From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <blake.galbreath@gmail.com>
Date: Tue, 20 Sep 2022 17:56:21 -0500
Subject: [PATCH] Allay respect item NBT


diff --git a/src/main/java/net/minecraft/world/entity/animal/allay/Allay.java b/src/main/java/net/minecraft/world/entity/animal/allay/Allay.java
index d50bf1b980231a1045c1c9df622a9a50fc2ed893..7166f4a39fd615e10d7b1f53c57363832a41f365 100644
--- a/src/main/java/net/minecraft/world/entity/animal/allay/Allay.java
+++ b/src/main/java/net/minecraft/world/entity/animal/allay/Allay.java
@@ -407,9 +407,31 @@ public class Allay extends PathfinderMob implements InventoryCarrier, VibrationS
 
     @Override
     public boolean wantsToPickUp(ItemStack stack) {
-        ItemStack itemstack1 = this.getItemInHand(InteractionHand.MAIN_HAND);
-
-        return !itemstack1.isEmpty() && this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING) && this.inventory.canAddItem(stack) && this.allayConsidersItemEqual(itemstack1, stack);
+        // Purpur start
+        if (!this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
+            return false;
+        }
+        ItemStack itemStack = this.getItemInHand(InteractionHand.MAIN_HAND);
+        if (itemStack.isEmpty()) {
+            return false;
+        }
+        if (!allayConsidersItemEqual(itemStack, stack)) {
+            return false;
+        }
+        if (!this.inventory.canAddItem(stack)) {
+            return false;
+        }
+        for (String tag : this.level().purpurConfig.allayRespectNBT) {
+            if (stack.hasTag() && itemStack.hasTag()) {
+                Tag tag1 = stack.getTag().get(tag);
+                Tag tag2 = itemStack.getTag().get(tag);
+                if (!Objects.equals(tag1, tag2)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+        // Purpur end
     }
 
     private boolean allayConsidersItemEqual(ItemStack stack, ItemStack stack2) {
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index f246aff15aa9e281600ccd796038b663f7dc5f73..1a0bab0f586a3bba681f001b27421e81ee69537d 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1089,10 +1089,13 @@ public class PurpurWorldConfig {
     public boolean allayRidable = false;
     public boolean allayRidableInWater = true;
     public boolean allayControllable = true;
+    public List<String> allayRespectNBT = new ArrayList<>();
     private void allaySettings() {
         allayRidable = getBoolean("mobs.allay.ridable", allayRidable);
         allayRidableInWater = getBoolean("mobs.allay.ridable-in-water", allayRidableInWater);
         allayControllable = getBoolean("mobs.allay.controllable", allayControllable);
+        allayRespectNBT.clear();
+        getList("mobs.allay.respect-nbt", new ArrayList<>()).forEach(key -> allayRespectNBT.add(key.toString()));
     }
 
     public boolean axolotlRidable = false;