Paper/patches/server/0831-Add-ItemFactory-getMonsterEgg-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 14 Oct 2021 12:09:39 -0500
Subject: [PATCH] Add ItemFactory#getMonsterEgg API


diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
index aa7fd5c80712fecca1110341a234f60e8607b809..a30bb0a1dde5b5a7980331914a5f852e6bcd19dc 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
@@ -409,5 +409,17 @@ public final class CraftItemFactory implements ItemFactory {
             entity.getUniqueId().toString(),
             new net.md_5.bungee.api.chat.TextComponent(customName));
     }
+
+    @Override
+    public ItemStack getSpawnEgg(org.bukkit.entity.EntityType type) {
+        if (type == null) {
+            return null;
+        }
+        String typeId = type.getKey().toString();
+        net.minecraft.resources.ResourceLocation typeKey = new net.minecraft.resources.ResourceLocation(typeId);
+        net.minecraft.world.entity.EntityType<?> nmsType = net.minecraft.core.Registry.ENTITY_TYPE.get(typeKey);
+        net.minecraft.world.item.SpawnEggItem eggItem = net.minecraft.world.item.SpawnEggItem.BY_ID.get(nmsType);
+        return eggItem == null ? null : new net.minecraft.world.item.ItemStack(eggItem).asBukkitMirror();
+    }
     // Paper end
 }