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path: root/patches/server/1056-Allow-using-old-ender-pearl-behavior.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sun, 27 Oct 2024 12:36:53 -0700
Subject: [PATCH] Allow using old ender pearl behavior

When enabled, ender pearls will not load chunks and will save to the world instead of the player.

== AT ==
public net.minecraft.world.entity.projectile.Projectile cachedOwner

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 4e4e5b7e8c387cf13cf5bc5e39d334c3222c9103..cffbd3300967e5d80b5973b35a76235bb2aa1b73 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -836,6 +836,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
 
             while (iterator.hasNext()) {
                 ThrownEnderpearl entityenderpearl = (ThrownEnderpearl) iterator.next();
+                if (entityenderpearl.level().paperConfig().misc.legacyEnderPearlBehavior) continue; // Paper - Allow using old ender pearl behavior
 
                 if (entityenderpearl.isRemoved()) {
                     ServerPlayer.LOGGER.warn("Trying to save removed ender pearl, skipping");
@@ -3146,7 +3147,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
     }
 
     public static long placeEnderPearlTicket(ServerLevel world, ChunkPos chunkPos) {
-        world.getChunkSource().addRegionTicket(TicketType.ENDER_PEARL, chunkPos, 2, chunkPos);
+        if (!world.paperConfig().misc.legacyEnderPearlBehavior) world.getChunkSource().addRegionTicket(TicketType.ENDER_PEARL, chunkPos, 2, chunkPos); // Paper - Allow using old ender pearl behavior
         return TicketType.ENDER_PEARL.timeout();
     }
 
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index cf42042c754b30e41c0ec8a6a15195369bdbd199..1fcd9cd9344b0d2c4752042b07142db7d727dce8 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -602,7 +602,13 @@ public abstract class PlayerList {
         while (iterator.hasNext()) {
             ThrownEnderpearl entityenderpearl = (ThrownEnderpearl) iterator.next();
 
+            // Paper start - Allow using old ender pearl behavior
+            if (!entityenderpearl.level().paperConfig().misc.legacyEnderPearlBehavior) {
             entityenderpearl.setRemoved(Entity.RemovalReason.UNLOADED_WITH_PLAYER, EntityRemoveEvent.Cause.PLAYER_QUIT); // CraftBukkit - add Bukkit remove cause
+            } else {
+                entityenderpearl.cachedOwner = null;
+            }
+            // Paper end - Allow using old ender pearl behavior
         }
 
         worldserver.removePlayerImmediately(entityplayer, Entity.RemovalReason.UNLOADED_WITH_PLAYER);
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 5f790dd24f2bdae827c6dc597064b9b265089751..bd2684528157f928460f2143dd71a48e11983123 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
@@ -252,7 +252,7 @@ public class ThrownEnderpearl extends ThrowableItemProjectile {
         Entity entity = super.teleport(teleportTarget);
 
         if (entity != null) {
-            entity.placePortalTicket(BlockPos.containing(entity.position()));
+            if (!this.level().paperConfig().misc.legacyEnderPearlBehavior) entity.placePortalTicket(BlockPos.containing(entity.position())); // Paper - Allow using old ender pearl behavior
         }
 
         return entity;