[Threshold]

Example:

pawn Код:

new HasChosenClass[MAX_PLAYERS];

public OnPlayerConnect(playerid)
{
    HasChosenClass[playerid] = 0;
    TogglePlayerSpectating(playerid, 1);
    //Do your little cutscene thing here
    //You might have a SetTimerEx here for when the cutscene ends
    return 1;
}

//When cutscene ends...
    TogglePlayerSpectating(playerid, 0); //OnPlayerSpawn is called.
    return 1;
}

public OnPlayerSpawn(playerid)
{
    if(HasChosenClass[playerid] == 0)
    {
        HasChosenClass[playerid] = 1;
        ForceClassSelection(playerid);
        TogglePlayerSpectating(playerid, true);
        TogglePlayerSpectating(playerid, false);
    }
    return 1;
}

Hopefully this works for you.