From 1dfbde3564fde9115630f366cd4e001b9e2450aa Mon Sep 17 00:00:00 2001 From: Aikar Date: Wed, 20 Dec 2017 17:36:49 -0500 Subject: [PATCH] Ability to apply mending to XP API This allows plugins that give players the ability to apply the experience points to the Item Mending formula, which will repair an item instead of giving the player experience points. Both an API To standalone mend, and apply mending logic to .giveExp has been added. diff --git a/src/main/java/net/minecraft/server/EnchantmentManager.java b/src/main/java/net/minecraft/server/EnchantmentManager.java index 6f64b8db3a..b6a40e22a8 100644 --- a/src/main/java/net/minecraft/server/EnchantmentManager.java +++ b/src/main/java/net/minecraft/server/EnchantmentManager.java @@ -241,6 +241,11 @@ public class EnchantmentManager { return getEnchantmentLevel(Enchantments.CHANNELING, itemstack) > 0; } + // Paper - OBFHELPER + public static @Nullable ItemStack getRandomEquippedItemWithEnchant(Enchantment enchantment, EntityLiving entityliving) { + Entry entry = b(enchantment, entityliving); + return entry != null ? entry.getValue() : null; + } @Nullable public static Entry b(Enchantment enchantment, EntityLiving entityliving) { Map map = enchantment.a(entityliving); diff --git a/src/main/java/net/minecraft/server/EntityExperienceOrb.java b/src/main/java/net/minecraft/server/EntityExperienceOrb.java index 704a48c8ea..64d71a9a2a 100644 --- a/src/main/java/net/minecraft/server/EntityExperienceOrb.java +++ b/src/main/java/net/minecraft/server/EntityExperienceOrb.java @@ -251,10 +251,12 @@ public class EntityExperienceOrb extends Entity { } } + public int durToXp(int i) { return b(i); } // Paper OBFHELPER private int b(int i) { return i / 2; } + public int xpToDur(int i) { return c(i); } // Paper OBFHELPER private int c(int i) { return i * 2; } diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index ec52987820..92d45ab7df 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -1054,8 +1054,39 @@ public class CraftPlayer extends CraftHumanEntity implements Player { return GameMode.getByValue(getHandle().playerInteractManager.getGameMode().getId()); } + // Paper start @Override - public void giveExp(int exp) { + public int applyMending(int amount) { + EntityPlayer handle = getHandle(); + // Logic copied from EntityExperienceOrb and remapped to unobfuscated methods/properties + net.minecraft.server.ItemStack itemstack = net.minecraft.server.EnchantmentManager.getRandomEquippedItemWithEnchant(net.minecraft.server.Enchantments.MENDING, handle); + if (!itemstack.isEmpty() && itemstack.getItem().usesDurability()) { + + net.minecraft.server.EntityExperienceOrb orb = net.minecraft.server.EntityTypes.EXPERIENCE_ORB.create(handle.world); + orb.value = amount; + orb.spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.CUSTOM; + orb.locX = handle.locX; + orb.locY = handle.locY; + orb.locZ = handle.locZ; + + int i = Math.min(orb.xpToDur(amount), itemstack.getDamage()); + org.bukkit.event.player.PlayerItemMendEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemMendEvent(handle, orb, itemstack, i); + i = event.getRepairAmount(); + orb.dead = true; + if (!event.isCancelled()) { + amount -= orb.durToXp(i); + itemstack.setDamage(itemstack.getDamage() - i); + } + } + return amount; + } + + @Override + public void giveExp(int exp, boolean applyMending) { + if (applyMending) { + exp = this.applyMending(exp); + } + // Paper end getHandle().giveExp(exp); } -- 2.21.0