From 04324c58b29f3eee8f8f12dbc2da129e715d4f42 Mon Sep 17 00:00:00 2001
From: Omer Uddin <kickash32@gmail.com>
Date: Thu, 28 Jan 2021 20:32:58 -0500
Subject: [PATCH] Disable enderpearls when they hit non-ticking chunk if
 disableEnderpearlExploit is enabled

---
 ...0197-Block-Enderpearl-Travel-Exploit.patch | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/patches/server/0197-Block-Enderpearl-Travel-Exploit.patch b/patches/server/0197-Block-Enderpearl-Travel-Exploit.patch
index 517fbba40b..afec4cdfb5 100644
--- a/patches/server/0197-Block-Enderpearl-Travel-Exploit.patch
+++ b/patches/server/0197-Block-Enderpearl-Travel-Exploit.patch
@@ -38,3 +38,31 @@ index e4294219be68c6f99cd0e5ea8330fae6dc03ddde..b09f52330b50879d5594b21302e70ca6
          }
  
          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 541ca82405d0b4d1457dcd63b58dc61eb67482d6..002725b24f0eaee10a9a529c847dfb78538c6bd4 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
+@@ -12,6 +12,7 @@ import net.minecraft.world.entity.monster.Endermite;
+ import net.minecraft.world.entity.player.Player;
+ import net.minecraft.world.item.Item;
+ import net.minecraft.world.item.Items;
++import net.minecraft.world.level.ChunkPos;
+ import net.minecraft.world.level.GameRules;
+ import net.minecraft.world.level.Level;
+ import net.minecraft.world.phys.EntityHitResult;
+@@ -108,6 +109,15 @@ 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(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.setOwner(null);
++            }
++        }
++        // Paper end
++
+     }
+ 
+     @Nullable