[Coudio]

PHP код:

// At the top of your script
forward Robbery(playerid);
// OnPlayerCommandText
if(!strcmp(cmdtext, "/robbery", true))
{
    GameTextForPlayer(playerid, "~Y~You are Attempting to ~r~ Hack ~y~ Bank Door ~n~ ~g~ You have to wait...", 30000, 5);
    SetTimer("Robbery" ,30000 ,0);
    return 1;
}
// At the end of the script
public Robbery(playerid)
{
   // NEXT STEP
   return 1;
} 


EDIT: Or use Fj0rtizFredde's code