尝试调整物品模型生成方法

src/generated/resources/.cache/b69ee8a2655365569b979911c0440daa8c470ac2

@@ -1,4 +1,4 @@
-// 1.21.1	2025-05-13T23:50:15.1356608	Item Models: superbwarfare
+// 1.21.1	2025-05-21T21:13:24.0760608	Item Models: superbwarfare
 13ca8d5676888ff51f3308d88e4bf67691fa34f8 assets/superbwarfare/models/item/aa_12_blueprint.json
 0a9bfb695c2b5668863a2de4770f5bfca663c1dc assets/superbwarfare/models/item/agm.json
 29ad5daadcdf7c10771fc45b649c527d16325cbb assets/superbwarfare/models/item/aircraft_catapult.json
@@ -7,6 +7,9 @@
 c993bddc0db9453ffbefa59f9ac9a74dba909038 assets/superbwarfare/models/item/ancient_cpu.json
 a5cf666a970906ba6ac0af9a4d5d52dd0e093dec assets/superbwarfare/models/item/annihilator_blueprint.json
 4b8fe8fbe5e64c3449ad539317254e4ed7188411 assets/superbwarfare/models/item/ap_head.json
+0d41599d73bef0eefd40b54bb4940fe2e8e03da6 assets/superbwarfare/models/item/aurelia_sceptre.json
+47b117e79990f208022980edf27898c559c715f4 assets/superbwarfare/models/item/aurelia_sceptre_base.json
+a207f0f01b87315d1b85fc3ea69bf52b2bd5c71a assets/superbwarfare/models/item/aurelia_sceptre_icon.json
 984c08ca6f6893a15721a85e30118f9e32c65c7f assets/superbwarfare/models/item/barbed_wire.json
 e8f16946c6f9429989d05e9ec250a72ffc64f9e1 assets/superbwarfare/models/item/beam_test.json
 bda38dd5cb3ca4c3e289a012c0529609ac02ded2 assets/superbwarfare/models/item/beast.json

src/generated/resources/assets/superbwarfare/models/item/aurelia_sceptre.json

@@ -0,0 +1,28 @@
+{
+  "parent": "minecraft:item/generated",
+  "base": {
+    "parent": "superbwarfare:item/aurelia_sceptre_base"
+  },
+  "gui_light": "front",
+  "loader": "neoforge:separate_transforms",
+  "perspectives": {
+    "fixed": {
+      "parent": "superbwarfare:lod/aurelia_sceptre"
+    },
+    "ground": {
+      "parent": "superbwarfare:lod/aurelia_sceptre"
+    },
+    "gui": {
+      "parent": "superbwarfare:item/aurelia_sceptre_icon"
+    },
+    "head": {
+      "parent": "superbwarfare:lod/aurelia_sceptre"
+    },
+    "thirdperson_lefthand": {
+      "parent": "superbwarfare:lod/aurelia_sceptre"
+    },
+    "thirdperson_righthand": {
+      "parent": "superbwarfare:lod/aurelia_sceptre"
+    }
+  }
+}

src/generated/resources/assets/superbwarfare/models/item/aurelia_sceptre_base.json

@@ -0,0 +1,6 @@
+{
+  "parent": "superbwarfare:displaysettings/aurelia_sceptre.item",
+  "textures": {
+    "layer0": "superbwarfare:item/aurelia_sceptre"
+  }
+}

src/generated/resources/assets/superbwarfare/models/item/aurelia_sceptre_icon.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "superbwarfare:item/aurelia_sceptre_icon"
+  }
+}

src/main/java/com/atsuishio/superbwarfare/datagen/CustomSeparateModelBuilder.java

@@ -0,0 +1,61 @@
+package com.atsuishio.superbwarfare.datagen;
+
+import com.google.common.base.Preconditions;
+import com.google.gson.JsonObject;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.ItemDisplayContext;
+import net.neoforged.neoforge.client.model.generators.CustomLoaderBuilder;
+import net.neoforged.neoforge.client.model.generators.ModelBuilder;
+import net.neoforged.neoforge.common.data.ExistingFileHelper;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+public class CustomSeparateModelBuilder<T extends ModelBuilder<T>> extends CustomLoaderBuilder<T> {
+
+    public static <T extends ModelBuilder<T>> CustomSeparateModelBuilder<T> begin(T parent, ExistingFileHelper existingFileHelper) {
+        return new CustomSeparateModelBuilder<>(parent, existingFileHelper);
+    }
+
+    private String base;
+    private final Map<String, String> childModels = new LinkedHashMap<>();
+
+    protected CustomSeparateModelBuilder(T parent, ExistingFileHelper existingFileHelper) {
+        super(ResourceLocation.parse("neoforge:separate_transforms"), parent, existingFileHelper, true);
+    }
+
+    public CustomSeparateModelBuilder<T> base(String location) {
+        Preconditions.checkNotNull(location, "location must not be null");
+        base = location;
+        return this;
+    }
+
+    public CustomSeparateModelBuilder<T> perspective(ItemDisplayContext perspective, String location) {
+        Preconditions.checkNotNull(perspective, "perspective must not be null");
+        Preconditions.checkNotNull(location, "location must not be null");
+        childModels.put(perspective.getSerializedName(), location);
+        return this;
+    }
+
+    @Override
+    public @NotNull JsonObject toJson(@NotNull JsonObject json) {
+        json = super.toJson(json);
+
+        if (this.base != null) {
+            var base = new JsonObject();
+            base.addProperty("parent", this.base);
+            json.add("base", base);
+        }
+
+        JsonObject parts = new JsonObject();
+        for (Map.Entry<String, String> entry : childModels.entrySet()) {
+            var part = new JsonObject();
+            part.addProperty("parent", entry.getValue());
+            parts.add(entry.getKey(), part);
+        }
+        json.add("perspectives", parts);
+
+        return json;
+    }
+}

src/main/java/com/atsuishio/superbwarfare/datagen/ModItemModelProvider.java

@@ -4,13 +4,16 @@ import com.atsuishio.superbwarfare.Mod;
 import com.atsuishio.superbwarfare.init.ModBlocks;
 import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.item.common.BlueprintItem;
+import net.minecraft.client.renderer.block.model.BlockModel;
 import net.minecraft.core.registries.BuiltInRegistries;
 import net.minecraft.data.PackOutput;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemDisplayContext;
 import net.minecraft.world.level.block.Block;
 import net.neoforged.neoforge.client.model.generators.ItemModelBuilder;
 import net.neoforged.neoforge.client.model.generators.ItemModelProvider;
+import net.neoforged.neoforge.client.model.generators.ModelFile;
 import net.neoforged.neoforge.common.data.ExistingFileHelper;
 import net.neoforged.neoforge.registries.DeferredHolder;
 
@@ -23,6 +26,9 @@ public class ModItemModelProvider extends ItemModelProvider {
 
     @Override
     protected void registerModels() {
+        // test
+        gunItem(ModItems.AURELIA_SCEPTRE);
+
         simpleItem(ModItems.EMPTY_PERK, "perk/");
 
         simpleItem(ModItems.MORTAR_SHELL);
@@ -205,4 +211,39 @@ public class ModItemModelProvider extends ItemModelProvider {
         return withExistingParent(item.getId().getPath(), ResourceLocation.withDefaultNamespace("item/handheld"))
                 .texture("layer0", Mod.loc("item/" + item.getId().getPath()));
     }
+
+    private ItemModelBuilder gunIcon(DeferredHolder<Item, ? extends Item> item) {
+        return withExistingParent(item.getId().getPath() + "_icon", ResourceLocation.withDefaultNamespace("item/generated"))
+                .texture("layer0", Mod.loc("item/" + item.getId().getPath() + "_icon"));
+    }
+
+    private ItemModelBuilder gunBase(DeferredHolder<Item, ? extends Item> item) {
+        return getBuilder(item.getId().getPath() + "_base")
+                .parent(new ModelFile.UncheckedModelFile(modLoc("displaysettings/" + item.getId().getPath() + ".item")))
+                .texture("layer0", Mod.loc("item/" + item.getId().getPath()));
+    }
+
+    private ItemModelBuilder customSeparatedGunModel(DeferredHolder<Item, ? extends Item> item) {
+        String lod = modLoc("lod/" + item.getId().getPath()).toString();
+        String base = modLoc("item/" + item.getId().getPath() + "_base").toString();
+        String icon = modLoc("item/" + item.getId().getPath() + "_icon").toString();
+
+        return withExistingParent(item.getId().getPath(), ResourceLocation.withDefaultNamespace("item/generated"))
+                .guiLight(BlockModel.GuiLight.FRONT)
+                .customLoader(CustomSeparateModelBuilder::begin)
+                .base(base)
+                .perspective(ItemDisplayContext.FIXED, lod)
+                .perspective(ItemDisplayContext.HEAD, lod)
+                .perspective(ItemDisplayContext.GROUND, lod)
+                .perspective(ItemDisplayContext.THIRD_PERSON_RIGHT_HAND, lod)
+                .perspective(ItemDisplayContext.THIRD_PERSON_LEFT_HAND, lod)
+                .perspective(ItemDisplayContext.GUI, icon)
+                .end();
+    }
+
+    private void gunItem(DeferredHolder<Item, ? extends Item> item) {
+        this.gunIcon(item);
+        this.gunBase(item);
+        this.customSeparatedGunModel(item);
+    }
 }