Add default recipe for Omnitool (code is thanks to @Melodi17)

Author: NegaNote

src/main/java/net/neganote/gtutilities/config/UtilConfig.java

@@ -33,7 +33,8 @@ public static class FeatureConfigs {
         @Configurable.Comment({ "Whether the Omnitool is enabled." })
         public boolean omnitoolEnabled = true;
         @Configurable
-        @Configurable.Comment({ "What tier the Omnitool is, if enabled. (ULV = 0, LV = 1, MV = 2, ...)" })
+        @Configurable.Comment({ "What tier the Omnitool is, if enabled. (ULV = 0, LV = 1, MV = 2, ...)",
+                "(Unless the default recipe is overridden, can only support up to IV!)" })
         public int omnitoolTier = GTValues.IV;
     }
 }

src/main/java/net/neganote/gtutilities/recipe/UtilRecipes.java

@@ -1,14 +1,17 @@
 package net.neganote.gtutilities.recipe;
 
 import com.gregtechceu.gtceu.api.GTValues;
+import com.gregtechceu.gtceu.common.data.GTItems;
 
 import net.minecraft.data.recipes.FinishedRecipe;
+import net.minecraft.world.item.ItemStack;
 import net.neganote.gtutilities.config.UtilConfig;
 
 import java.util.function.Consumer;
 
 import static com.gregtechceu.gtceu.common.data.GTRecipeTypes.ASSEMBLER_RECIPES;
 import static com.gregtechceu.gtceu.data.recipe.CraftingComponent.*;
+import static net.neganote.gtutilities.common.item.UtilItems.OMNITOOL;
 import static net.neganote.gtutilities.common.machine.UtilMachines.ENERGY_CONVERTER_64A;
 
 public class UtilRecipes {
@@ -17,6 +20,10 @@ public static void init(Consumer<FinishedRecipe> provider) {
         if (UtilConfig.INSTANCE.features.converters64aEnabled) {
             register64AConverterRecipes(provider);
         }
+
+        if (UtilConfig.INSTANCE.features.omnitoolEnabled) {
+            registerOmnitoolRecipe(provider);
+        }
     }
 
     public static void register64AConverterRecipes(Consumer<FinishedRecipe> provider) {
@@ -31,4 +38,27 @@ public static void register64AConverterRecipes(Consumer<FinishedRecipe> provider
                     .save(provider);
         }
     }
+
+    private static ItemStack getPowerUnit(int tier) {
+        return switch (tier) {
+            case GTValues.LV -> GTItems.POWER_UNIT_LV.asStack();
+            case GTValues.MV -> GTItems.POWER_UNIT_MV.asStack();
+            case GTValues.HV -> GTItems.POWER_UNIT_HV.asStack();
+            case GTValues.EV -> GTItems.POWER_UNIT_EV.asStack();
+            case GTValues.IV -> GTItems.POWER_UNIT_IV.asStack();
+            default -> throw new IllegalArgumentException("Invalid tier of power unit: " + tier);
+        };
+    }
+
+    public static void registerOmnitoolRecipe(Consumer<FinishedRecipe> provider) {
+        ASSEMBLER_RECIPES.recipeBuilder("omnitool")
+                .inputItems(getPowerUnit(UtilConfig.INSTANCE.features.omnitoolTier))
+                .inputItems(CIRCUIT.getIngredient(UtilConfig.INSTANCE.features.omnitoolTier), 2)
+                .inputItems(EMITTER.getIngredient(UtilConfig.INSTANCE.features.omnitoolTier), 1)
+                .inputItems(CABLE_QUAD.getIngredient(UtilConfig.INSTANCE.features.omnitoolTier), 3)
+                .inputItems(MOTOR.getIngredient(UtilConfig.INSTANCE.features.omnitoolTier), 2)
+                .outputItems(OMNITOOL)
+                .EUt(GTValues.VEX[UtilConfig.INSTANCE.features.omnitoolTier]).duration(20 * 60)
+                .save(provider);
+    }
 }