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path: root/patches/server/0491-Add-PlayerLoomPatternSelectEvent.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 25 Nov 2020 16:33:27 -0800
Subject: [PATCH] Add PlayerLoomPatternSelectEvent


diff --git a/src/main/java/net/minecraft/world/inventory/LoomMenu.java b/src/main/java/net/minecraft/world/inventory/LoomMenu.java
index a98157f600837898dd8ef12671c4bb713e30f30c..e8c755dc71d9818f025eb25224122b19c5f9e15b 100644
--- a/src/main/java/net/minecraft/world/inventory/LoomMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/LoomMenu.java
@@ -173,8 +173,36 @@ public class LoomMenu extends AbstractContainerMenu {
     @Override
     public boolean clickMenuButton(net.minecraft.world.entity.player.Player player, int id) {
         if (id >= 0 && id < this.selectablePatterns.size()) {
-            this.selectedBannerPatternIndex.set(id);
-            this.setupResultSlot((Holder) this.selectablePatterns.get(id));
+            // Paper start - Add PlayerLoomPatternSelectEvent
+            int selectablePatternIndex = id;
+            io.papermc.paper.event.player.PlayerLoomPatternSelectEvent event = new io.papermc.paper.event.player.PlayerLoomPatternSelectEvent((Player) player.getBukkitEntity(), ((CraftInventoryLoom) getBukkitView().getTopInventory()), org.bukkit.block.banner.PatternType.getByIdentifier(this.selectablePatterns.get(selectablePatternIndex).value().getHashname()));
+            if (!event.callEvent()) {
+                player.containerMenu.sendAllDataToRemote();
+                return false;
+            }
+            Holder<BannerPattern> selectedPattern = null;
+            for (int i = 0; i < this.selectablePatterns.size(); i++) {
+                final Holder<BannerPattern> holder = this.selectablePatterns.get(i);
+                if (event.getPatternType().getIdentifier().equals(holder.value().getHashname())) {
+                    selectablePatternIndex = i;
+                    selectedPattern = holder;
+                    break;
+                }
+            }
+            if (selectedPattern == null) {
+                for (BannerPattern pattern : BuiltInRegistries.BANNER_PATTERN) {
+                    if (event.getPatternType().getIdentifier().equals(pattern.getHashname())) {
+                        selectedPattern = BuiltInRegistries.BANNER_PATTERN.wrapAsHolder(pattern);
+                        break;
+                    }
+                }
+                selectablePatternIndex = -1;
+            }
+
+            player.containerMenu.sendAllDataToRemote();
+            this.selectedBannerPatternIndex.set(selectablePatternIndex);
+            this.setupResultSlot(java.util.Objects.requireNonNull(selectedPattern, "selectedPattern was null, this is unexpected"));
+            // Paper end - Add PlayerLoomPatternSelectEvent
             return true;
         } else {
             return false;