diff options
Diffstat (limited to 'patches/unapplied/server/0343-Fix-item-duplication-and-teleport-issues.patch')
| -rw-r--r-- | patches/unapplied/server/0343-Fix-item-duplication-and-teleport-issues.patch | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/patches/unapplied/server/0343-Fix-item-duplication-and-teleport-issues.patch b/patches/unapplied/server/0343-Fix-item-duplication-and-teleport-issues.patch new file mode 100644 index 0000000000..8b468ae1a2 --- /dev/null +++ b/patches/unapplied/server/0343-Fix-item-duplication-and-teleport-issues.patch @@ -0,0 +1,155 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Aikar <[email protected]> +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 dce9bdf371ebbfd4407ac7ca940df29777384232..5ed8a86b6525992a3e8ffa63feef82e29180f0e9 100644 +--- a/src/main/java/net/minecraft/world/entity/Entity.java ++++ b/src/main/java/net/minecraft/world/entity/Entity.java +@@ -2631,11 +2631,12 @@ 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 +@@ -3463,6 +3464,12 @@ 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) && (teleportTarget.newLevel() != world)) { ++ 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 +@@ -3551,6 +3558,11 @@ 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 +@@ -3663,6 +3675,7 @@ 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 06cac1b4c9e97cade7dd6e7971ca06e934b495ac..911dcfb9b34d94e38db71c17022b8a8c1e707eb7 100644 +--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java ++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java +@@ -1765,9 +1765,9 @@ 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) { +@@ -1861,8 +1861,13 @@ 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 74f33aeb6193080446ebbcc5242d95c3b1c97823..f482fc14e171129f9fa60113b1223b2db79ec6ec 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; |