Updated playerJoinedCache to use UUID instead of player object

src/main/java/re/imc/geysermodelengine/listener/ModelListener.java

@@ -63,11 +63,13 @@ public class ModelListener implements Listener {
     //TODO Find out why we need this bc uh what?
     @EventHandler
     public void onPlayerLogin(PlayerJoinEvent event) {
-        Bukkit.getGlobalRegionScheduler().runDelayed(plugin, scheduledTask -> plugin.getPlayerManager().getPlayerJoinedCache().add(event.getPlayer()), 10);
+        Player player = event.getPlayer();
+        Bukkit.getGlobalRegionScheduler().runDelayed(plugin, scheduledTask -> plugin.getPlayerManager().getPlayerJoinedCache().add(player.getUniqueId()), 10);
     }
 
     @EventHandler
     public void onPlayerQuit(PlayerQuitEvent event) {
-        Bukkit.getGlobalRegionScheduler().runDelayed(plugin, scheduledTask -> plugin.getPlayerManager().getPlayerJoinedCache().remove(event.getPlayer()), 10);
+        Player player = event.getPlayer();
+        Bukkit.getGlobalRegionScheduler().runDelayed(plugin, scheduledTask -> plugin.getPlayerManager().getPlayerJoinedCache().remove(player.getUniqueId()), 10);
     }
 }

src/main/java/re/imc/geysermodelengine/managers/model/EntityTaskManager.java

@@ -102,7 +102,7 @@ public class EntityTaskManager {
 
     private void sendSpawnPacket(ModelEntityData model, Player onlinePlayer) {
         EntityTaskRunnable task = model.getEntityTask();
-        boolean firstJoined = !plugin.getPlayerManager().getPlayerJoinedCache().contains(onlinePlayer);
+        boolean firstJoined = !plugin.getPlayerManager().getPlayerJoinedCache().contains(onlinePlayer.getUniqueId());
 
         if (firstJoined) {
             task.sendEntityData(model, onlinePlayer, plugin.getConfigManager().getConfig().getInt("join-send-delay") / 50);
@@ -113,7 +113,7 @@ public class EntityTaskManager {
 
     public boolean canSee(Player player, PacketEntity entity) {
         if (!player.isOnline()) return false;
-        if (!plugin.getPlayerManager().getPlayerJoinedCache().contains(player)) return false;
+        if (!plugin.getPlayerManager().getPlayerJoinedCache().contains(player.getUniqueId())) return false;
 
         Location playerLocation = player.getLocation().clone();
         Location entityLocation = entity.getLocation().clone();

src/main/java/re/imc/geysermodelengine/managers/player/PlayerManager.java

@@ -1,14 +1,13 @@
 package re.imc.geysermodelengine.managers.player;
 
-import org.bukkit.entity.Player;
-
 import java.util.HashSet;
+import java.util.UUID;
 
 public class PlayerManager {
 
-    private final HashSet<Player> playerJoinedCache = new HashSet<>();
+    private final HashSet<UUID> playerJoinedCache = new HashSet<>();
 
-    public HashSet<Player> getPlayerJoinedCache() {
+    public HashSet<UUID> getPlayerJoinedCache() {
         return playerJoinedCache;
     }
 }