fix: added recipes for copper nugget <-> copper ingot

Author: desht

src/generated/resources/data/ftbmaterials/advancement/recipes/misc/copper_nugget.json

@@ -0,0 +1,40 @@
+{
+  "neoforge:conditions": [
+    {
+      "type": "ftbmaterials:components_available",
+      "used_materials": [
+        "copper_nugget"
+      ]
+    }
+  ],
+  "parent": "minecraft:recipes/root",
+  "criteria": {
+    "has_item": {
+      "conditions": {
+        "items": [
+          {
+            "items": "minecraft:copper_ingot"
+          }
+        ]
+      },
+      "trigger": "minecraft:inventory_changed"
+    },
+    "has_the_recipe": {
+      "conditions": {
+        "recipe": "ftbmaterials:copper_nugget"
+      },
+      "trigger": "minecraft:recipe_unlocked"
+    }
+  },
+  "requirements": [
+    [
+      "has_the_recipe",
+      "has_item"
+    ]
+  ],
+  "rewards": {
+    "recipes": [
+      "ftbmaterials:copper_nugget"
+    ]
+  }
+}

src/generated/resources/data/ftbmaterials/recipe/copper_nugget.json

@@ -0,0 +1,21 @@
+{
+  "neoforge:conditions": [
+    {
+      "type": "ftbmaterials:components_available",
+      "used_materials": [
+        "copper_nugget"
+      ]
+    }
+  ],
+  "type": "minecraft:crafting_shapeless",
+  "category": "misc",
+  "ingredients": [
+    {
+      "item": "minecraft:copper_ingot"
+    }
+  ],
+  "result": {
+    "count": 9,
+    "id": "ftbmaterials:copper_nugget"
+  }
+}

src/generated/resources/data/minecraft/advancement/recipes/misc/copper_ingot.json

@@ -0,0 +1,40 @@
+{
+  "neoforge:conditions": [
+    {
+      "type": "ftbmaterials:components_available",
+      "used_materials": [
+        "copper_nugget"
+      ]
+    }
+  ],
+  "parent": "minecraft:recipes/root",
+  "criteria": {
+    "has_item": {
+      "conditions": {
+        "items": [
+          {
+            "items": "ftbmaterials:copper_nugget"
+          }
+        ]
+      },
+      "trigger": "minecraft:inventory_changed"
+    },
+    "has_the_recipe": {
+      "conditions": {
+        "recipe": "minecraft:copper_ingot"
+      },
+      "trigger": "minecraft:recipe_unlocked"
+    }
+  },
+  "requirements": [
+    [
+      "has_the_recipe",
+      "has_item"
+    ]
+  ],
+  "rewards": {
+    "recipes": [
+      "minecraft:copper_ingot"
+    ]
+  }
+}

src/generated/resources/data/minecraft/recipe/copper_ingot.json

@@ -0,0 +1,26 @@
+{
+  "neoforge:conditions": [
+    {
+      "type": "ftbmaterials:components_available",
+      "used_materials": [
+        "copper_nugget"
+      ]
+    }
+  ],
+  "type": "minecraft:crafting_shaped",
+  "category": "misc",
+  "key": {
+    "N": {
+      "item": "ftbmaterials:copper_nugget"
+    }
+  },
+  "pattern": [
+    "NNN",
+    "NNN",
+    "NNN"
+  ],
+  "result": {
+    "count": 1,
+    "id": "minecraft:copper_ingot"
+  }
+}

src/main/java/dev/ftb/mods/ftbmaterials/data/RecipesGenerator.java

@@ -82,6 +82,9 @@ protected void buildRecipes(RecipeOutput output) {
                     .save(output.withConditions(ComponentsAvailableCondition.fromItems(inputReg, outputReg)));
         });
 
+        // Copper is special case (vanilla copper ingot but FTB Materials copper nugget)
+        createVanillaCopperNuggetRecipes(output);
+
         // Raw ore smelts to ingots
         createInputOutputRecipeFromTypes(ResourceType.RAW_ORE, ResourceType.INGOT, ResourceRegistryHolder::getItemFromType, ResourceRegistryHolder::getItemFromType, (inputItemLike, outputItemLike, inputReg, outputReg) -> {
             var inputName = inputReg.getId().getPath();
@@ -189,6 +192,21 @@ protected void buildRecipes(RecipeOutput output) {
         });
     }
 
+    private static void createVanillaCopperNuggetRecipes(RecipeOutput output) {
+        var copperNugget = ResourceRegistries.getItemOrThrow(Resource.COPPER, ResourceType.NUGGET);
+        ShapelessRecipeBuilder.shapeless(RecipeCategory.MISC, copperNugget.get(), 9)
+                .requires(Items.COPPER_INGOT)
+                .unlockedBy("has_item", has(Items.COPPER_INGOT))
+                .save(output.withConditions(ComponentsAvailableCondition.fromItems(copperNugget)));
+        ShapedRecipeBuilder.shaped(RecipeCategory.MISC, Items.COPPER_INGOT)
+                .define('N', copperNugget.get())
+                .pattern("NNN")
+                .pattern("NNN")
+                .pattern("NNN")
+                .unlockedBy("has_item", has(copperNugget.get()))
+                .save(output.withConditions(ComponentsAvailableCondition.fromItems(copperNugget)));
+    }
+
     private void addVanillaDustSmelting(Resource resource, Item vanillaIngot, RecipeOutput output) {
         ResourceRegistries.get(resource).getItemFromType(ResourceType.DUST).ifPresent(dustHolder -> {
             var inputName = dustHolder.getId().getPath();

src/main/java/dev/ftb/mods/ftbmaterials/resources/ResourceRegistries.java

@@ -1,5 +1,7 @@
 package dev.ftb.mods.ftbmaterials.resources;
 
+import net.minecraft.world.item.Item;
+import net.neoforged.neoforge.registries.DeferredHolder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -23,8 +25,12 @@ public static Collection<ResourceRegistryHolder> allHolders() {
         return RESOURCE_REGISTRY_HOLDERS.values();
     }
 
-    public static ResourceRegistryHolder get(Resource type) {
-        return RESOURCE_REGISTRY_HOLDERS.get(type);
+    public static ResourceRegistryHolder get(Resource resource) {
+        return RESOURCE_REGISTRY_HOLDERS.get(resource);
+    }
+
+    public static DeferredHolder<Item, Item> getItemOrThrow(Resource resource, ResourceType resourceType) {
+        return get(resource).getItemFromType(resourceType).orElseThrow();
     }
 
     public static void clearReverseLookups() {