From 2f3bc6acd93db155b1c100be54efd43800ac3985 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?William=20Herg=C3=A8s?= <william@herges.fr>
Date: Sun, 12 Oct 2025 18:13:23 +0200
Subject: feat(heart): custom recipe

is only nether star, must mixin Item::onCraft to handle it
---
 build.gradle                                       |  6 ++++
 .../java/world/anhgelus/lifesteal/LifeStealer.java |  3 +-
 .../anhgelus/lifesteal/datagen/CraftProvider.java  | 42 ++++++++++++++++++++++
 .../anhgelus/lifesteal/datagen/DataGenerator.java  | 12 +++++++
 src/main/resources/fabric.mod.json                 |  3 ++
 5 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/world/anhgelus/lifesteal/datagen/CraftProvider.java
 create mode 100644 src/main/java/world/anhgelus/lifesteal/datagen/DataGenerator.java

diff --git a/build.gradle b/build.gradle
index a4bb960..92c4dd2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,6 +10,12 @@ base {
     archivesName = project.archives_base_name
 }
 
+fabricApi {
+    configureDataGeneration() {
+        client = true
+    }
+}
+
 repositories {
     // Add repositories to retrieve artifacts from in here.
     // You should only use this when depending on other mods because
diff --git a/src/main/java/world/anhgelus/lifesteal/LifeStealer.java b/src/main/java/world/anhgelus/lifesteal/LifeStealer.java
index 9052515..5036b4e 100644
--- a/src/main/java/world/anhgelus/lifesteal/LifeStealer.java
+++ b/src/main/java/world/anhgelus/lifesteal/LifeStealer.java
@@ -11,6 +11,7 @@ import net.minecraft.item.Items;
 import net.minecraft.nbt.NbtCompound;
 import net.minecraft.server.BannedPlayerEntry;
 import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.text.Text;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.math.MathHelper;
 
@@ -53,7 +54,7 @@ public class LifeStealer {
         final var nbt = new NbtCompound();
         nbt.putString(PLAYER_KEY, player.getUuid().toString());
         final var is = new ItemStack(Items.NETHER_STAR);
-        is.set(DataComponentTypes.CUSTOM_NAME, player.getName());
+        is.set(DataComponentTypes.CUSTOM_NAME, Text.empty().append(Text.of("Heart of ")).append(player.getName()));
         is.set(DataComponentTypes.CUSTOM_DATA, NbtComponent.of(nbt));
         return is;
     }
diff --git a/src/main/java/world/anhgelus/lifesteal/datagen/CraftProvider.java b/src/main/java/world/anhgelus/lifesteal/datagen/CraftProvider.java
new file mode 100644
index 0000000..69763e0
--- /dev/null
+++ b/src/main/java/world/anhgelus/lifesteal/datagen/CraftProvider.java
@@ -0,0 +1,42 @@
+package world.anhgelus.lifesteal.datagen;
+
+import net.fabricmc.fabric.api.datagen.v1.FabricDataOutput;
+import net.fabricmc.fabric.api.datagen.v1.provider.FabricRecipeProvider;
+import net.minecraft.data.recipe.RecipeExporter;
+import net.minecraft.data.recipe.RecipeGenerator;
+import net.minecraft.item.Items;
+import net.minecraft.recipe.book.RecipeCategory;
+import net.minecraft.registry.RegistryWrapper;
+
+import java.util.concurrent.CompletableFuture;
+
+public class CraftProvider extends FabricRecipeProvider {
+    public CraftProvider(FabricDataOutput output, CompletableFuture<RegistryWrapper.WrapperLookup> registriesFuture) {
+        super(output, registriesFuture);
+    }
+
+    @Override
+    protected RecipeGenerator getRecipeGenerator(RegistryWrapper.WrapperLookup registryLookup, RecipeExporter exporter) {
+        return new RecipeGenerator(registryLookup, exporter) {
+            @Override
+            public void generate() {
+                final var base = createShaped(RecipeCategory.COMBAT, Items.NETHER_STAR)
+                        .pattern("sns")
+                        .pattern("nrn")
+                        .pattern("sns")
+                        .input('s', Items.NAUTILUS_SHELL)
+                        .input('n', Items.NETHERITE_INGOT)
+                        .criterion(hasItem(Items.NETHERITE_INGOT), conditionsFromItem(Items.NETHERITE_INGOT));
+                base.input('r', Items.OMINOUS_TRIAL_KEY).offerTo(exporter);
+                base.input('r', Items.DRAGON_HEAD).offerTo(exporter);
+                base.input('r', Items.WITHER_SKELETON_SKULL).offerTo(exporter);
+            }
+        };
+    }
+
+
+    @Override
+    public String getName() {
+        return "LifeStealRecipesProvider";
+    }
+}
diff --git a/src/main/java/world/anhgelus/lifesteal/datagen/DataGenerator.java b/src/main/java/world/anhgelus/lifesteal/datagen/DataGenerator.java
new file mode 100644
index 0000000..3c82011
--- /dev/null
+++ b/src/main/java/world/anhgelus/lifesteal/datagen/DataGenerator.java
@@ -0,0 +1,12 @@
+package world.anhgelus.lifesteal.datagen;
+
+import net.fabricmc.fabric.api.datagen.v1.DataGeneratorEntrypoint;
+import net.fabricmc.fabric.api.datagen.v1.FabricDataGenerator;
+
+public class DataGenerator implements DataGeneratorEntrypoint {
+    @Override
+    public void onInitializeDataGenerator(FabricDataGenerator fabricDataGenerator) {
+        final var pack = fabricDataGenerator.createPack();
+        pack.addProvider(CraftProvider::new);
+    }
+}
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index 805e28b..74ba1e7 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -12,6 +12,9 @@
   "entrypoints": {
     "main": [
       "world.anhgelus.lifesteal.LifeSteal"
+    ],
+    "fabric-datagen": [
+      "world.anhgelus.lifesteal.datagen.DataGenerator"
     ]
   },
   "mixins": [
-- 
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