gregtechceu.gtceu.api.recipe.GTRecipe");
const $MetaMachine = Java.loadClass("com.gregtechceu.gtceu.api.machine.MetaMachine");

function TemperatureModifier(machine, recipe) {
    if (!(machine instanceof $MetaMachine)) return ModifierFunction.NULL // (1)
    if (!(recipe instanceof $GTRecipe)) return ModifierFunction.NULL

    if (!machine instanceof $CoilWorkableElectricMultiblockMachine) {
        return $RecipeModifier.nullWrongType($CoilWorkableElectricMultiblockMachine, machine);
    } else {

        let temp = machine.getCoilType().getCoilTemperature() // (3)

        let recipeTemp = recipe.data.getInt("RequiredTemp") // (4)
        if (recipeTemp > temp) {
            return ModifierFunction.NULL
        }
        return ModifierFunction.IDENTITY // (2)
    }
}

1. ModifierFunction.NULL Stops recipe.
2. ModifierFunction.IDENTITY Starts recipe.
3. Getting the coil temperature, multiblock must contain .heatingCoils() in any of its keys.
4. Checking if coil temperature is high enough.

Using Modifier

example_temperature_multiblock.js

const $CoilWorkableElectricMultiblockMachine = Java.loadClass("com.gregtechceu.gtceu.api.machine.multiblock.CoilWorkableElectricMultiblockMachine");

GTCEuStartupEvents.registry('gtceu:recipe_type', event => {
    event.create('example_smelting')
        .category('multiblock')
        .setMaxIOSize(1, 1, 0, 0)
        .setProgressBar(GuiTextures.PROGRESS_BAR_FUSION, FillDirection.LEFT_TO_RIGHT)
        .setSound(GTSoundEntries.BATH);
});

GTCEuStartupEvents.registry('gtceu:machine', event => {

    GTRecipeTypes.get("example_smelting").addDataInfo((data) => (
        `Temperature: ${data.getInt("RequiredTemp")}K` // (4)
    )) // (3)

    event.create('example_smelter', 'multiblock')
        .rotationState(RotationState.NON_Y_AXIS)
        .machine((holder) => new $CoilWorkableElectricMultiblockMachine(holder)) // (1)
        .recipeType('alchemy')
        .recipeModifiers([(machine, recipe) => TemperatureModifier(machine, recipe)]) // (2)
        .appearanceBlock(() => Block.getBlock("gtceu:solid_machine_casing"))
        .pattern(definition => FactoryBlockPattern.start()
            .aisle('###','HHH','###')
            .aisle('###','H H','###')
            .aisle('#C#','HHH','###')
            .where('C', Predicates.controller(Predicates.blocks(definition.get())))
            .where('#', Predicates.blocks("gtceu:solid_machine_casing")
                .or(Predicates.abilities(PartAbility.IMPORT_ITEMS).setPreviewCount(1))
                .or(Predicates.abilities(PartAbility.EXPORT_ITEMS).setPreviewCount(1))
                .or(Predicates.abilities(PartAbility.INPUT_ENERGY).setMaxGlobalLimited(1).setPreviewCount(1)))
            .where('H', Predicates.heatingCoils())
            .where(' ', Predicates.any())
            .build())
        .workableCasingModel("gtceu:block/casings/solid/machine_casing_solid_steel", "gtceu:block/multiblock/blast_furnace")
})

1. Making multiblock coilMachine, without it our modifier won't work.
2. Using our modifier.
3. Display our data in EMI.
4. Getting RequiredTemp data from our recipe.

Using our Modifier in a Recipe

To use our modifier in recipe, you need to add data to it.

example_smelting.js

ServerEvents.recipes(event => {
    event.recipes.gtceu.example_smelting('example:diamondirt')
        .itemInputs('minecraft:dirt')
        .itemOutputs('gtceu:raw_diamond')
        .addData("RequiredTemp", 1000) // (1)
        .duration(320)
        .EUt(GTValues.VA[GTValues.LV]);
})

1. Adding data to our recipe, in this situation - Temperature