if(newkeys & KEY_FIRE)
    {
        if(IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            new engine, lights, alarm, doors, bonnet, boot, objective, string[100];
            GetVehicleParamsEx(GetPlayerVehicleID(playerid), engine, lights, alarm, doors, bonnet, boot, objective);
            if(VoziloJeBicikla(GetVehicleModel(GetPlayerVehicleID(playerid)))) return 1;
            if(engine == 0 || engine == -1)
            {
                new Float:HP;
                GetVehicleHealth(GetPlayerVehicleID(playerid), HP);
                if(HP < 400.0) return SCM(playerid,-1, ""SIVA"Vozilo vam je previse osteceno, pozovite mehanicara!");
                if(Fuel[GetPlayerVehicleID(playerid)] <= 0) return SCM(playerid,-1, ""SIVA"Nemate goriva u vozilu pa ne mozete upaliti motor!");
                SetVehicleParamsEx(GetPlayerVehicleID(playerid), 1, lights, alarm, doors, bonnet, boot, objective);
                format(string,sizeof(string), "* %s pali motor na vozilu.", GetName(playerid));
                ProxDetector(20.0, playerid, string, PROX,PROX,PROX,PROX,PROX);
                format(string, sizeof(string), "~g~o");
                PlayerTextDrawSetString(playerid, BRZINOMER[4][playerid], string);
            }
        }
    }
   if(newkeys & KEY_YES)
    {
        if(IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            new engine, lights, alarm, doors, bonnet, boot, objective, string[100];
            GetVehicleParamsEx(GetPlayerVehicleID(playerid), engine, lights, alarm, doors, bonnet, boot, objective);
if(engine == 1)
            {
            if(VoziloJeBicikla(GetVehicleModel(GetPlayerVehicleID(playerid)))) return 1;
                SetVehicleParamsEx(GetPlayerVehicleID(playerid), 0, 0, alarm, doors, bonnet, boot, objective);
                format(string,sizeof(string), "* %s gasi motor na vozilu.", GetName(playerid));
                ProxDetector(20.0, playerid, string, PROX,PROX,PROX,PROX,PROX);
                format(string, sizeof(string), "~r~o");
                PlayerTextDrawSetString(playerid, BRZINOMER[4][playerid], string);
}
}
}




ako ti nece tako probaj ovo..
    if(newkeys & KEY_FIRE)
    {
        if(IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            new engine, lights, alarm, doors, bonnet, boot, objective, string[100];
            GetVehicleParamsEx(GetPlayerVehicleID(playerid), engine, lights, alarm, doors, bonnet, boot, objective);
            if(VoziloJeBicikla(GetVehicleModel(GetPlayerVehicleID(playerid)))) return 1;
            if(engine == 0 || engine == -1)
            {
                new Float:HP;
                GetVehicleHealth(GetPlayerVehicleID(playerid), HP);
                if(HP < 400.0) return SCM(playerid,-1, ""SIVA"Vozilo vam je previse osteceno, pozovite mehanicara!");
                if(Fuel[GetPlayerVehicleID(playerid)] <= 0) return SCM(playerid,-1, ""SIVA"Nemate goriva u vozilu pa ne mozete upaliti motor!");
                SetVehicleParamsEx(GetPlayerVehicleID(playerid), 1, lights, alarm, doors, bonnet, boot, objective);
                format(string,sizeof(string), "* %s pali motor na vozilu.", GetName(playerid));
                ProxDetector(20.0, playerid, string, PROX,PROX,PROX,PROX,PROX);
                format(string, sizeof(string), "~g~o");
                PlayerTextDrawSetString(playerid, BRZINOMER[4][playerid], string);
            }
        }
    }
   if(newkeys & KEY_YES)
    {
        if(IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            new engine, lights, alarm, doors, bonnet, boot, objective, string[100];
            GetVehicleParamsEx(GetPlayerVehicleID(playerid), engine, lights, alarm, doors, bonnet, boot, objective);
if(engine != 0)
            {
            if(VoziloJeBicikla(GetVehicleModel(GetPlayerVehicleID(playerid)))) return 1;
                SetVehicleParamsEx(GetPlayerVehicleID(playerid), 0, 0, alarm, doors, bonnet, boot, objective);
                format(string,sizeof(string), "* %s gasi motor na vozilu.", GetName(playerid));
                ProxDetector(20.0, playerid, string, PROX,PROX,PROX,PROX,PROX);
                format(string, sizeof(string), "~r~o");
                PlayerTextDrawSetString(playerid, BRZINOMER[4][playerid], string);
}
}
}