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c6aa61ee18
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: b9df8e9f SPIGOT-7933: Improve custom Minecart max speed fc496179 Fix InstrumentTest 7c0ec598 PR-1075: Make Art an interface c389f5a4 PR-1074: Make Sound an interface CraftBukkit Changes: df1efc0bb SPIGOT-7945: `Bukkit#dispatchCommand` throws `UnsupportedOperationException` 285df6e85 SPIGOT-7933: Improve custom Minecart max speed a0f3d4e50 SPIGOT-7940: Recipe book errors after reload 9e0618ec2 SPIGOT-7937: Cannot spawn minecart during world generation with minecart_improvements enabled 1eb4d28da SPIGOT-7941: Fix resistance over 4 amplify causing issues in damage 52b99158a PR-1504: Make Art an interface e18ae35f1 PR-1502: Make Sound an interface Spigot Changes: e65d67a7 SPIGOT-7934: Item entities start "bouncing" under certain conditions
156 lines
10 KiB
Diff
156 lines
10 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sat, 25 Apr 2020 06:46:35 -0400
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Subject: [PATCH] Fix item duplication and teleport issues
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This notably fixes the newest "Donkey Dupe", but also fixes a lot
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of dupe bugs in general around nether portals and entity world transfer
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We also fix item duplication generically by anytime we clone an item
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to drop it on the ground, destroy the source item.
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This avoid an itemstack ever existing twice in the world state pre
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clean up stage.
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So even if something NEW comes up, it would be impossible to drop the
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same item twice because the source was destroyed.
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index 416e76f2124aba0c9ad6e6ecb052e73a8b743f37..8b4ded85500379bd7dafba51a91732dc56b815e6 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -2631,11 +2631,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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} else {
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// CraftBukkit start - Capture drops for death event
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if (this instanceof net.minecraft.world.entity.LivingEntity && !((net.minecraft.world.entity.LivingEntity) this).forceDrops) {
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- ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(stack));
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+ ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack)); // Paper - mirror so we can destroy it later
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return null;
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}
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// CraftBukkit end
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- ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
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+ ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - copy so we can destroy original
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+ stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
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entityitem.setDefaultPickUpDelay();
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// CraftBukkit start
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@@ -3463,6 +3464,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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public Entity teleport(TeleportTransition teleportTarget) {
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Level world = this.level();
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+ // Paper start - Fix item duplication and teleport issues
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+ if ((!this.isAlive() || !this.valid) && (teleportTarget.newLevel() != world)) {
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+ LOGGER.warn("Illegal Entity Teleport " + this + " to " + teleportTarget.newLevel() + ":" + teleportTarget.position(), new Throwable());
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+ return null;
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+ }
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+ // Paper end - Fix item duplication and teleport issues
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if (world instanceof ServerLevel worldserver) {
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if (!this.isRemoved()) {
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// CraftBukkit start
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@@ -3551,6 +3558,11 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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gameprofilerfiller.pop();
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return null;
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} else {
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+ // Paper start - Fix item duplication and teleport issues
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+ if (this instanceof Leashable leashable) {
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+ leashable.dropLeash(true, true); // Paper drop lead
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+ }
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+ // Paper end - Fix item duplication and teleport issues
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entity.restoreFrom(this);
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this.removeAfterChangingDimensions();
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// CraftBukkit start - Forward the CraftEntity to the new entity
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@@ -3663,6 +3675,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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}
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public boolean canTeleport(Level from, Level to) {
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+ if (!this.isAlive() || !this.valid) return false; // Paper - Fix item duplication and teleport issues
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if (from.dimension() == Level.END && to.dimension() == Level.OVERWORLD) {
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Iterator iterator = this.getPassengers().iterator();
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index 33d969e09372930e740a8a4a84e5503284df9c28..4d39aa2fdc311acb34d7b674365141b995c324b7 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -1765,9 +1765,9 @@ public abstract class LivingEntity extends Entity implements Attackable {
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// Paper start
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org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(worldserver, damageSource);
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if (deathEvent == null || !deathEvent.isCancelled()) {
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- if (this.deathScore >= 0 && entityliving != null) {
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- entityliving.awardKillScore(this, this.deathScore, damageSource);
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- }
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+ // 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
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+ // entityliving.awardKillScore(this, this.deathScore, damageSource);
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+ // }
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// Paper start - clear equipment if event is not cancelled
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if (this instanceof Mob) {
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for (EquipmentSlot slot : this.clearedEquipmentSlots) {
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@@ -1861,8 +1861,13 @@ public abstract class LivingEntity extends Entity implements Attackable {
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this.dropCustomDeathLoot(world, damageSource, flag);
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this.clearEquipmentSlots = prev; // Paper
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}
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- // CraftBukkit start - Call death event
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- org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops); // Paper
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+ // CraftBukkit start - Call death event // Paper start - call advancement triggers with correct entity equipment
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+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops, () -> {
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+ final LivingEntity entityliving = this.getKillCredit();
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+ if (this.deathScore >= 0 && entityliving != null) {
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+ entityliving.awardKillScore(this, this.deathScore, damageSource);
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+ }
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+ }); // Paper end
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this.postDeathDropItems(deathEvent); // Paper
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this.drops = new ArrayList<>();
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// CraftBukkit end
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diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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index e20565cf256aacd012a1722c5ebbf9016bc82e42..59fbfe8de2dc5ec020dd61a5e446b0b6f67d76e4 100644
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--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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@@ -633,7 +633,7 @@ public class ArmorStand extends LivingEntity {
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for (i = 0; i < this.handItems.size(); ++i) {
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itemstack = (ItemStack) this.handItems.get(i);
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if (!itemstack.isEmpty()) {
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- this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
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+ 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
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this.handItems.set(i, ItemStack.EMPTY);
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}
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}
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@@ -641,7 +641,7 @@ public class ArmorStand extends LivingEntity {
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for (i = 0; i < this.armorItems.size(); ++i) {
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itemstack = (ItemStack) this.armorItems.get(i);
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if (!itemstack.isEmpty()) {
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- this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
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+ 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
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this.armorItems.set(i, ItemStack.EMPTY);
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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index 74f33aeb6193080446ebbcc5242d95c3b1c97823..f482fc14e171129f9fa60113b1223b2db79ec6ec 100644
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--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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@@ -903,6 +903,11 @@ public class CraftEventFactory {
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}
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public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops) {
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+ // Paper start
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+ return CraftEventFactory.callEntityDeathEvent(victim, damageSource, drops, com.google.common.util.concurrent.Runnables.doNothing());
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+ }
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+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, DamageSource damageSource, List<org.bukkit.inventory.ItemStack> drops, Runnable lootCheck) {
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+ // Paper end
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CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
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CraftDamageSource bukkitDamageSource = new CraftDamageSource(damageSource);
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CraftWorld world = (CraftWorld) entity.getWorld();
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@@ -917,11 +922,13 @@ public class CraftEventFactory {
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playDeathSound(victim, event);
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// Paper end
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victim.expToDrop = event.getDroppedExp();
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+ lootCheck.run(); // Paper - advancement triggers before destroying items
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for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
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if (stack == null || stack.getType() == Material.AIR || stack.getAmount() == 0) continue;
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- world.dropItem(entity.getLocation(), stack);
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+ world.dropItem(entity.getLocation(), stack); // Paper - note: dropItem already clones due to this being bukkit -> NMS
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+ 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
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}
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return event;
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