Paper/Spigot-Server-Patches/0678-Expose-Tracked-Players.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tom <cryptite@gmail.com>
Date: Fri, 26 Feb 2021 16:24:25 -0600
Subject: [PATCH] Expose Tracked Players


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 8b4df4affb798c19a8f2e968b3ca77aa22241201..038e44fc94b9920f2af9e2ede626950d1add06bc 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -172,7 +172,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
     public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
     private CraftEntity bukkitEntity;
 
-    PlayerChunkMap.EntityTracker tracker; // Paper
+    public PlayerChunkMap.EntityTracker tracker; // Paper package private -> public
     public boolean collisionLoadChunks = false; // Paper
     public Throwable addedToWorldStack; // Paper - entity debug
     public CraftEntity getBukkitEntity() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 89737dfb0244a6dfe3a2cc2d77a7b16a64f469bb..c86d7435346d9cb04cf798939ccfa54488f20480 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -16,6 +16,7 @@ import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Collections; // Paper
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedHashMap;
@@ -2297,6 +2298,21 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     }
     // Paper end
 
+    // Paper start
+    @Override
+    public Set<Player> getTrackedPlayers() {
+        if (entity.tracker == null) {
+            return Collections.emptySet();
+        }
+
+        Set<Player> set = new HashSet<>(entity.tracker.trackedPlayers.size());
+        for (EntityPlayer entityPlayer : entity.tracker.trackedPlayers) {
+            set.add(entityPlayer.getBukkitEntity().getPlayer());
+        }
+        return set;
+    }
+    // Paper end
+
     // Spigot start
     private final Player.Spigot spigot = new Player.Spigot()
     {