Paper/nms-patches/ContainerEnchantTable.patch

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--- a/net/minecraft/server/ContainerEnchantTable.java
+++ b/net/minecraft/server/ContainerEnchantTable.java
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@@ -3,6 +3,21 @@
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import java.util.List;
import java.util.Random;
+// CraftBukkit start
+import java.util.Collections;
+import java.util.Map;
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+import org.bukkit.Location;
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+import org.bukkit.NamespacedKey;
+import org.bukkit.craftbukkit.inventory.CraftInventoryEnchanting;
+import org.bukkit.craftbukkit.inventory.CraftInventoryView;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
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+import org.bukkit.craftbukkit.util.CraftNamespacedKey;
+import org.bukkit.enchantments.EnchantmentOffer;
+import org.bukkit.event.enchantment.EnchantItemEvent;
+import org.bukkit.event.enchantment.PrepareItemEnchantEvent;
+import org.bukkit.entity.Player;
+// CraftBukkit end
+
public class ContainerEnchantTable extends Container {
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public IInventory enchantSlots = new InventorySubcontainer(new ChatComponentText("Enchant"), 2) {
@@ -14,6 +29,13 @@
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super.update();
ContainerEnchantTable.this.a((IInventory) this);
}
+
+ // CraftBukkit start
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+ @Override
+ public Location getLocation() {
+ return new org.bukkit.Location(world.getWorld(), position.getX(), position.getY(), position.getZ());
+ }
+ // CraftBukkit end
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};
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public World world;
private final BlockPosition position;
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@@ -22,6 +44,10 @@
public int[] costs = new int[3];
public int[] h = new int[] { -1, -1, -1};
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public int[] i = new int[] { -1, -1, -1};
+ // CraftBukkit start
+ private CraftInventoryView bukkitEntity = null;
+ private Player player;
+ // CraftBukkit end
public ContainerEnchantTable(PlayerInventory playerinventory, World world, BlockPosition blockposition) {
this.world = world;
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@@ -54,6 +80,9 @@
this.a(new Slot(playerinventory, i, 8 + i * 18, 142));
}
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+ // CraftBukkit start
+ player = (Player) playerinventory.player.getBukkitEntity();
+ // CraftBukkit end
}
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protected void c(ICrafting icrafting) {
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@@ -90,7 +119,7 @@
ItemStack itemstack = iinventory.getItem(0);
int i;
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- if (!itemstack.isEmpty() && itemstack.canEnchant()) {
+ if (!itemstack.isEmpty()) { // CraftBukkit - relax condition
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if (!this.world.isClientSide) {
i = 0;
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@@ -146,12 +175,47 @@
if (list != null && !list.isEmpty()) {
WeightedRandomEnchant weightedrandomenchant = (WeightedRandomEnchant) list.get(this.l.nextInt(list.size()));
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- this.h[j] = IRegistry.ENCHANTMENT.a((Object) weightedrandomenchant.enchantment);
+ this.h[j] = IRegistry.ENCHANTMENT.a(weightedrandomenchant.enchantment); // CraftBukkit - decompile error
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this.i[j] = weightedrandomenchant.level;
}
}
}
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+ // CraftBukkit start
+ CraftItemStack item = CraftItemStack.asCraftMirror(itemstack);
+ org.bukkit.enchantments.EnchantmentOffer[] offers = new EnchantmentOffer[3];
+ for (j = 0; j < 3; ++j) {
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+ org.bukkit.enchantments.Enchantment enchantment = (this.h[j] >= 0) ? org.bukkit.enchantments.Enchantment.getByKey(CraftNamespacedKey.fromMinecraft(IRegistry.ENCHANTMENT.getKey(IRegistry.ENCHANTMENT.fromId(this.h[j])))) : null;
+ offers[j] = (enchantment != null) ? new EnchantmentOffer(enchantment, this.i[j], this.costs[j]) : null;
+ }
+
+ PrepareItemEnchantEvent event = new PrepareItemEnchantEvent(player, this.getBukkitView(), this.world.getWorld().getBlockAt(position.getX(), position.getY(), position.getZ()), item, offers, i);
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+ event.setCancelled(!itemstack.canEnchant());
+ this.world.getServer().getPluginManager().callEvent(event);
+
+ if (event.isCancelled()) {
+ for (j = 0; j < 3; ++j) {
+ this.costs[j] = 0;
+ this.h[j] = -1;
+ this.i[j] = -1;
+ }
+ return;
+ }
+
+ for (j = 0; j < 3; j++) {
+ EnchantmentOffer offer = event.getOffers()[j];
+ if (offer != null) {
+ this.costs[j] = offer.getCost();
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+ this.h[j] = IRegistry.ENCHANTMENT.a(IRegistry.ENCHANTMENT.get(CraftNamespacedKey.toMinecraft(offer.getEnchantment().getKey())));
+ this.i[j] = offer.getEnchantmentLevel();
+ } else {
+ this.costs[j] = 0;
+ this.h[j] = -1;
+ this.i[j] = -1;
+ }
+ }
+ // CraftBukkit end
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+
this.b();
}
} else {
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@@ -176,25 +240,53 @@
if (!this.world.isClientSide) {
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List<WeightedRandomEnchant> list = this.a(itemstack, i, this.costs[i]);
- if (!list.isEmpty()) {
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- entityhuman.enchantDone(itemstack, j);
+ // CraftBukkit start
+ if (true || !list.isEmpty()) {
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+ // entityhuman.enchantDone(itemstack, j); // Moved down
boolean flag = itemstack.getItem() == Items.BOOK;
+ Map<org.bukkit.enchantments.Enchantment, Integer> enchants = new java.util.HashMap<org.bukkit.enchantments.Enchantment, Integer>();
+ for (Object obj : list) {
+ WeightedRandomEnchant instance = (WeightedRandomEnchant) obj;
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+ enchants.put(org.bukkit.enchantments.Enchantment.getByKey(CraftNamespacedKey.fromMinecraft(IRegistry.ENCHANTMENT.getKey(instance.enchantment))), instance.level);
+ }
+ CraftItemStack item = CraftItemStack.asCraftMirror(itemstack);
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+
+ EnchantItemEvent event = new EnchantItemEvent((Player) entityhuman.getBukkitEntity(), this.getBukkitView(), this.world.getWorld().getBlockAt(position.getX(), position.getY(), position.getZ()), item, this.costs[i], enchants, i);
+ this.world.getServer().getPluginManager().callEvent(event);
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+
+ int level = event.getExpLevelCost();
+ if (event.isCancelled() || (level > entityhuman.expLevel && !entityhuman.abilities.canInstantlyBuild) || event.getEnchantsToAdd().isEmpty()) {
+ return false;
+ }
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if (flag) {
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itemstack = new ItemStack(Items.ENCHANTED_BOOK);
this.enchantSlots.setItem(0, itemstack);
}
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- for (int k = 0; k < list.size(); ++k) {
- WeightedRandomEnchant weightedrandomenchant = (WeightedRandomEnchant) list.get(k);
+ for (Map.Entry<org.bukkit.enchantments.Enchantment, Integer> entry : event.getEnchantsToAdd().entrySet()) {
+ try {
+ if (flag) {
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+ NamespacedKey enchantId = entry.getKey().getKey();
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+ Enchantment nms = IRegistry.ENCHANTMENT.get(CraftNamespacedKey.toMinecraft(enchantId));
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+ if (nms == null) {
+ continue;
+ }
- if (flag) {
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- ItemEnchantedBook.a(itemstack, weightedrandomenchant);
- } else {
- itemstack.addEnchantment(weightedrandomenchant.enchantment, weightedrandomenchant.level);
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+ WeightedRandomEnchant weightedrandomenchant = new WeightedRandomEnchant(nms, entry.getValue());
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+ ItemEnchantedBook.a(itemstack, weightedrandomenchant);
+ } else {
+ item.addUnsafeEnchantment(entry.getKey(), entry.getValue());
+ }
+ } catch (IllegalArgumentException e) {
+ /* Just swallow invalid enchantments */
}
}
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+ entityhuman.enchantDone(itemstack, j);
+ // CraftBukkit end
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+
+ // CraftBukkit - TODO: let plugins change this
if (!entityhuman.abilities.canInstantlyBuild) {
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itemstack1.subtract(j);
if (itemstack1.isEmpty()) {
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@@ -233,12 +325,18 @@
public void b(EntityHuman entityhuman) {
super.b(entityhuman);
+ // CraftBukkit Start - If an enchantable was opened from a null location, set the world to the player's world, preventing a crash
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+ if (this.world == null) {
+ this.world = entityhuman.getWorld();
+ }
+ // CraftBukkit end
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if (!this.world.isClientSide) {
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this.a(entityhuman, entityhuman.world, this.enchantSlots);
}
}
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public boolean canUse(EntityHuman entityhuman) {
+ if (!this.checkReachable) return true; // CraftBukkit
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return this.world.getType(this.position).getBlock() != Blocks.ENCHANTING_TABLE ? false : entityhuman.d((double) this.position.getX() + 0.5D, (double) this.position.getY() + 0.5D, (double) this.position.getZ() + 0.5D) <= 64.0D;
}
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@@ -291,4 +389,17 @@
return itemstack;
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}
+
+ // CraftBukkit start
+ @Override
+ public CraftInventoryView getBukkitView() {
+ if (bukkitEntity != null) {
+ return bukkitEntity;
+ }
+
+ CraftInventoryEnchanting inventory = new CraftInventoryEnchanting(this.enchantSlots);
+ bukkitEntity = new CraftInventoryView(this.player, inventory, this);
+ return bukkitEntity;
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+ }
+ // CraftBukkit end
}