Проверка игрока при входе на сервер

1) Как сделать, когда игрок заходит на сервер, чтоб сервер проверял есть ли он в некой таблице, если нет -> создание рядка с его ником.
PS: самое непонятное, это как сделать проверку сразу как он зашел

2) Как сделать проверку кто убил игрока в ПвП?

Это не повод делать даблпост, есть кнопка "Edit".

Что-то мне подсказывает что надо ковырять HandlePlayerKillMe

Вот я как раз и смотрю его.

Code:

using System;
using System.Collections.Generic;
using System.Xml;
using System.Reflection;
using Terraria;
using Hooks;
using MySql.Data.MySqlClient;
using System.Threading;
using System.ComponentModel;
using C3Mod.GameTypes;
using System.IO;
using TShockAPI;
using TShockAPI.DB;
using TShockAPI.Net;
using System.IO.Streams;
 
namespace C3Mod
{
    internal delegate bool GetDataHandlerDelegate(GetDataHandlerArgs args);
    internal class GetDataHandlerArgs : EventArgs
    {
        public TSPlayer Player { get; private set; }
        public MemoryStream Data { get; private set; }
 
        public Player TPlayer
        {
            get { return Player.TPlayer; }
        }
 
        public GetDataHandlerArgs(TSPlayer player, MemoryStream data)
        {
            Player = player;
            Data = data;
        }
    }
    internal static class GetDataHandlers
    {
        private static Dictionary<PacketTypes, GetDataHandlerDelegate> GetDataHandlerDelegates;
 
        public static void InitGetDataHandler()
        {
            GetDataHandlerDelegates = new Dictionary<PacketTypes, GetDataHandlerDelegate>
            {
                {PacketTypes.PlayerKillMe, HandlePlayerKillMe},             
                {PacketTypes.PlayerDamage, HandlePlayerDamage},
            };
        }
 
        public static bool HandlerGetData(PacketTypes type, TSPlayer player, MemoryStream data)
        {
            GetDataHandlerDelegate handler;
            if (GetDataHandlerDelegates.TryGetValue(type, out handler))
            {
                try
                {
                    return handler(new GetDataHandlerArgs(player, data));
                }
                catch (Exception ex)
                {
                    Log.Error(ex.ToString());
                }
            }
            return false;
        }
 
        private static bool HandlePlayerKillMe(GetDataHandlerArgs args)
        {
            int index = args.Player.Index; //Attacking Player
            byte PlayerID = (byte)args.Data.ReadByte();
            byte hitDirection = (byte)args.Data.ReadByte();
            Int16 Damage = (Int16)args.Data.ReadInt16();
            bool PVP = args.Data.ReadBoolean();
            var player = C3Tools.GetC3PlayerByIndex(PlayerID);
 
            if (player.SpawnProtectionEnabled)
            {
                NetMessage.SendData(4, -1, PlayerID, player.PlayerName, PlayerID, 0f, 0f, 0f, 0);
                return true;
            }
 
            if (player.GameType == "ffa")
            {
                player.KillingPlayer.FFAScore++;
                C3Tools.BroadcastMessageToGametype("ffa", player.KillingPlayer.PlayerName + " - Score : " + player.KillingPlayer.FFAScore + " -- kills -- " + player.PlayerName + " - Score : " + player.FFAScore, Color.Black);
                player.Dead = true;
                player.TSPlayer.TPlayer.dead = true;
            }
 
            if (player.KillingPlayer != null)
            {
                C3Events.Death(player.KillingPlayer, player, player.GameType, PVP);
                player.KillingPlayer = null;
            }
 
            return false;
        }
 
        private static bool HandlePlayerDamage(GetDataHandlerArgs args)
        {
            int index = args.Player.Index; //Attacking Player
            byte PlayerID = (byte)args.Data.ReadByte(); //Damaged Player
            byte hitDirection = (byte)args.Data.ReadByte();
            Int16 Damage = (Int16)args.Data.ReadInt16();
            var player = C3Tools.GetC3PlayerByIndex(PlayerID);
            bool PVP = args.Data.ReadBoolean();
            byte Crit = (byte)args.Data.ReadByte();
 
            if (player.SpawnProtectionEnabled)
            {
                C3Tools.GetC3PlayerByIndex(index).TSPlayer.SendData(PacketTypes.PlayerUpdate, "", PlayerID);
                return true;
            }
 
            if (index != PlayerID)
            {
                player.KillingPlayer = C3Tools.GetC3PlayerByIndex(index);
            }
            else
                player.KillingPlayer = null;
 
            return false;
        }
    }
}