[dr.lozer]

you can do like this:

pawn Код:

new Countdown = -1,Timer1;

forward Countdownstart();

public Countdownstart()
{
   Countdown --;
   
   new string[128];
   format(string,128,"%d~n~Seconds",Countdown);
   GameTextForAll(playerid,string,1000,4);
   if(Countdown == COMPETITIONTIME) {
      GameTextForAll("Competition Finished!",1000,4);
      KillTimer(Timer1);
      Countdown = COMPETITIONTIME;
      return 1;
   }
   Timer1 = SetTimer("CountdownStart",1000,0);
   return 1;
}

CMD:startcountdown(playerid)
{
   if(!IsPlayerAdmin(playerid)) return 0;
   if(Countdown != COMPETITIONTIME) return SendclientMessage(playerid, -1,"ERROR: Countdown is already started");
   Countdown = COMPETITIONTIME;
   CountdownStart();
   return 1;
}