Find by player's UID not IID

src/main/java/emu/grasscutter/commands/PlayerCommands.java

@@ -51,7 +51,7 @@ public final class PlayerCommands {
                 case 2:
                     try {
                         target = Integer.parseInt(args.get(0));
-                        if(Grasscutter.getGameServer().getPlayerById(target) == null) {
+                        if(Grasscutter.getGameServer().getPlayerByUid(target) == null) {
                             target = player.getId(); amount = Integer.parseInt(args.get(1));
                             item = Integer.parseInt(args.get(0));
                         } else {
@@ -66,7 +66,7 @@ public final class PlayerCommands {
                 case 3:
                     try {
                         target = Integer.parseInt(args.get(0));
-                        if(Grasscutter.getGameServer().getPlayerById(target) == null) {
+                        if(Grasscutter.getGameServer().getPlayerByUid(target) == null) {
                             CommandHandler.sendMessage(player, "Invalid player ID."); return;
                         }
 
@@ -80,7 +80,7 @@ public final class PlayerCommands {
                     break;
             }
 
-            GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerById(target);
+            GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
             if(targetPlayer == null) {
                 CommandHandler.sendMessage(player, "Player not found."); return;
             }
@@ -107,7 +107,7 @@ public final class PlayerCommands {
                 int item = Integer.parseInt(args.get(1));
                 int amount = 1; if(args.size() > 2) amount = Integer.parseInt(args.get(2));
                 
-                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerById(target);
+                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
                 if(targetPlayer == null) {
                     CommandHandler.sendMessage(null, "Player not found."); return;
                 }

src/main/java/emu/grasscutter/commands/ServerCommands.java

@@ -42,7 +42,7 @@ public final class ServerCommands {
                 int target = Integer.parseInt(args.get(0));
                 String message = String.join(" ", args.subList(1, args.size()));
 
-                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerById(target);
+                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
                 if(targetPlayer == null) {
                     CommandHandler.sendMessage(null, "Player not found."); return;
                 }
@@ -64,7 +64,7 @@ public final class ServerCommands {
                 int target = Integer.parseInt(args.get(0));
                 String message = String.join(" ", args.subList(1, args.size()));
 
-                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerById(target);
+                GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
                 if(targetPlayer == null) {
                     CommandHandler.sendMessage(null, "Player not found."); return;
                 }
@@ -108,7 +108,7 @@ public final class ServerCommands {
                     Account account = DatabaseHelper.createAccountWithId(username, uid);
                     if(account == null) {
                         CommandHandler.sendMessage(null, "Account already exists."); return;
-                    } else CommandHandler.sendMessage(null, "Account created with UID " + account.getId() + ".");
+                    } else CommandHandler.sendMessage(null, "Account created with UID " + account.getPlayerId() + ".");
                     return;
                 case "delete":
                     if(DatabaseHelper.deleteAccount(username)) {

src/main/java/emu/grasscutter/database/DatabaseHelper.java

@@ -36,6 +36,7 @@ public class DatabaseHelper {
 			if (reservedId == GenshinConstants.SERVER_CONSOLE_UID) {
 				return null;
 			}
+			
 			exists = DatabaseHelper.getAccountByPlayerId(reservedId);
 			if (exists != null) {
 				return null;

src/main/java/emu/grasscutter/server/game/GameServer.java

 package emu.grasscutter.server.game;
 
 import java.net.InetSocketAddress;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-import java.util.Timer;
-import java.util.TimerTask;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 
 import emu.grasscutter.GenshinConstants;
@@ -115,6 +110,12 @@ public final class GameServer extends MihoyoKcpServer {
 		return this.getPlayers().get(id);
 	}
 	
+	public GenshinPlayer getPlayerByUid(int uid) {
+		return this.getPlayers().values().stream()
+				.filter(player -> player.getAccount().getPlayerId() == uid)
+				.findFirst().orElse(this.getPlayerById(uid));
+	}
+	
 	public GenshinPlayer forceGetPlayerById(int id) {
 		// Console check
 		if (id == GenshinConstants.SERVER_CONSOLE_UID) {