[Pottus]

You'd want

pawn Код:

public OnPlayerText(playerid, text[])
{
    if IsPlayerInRangeOfPoint(x,y,z)
    {
        if(strval(text) == 1) return RepairVehicle;
        else if(strval(text) == 2) return RefuelVehicle;
        else if(strval(text) == 3) return AddNosToVehicle;
    }
    return 1;
}

That is probably the easiest way for you, the first way I mentioned is faster and dynamic but works better when you have lots of points if you have only one point the given solution here is ideal.