Paper/Spigot-API-Patches/0171-Add-ItemStack-Recipe-API-helper-methods.patch

From 79a77f853194bb36fa722b0eb5fcafa506e72c2a Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 28 Jan 2014 19:13:57 -0500
Subject: [PATCH] Add ItemStack Recipe API helper methods

Allows using ExactChoice Recipes with easier methodss

diff --git a/src/main/java/org/bukkit/inventory/ShapedRecipe.java b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
index d742c4058..222a12baa 100644
--- a/src/main/java/org/bukkit/inventory/ShapedRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
@@ -145,6 +145,13 @@ public class ShapedRecipe implements Recipe, Keyed {
         return this;
     }
 
+    // Paper start
+    @NotNull
+    public ShapedRecipe setIngredient(char key, @NotNull ItemStack item) {
+        return setIngredient(key, new RecipeChoice.ExactChoice(item));
+    }
+    // Paper end
+
     /**
      * Get a copy of the ingredients map.
      *
diff --git a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
index 84062dd71..ddcf84e66 100644
--- a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
@@ -143,6 +143,40 @@ public class ShapelessRecipe implements Recipe, Keyed {
         return this;
     }
 
+    // Paper start
+    @NotNull
+    public ShapelessRecipe addIngredient(@NotNull ItemStack item) {
+        return addIngredient(1, item);
+    }
+
+    @NotNull
+    public ShapelessRecipe addIngredient(int count, @NotNull ItemStack item) {
+        Validate.isTrue(ingredients.size() + count <= 9, "Shapeless recipes cannot have more than 9 ingredients");
+        while (count-- > 0) {
+            ingredients.add(new RecipeChoice.ExactChoice(item));
+        }
+        return this;
+    }
+
+    @NotNull
+    public ShapelessRecipe removeIngredient(@NotNull ItemStack item) {
+        return removeIngredient(1, item);
+    }
+
+    @NotNull
+    public ShapelessRecipe removeIngredient(int count, @NotNull ItemStack item) {
+        Iterator<RecipeChoice> iterator = ingredients.iterator();
+        while (count > 0 && iterator.hasNext()) {
+            ItemStack stack = iterator.next().getItemStack();
+            if (stack.equals(item)) {
+                iterator.remove();
+                count--;
+            }
+        }
+        return this;
+    }
+    // Paper end
+
     /**
      * Removes an ingredient from the list.
      *
-- 
2.21.0