#define MAX_PING                        500

forward CheckPing();

new
    pingtimer;

public OnGameModeInit()
{
    pingtimer = SetTimer("CheckPing", 2000, 1);
    return 1;
}

public OnGameModeExit()
{
    KillTimer(pingtimer);
}

public CheckPing()
{
    for (new i; i < MAX_PLAYERS; ++i)
    {
        if (IsPlayerConnected(i) && GetPlayerPing(i) > MAX_PING && GetPlayerState(i) != PLAYER_STATE_NONE)
        {
            SendClientMessage(i, 0xFF000000, "You have been kicked for exceeding the ping limit of "#MAX_PING"");
            Kick(i);
        }
    }
}