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PaperMC/nms-patches/ItemStack.patch

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--- a/net/minecraft/server/ItemStack.java
+++ b/net/minecraft/server/ItemStack.java
@@ -16,6 +16,24 @@
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
+// CraftBukkit start
+import com.mojang.datafixers.Dynamic;
+import java.util.List;
+import java.util.Map;
+
+import org.bukkit.Location;
+import org.bukkit.TreeType;
+import org.bukkit.block.BlockState;
+import org.bukkit.craftbukkit.block.CraftBlock;
+import org.bukkit.craftbukkit.block.CraftBlockState;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
+import org.bukkit.entity.Player;
+import org.bukkit.event.block.BlockFertilizeEvent;
+import org.bukkit.event.player.PlayerItemDamageEvent;
+import org.bukkit.event.world.StructureGrowEvent;
+// CraftBukkit end
+
public final class ItemStack {
private static final Logger LOGGER = LogManager.getLogger();
@@ -54,23 +72,42 @@
this.checkEmpty();
}
+ // Called to run this stack through the data converter to handle older storage methods and serialized items
+ public void convertStack(int version) {
+ if (0 < version && version < CraftMagicNumbers.INSTANCE.getDataVersion()) {
+ NBTTagCompound savedStack = new NBTTagCompound();
+ this.save(savedStack);
+ savedStack = (NBTTagCompound) MinecraftServer.getServer().dataConverterManager.update(DataConverterTypes.ITEM_STACK, new Dynamic(DynamicOpsNBT.a, savedStack), version, CraftMagicNumbers.INSTANCE.getDataVersion()).getValue();
+ this.load(savedStack);
+ }
+ }
+
private void checkEmpty() {
+ if (this.h && this == ItemStack.a) throw new AssertionError("TRAP"); // CraftBukkit
this.h = false;
this.h = this.isEmpty();
}
- private ItemStack(NBTTagCompound nbttagcompound) {
+ // CraftBukkit - break into own method
+ private void load(NBTTagCompound nbttagcompound) {
this.item = (Item) IRegistry.ITEM.get(new MinecraftKey(nbttagcompound.getString("id")));
this.count = nbttagcompound.getByte("Count");
if (nbttagcompound.hasKeyOfType("tag", 10)) {
- this.tag = nbttagcompound.getCompound("tag");
- this.getItem().a(nbttagcompound);
+ // CraftBukkit start - make defensive copy as this data may be coming from the save thread
+ this.tag = (NBTTagCompound) nbttagcompound.getCompound("tag").clone();
+ this.getItem().a(this.tag);
+ // CraftBukkit end
}
if (this.getItem().usesDurability()) {
this.setDamage(this.getDamage());
}
+ }
+
+ private ItemStack(NBTTagCompound nbttagcompound) {
+ this.load(nbttagcompound);
+ // CraftBukkit end
this.checkEmpty();
}
@@ -100,7 +137,7 @@
return this.h ? Items.AIR : this.item;
}
- public EnumInteractionResult placeItem(ItemActionContext itemactioncontext) {
+ public EnumInteractionResult placeItem(ItemActionContext itemactioncontext, EnumHand enumhand) { // CraftBukkit - add hand
EntityHuman entityhuman = itemactioncontext.getEntity();
BlockPosition blockposition = itemactioncontext.getClickPosition();
ShapeDetectorBlock shapedetectorblock = new ShapeDetectorBlock(itemactioncontext.getWorld(), blockposition, false);
@@ -108,12 +145,153 @@
if (entityhuman != null && !entityhuman.abilities.mayBuild && !this.b(itemactioncontext.getWorld().t(), shapedetectorblock)) {
return EnumInteractionResult.PASS;
} else {
+ // CraftBukkit start - handle all block place event logic here
+ NBTTagCompound oldData = this.getTagClone();
+ int oldCount = this.getCount();
+ World world = itemactioncontext.getWorld();
+
+ if (!(this.getItem() instanceof ItemBucket)) { // if not bucket
+ world.captureBlockStates = true;
+ // special case bonemeal
+ if (this.getItem() == Items.BONE_MEAL) {
+ world.captureTreeGeneration = true;
+ }
+ }
Item item = this.getItem();
EnumInteractionResult enuminteractionresult = item.a(itemactioncontext);
+ NBTTagCompound newData = this.getTagClone();
+ int newCount = this.getCount();
+ this.setCount(oldCount);
+ this.setTagClone(oldData);
+ world.captureBlockStates = false;
+ if (enuminteractionresult == EnumInteractionResult.SUCCESS && world.captureTreeGeneration && world.capturedBlockStates.size() > 0) {
+ world.captureTreeGeneration = false;
+ Location location = new Location(world.getWorld(), blockposition.getX(), blockposition.getY(), blockposition.getZ());
+ TreeType treeType = BlockSapling.treeType;
+ BlockSapling.treeType = null;
+ List<BlockState> blocks = new java.util.ArrayList<>(world.capturedBlockStates.values());
+ world.capturedBlockStates.clear();
+ StructureGrowEvent structureEvent = null;
+ if (treeType != null) {
+ boolean isBonemeal = getItem() == Items.BONE_MEAL;
+ structureEvent = new StructureGrowEvent(location, treeType, isBonemeal, (Player) entityhuman.getBukkitEntity(), blocks);
+ org.bukkit.Bukkit.getPluginManager().callEvent(structureEvent);
+ }
+
+ BlockFertilizeEvent fertilizeEvent = new BlockFertilizeEvent(CraftBlock.at(world, blockposition), (Player) entityhuman.getBukkitEntity(), blocks);
+ fertilizeEvent.setCancelled(structureEvent != null && structureEvent.isCancelled());
+ org.bukkit.Bukkit.getPluginManager().callEvent(fertilizeEvent);
+
+ if (!fertilizeEvent.isCancelled()) {
+ // Change the stack to its new contents if it hasn't been tampered with.
+ if (this.getCount() == oldCount && Objects.equals(this.tag, oldData)) {
+ this.setTag(newData);
+ this.setCount(newCount);
+ }
+ for (BlockState blockstate : blocks) {
+ blockstate.update(true);
+ }
+ }
+
+ return enuminteractionresult;
+ }
+ world.captureTreeGeneration = false;
if (entityhuman != null && enuminteractionresult == EnumInteractionResult.SUCCESS) {
- entityhuman.b(StatisticList.ITEM_USED.b(item));
+ org.bukkit.event.block.BlockPlaceEvent placeEvent = null;
+ List<BlockState> blocks = new java.util.ArrayList<>(world.capturedBlockStates.values());
+ world.capturedBlockStates.clear();
+ if (blocks.size() > 1) {
+ placeEvent = org.bukkit.craftbukkit.event.CraftEventFactory.callBlockMultiPlaceEvent(world, entityhuman, enumhand, blocks, blockposition.getX(), blockposition.getY(), blockposition.getZ());
+ } else if (blocks.size() == 1) {
+ placeEvent = org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPlaceEvent(world, entityhuman, enumhand, blocks.get(0), blockposition.getX(), blockposition.getY(), blockposition.getZ());
+ }
+
+ if (placeEvent != null && (placeEvent.isCancelled() || !placeEvent.canBuild())) {
+ enuminteractionresult = EnumInteractionResult.FAIL; // cancel placement
+ // PAIL: Remove this when MC-99075 fixed
+ placeEvent.getPlayer().updateInventory();
+ // revert back all captured blocks
+ for (BlockState blockstate : blocks) {
+ blockstate.update(true, false);
+ }
+
+ // Brute force all possible updates
+ BlockPosition placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition();
+ for (EnumDirection dir : EnumDirection.values()) {
+ ((EntityPlayer) entityhuman).playerConnection.sendPacket(new PacketPlayOutBlockChange(world, placedPos.shift(dir)));
+ }
+ } else {
+ // Change the stack to its new contents if it hasn't been tampered with.
+ if (this.getCount() == oldCount && Objects.equals(this.tag, oldData)) {
+ this.setTag(newData);
+ this.setCount(newCount);
+ }
+
+ for (Map.Entry<BlockPosition, TileEntity> e : world.capturedTileEntities.entrySet()) {
+ world.setTileEntity(e.getKey(), e.getValue());
+ }
+
+ for (BlockState blockstate : blocks) {
+ int updateFlag = ((CraftBlockState) blockstate).getFlag();
+ IBlockData oldBlock = ((CraftBlockState) blockstate).getHandle();
+ BlockPosition newblockposition = ((CraftBlockState) blockstate).getPosition();
+ IBlockData block = world.getType(newblockposition);
+
+ if (!(block.getBlock() instanceof BlockTileEntity)) { // Containers get placed automatically
+ block.getBlock().onPlace(block, world, newblockposition, oldBlock, true);
+ }
+
+ world.notifyAndUpdatePhysics(newblockposition, null, oldBlock, block, world.getType(newblockposition), updateFlag); // send null chunk as chunk.k() returns false by this point
+ }
+
+ // Special case juke boxes as they update their tile entity. Copied from ItemRecord.
+ // PAIL: checkme on updates.
+ if (this.item instanceof ItemRecord) {
+ ((BlockJukeBox) Blocks.JUKEBOX).a(world, blockposition, world.getType(blockposition), this);
+ world.a((EntityHuman) null, 1010, blockposition, Item.getId(this.item));
+ this.subtract(1);
+ entityhuman.a(StatisticList.PLAY_RECORD);
+ }
+
+ if (this.item == Items.WITHER_SKELETON_SKULL) { // Special case skulls to allow wither spawns to be cancelled
+ BlockPosition bp = blockposition;
+ if (!world.getType(blockposition).getMaterial().isReplaceable()) {
+ if (!world.getType(blockposition).getMaterial().isBuildable()) {
+ bp = null;
+ } else {
+ bp = bp.shift(itemactioncontext.getClickedFace());
+ }
+ }
+ if (bp != null) {
+ TileEntity te = world.getTileEntity(bp);
+ if (te instanceof TileEntitySkull) {
+ BlockWitherSkull.a(world, bp, (TileEntitySkull) te);
+ }
+ }
+ }
+
+ // SPIGOT-4678
+ if (this.item instanceof ItemSign && ItemSign.openSign != null) {
+ try {
+ entityhuman.openSign((TileEntitySign) world.getTileEntity(ItemSign.openSign));
+ } finally {
+ ItemSign.openSign = null;
+ }
+ }
+
+ // SPIGOT-1288 - play sound stripped from ItemBlock
+ if (this.item instanceof ItemBlock) {
+ SoundEffectType soundeffecttype = ((ItemBlock) this.item).getBlock().stepSound;
+ world.playSound(entityhuman, blockposition, soundeffecttype.e(), SoundCategory.BLOCKS, (soundeffecttype.a() + 1.0F) / 2.0F, soundeffecttype.b() * 0.8F);
+ }
+
+ entityhuman.b(StatisticList.ITEM_USED.b(item));
+ }
}
+ world.capturedTileEntities.clear();
+ world.capturedBlockStates.clear();
+ // CraftBukkit end
return enuminteractionresult;
}
@@ -194,6 +372,21 @@
}
i -= k;
+ // CraftBukkit start
+ if (entityplayer != null) {
+ PlayerItemDamageEvent event = new PlayerItemDamageEvent(entityplayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), i);
+ event.getPlayer().getServer().getPluginManager().callEvent(event);
+
+ if (i != event.getDamage() || event.isCancelled()) {
+ event.getPlayer().updateInventory();
+ }
+ if (event.isCancelled()) {
+ return false;
+ }
+
+ i = event.getDamage();
+ }
+ // CraftBukkit end
if (i <= 0) {
return false;
}
@@ -215,6 +408,11 @@
if (this.isDamaged(i, t0.getRandom(), t0 instanceof EntityPlayer ? (EntityPlayer) t0 : null)) {
consumer.accept(t0);
Item item = this.getItem();
+ // CraftBukkit start - Check for item breaking
+ if (this.count == 1 && t0 instanceof EntityHuman) {
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemBreakEvent((EntityHuman) t0, this);
+ }
+ // CraftBukkit end
this.subtract(1);
if (t0 instanceof EntityHuman) {
@@ -346,6 +544,17 @@
return this.tag;
}
+ // CraftBukkit start
+ @Nullable
+ private NBTTagCompound getTagClone() {
+ return this.tag == null ? null : this.tag.clone();
+ }
+
+ private void setTagClone(@Nullable NBTTagCompound nbtttagcompound) {
+ this.setTag(nbtttagcompound == null ? null : nbtttagcompound.clone());
+ }
+ // CraftBukkit end
+
public NBTTagCompound getOrCreateTag() {
if (this.tag == null) {
this.setTag(new NBTTagCompound());
@@ -498,6 +707,12 @@
}
public void setRepairCost(int i) {
+ // CraftBukkit start - remove RepairCost tag when 0 (SPIGOT-3945)
+ if (i == 0) {
+ this.removeTag("RepairCost");
+ return;
+ }
+ // CraftBukkit end
this.getOrCreateTag().setInt("RepairCost", i);
}
@@ -520,7 +735,7 @@
object = this.getItem().a(enumitemslot);
}
- ((Multimap) object).values().forEach((attributemodifier1) -> {
+ ((Multimap<String, AttributeModifier>) object).values().forEach((attributemodifier1) -> { // CraftBukkit - decompile error
attributemodifier1.a(false);
});
return (Multimap) object;
@@ -543,6 +758,13 @@
nbttaglist.add(nbttagcompound);
}
+ // CraftBukkit start
+ @Deprecated
+ public void setItem(Item item) {
+ this.item = item;
+ }
+ // CraftBukkit end
+
public IChatBaseComponent B() {
IChatBaseComponent ichatbasecomponent = (new ChatComponentText("")).addSibling(this.getName());
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