From 1d583f46df6cfbc3888496aeb092515d183a3ffe 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 98300d0a2..f714dc326 100644 --- a/src/main/java/net/minecraft/server/EnchantmentManager.java +++ b/src/main/java/net/minecraft/server/EnchantmentManager.java @@ -226,6 +226,7 @@ public class EnchantmentManager { return getEnchantmentLevel(Enchantments.D, itemstack) > 0; } + public static ItemStack getRandomEquippedItemWithEnchant(Enchantment enchantment, EntityLiving entityliving) { return b(enchantment, entityliving); } // Paper - OBFHELPER public static ItemStack b(Enchantment enchantment, EntityLiving entityliving) { List list = enchantment.a(entityliving); diff --git a/src/main/java/net/minecraft/server/Enchantments.java b/src/main/java/net/minecraft/server/Enchantments.java index 35e87eb1c..74a6a4f60 100644 --- a/src/main/java/net/minecraft/server/Enchantments.java +++ b/src/main/java/net/minecraft/server/Enchantments.java @@ -32,7 +32,7 @@ public class Enchantments { public static final Enchantment ARROW_INFINITE = a("infinity"); public static final Enchantment LUCK = a("luck_of_the_sea"); public static final Enchantment LURE = a("lure"); - public static final Enchantment C = a("mending"); + public static final Enchantment C = a("mending"); public static final Enchantment MENDING = C; // Paper - OBFHELPER public static final Enchantment D = a("vanishing_curse"); @Nullable diff --git a/src/main/java/net/minecraft/server/EntityExperienceOrb.java b/src/main/java/net/minecraft/server/EntityExperienceOrb.java index ff5cc74ba..1c59fd966 100644 --- a/src/main/java/net/minecraft/server/EntityExperienceOrb.java +++ b/src/main/java/net/minecraft/server/EntityExperienceOrb.java @@ -234,10 +234,12 @@ public class EntityExperienceOrb extends Entity { } } + public int durToXp(int i) { return c(i); } // Paper OBFHELPER private int c(int i) { return i / 2; } + public int xpToDur(int i) { return d(i); } // Paper OBFHELPER private int d(int i) { return i * 2; } diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java index 52cb34abd..d1ff97a9e 100644 --- a/src/main/java/net/minecraft/server/ItemStack.java +++ b/src/main/java/net/minecraft/server/ItemStack.java @@ -28,7 +28,7 @@ public final class ItemStack { private Item item; private NBTTagCompound tag; private boolean g; - private int damage; + private int damage; public void setDamage(int i) { this.damage = i; } // Paper - OBFHELPER private EntityItemFrame i; private Block j; private boolean k; @@ -349,10 +349,12 @@ public final class ItemStack { return this.getItem().k(); } + public boolean hasDamage() { return h(); } // Paper OBFHELPER public boolean h() { return this.f() && this.damage > 0; } + public int getDamage() { return i(); } // Paper OBFHELPER public int i() { return this.damage; } diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index 428b208ae..21631c588 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -923,8 +923,39 @@ 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 + ItemStack itemstack = EnchantmentManager.getRandomEquippedItemWithEnchant(Enchantments.MENDING, handle); + if (!itemstack.isEmpty() && itemstack.hasDamage()) { + + EntityExperienceOrb orb = new EntityExperienceOrb(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); } -- 2.16.2