From 8fdde462f2e026779ebfc379cad2693540bdbadb Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Thu, 7 Apr 2022 20:52:25 -0400
Subject: [PATCH] Strip enderpearl owners when they are no longer ticked
 (#7559)

---
 .../Block-Enderpearl-Travel-Exploit.patch     | 38 +++++++++----------
 .../server/Optimise-WorldServer-notify.patch  |  6 +--
 2 files changed, 20 insertions(+), 24 deletions(-)

diff --git a/patches/server/Block-Enderpearl-Travel-Exploit.patch b/patches/server/Block-Enderpearl-Travel-Exploit.patch
index 748168ba3..da3b40a25 100644
--- a/patches/server/Block-Enderpearl-Travel-Exploit.patch
+++ b/patches/server/Block-Enderpearl-Travel-Exploit.patch
@@ -26,6 +26,23 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        log("Disable Unloaded Chunk Enderpearl Exploit: " + (disableEnderpearlExploit ? "enabled" : "disabled"));
 +    }
  }
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+         public void onTickingEnd(Entity entity) {
+             ServerLevel.this.entityTickList.remove(entity);
++            // Paper start - Reset pearls when they stop being ticked
++            if (paperConfig.disableEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
++                pearl.cachedOwner = null;
++                pearl.ownerUUID = null;
++            }
++            // Paper end
+         }
+ 
+         public void onTrackingStart(Entity entity) {
 diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -38,24 +55,3 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          }
  
          this.leftOwner = nbt.getBoolean("LeftOwner");
-diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
-index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
---- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
-+++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
-@@ -0,0 +0,0 @@ public class ThrownEnderpearl extends ThrowableItemProjectile {
-             super.tick();
-         }
- 
-+        // Paper start
-+        if (this.level.paperConfig.disableEnderpearlExploit) {
-+            final net.minecraft.server.level.ChunkHolder chunkHolder = ((net.minecraft.server.level.ServerChunkCache) this.level.getChunkSource()).chunkMap.getVisibleChunkIfPresent(net.minecraft.world.level.ChunkPos.asLong(this.blockPosition()));
-+            if (chunkHolder == null || !net.minecraft.server.level.ChunkHolder.getFullChunkStatus(chunkHolder.getTicketLevel()).isOrAfter(net.minecraft.server.level.ChunkHolder.FullChunkStatus.ENTITY_TICKING)) {
-+                this.cachedOwner = null;
-+                this.ownerUUID = null;
-+            }
-+        }
-+        // Paper end
-+
-     }
- 
-     @Nullable
diff --git a/patches/server/Optimise-WorldServer-notify.patch b/patches/server/Optimise-WorldServer-notify.patch
index a60150170..0bdcb5009 100644
--- a/patches/server/Optimise-WorldServer-notify.patch
+++ b/patches/server/Optimise-WorldServer-notify.patch
@@ -179,9 +179,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
          public void onTickingEnd(Entity entity) {
              ServerLevel.this.entityTickList.remove(entity);
 +            ServerLevel.this.entityManager.removeNavigatorsFromData(entity); // Paper - optimise notify
-         }
- 
-         public void onTrackingStart(Entity entity) {
+             // Paper start - Reset pearls when they stop being ticked
+             if (paperConfig.disableEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
+                 pearl.cachedOwner = null;
 diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java