Paper/patches/server/0488-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/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 925626b74005ec9c031c3773171f7684ecc9ccd3..06fda053874e7ef0c8995b1a55e5f518b28eebc9 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1070,4 +1070,21 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
         return getHandle().isTicking();
     }
     // Paper end - isTicking API
+
+    // Paper start - tracked players API
+    @Override
+    public Set<org.bukkit.entity.Player> getTrackedPlayers() {
+        ServerLevel world = (net.minecraft.server.level.ServerLevel)this.entity.level();
+        ChunkMap.TrackedEntity tracker = world == null ? null : world.getChunkSource().chunkMap.entityMap.get(this.entity.getId());
+        if (tracker == null) {
+            return java.util.Collections.emptySet();
+        }
+
+        Set<org.bukkit.entity.Player> set = new java.util.HashSet<>(tracker.seenBy.size());
+        for (net.minecraft.server.network.ServerPlayerConnection connection : tracker.seenBy) {
+            set.add(connection.getPlayer().getBukkitEntity().getPlayer());
+        }
+        return set;
+    }
+    // Paper end - tracked players API
 }