mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-29 11:42:55 +01:00
155 lines
10 KiB
Diff
155 lines
10 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Sat, 25 Apr 2020 06:46:35 -0400
|
|
Subject: [PATCH] Fix item duplication and teleport issues
|
|
|
|
This notably fixes the newest "Donkey Dupe", but also fixes a lot
|
|
of dupe bugs in general around nether portals and entity world transfer
|
|
|
|
We also fix item duplication generically by anytime we clone an item
|
|
to drop it on the ground, destroy the source item.
|
|
|
|
This avoid an itemstack ever existing twice in the world state pre
|
|
clean up stage.
|
|
|
|
So even if something NEW comes up, it would be impossible to drop the
|
|
same item twice because the source was destroyed.
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
index 5b8e264098f1b713de15f714bae59d3efda365cf..d5f96ed753e8298085e40c6181285cd6ea838ca2 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -2630,11 +2630,12 @@ 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.asBukkitCopy(stack));
|
|
+ ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack)); // Paper - mirror so we can destroy it later
|
|
return null;
|
|
}
|
|
// CraftBukkit end
|
|
- ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
|
|
+ ItemEntity entityitem = new ItemEntity(world, 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();
|
|
// CraftBukkit start
|
|
@@ -3462,6 +3463,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
|
|
public Entity teleport(TeleportTransition teleportTarget) {
|
|
Level world = this.level();
|
|
|
|
+ // Paper start - Fix item duplication and teleport issues
|
|
+ if (!this.isAlive() || !this.valid) {
|
|
+ LOGGER.warn("Illegal Entity Teleport " + this + " to " + teleportTarget.newLevel() + ":" + teleportTarget.position(), new Throwable());
|
|
+ return null;
|
|
+ }
|
|
+ // Paper end - Fix item duplication and teleport issues
|
|
if (world instanceof ServerLevel worldserver) {
|
|
if (!this.isRemoved()) {
|
|
// CraftBukkit start
|
|
@@ -3550,6 +3557,11 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
|
|
gameprofilerfiller.pop();
|
|
return null;
|
|
} else {
|
|
+ // Paper start - Fix item duplication and teleport issues
|
|
+ if (this instanceof Leashable leashable) {
|
|
+ leashable.dropLeash(true, true); // Paper drop lead
|
|
+ }
|
|
+ // Paper end - Fix item duplication and teleport issues
|
|
entity.restoreFrom(this);
|
|
this.removeAfterChangingDimensions();
|
|
// CraftBukkit start - Forward the CraftEntity to the new entity
|
|
@@ -3662,6 +3674,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
|
|
}
|
|
|
|
public boolean canTeleport(Level from, Level to) {
|
|
+ if (!this.isAlive() || !this.valid) return false; // Paper - Fix item duplication and teleport issues
|
|
if (from.dimension() == Level.END && to.dimension() == Level.OVERWORLD) {
|
|
Iterator iterator = this.getPassengers().iterator();
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
index 324d654420c3d11f0695fdf029fde0300a865317..f7323f54b2ac7236d26da8998a88432f9776e1ea 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
@@ -1767,9 +1767,9 @@ public abstract class LivingEntity extends Entity implements Attackable {
|
|
// Paper start
|
|
org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(worldserver, damageSource);
|
|
if (deathEvent == null || !deathEvent.isCancelled()) {
|
|
- if (this.deathScore >= 0 && entityliving != null) {
|
|
- entityliving.awardKillScore(this, this.deathScore, damageSource);
|
|
- }
|
|
+ // if (this.deathScore >= 0 && entityliving != null) { // Paper - Fix item duplication and teleport issues; moved to be run earlier in #dropAllDeathLoot before destroying the drop items in CraftEventFactory#callEntityDeathEvent
|
|
+ // entityliving.awardKillScore(this, this.deathScore, damageSource);
|
|
+ // }
|
|
// Paper start - clear equipment if event is not cancelled
|
|
if (this instanceof Mob) {
|
|
for (EquipmentSlot slot : this.clearedEquipmentSlots) {
|
|
@@ -1863,8 +1863,13 @@ public abstract class LivingEntity extends Entity implements Attackable {
|
|
this.dropCustomDeathLoot(world, damageSource, flag);
|
|
this.clearEquipmentSlots = prev; // Paper
|
|
}
|
|
- // CraftBukkit start - Call death event
|
|
- org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops); // Paper
|
|
+ // CraftBukkit start - Call death event // Paper start - call advancement triggers with correct entity equipment
|
|
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops, () -> {
|
|
+ final LivingEntity entityliving = this.getKillCredit();
|
|
+ if (this.deathScore >= 0 && entityliving != null) {
|
|
+ entityliving.awardKillScore(this, this.deathScore, damageSource);
|
|
+ }
|
|
+ }); // Paper end
|
|
this.postDeathDropItems(deathEvent); // Paper
|
|
this.drops = new ArrayList<>();
|
|
// CraftBukkit end
|
|
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 e20565cf256aacd012a1722c5ebbf9016bc82e42..59fbfe8de2dc5ec020dd61a5e446b0b6f67d76e4 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
|
|
@@ -633,7 +633,7 @@ 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.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
|
|
+ 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.handItems.set(i, ItemStack.EMPTY);
|
|
}
|
|
}
|
|
@@ -641,7 +641,7 @@ 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.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
|
|
+ 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.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 0627e3be754dbf8201f3212cf823e2f8cb77cdeb..6b094f8bdf1f25d5c2e108eb88d95aed4a41f6f3 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
@@ -903,6 +903,11 @@ public class CraftEventFactory {
|
|
}
|
|
|
|
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops) {
|
|
+ // 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) {
|
|
+ // Paper end
|
|
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
|
|
CraftDamageSource bukkitDamageSource = new CraftDamageSource(damageSource);
|
|
CraftWorld world = (CraftWorld) entity.getWorld();
|
|
@@ -917,11 +922,13 @@ public class CraftEventFactory {
|
|
playDeathSound(victim, event);
|
|
// Paper end
|
|
victim.expToDrop = event.getDroppedExp();
|
|
+ lootCheck.run(); // Paper - advancement triggers before destroying items
|
|
|
|
for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
|
|
if (stack == null || stack.getType() == Material.AIR || stack.getAmount() == 0) continue;
|
|
|
|
- world.dropItem(entity.getLocation(), stack);
|
|
+ world.dropItem(entity.getLocation(), stack); // Paper - note: dropItem already clones due to this being bukkit -> NMS
|
|
+ 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;
|