mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-04 22:14:40 +01:00
167 lines
10 KiB
Diff
167 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 numerous item duplication issues 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 c8fb6387fb3ac2849a399b2ab1f30158aa734827..a02eb37845e0609ddf14a4214395e00443534b08 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -2162,11 +2162,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
|
|
} 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(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
|
|
+ ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - clone 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
|
|
@@ -2919,6 +2920,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
|
|
@Nullable
|
|
public Entity teleportTo(ServerLevel worldserver, BlockPos location) {
|
|
// CraftBukkit end
|
|
+ // Paper start - fix bad state entities causing dupes
|
|
+ if (!isAlive() || !valid) {
|
|
+ LOGGER.warn("Illegal Entity Teleport " + this + " to " + worldserver + ":" + location, new Throwable());
|
|
+ return null;
|
|
+ }
|
|
+ // Paper end
|
|
if (this.level instanceof ServerLevel && !this.isRemoved()) {
|
|
this.level.getProfiler().push("changeDimension");
|
|
// CraftBukkit start
|
|
@@ -2939,6 +2946,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
|
|
// CraftBukkit end
|
|
|
|
this.level.getProfiler().popPush("reloading");
|
|
+ // Paper start - Change lead drop timing to prevent dupe
|
|
+ if (this instanceof Mob) {
|
|
+ ((Mob) this).dropLeash(true, true); // Paper drop lead
|
|
+ }
|
|
+ // Paper end
|
|
Entity entity = this.getType().create(worldserver);
|
|
|
|
if (entity != null) {
|
|
@@ -2952,10 +2964,6 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
|
|
// CraftBukkit start - Forward the CraftEntity to the new entity
|
|
this.getBukkitEntity().setHandle(entity);
|
|
entity.bukkitEntity = this.getBukkitEntity();
|
|
-
|
|
- if (this instanceof Mob) {
|
|
- ((Mob) this).dropLeash(true, false); // Unleash to prevent duping of leads.
|
|
- }
|
|
// CraftBukkit end
|
|
}
|
|
|
|
@@ -3077,7 +3085,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
|
|
}
|
|
|
|
public boolean canChangeDimensions() {
|
|
- return true;
|
|
+ return isAlive() && valid; // Paper
|
|
}
|
|
|
|
public float getBlockExplosionResistance(Explosion explosion, BlockGetter world, BlockPos pos, BlockState blockState, FluidState fluidState, float max) {
|
|
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
index ab02e0babf6289d64b44dc18f3f6f0bdd4b83c32..198a0cfb222f40e792a9723eb25c514889ffe01f 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
@@ -1619,9 +1619,9 @@ public abstract class LivingEntity extends Entity {
|
|
// Paper start
|
|
org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(source);
|
|
if (deathEvent == null || !deathEvent.isCancelled()) {
|
|
- if (this.deathScore >= 0 && entityliving != null) {
|
|
- entityliving.awardKillScore(this, this.deathScore, source);
|
|
- }
|
|
+ // if (this.deathScore >= 0 && entityliving != null) { // Paper moved to be run earlier in #dropAllDeathLoot before destroying the drop items in CraftEventFactory#callEntityDeathEvent
|
|
+ // entityliving.awardKillScore(this, this.deathScore, source);
|
|
+ // }
|
|
// Paper start - clear equipment if event is not cancelled
|
|
if (this instanceof Mob mob) {
|
|
java.util.Collections.fill(mob.handItems, ItemStack.EMPTY);
|
|
@@ -1709,8 +1709,13 @@ public abstract class LivingEntity extends Entity {
|
|
this.dropCustomDeathLoot(source, i, flag);
|
|
this.clearEquipmentSlots = true; // Paper
|
|
}
|
|
- // CraftBukkit start - Call death event
|
|
- org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, 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, this.drops, () -> {
|
|
+ final LivingEntity entityliving = this.getKillCredit();
|
|
+ if (this.deathScore >= 0 && entityliving != null) {
|
|
+ entityliving.awardKillScore(this, this.deathScore, source);
|
|
+ }
|
|
+ }); // 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 a3a900d10440ed5ebe24370a77ccb6cad911cfc9..0d468631b9c260091e732925da43c177ebda892f 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 {
|
|
for (i = 0; i < this.handItems.size(); ++i) {
|
|
itemstack = (ItemStack) this.handItems.get(i);
|
|
if (!itemstack.isEmpty()) {
|
|
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
|
|
+ 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);
|
|
}
|
|
}
|
|
@@ -618,7 +618,7 @@ public class ArmorStand extends LivingEntity {
|
|
for (i = 0; i < this.armorItems.size(); ++i) {
|
|
itemstack = (ItemStack) this.armorItems.get(i);
|
|
if (!itemstack.isEmpty()) {
|
|
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
|
|
+ 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 b7129aef8b08e8bd33f9f276bc2f97bbe8f5c894..624ed3d956a5614b723d32c6ad047248c5f5b038 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
@@ -810,6 +810,11 @@ public class CraftEventFactory {
|
|
}
|
|
|
|
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops) {
|
|
+ // 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) {
|
|
+ // Paper end
|
|
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
|
|
EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
|
|
populateFields(victim, event); // Paper - make cancellable
|
|
@@ -823,11 +828,13 @@ 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;
|