From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Wed, 23 Nov 2022 20:18:05 +0100
Subject: [PATCH] Remove iterators from Inventory#contains

License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
Gale - https://galemc.org

This patch is based on the following patch:
"Remove iterators from inventory contains"
By: Paul Sauve <paul@technove.co>
As part of: Airplane (https://github.com/TECHNOVE/Airplane)
Licensed under: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)

* Airplane copyright *

Airplane
Copyright (C) 2020 Technove LLC

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

diff --git a/src/main/java/net/minecraft/world/entity/player/Inventory.java b/src/main/java/net/minecraft/world/entity/player/Inventory.java
index 27c028ab6b1edb6e413af3bbaa27bf30f2d85540..5e0e5a59fced422b931009f98550fd0f8729d9f4 100644
--- a/src/main/java/net/minecraft/world/entity/player/Inventory.java
+++ b/src/main/java/net/minecraft/world/entity/player/Inventory.java
@@ -682,6 +682,8 @@ public class Inventory implements Container, Nameable {
     }
 
     public boolean contains(ItemStack stack) {
+        // Gale start - Airplane - remove iterators from Inventory#contains
+        /*
         Iterator iterator = this.compartments.iterator();
 
         while (iterator.hasNext()) {
@@ -696,7 +698,18 @@ public class Inventory implements Container, Nameable {
                 }
             }
         }
+         */
+        for (int i = 0; i < this.compartments.size(); i++) {
+            List<ItemStack> list = this.compartments.get(i);
+            for (int j = 0; j < list.size(); j++) {
+                ItemStack itemstack1 = list.get(j);
 
+                if (!itemstack1.isEmpty() && itemstack1.sameItem(stack)) {
+                    return true;
+                }
+            }
+        }
+        // Gale end - Airplane - remove iterators from Inventory#contains
         return false;
     }