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path: root/patches/server/1031-fix-horse-inventories.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 6 Jul 2024 13:57:10 -0700
Subject: [PATCH] fix horse inventories

Horse inventories now combine 2 inventories (like
result inventories).

== AT ==
public net/minecraft/world/inventory/HorseInventoryMenu SLOT_BODY_ARMOR

diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
index 9bcc0931510607b8fbd01233e2b3c346369b214d..467693a60786688b753cebac3b0a88898e332eee 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
@@ -112,7 +112,7 @@ public abstract class CraftAbstractHorse extends CraftAnimals implements Abstrac
 
     @Override
     public AbstractHorseInventory getInventory() {
-        return new CraftSaddledInventory(getHandle().inventory);
+        return new CraftSaddledInventory(getHandle().inventory, this.getHandle().getBodyArmorAccess()); // Paper - use both inventories
     }
 
     // Paper start - Horse API
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryAbstractHorse.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryAbstractHorse.java
index 4946da593713f4d11d88ac1bb68a089f2f6d5ae0..bae0db99a8159bdea71182485b22cce9fc61e00a 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryAbstractHorse.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryAbstractHorse.java
@@ -6,17 +6,64 @@ import org.bukkit.inventory.ItemStack;
 
 public class CraftInventoryAbstractHorse extends CraftInventory implements AbstractHorseInventory {
 
-    public CraftInventoryAbstractHorse(Container inventory) {
+    // Paper start - combine both horse inventories
+    private final Container bodyArmor;
+    public CraftInventoryAbstractHorse(Container inventory, final Container bodyArmor) {
         super(inventory);
+        this.bodyArmor = bodyArmor;
+        // Paper end - combine both horse inventories
     }
 
     @Override
     public ItemStack getSaddle() {
-        return this.getItem(0);
+        return this.getItem(net.minecraft.world.entity.animal.horse.AbstractHorse.INV_SLOT_SADDLE); // Paper
     }
 
     @Override
     public void setSaddle(ItemStack stack) {
-        this.setItem(0, stack);
+        this.setItem(net.minecraft.world.entity.animal.horse.AbstractHorse.INV_SLOT_SADDLE, stack); // Paper
     }
+
+    // Paper start - combine both horse inventories
+    public Container getMainInventory() {
+        return this.inventory;
+    }
+
+    public Container getArmorInventory() {
+        return this.bodyArmor;
+    }
+
+    public ItemStack getArmor() {
+        return this.getItem(net.minecraft.world.inventory.HorseInventoryMenu.SLOT_BODY_ARMOR);
+    }
+
+    public void setArmor(ItemStack armor) {
+        this.setItem(net.minecraft.world.inventory.HorseInventoryMenu.SLOT_BODY_ARMOR, armor);
+    }
+
+    @Override
+    public int getSize() {
+        return this.getMainInventory().getContainerSize() + this.getArmorInventory().getContainerSize();
+    }
+
+    @Override
+    public ItemStack getItem(final int index) {
+        if (index == net.minecraft.world.inventory.HorseInventoryMenu.SLOT_BODY_ARMOR) {
+            final net.minecraft.world.item.ItemStack item = this.getArmorInventory().getItem(index);
+            return item.isEmpty() ? null : CraftItemStack.asCraftMirror(item);
+        } else {
+            final net.minecraft.world.item.ItemStack item = this.getMainInventory().getItem(index);
+            return item.isEmpty() ? null : CraftItemStack.asCraftMirror(item);
+        }
+    }
+
+    @Override
+    public void setItem(final int index, final ItemStack item) {
+        if (index == net.minecraft.world.inventory.HorseInventoryMenu.SLOT_BODY_ARMOR) {
+            this.getArmorInventory().setItem(index, CraftItemStack.asNMSCopy(item));
+        } else {
+            this.getMainInventory().setItem(index, CraftItemStack.asNMSCopy(item));
+        }
+    }
+    // Paper end - combine both horse inventories
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
index 07a304edc2a7b3450a55728e78a4fe37febdbadc..ebf0da48378b9376b3be2ca731315485003f6a89 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
@@ -6,21 +6,9 @@ import org.bukkit.inventory.ItemStack;
 
 public class CraftInventoryHorse extends CraftSaddledInventory implements HorseInventory {
 
-    private final Container bodyArmorInventory;
-
+    // Paper start - properly combine both inventories
     public CraftInventoryHorse(Container inventory, Container bodyArmorInventory) {
-        super(inventory);
-        this.bodyArmorInventory = bodyArmorInventory;
-    }
-
-    @Override
-    public ItemStack getArmor() {
-        net.minecraft.world.item.ItemStack item = this.bodyArmorInventory.getItem(0);
-        return item.isEmpty() ? null : CraftItemStack.asCraftMirror(item);
-    }
-
-    @Override
-    public void setArmor(ItemStack stack) {
-        this.bodyArmorInventory.setItem(0, CraftItemStack.asNMSCopy(stack));
+        super(inventory, bodyArmorInventory);
     }
+    // Paper end - properly combine both inventories
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryLlama.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryLlama.java
index dcbc80646ebfc384c4f6ab1beee46a4b71a67af8..0804b642d966f2cb09f4101410e2ff1d154ea594 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryLlama.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryLlama.java
@@ -6,21 +6,19 @@ import org.bukkit.inventory.LlamaInventory;
 
 public class CraftInventoryLlama extends CraftInventoryAbstractHorse implements LlamaInventory {
 
-    private final Container bodyArmorInventory;
-
+    // Paper start - properly combine both inventories
     public CraftInventoryLlama(Container inventory, Container bodyArmorInventory) {
-        super(inventory);
-        this.bodyArmorInventory = bodyArmorInventory;
+        super(inventory, bodyArmorInventory);
+        // Paper end - properly combine both inventories
     }
 
     @Override
     public ItemStack getDecor() {
-        net.minecraft.world.item.ItemStack item = this.bodyArmorInventory.getItem(0);
-        return item.isEmpty() ? null : CraftItemStack.asCraftMirror(item);
+        return this.getArmor(); // Paper
     }
 
     @Override
     public void setDecor(ItemStack stack) {
-        this.bodyArmorInventory.setItem(0, CraftItemStack.asNMSCopy(stack));
+        this.setArmor(stack); // Paper
     }
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java
index 3a617c07d445bacf5a13e0e3ff6481823cfc8477..1c100c7c210485c1d3510745de7d18f58ba72557 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java
@@ -5,8 +5,10 @@ import org.bukkit.inventory.SaddledHorseInventory;
 
 public class CraftSaddledInventory extends CraftInventoryAbstractHorse implements SaddledHorseInventory {
 
-    public CraftSaddledInventory(Container inventory) {
-        super(inventory);
+    // Paper start - combine both inventories
+    public CraftSaddledInventory(Container inventory, final Container bodyArmor) {
+        super(inventory, bodyArmor);
+        // Paper end - combine both inventories
     }
 
 }