From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 27 Nov 2020 17:14:27 -0800
Subject: [PATCH] Added PlayerStonecutterRecipeSelectEvent

Co-Authored-By: MiniDigger <admin@minidigger.me>

diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
index d2f762371f82d54bcec8b1a0a02d0866e55fd174..b5eeb2749237d589eafdfbea073bfe90e609600b 100644
--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
@@ -117,7 +117,7 @@ public abstract class AbstractContainerMenu {
         return slot;
     }
 
-    protected DataSlot addDataSlot(DataSlot containerproperty) {
+    protected DataSlot addDataSlot(DataSlot containerproperty) { return addDataSlot(containerproperty); } protected DataSlot addDataSlot(DataSlot containerproperty) { // Paper - OBFHELPER
         this.dataSlots.add(containerproperty);
         return containerproperty;
     }
diff --git a/src/main/java/net/minecraft/world/inventory/DataSlot.java b/src/main/java/net/minecraft/world/inventory/DataSlot.java
index 56d99e39f8cfe46a780bd17a0f99c3cbbe01c719..e851d6c8e5ad58091a58d489a48cd3ec379ce0da 100644
--- a/src/main/java/net/minecraft/world/inventory/DataSlot.java
+++ b/src/main/java/net/minecraft/world/inventory/DataSlot.java
@@ -20,7 +20,7 @@ public abstract class DataSlot {
         };
     }
 
-    public static DataSlot shared(final int[] array, final int index) {
+    public static DataSlot shared(final int[] aint, final int i) { return shared(aint, i); } public static DataSlot shared(final int[] array, final int index) { // Paper - OBFHELPER
         return new DataSlot() {
             @Override
             public int get() {
@@ -54,7 +54,7 @@ public abstract class DataSlot {
 
     public abstract void set(int value);
 
-    public boolean checkAndClearUpdateFlag() {
+    public boolean checkAndClearUpdateFlag() { return checkAndClearUpdateFlag(); } public boolean checkAndClearUpdateFlag() { // Paper - OBFHELPER
         int i = this.get();
         boolean flag = i != this.prevValue;
 
diff --git a/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java b/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
index 072bac443e7c54ac2b92e1d93b757bdacf230fbb..beb02f953719170d1668ada1c09d073d84bb7baf 100644
--- a/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
@@ -21,13 +21,14 @@ import org.bukkit.craftbukkit.inventory.CraftInventoryStonecutter;
 import org.bukkit.craftbukkit.inventory.CraftInventoryView;
 import org.bukkit.entity.Player;
 // CraftBukkit end
+import io.papermc.paper.event.player.PlayerStonecutterRecipeSelectEvent; // Paper
 
 public class StonecutterMenu extends AbstractContainerMenu {
 
     private final ContainerLevelAccess access;
     private final DataSlot selectedRecipeIndex;
     private final Level level;
-    private List<StonecutterRecipe> recipes;
+    private List<StonecutterRecipe> recipes; public final List<StonecutterRecipe> getRecipes() { return this.recipes; } // Paper - OBFHELPER
     private ItemStack input;
     private long lastSoundTime;
     final Slot inputSlot;
@@ -57,7 +58,7 @@ public class StonecutterMenu extends AbstractContainerMenu {
 
     public StonecutterMenu(int syncId, Inventory playerInventory, final ContainerLevelAccess context) {
         super(MenuType.STONECUTTER, syncId);
-        this.selectedRecipeIndex = DataSlot.standalone();
+        this.selectedRecipeIndex = addDataSlot(DataSlot.shared(new int[1], 0)); // Paper - allow replication
         this.recipes = Lists.newArrayList();
         this.input = ItemStack.EMPTY;
         this.slotUpdateListener = () -> {
@@ -135,13 +136,36 @@ public class StonecutterMenu extends AbstractContainerMenu {
     @Override
     public boolean clickMenuButton(net.minecraft.world.entity.player.Player player, int id) {
         if (this.isValidRecipeIndex(id)) {
-            this.selectedRecipeIndex.set(id);
+            // Paper start
+            int recipeIndex = id;
+            this.selectedRecipeIndex.set(recipeIndex);
+            this.selectedRecipeIndex.checkAndClearUpdateFlag(); // mark as changed
+            if (this.isValidRecipeIndex(id)) {
+                PlayerStonecutterRecipeSelectEvent event = new PlayerStonecutterRecipeSelectEvent((Player) player.getBukkitEntity(), (org.bukkit.inventory.StonecutterInventory) getBukkitView().getTopInventory(), (org.bukkit.inventory.StonecuttingRecipe) this.getRecipes().get(id).toBukkitRecipe());
+                if (!event.callEvent()) {
+                    ((Player) player.getBukkitEntity()).updateInventory();
+                    return false;
+                }
+                int newRecipeIndex;
+                if (!this.getRecipes().get(recipeIndex).getId().equals(org.bukkit.craftbukkit.util.CraftNamespacedKey.toMinecraft(event.getStonecuttingRecipe().getKey()))) { // If the recipe did NOT stay the same
+                    for (newRecipeIndex = 0; newRecipeIndex < this.getRecipes().size(); newRecipeIndex++) {
+                        if (this.getRecipes().get(newRecipeIndex).getId().equals(org.bukkit.craftbukkit.util.CraftNamespacedKey.toMinecraft(event.getStonecuttingRecipe().getKey()))) {
+                            recipeIndex = newRecipeIndex;
+                            break;
+                        }
+                    }
+                }
+            }
+            ((Player) player.getBukkitEntity()).updateInventory();
+            this.selectedRecipeIndex.set(recipeIndex); // set new index, so that listeners can read it
+            // Paper end
             this.setupResultSlot();
         }
 
         return true;
     }
 
+    private boolean isValidRecipeIndex(int index) { return this.isValidRecipeIndex(index); } // Paper - OBFHELPER
     private boolean isValidRecipeIndex(int i) {
         return i >= 0 && i < this.recipes.size();
     }