WIP: Added item texture and implemented builder method.

src/generated/resources/assets/firefly_bush_backport/models/item/firefly_bush.json

@@ -1,3 +1,6 @@
 {
-  "parent": "firefly_bush_backport:block/firefly_bush"
+  "parent": "minecraft:item/generated",
+  "textures": {
+    "layer0": "firefly_bush_backport:item/firefly_bush"
+  }
 }

src/main/java/dev/micle/firefly_bush_backport/data/client/ModItemModelProvider.java

@@ -5,7 +5,9 @@ import dev.micle.firefly_bush_backport.block.ModBlocks;
 import net.minecraft.data.DataGenerator;
 import net.minecraft.world.item.Items;
 import net.minecraft.world.level.block.Block;
+import net.minecraftforge.client.model.generators.ItemModelBuilder;
 import net.minecraftforge.client.model.generators.ItemModelProvider;
+import net.minecraftforge.client.model.generators.ModelFile;
 import net.minecraftforge.common.data.ExistingFileHelper;
 import net.minecraftforge.registries.ForgeRegistries;
 import net.minecraftforge.registries.RegistryObject;
@@ -23,9 +25,16 @@ public class ModItemModelProvider extends ItemModelProvider {
     }
 
     private void blockItemModel(Block block) {
-        if (block.asItem() != Items.AIR) {
         String name = Objects.requireNonNull(ForgeRegistries.BLOCKS.getKey(block)).getPath();
+
+        if (block == ModBlocks.FIREFLY_BUSH.get()) {
+            builder(getExistingFile(mcLoc("item/generated")), name);
+        } else if (block.asItem() != Items.AIR) {
             withExistingParent(name, modLoc("block/" + name));
         }
     }
+
+    private ItemModelBuilder builder(ModelFile itemGenerated, String name) {
+        return getBuilder(name).parent(itemGenerated).texture("layer0", "item/" + name);
+    }
 }