118 lines
7.0 KiB
Diff
118 lines
7.0 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 250a9b5cd47114aa4743f9695dadec2ad485f99d..c6e659cd766facba6411e930d3ae1d2143c2f269 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -2126,11 +2126,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
|
|
} 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
|
|
@@ -2874,6 +2875,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
|
|
@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
|
|
@@ -2894,6 +2901,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
|
|
// 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((Level) worldserver);
|
|
|
|
if (entity != null) {
|
|
@@ -2907,10 +2919,6 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
|
|
// 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
|
|
}
|
|
|
|
@@ -3035,7 +3043,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
|
|
}
|
|
|
|
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/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
|
|
index cb9969d768b13863722aad3dc5daad3c10bb264a..5bfec185e15a54ee5fe6eab1aa59d1963d046262 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
|
|
@@ -611,7 +611,7 @@ 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);
|
|
}
|
|
}
|
|
@@ -619,7 +619,7 @@ 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 60226f5c408ebd83c958d6644204bfc03365638a..19724497e407c93f738c3bfaec72997dd5fe7ba1 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
|
|
@@ -807,7 +807,8 @@ public class CraftEventFactory {
|
|
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;
|