Paper/patches/server/0920-Restore-vanilla-entity-drops-behavior.patch
Spottedleaf 38b3182a90 Updated Upstream (Bukkit/CraftBukkit)
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:
befcf86d SPIGOT-7740: Fix using new map cursor types
09229095 Add EntityDamageEvent.DamageCause#CAMPFIRE

CraftBukkit Changes:
a1d2cd152 SPIGOT-7747: Mob head is not dropped when mob was blown up by a charged creeper
8078294bc SPIGOT-7746: Server Crashing when Players Getting into End Portals
8d842e250 SPIGOT-7744: Fix exception for shooting projectiles with flame enchantment
64e0ad129 SPIGOT-7744: Fix crash when shooting arrows in creative mode
819f7a10a Fix player items not dropping on death
0a0229bb5 Implement DamageCause#CAMPFIRE and minor improvement in exception for Unhandled block damage
2024-06-14 10:15:52 -07:00

246 lines
18 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 ee1ac37298232c91264e5bff52a12dfdd7480fcb..40b5d379e917771b30d888eb390f5d5698a34ffb 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -978,22 +978,20 @@ public class ServerPlayer extends net.minecraft.world.entity.player.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.has(item, EnchantmentEffectComponents.PREVENT_EQUIPMENT_DROP)) {
- 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
@@ -2531,8 +2529,8 @@ public class ServerPlayer extends net.minecraft.world.entity.player.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 e4ad97071ed0e82fc910c34e700c6c6eee99deea..3d150ed6c3f7313628ccf110c1a67aa77b142326 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2564,6 +2564,25 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
@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.inventory.CraftItemType.bukkitToMinecraft(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) {
@@ -2571,14 +2590,21 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
} 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 bfbdc0f4a707e81c6d62ebb208b97def186e6e73..4bb6788adb78b8ac5ebbb1f7bea2c623d60990a0 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -278,7 +278,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
protected float appliedScale;
// CraftBukkit start
public int expToDrop;
- 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 1b49090a466bc74d9e5f2815314955b6dfbb83dc..62271e74399a827a488159da234465ef18e15e6e 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
@@ -538,10 +538,9 @@ public class WitherBoss extends Monster implements PowerableMob, RangedAttackMob
@Override
protected void dropCustomDeathLoot(ServerLevel world, DamageSource source, boolean causedByPlayer) {
super.dropCustomDeathLoot(world, source, causedByPlayer);
- 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 5bcb9a53ebebeef4bd6ec2458df4b63002ebd804..2f398750bfee5758ad8b1367b6fc14364e4de776 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -621,7 +621,7 @@ public class ArmorStand extends LivingEntity {
ItemStack itemstack = new ItemStack(Items.ARMOR_STAND);
itemstack.set(DataComponents.CUSTOM_NAME, 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(world, damageSource); // Paper
}
@@ -635,7 +635,7 @@ 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);
}
}
@@ -643,7 +643,7 @@ 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 c9a38f6b91ac538aea4c4a6f23d18415585a931b..bec1f62559b42acee6c955baf7851aecb9179e16 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -965,18 +965,24 @@ public class CraftEventFactory {
}
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource) {
- return CraftEventFactory.callEntityDeathEvent(victim, damageSource, new ArrayList<org.bukkit.inventory.ItemStack>(0));
+ return CraftEventFactory.callEntityDeathEvent(victim, damageSource, new ArrayList<>(0)); // Paper - Restore vanilla drops behavior
}
- public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops) {
+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<Entity.DefaultDrop> drops) { // Paper - Restore vanilla drops behavior
// Paper start
return CraftEventFactory.callEntityDeathEvent(victim, damageSource, drops, com.google.common.util.concurrent.Runnables.doNothing());
}
- public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops, Runnable lootCheck) {
+
+ private static final 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, DamageSource damageSource, List<Entity.DefaultDrop> drops, Runnable lootCheck) { // Paper
// Paper end
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
CraftDamageSource bukkitDamageSource = new CraftDamageSource(damageSource);
- EntityDeathEvent event = new EntityDeathEvent(entity, bukkitDamageSource, drops, victim.getExpReward(damageSource.getEntity()));
+ EntityDeathEvent event = new EntityDeathEvent(entity, bukkitDamageSource, new io.papermc.paper.util.TransformingRandomAccessList<>(drops, Entity.DefaultDrop::stack, FROM_FUNCTION), victim.getExpReward(damageSource.getEntity())); // Paper - Restore vanilla drops behavior
populateFields(victim, event); // Paper - make cancellable
CraftWorld world = (CraftWorld) entity.getWorld();
Bukkit.getServer().getPluginManager().callEvent(event);
@@ -990,20 +996,24 @@ 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, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops, net.kyori.adventure.text.Component deathMessage, boolean keepInventory) { // Paper - Adventure
+ public static PlayerDeathEvent callPlayerDeathEvent(ServerPlayer victim, DamageSource damageSource, List<Entity.DefaultDrop> drops, net.kyori.adventure.text.Component deathMessage, boolean keepInventory) { // Paper - Adventure & Restore vanilla drops behavior
CraftPlayer entity = victim.getBukkitEntity();
CraftDamageSource bukkitDamageSource = new CraftDamageSource(damageSource);
- PlayerDeathEvent event = new PlayerDeathEvent(entity, bukkitDamageSource, drops, victim.getExpReward(damageSource.getEntity()), 0, deathMessage);
+ PlayerDeathEvent event = new PlayerDeathEvent(entity, bukkitDamageSource, new io.papermc.paper.util.TransformingRandomAccessList<>(drops, Entity.DefaultDrop::stack, FROM_FUNCTION), victim.getExpReward(damageSource.getEntity()), 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
@@ -1022,10 +1032,14 @@ 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;