kill zone

using System; 
using Addon; 
using System.Collections.Generic; 
using System.Text; 
 
 
namespace killzone 
{ 
    public class killzone : CPlugin 
    { 
        Dictionary<int, int> HudElem = new Dictionary<int, int>(); 
 
        public static float Difference(float loc, float loc2) 
        { 
            return Math.Abs(loc - loc2); 
        } 
 
 
        float x; 
        float y; 
 
        int distW; 
        int distKill; 
  
        String map = ""; 
  
        public override void OnMapChange() 
        { 
            map = GetDvar("mapname"); 
            if (map == "mp_mogadishu") 
            { 
                ////Zone of Death 
                x = 1000f; //coord X 
                y = 2100f; // coord Y 
                distKill = 200; // Zone of Death 
                //// Warning Message 
                distW = distKill + 100; 
            } 
        } 
 
 
        public override void OnServerFrame() 
        { 
 
           List<ServerClient> clients; 
            try 
            { 
                clients = GetClients(); 
                if (clients != null) 
                { 
                    foreach (ServerClient client in GetClients()) 
                    { 
                        HudElem hud = GetHudElement(HudElem[client.ClientNum]); 
                        if (client.Other.isAlive == true && 
       client.ConnectionState != ConnectionStates.MapLoading && 
       client.ConnectionState != ConnectionStates.Connecting && 
       client.ConnectionState != ConnectionStates.Zombie) 
                        { 
 
                           if (map == "mp_mogadishu") 
                            { 
                                if ((Difference(client.OriginX, x) <= distKill) && (Difference(client.OriginY, y) <= distKill)) 
                                { 
                                    KillPlayer(client.ClientNum, client.ClientNum, GetWeapon("iw5_m60jugg"), string.Empty); 
                                } 
 
                                if ((Difference(client.OriginX, x) <= distW) && (Difference(client.OriginY, y) <= distW)) 
                               { 
                                    hud.SetString("^1ВНИМАНИЕ! ВЫ рядом с Зоной Смерти!!!"); 
                                } 
                                else 
                                { 
                                    hud.SetString(""); 
                                } 
                            } 
                        } 
                    } 
                } 
            } 
            catch (Exception e) 
            { 
                ServerPrint("Error in killzone plugin: \n" + 
                             e.Message + "\n" + 
                             e.StackTrace + "\n" + 
                             e.Source + "\n" + 
                             e.InnerException + "\n" + 
                             e.HelpLink); 
            } 
  
        } 
        private int CreateHud(int ClientNum) 
        { 
            HudElem hud = CreateNewHudElem(); 
            hud.Type = HudElementTypes.Text; 
            hud.ShowToEnt = ClientNum; 
            hud.HideInMenu = true; 
            hud.Font = HudElementFonts.Default; 
            hud.FontScale = 1.5f; 
            hud.PointType = 120; 
            hud.OriginY = 300f; 
            hud.OriginX = -100f; 
            hud.SetString(""); 
            return hud.HudElementNum; 
        } 
        public override void OnPlayerDisconnect(ServerClient Client) 
        { 
            if (HudElem.ContainsKey(Client.ClientNum)) 
            { 
                HudElem hud2 = GetHudElement(HudElem[Client.ClientNum]); 
                hud2.Type = HudElementTypes.None; 
                HudElem.Remove(Client.ClientNum); 
            } 
        } 
        public override void OnPlayerConnect(ServerClient Client) 
        { 
            int Hud1 = CreateHud(Client.ClientNum); 
            if (HudElem.ContainsKey(Client.ClientNum)) 
                HudElem[Client.ClientNum] = Hud1; 
            else 
                HudElem.Add(Client.ClientNum, Hud1); 
        } 
 
   } 
 
}