[avivelkayam]

Код:

forward CountDown(cd);
public CountDown(cd)
{
      new ctd[20];
      format(ctd, sizeof(ctd), "%d", cd);
      GameTextForAll(ctd,1000,3);
      if(cd > 0)
      {
              cd--;
              SetTimerEx("CountDown",false, 1000, "d", cd);
       }
       else GameTextForAll("Go",1000,3);
       return 1;
}

and if you want to do a 1 min countdown you use:
CountDown(60);


hope i help