Paper/patches/server/0976-Restore-vanilla-entity-drops-behavior.patch
Nassim Jahnke fe53b0e76f
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
1d522878 PR-966: Introduce getRespawnLocation as a replacement for getBedSpawnLocation
cc01b745 PR-965: Add DragonBattle#setPreviouslyKilled
28e3702f SPIGOT-6921, PR-957: Add methods to remove all enchantments on an ItemStack
8872404e PR-961: Add BlockData#copyTo
4054cc7b PR-956: Add method to get an offline player's location

CraftBukkit Changes:
292ec79e0 SPIGOT-7568: Call EntityChangeBlockEvent for DecoratedPot
b44bf5aa8 SPIGOT-7575: SuspiciousStewMeta creates invalid PotionEffect data
161784713 PR-1340: Centralize the conversion from and to Minecraft / Bukkit registry items even more and add a test case for them
b93c5a30d PR-1338: Introduce getRespawnLocation as a replacement for getBedSpawnLocation
fb973486c SPIGOT-7570: PrepareItemCraftEvent#isRepair() always returns false
c9c24535e PR-1337: Add DragonBattle#setPreviouslyKilled
c8b4da803 SPIGOT-6921, PR-1330: Add methods to remove all enchantments on an ItemStack
95bc1c4f5 PR-1333: Add BlockData#copyTo
36e2f9ce1 PR-1329: Add method to get an offline player's location

Spigot Changes:
c198da22 SPIGOT-7563: Update to latest release of bungeecord-chat
2024-01-26 20:19:17 +01:00

242 lines
17 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 22 Mar 2022 09:34:41 -0700
Subject: [PATCH] Restore vanilla entity drops behavior
Instead of just tracking the itemstacks, this tracks with it, the
action to take with that itemstack to apply the correct logic
on dropping the item instead of generalizing it for all dropped
items like CB does.
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 6147ffdcb83a9d013a05facd75453d6500064fe7..ecf463139bb6567103d81ae26cfff53d843cbd26 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -891,22 +891,20 @@ public class ServerPlayer extends Player {
if (this.isRemoved()) {
return;
}
- java.util.List<org.bukkit.inventory.ItemStack> loot = new java.util.ArrayList<org.bukkit.inventory.ItemStack>(this.getInventory().getContainerSize());
+ List<DefaultDrop> loot = new java.util.ArrayList<>(this.getInventory().getContainerSize()); // Paper - Restore vanilla drops behavior
boolean keepInventory = this.level().getGameRules().getBoolean(GameRules.RULE_KEEPINVENTORY) || this.isSpectator();
if (!keepInventory) {
for (ItemStack item : this.getInventory().getContents()) {
if (!item.isEmpty() && !EnchantmentHelper.hasVanishingCurse(item)) {
- loot.add(CraftItemStack.asCraftMirror(item));
+ loot.add(new DefaultDrop(item, stack -> this.drop(stack, true, false, false))); // Paper - Restore vanilla drops behavior; drop function taken from Inventory#dropAll (don't fire drop event)
}
}
}
if (this.shouldDropLoot() && this.level().getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) { // Paper - fix player loottables running when mob loot gamerule is false
// SPIGOT-5071: manually add player loot tables (SPIGOT-5195 - ignores keepInventory rule)
this.dropFromLootTable(damageSource, this.lastHurtByPlayerTime > 0);
- for (org.bukkit.inventory.ItemStack item : this.drops) {
- loot.add(item);
- }
+ loot.addAll(this.drops); // Paper
this.drops.clear(); // SPIGOT-5188: make sure to clear
} // Paper - fix player loottables running when mob loot gamerule is false
@@ -2389,8 +2387,8 @@ public class ServerPlayer extends Player {
}
@Override
- public ItemEntity drop(ItemStack stack, boolean throwRandomly, boolean retainOwnership) {
- ItemEntity entityitem = super.drop(stack, throwRandomly, retainOwnership);
+ public ItemEntity drop(ItemStack stack, boolean throwRandomly, boolean retainOwnership, boolean callDropEvent) { // Paper - Restore vanilla drops behavior; override method with most params
+ ItemEntity entityitem = super.drop(stack, throwRandomly, retainOwnership, callDropEvent); // Paper - Restore vanilla drops behavior; override method with most params
if (entityitem == null) {
return null;
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 5fec06e12ede63496f75ccf43f52b16301d11eb0..4575e3e8a21e47d39fd3639163e804ec9dc452a6 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2476,6 +2476,25 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
@Nullable
public ItemEntity spawnAtLocation(ItemStack stack, float yOffset) {
+ // Paper start - Restore vanilla drops behavior
+ return this.spawnAtLocation(stack, yOffset, null);
+ }
+ public record DefaultDrop(Item item, org.bukkit.inventory.ItemStack stack, @Nullable java.util.function.Consumer<ItemStack> dropConsumer) {
+ public DefaultDrop(final ItemStack stack, final java.util.function.Consumer<ItemStack> dropConsumer) {
+ this(stack.getItem(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack), dropConsumer);
+ }
+
+ public void runConsumer(final org.bukkit.World fallbackWorld, final Location fallbackLoc) {
+ if (this.dropConsumer == null || org.bukkit.craftbukkit.util.CraftMagicNumbers.getItem(this.stack.getType()) != this.item) {
+ fallbackWorld.dropItem(fallbackLoc, this.stack);
+ } else {
+ this.dropConsumer.accept(org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(this.stack));
+ }
+ }
+ }
+ @Nullable
+ public ItemEntity spawnAtLocation(ItemStack stack, float yOffset, @Nullable java.util.function.Consumer<? super ItemEntity> delayedAddConsumer) {
+ // Paper end - Restore vanilla drops behavior
if (stack.isEmpty()) {
return null;
} else if (this.level().isClientSide) {
@@ -2483,14 +2502,21 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
} else {
// CraftBukkit start - Capture drops for death event
if (this instanceof net.minecraft.world.entity.LivingEntity && !((net.minecraft.world.entity.LivingEntity) this).forceDrops) {
- ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack)); // Paper - mirror so we can destroy it later
+ // Paper start - Restore vanilla drops behavior
+ ((net.minecraft.world.entity.LivingEntity) this).drops.add(new net.minecraft.world.entity.Entity.DefaultDrop(stack, itemStack -> {
+ ItemEntity itemEntity = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), itemStack); // stack is copied before consumer
+ itemEntity.setDefaultPickUpDelay();
+ this.level.addFreshEntity(itemEntity);
+ if (delayedAddConsumer != null) delayedAddConsumer.accept(itemEntity);
+ }));
+ // Paper end - Restore vanilla drops behavior
return null;
}
// CraftBukkit end
ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - copy so we can destroy original
stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
- entityitem.setDefaultPickUpDelay();
+ entityitem.setDefaultPickUpDelay(); // Paper - diff on change (in dropConsumer)
// Paper start - Call EntityDropItemEvent
return this.spawnAtLocation(entityitem);
}
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index be0fa9a9e91c87234b0cd7b63c4e7dba8629ebe5..d3d958b58934bcb513ffef474a9de58c61e654a2 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -254,7 +254,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
// CraftBukkit start
public int expToDrop;
public boolean forceDrops;
- public ArrayList<org.bukkit.inventory.ItemStack> drops = new ArrayList<org.bukkit.inventory.ItemStack>();
+ public ArrayList<DefaultDrop> drops = new ArrayList<>(); // Paper - Restore vanilla drops behavior
public final org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
public boolean collides = true;
public Set<UUID> collidableExemptions = new HashSet<>();
diff --git a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
index 45906d273e6d6ec20cf44b4d07efdac68752ee9b..ac9eaeaf7df1e84ee588f371628c0a10784d50bc 100644
--- a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
+++ b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
@@ -534,10 +534,10 @@ public class WitherBoss extends Monster implements PowerableMob, RangedAttackMob
@Override
protected void dropCustomDeathLoot(DamageSource source, int lootingMultiplier, boolean allowDrops) {
super.dropCustomDeathLoot(source, lootingMultiplier, allowDrops);
- ItemEntity entityitem = this.spawnAtLocation((ItemLike) Items.NETHER_STAR);
+ ItemEntity entityitem = this.spawnAtLocation(new net.minecraft.world.item.ItemStack(Items.NETHER_STAR), 0, ItemEntity::setExtendedLifetime); // Paper - Restore vanilla drops behavior; spawnAtLocation returns null so modify the item entity with a consumer
if (entityitem != null) {
- entityitem.setExtendedLifetime();
+ entityitem.setExtendedLifetime(); // Paper - diff on change
}
}
diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
index e3412f9dd86dddd241bea8f6dcaeed77a7e67f08..6dfcc296ff7e59ecbebc5446973fabc9eff3cb43 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -610,7 +610,7 @@ public class ArmorStand extends LivingEntity {
itemstack.setHoverName(this.getCustomName());
}
- this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
+ this.drops.add(new DefaultDrop(itemstack, stack -> Block.popResource(this.level(), this.blockPosition(), stack))); // CraftBukkit - add to drops // Paper - Restore vanilla drops behavior
return this.brokenByAnything(damageSource); // Paper
}
@@ -624,7 +624,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.handItems.size(); ++i) {
itemstack = (ItemStack) this.handItems.get(i);
if (!itemstack.isEmpty()) {
- this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
+ this.drops.add(new DefaultDrop(itemstack, stack -> Block.popResource(this.level(), this.blockPosition().above(), stack))); // CraftBukkit - add to drops // Paper - Restore vanilla drops behavior; mirror so we can destroy it later - though this call site was safe & spawn drops correctly
this.handItems.set(i, ItemStack.EMPTY);
}
}
@@ -632,7 +632,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.armorItems.size(); ++i) {
itemstack = (ItemStack) this.armorItems.get(i);
if (!itemstack.isEmpty()) {
- this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
+ this.drops.add(new DefaultDrop(itemstack, stack -> Block.popResource(this.level(), this.blockPosition().above(), stack))); // CraftBukkit - add to drops // Paper - Restore vanilla drops behavior; mirror so we can destroy it later - though this call site was safe & spawn drops correctly
this.armorItems.set(i, ItemStack.EMPTY);
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 3865e6c7af0203ff9a366571a276b8af43b97c7c..93f79e5c7244fc155364a35a75a62d42f2d1ee27 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -937,17 +937,21 @@ public class CraftEventFactory {
}
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim) {
- return CraftEventFactory.callEntityDeathEvent(victim, new ArrayList<org.bukkit.inventory.ItemStack>(0));
+ return CraftEventFactory.callEntityDeathEvent(victim, new ArrayList<>(0)); // Paper - Restore vanilla drops behavior
}
- public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops) {
+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<Entity.DefaultDrop> drops) { // Paper - Restore vanilla drops behavior
// Paper start
return CraftEventFactory.callEntityDeathEvent(victim, drops, com.google.common.util.concurrent.Runnables.doNothing());
}
- public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops, Runnable lootCheck) {
+ private static java.util.function.Function<org.bukkit.inventory.ItemStack, Entity.DefaultDrop> FROM_FUNCTION = stack -> {
+ if (stack == null) return null;
+ return new Entity.DefaultDrop(CraftItemType.bukkitToMinecraft(stack.getType()), stack, null);
+ };
+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<Entity.DefaultDrop> drops, Runnable lootCheck) { // Paper
// Paper end
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
- EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
+ EntityDeathEvent event = new EntityDeathEvent(entity, new io.papermc.paper.util.TransformingRandomAccessList<>(drops, Entity.DefaultDrop::stack, FROM_FUNCTION), victim.getExpReward()); // Paper - Restore vanilla drops behavior
populateFields(victim, event); // Paper - make cancellable
CraftWorld world = (CraftWorld) entity.getWorld();
Bukkit.getServer().getPluginManager().callEvent(event);
@@ -961,19 +965,23 @@ public class CraftEventFactory {
victim.expToDrop = event.getDroppedExp();
lootCheck.run(); // Paper - advancement triggers before destroying items
- for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
+ // Paper start - Restore vanilla drops behavior
+ for (Entity.DefaultDrop drop : drops) {
+ if (drop == null) continue;;
+ final org.bukkit.inventory.ItemStack stack = drop.stack();
+ // Paper end - Restore vanilla drops behavior
if (stack == null || stack.getType() == Material.AIR || stack.getAmount() == 0) continue;
- world.dropItem(entity.getLocation(), stack); // Paper - note: dropItem already clones due to this being bukkit -> NMS
+ drop.runConsumer(world, entity.getLocation()); // Paper - Restore vanilla drops behavior
if (stack instanceof CraftItemStack) stack.setAmount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe, but don't nuke bukkit stacks of manually added items
}
return event;
}
- public static PlayerDeathEvent callPlayerDeathEvent(ServerPlayer victim, List<org.bukkit.inventory.ItemStack> drops, net.kyori.adventure.text.Component deathMessage, boolean keepInventory) { // Paper - Adventure
+ public static PlayerDeathEvent callPlayerDeathEvent(ServerPlayer victim, List<Entity.DefaultDrop> drops, net.kyori.adventure.text.Component deathMessage, boolean keepInventory) { // Paper - Adventure & Restore vanilla drops behavior
CraftPlayer entity = victim.getBukkitEntity();
- PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage);
+ PlayerDeathEvent event = new PlayerDeathEvent(entity, new io.papermc.paper.util.TransformingRandomAccessList<>(drops, Entity.DefaultDrop::stack, FROM_FUNCTION), victim.getExpReward(), 0, deathMessage); // Paper - Restore vanilla drops behavior
event.setKeepInventory(keepInventory);
event.setKeepLevel(victim.keepLevel); // SPIGOT-2222: pre-set keepLevel
populateFields(victim, event); // Paper - make cancellable
@@ -992,10 +1000,14 @@ public class CraftEventFactory {
victim.expToDrop = event.getDroppedExp();
victim.newExp = event.getNewExp();
- for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
+ // Paper start - Restore vanilla drops behavior
+ for (Entity.DefaultDrop drop : drops) {
+ if (drop == null) continue;
+ final org.bukkit.inventory.ItemStack stack = drop.stack();
+ // Paper end - Restore vanilla drops behavior
if (stack == null || stack.getType() == Material.AIR) continue;
- world.dropItem(entity.getLocation(), stack);
+ drop.runConsumer(world, entity.getLocation()); // Paper - Restore vanilla drops behavior
}
return event;