From bd83a6b30daee414f057f84a5b05a3258ab41fee Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 3 Oct 2020 17:48:06 -0500
Subject: [PATCH] Add predicate to recipe's ExactChoice ingredient (missing NMS
 side)

---
 ...e-to-recipe-s-ExactChoice-ingredient.patch | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 patches/server/0132-Add-predicate-to-recipe-s-ExactChoice-ingredient.patch

diff --git a/patches/server/0132-Add-predicate-to-recipe-s-ExactChoice-ingredient.patch b/patches/server/0132-Add-predicate-to-recipe-s-ExactChoice-ingredient.patch
new file mode 100644
index 000000000..4e803f93d
--- /dev/null
+++ b/patches/server/0132-Add-predicate-to-recipe-s-ExactChoice-ingredient.patch
@@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <Blake.Galbreath@GMail.com>
+Date: Sat, 3 Oct 2020 17:40:52 -0500
+Subject: [PATCH] Add predicate to recipe's ExactChoice ingredient
+
+
+diff --git a/src/main/java/net/minecraft/server/RecipeItemStack.java b/src/main/java/net/minecraft/server/RecipeItemStack.java
+index 0f96abd0ca..f6d9294940 100644
+--- a/src/main/java/net/minecraft/server/RecipeItemStack.java
++++ b/src/main/java/net/minecraft/server/RecipeItemStack.java
+@@ -26,6 +26,7 @@ public final class RecipeItemStack implements Predicate<ItemStack> {
+     public ItemStack[] choices;
+     private IntList d;
+     public boolean exact; // CraftBukkit
++    public Predicate<org.bukkit.inventory.ItemStack> predicate; // Purpur
+ 
+     public RecipeItemStack(Stream<? extends RecipeItemStack.Provider> stream) {
+         this.b = (RecipeItemStack.Provider[]) stream.toArray((i) -> {
+@@ -52,6 +53,12 @@ public final class RecipeItemStack implements Predicate<ItemStack> {
+             if (this.choices.length == 0) {
+                 return itemstack.isEmpty();
+             } else {
++                // Purpur start
++                if (predicate != null) {
++                    return predicate.test(itemstack.asBukkitCopy());
++                }
++                // Purpur end
++
+                 ItemStack[] aitemstack = this.choices;
+                 int i = aitemstack.length;
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
+index ef29599a89..18413e6327 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftRecipe.java
+@@ -22,6 +22,7 @@ public interface CraftRecipe extends Recipe {
+         } else if (bukkit instanceof RecipeChoice.ExactChoice) {
+             stack = new RecipeItemStack(((RecipeChoice.ExactChoice) bukkit).getChoices().stream().map((mat) -> new net.minecraft.server.RecipeItemStack.StackProvider(CraftItemStack.asNMSCopy(mat))));
+             stack.exact = true;
++            stack.predicate = ((RecipeChoice.ExactChoice) bukkit).getPredicate(); // Purpur
+         } else {
+             throw new IllegalArgumentException("Unknown recipe stack instance " + bukkit);
+         }