Add PrepareGrindstoneEvent

Spigot-API-Patches/0213-Add-PrepareGrindstoneEvent.patch

@@ -0,0 +1,66 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jan Tuck <jan@tuck.dk>
+Date: Sat, 20 Jun 2020 22:34:21 +0200
+Subject: [PATCH] Add PrepareGrindstoneEvent
+
+
+diff --git a/src/main/java/com/destroystokyo/paper/event/inventory/PrepareGrindstoneEvent.java b/src/main/java/com/destroystokyo/paper/event/inventory/PrepareGrindstoneEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..889185bf73ef2d834e5d416d1cf13c2363453c42
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/event/inventory/PrepareGrindstoneEvent.java
+@@ -0,0 +1,54 @@
++package com.destroystokyo.paper.event.inventory;
++
++import org.bukkit.event.HandlerList;
++import org.bukkit.event.inventory.InventoryEvent;
++import org.bukkit.inventory.GrindstoneInventory;
++import org.bukkit.inventory.InventoryView;
++import org.bukkit.inventory.ItemStack;
++import org.jetbrains.annotations.NotNull;
++import org.jetbrains.annotations.Nullable;
++
++/**
++ * Called when an item is put in a slot for grinding in a Grindstone
++ */
++public class PrepareGrindstoneEvent extends InventoryEvent {
++
++    private static final HandlerList handlers = new HandlerList();
++    private ItemStack result;
++
++    public PrepareGrindstoneEvent(@NotNull InventoryView inventory, @Nullable ItemStack result) {
++        super(inventory);
++        this.result = result;
++    }
++
++    @NotNull
++    @Override
++    public GrindstoneInventory getInventory() {
++        return (GrindstoneInventory) super.getInventory();
++    }
++
++    /**
++     * Get result item, may be null.
++     *
++     * @return result item
++     */
++    @Nullable
++    public ItemStack getResult() {
++        return result;
++    }
++
++    public void setResult(@Nullable ItemStack result) {
++        this.result = result;
++    }
++
++    @NotNull
++    @Override
++    public HandlerList getHandlers() {
++        return handlers;
++    }
++
++    @NotNull
++    public static HandlerList getHandlerList() {
++        return handlers;
++    }
++}

Spigot-Server-Patches/0548-Add-PrepareGrindstoneEvent.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jan Tuck <jan@tuck.dk>
+Date: Sat, 20 Jun 2020 22:34:20 +0200
+Subject: [PATCH] Add PrepareGrindstoneEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/ContainerGrindstone.java b/src/main/java/net/minecraft/server/ContainerGrindstone.java
+index ed88e208d00f3b19b5c5916cf87513ab511a5fb1..83cb0cd64c81eb35fa49eecff93b40f08e0a5606 100644
+--- a/src/main/java/net/minecraft/server/ContainerGrindstone.java
++++ b/src/main/java/net/minecraft/server/ContainerGrindstone.java
+@@ -10,6 +10,10 @@ import org.bukkit.craftbukkit.inventory.CraftInventoryGrindstone;
+ import org.bukkit.craftbukkit.inventory.CraftInventoryView;
+ import org.bukkit.entity.Player;
+ // CraftBukkit end
++// Paper start
++import org.bukkit.craftbukkit.inventory.CraftItemStack;
++import com.destroystokyo.paper.event.inventory.PrepareGrindstoneEvent;
++// Paper end
+ 
+ public class ContainerGrindstone extends Container {
+ 
+@@ -144,6 +148,11 @@ public class ContainerGrindstone extends Container {
+         super.a(iinventory);
+         if (iinventory == this.craftInventory) {
+             this.e();
++            // Paper start
++            PrepareGrindstoneEvent event = new PrepareGrindstoneEvent(this.getBukkitView(), CraftItemStack.asBukkitCopy(this.resultInventory.getItem(0)));
++            event.callEvent();
++            this.resultInventory.setItem(0, CraftItemStack.asNMSCopy(event.getResult()));
++            // Paper end
+         }
+ 
+     }