Expose anvil cost in the API

patches/api/0278-More-Enchantment-API.patch

@@ -4,6 +4,7 @@ Date: Thu, 6 May 2021 19:58:03 -0700
 Subject: [PATCH] More Enchantment API
 
 Co-authored-by: Luis <luisc99@icloud.com>
+Co-authored-by: Janet Blackquill <uhhadd@gmail.com>
 
 diff --git a/src/main/java/io/papermc/paper/enchantments/EnchantmentRarity.java b/src/main/java/io/papermc/paper/enchantments/EnchantmentRarity.java
 new file mode 100644
@@ -37,7 +38,7 @@ index 0000000000000000000000000000000000000000..50c49739cc25679c9d241466e3069c9c
 +    }
 +}
 diff --git a/src/main/java/org/bukkit/enchantments/Enchantment.java b/src/main/java/org/bukkit/enchantments/Enchantment.java
-index 4e41980dfbb256356231bc9565f6a90ea66aab76..de616cecaeb45018d96685c916532188e369bdd4 100644
+index 4e41980dfbb256356231bc9565f6a90ea66aab76..73e367fdf405b926599f4a7d34d61c25bb6c6e81 100644
 --- a/src/main/java/org/bukkit/enchantments/Enchantment.java
 +++ b/src/main/java/org/bukkit/enchantments/Enchantment.java
 @@ -292,11 +292,7 @@ public abstract class Enchantment implements Keyed, Translatable, net.kyori.adve
@@ -52,7 +53,7 @@ index 4e41980dfbb256356231bc9565f6a90ea66aab76..de616cecaeb45018d96685c916532188
      public abstract boolean isCursed();
 
      /**
-@@ -330,6 +326,87 @@ public abstract class Enchantment implements Keyed, Translatable, net.kyori.adve
+@@ -330,6 +326,97 @@ public abstract class Enchantment implements Keyed, Translatable, net.kyori.adve
       * @return the name of the enchantment with {@code level} applied
       */
      public abstract net.kyori.adventure.text.@NotNull Component displayName(int level);
@@ -97,6 +98,16 @@ index 4e41980dfbb256356231bc9565f6a90ea66aab76..de616cecaeb45018d96685c916532188
 +    public abstract int getMaxModifiedCost(int level);
 +
 +    /**
++     * Gets cost of applying this enchantment using an anvil.
++     * <p>
++     * Note that this is halved when using an enchantment book, and is multiplied by the level of the enchantment.
++     * See <a href="https://minecraft.wiki/w/Anvil_mechanics">https://minecraft.wiki/w/Anvil_mechanics</a> for more information.
++     * </p>
++     * @return The anvil cost of this enchantment
++     */
++    public abstract int getAnvilCost();
++
++    /**
 +     * Gets the rarity of this enchantment.
 +     *
 +     * @return the rarity

patches/server/0545-More-Enchantment-API.patch

@@ -7,9 +7,10 @@ Subject: [PATCH] More Enchantment API
 public net.minecraft.world.item.enchantment.Enchantment definition
 
 Co-authored-by: Luis <luisc99@icloud.com>
+Co-authored-by: Janet Blackquill <uhhadd@gmail.com>
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/enchantments/CraftEnchantment.java b/src/main/java/org/bukkit/craftbukkit/enchantments/CraftEnchantment.java
-index faf0f726453aa957d17b75dfd8de5b40d984e69c..3157cac1905728ba0f51af412a5bba57578352b3 100644
+index faf0f726453aa957d17b75dfd8de5b40d984e69c..067aa761abd023991c884278a5cf0a63684026aa 100644
 --- a/src/main/java/org/bukkit/craftbukkit/enchantments/CraftEnchantment.java
 +++ b/src/main/java/org/bukkit/craftbukkit/enchantments/CraftEnchantment.java
 @@ -94,7 +94,7 @@ public class CraftEnchantment extends Enchantment implements Handleable<net.mine
@@ -21,7 +22,7 @@ index faf0f726453aa957d17b75dfd8de5b40d984e69c..3157cac1905728ba0f51af412a5bba57
      }
 
      @Override
-@@ -166,13 +166,70 @@ public class CraftEnchantment extends Enchantment implements Handleable<net.mine
+@@ -166,13 +166,75 @@ public class CraftEnchantment extends Enchantment implements Handleable<net.mine
      // Paper start
      @Override
      public net.kyori.adventure.text.Component displayName(int level) {
@@ -55,6 +56,11 @@ index faf0f726453aa957d17b75dfd8de5b40d984e69c..3157cac1905728ba0f51af412a5bba57
 +    }
 +
 +    @Override
++    public int getAnvilCost() {
++        return this.handle.getAnvilCost();
++    }
++
++    @Override
 +    public io.papermc.paper.enchantments.EnchantmentRarity getRarity() {
 +        throw new UnsupportedOperationException("Enchantments don't have a rarity anymore in 1.20.5+.");
 +    }