Add ItemStackRecipeChoice Draft API

This is based on Spigots Draft API. This is subject to change

Allows creating recipes that must match isSimilar to full item stack.

Spigot-API-Patches/0151-Add-ItemStackRecipeChoice-Draft-API.patch

@@ -0,0 +1,69 @@
+From d18aff755cf3e94ecc7da5eff26a6cfb85d17163 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 13 Sep 2018 21:39:26 -0400
+Subject: [PATCH] Add ItemStackRecipeChoice Draft API
+
+This is based on Spigots Draft API. This is subject to change
+
+Allows creating recipes that must match isSimilar to full item stack.
+
+diff --git a/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java b/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java
+new file mode 100644
+index 000000000..43e6576b1
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java
+@@ -0,0 +1,51 @@
++package com.destroystokyo.paper.inventory;
++
++import org.bukkit.inventory.ItemStack;
++import org.bukkit.inventory.RecipeChoice;
++
++import java.util.ArrayList;
++import java.util.List;
++
++/**
++ * Allows crafting Items that require full matching itemstacks to complete the recipe for custom items
++ * @deprecated Draft API
++ */
++@Deprecated
++public class ItemStackRecipeChoice implements RecipeChoice {
++
++    protected final List<ItemStack> choices = new ArrayList<>();
++
++    public ItemStackRecipeChoice(ItemStack choices) {
++        this.choices.add(choices);
++    }
++
++    public ItemStackRecipeChoice(List<ItemStack> choices) {
++        this.choices.addAll(choices);
++    }
++
++    @Override
++    public ItemStack getItemStack() {
++        return choices.isEmpty() ? null : choices.get(0);
++    }
++
++    @Override
++    public RecipeChoice clone() {
++        try {
++            ItemStackRecipeChoice clone = (ItemStackRecipeChoice) super.clone();
++            clone.choices.addAll(this.choices);
++            return clone;
++        } catch (CloneNotSupportedException ex) {
++            throw new AssertionError(ex);
++        }
++    }
++
++    @Override
++    public boolean test(ItemStack itemStack) {
++        for (ItemStack stack : choices) {
++            if (stack.isSimilar(itemStack)) {
++                return true;
++            }
++        }
++        return false;
++    }
++}
+-- 
+2.18.0
+