Implement pointer feature

src/main/java/net/minestom/server/entity/Player.java

@@ -6,6 +6,7 @@ import net.kyori.adventure.bossbar.BossBar;
 import net.kyori.adventure.identity.Identified;
 import net.kyori.adventure.identity.Identity;
 import net.kyori.adventure.inventory.Book;
+import net.kyori.adventure.pointer.Pointers;
 import net.kyori.adventure.sound.Sound;
 import net.kyori.adventure.sound.SoundStop;
 import net.kyori.adventure.text.Component;
@@ -182,6 +183,7 @@ public class Player extends LivingEntity implements CommandSender, Localizable,
 
     // Adventure
     private Identity identity;
+    private Pointers pointers;
 
     public Player(@NotNull UUID uuid, @NotNull String username, @NotNull PlayerConnection playerConnection) {
         super(EntityType.PLAYER, uuid);
@@ -2533,6 +2535,19 @@ public class Player extends LivingEntity implements CommandSender, Localizable,
         return this.identity;
     }
 
+    @Override
+    public @NotNull Pointers pointers() {
+        if (this.pointers == null) {
+            this.pointers = Pointers.builder()
+                    .withDynamic(Identity.UUID, this::getUuid)
+                    .withDynamic(Identity.NAME, this::getUsername)
+                    .withDynamic(Identity.DISPLAY_NAME, this::getDisplayName)
+                    .build();
+        }
+
+        return this.pointers;
+    }
+
     @Override
     public void setUuid(@NotNull UUID uuid) {
         super.setUuid(uuid);

src/main/java/net/minestom/server/instance/Instance.java

@@ -1,6 +1,8 @@
 package net.minestom.server.instance;
 
 import com.google.common.collect.Queues;
+import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.pointer.Pointers;
 import net.minestom.server.MinecraftServer;
 import net.minestom.server.Tickable;
 import net.minestom.server.UpdateManager;
@@ -107,6 +109,9 @@ public abstract class Instance implements BlockModifier, Tickable, EventHandler<
     // Pathfinder
     private final PFInstanceSpace instanceSpace = new PFInstanceSpace(this);
 
+    // Adventure
+    private Pointers pointers = null;
+
     /**
      * Creates a new instance.
      *
@@ -1114,4 +1119,15 @@ public abstract class Instance implements BlockModifier, Tickable, EventHandler<
     public PFInstanceSpace getInstanceSpace() {
         return instanceSpace;
     }
+
+    @Override
+    public @NotNull Pointers pointers() {
+        if (this.pointers == null) {
+            this.pointers = Pointers.builder()
+                    .withDynamic(Identity.UUID, this::getUniqueId)
+                    .build();
+        }
+
+        return this.pointers;
+    }
 }

src/main/java/net/minestom/server/scoreboard/Team.java

@@ -1,6 +1,8 @@
 package net.minestom.server.scoreboard;
 
 import com.google.common.collect.MapMaker;
+import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.pointer.Pointers;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
 import net.minestom.server.MinecraftServer;
@@ -73,6 +75,9 @@ public class Team implements PacketGroupingAudience {
     private final Set<Player> playerMembers = Collections.newSetFromMap(new MapMaker().weakKeys().makeMap());
     private boolean isPlayerMembersUpToDate;
 
+    // Adventure
+    private Pointers pointers;
+
     /**
      * Default constructor to creates a team.
      *
@@ -587,4 +592,16 @@ public class Team implements PacketGroupingAudience {
 
         return this.playerMembers;
     }
+
+    @Override
+    public @NotNull Pointers pointers() {
+        if (this.pointers == null) {
+            this.pointers = Pointers.builder()
+                    .withDynamic(Identity.NAME, this::getTeamName)
+                    .withDynamic(Identity.DISPLAY_NAME, this::getTeamDisplayName)
+                    .build();
+        }
+
+        return this.pointers;
+    }
 }