bLARGH

CMD:lights(playerid, params[])
{
    if(IsPlayerInAnyVehicle(playerid)) // Yep
    {
        if(GetPlayerState(playerid) == 2) //seat.
        {
            new veh = GetPlayerVehicleID(playerid); //self explanitory
            new engine, lights, alarm, doors, bonnet, boot, objective; //required "new's"
            GetVehicleParamsEx(veh, engine, lights, alarm, doors, bonnet, boot, objective); //get the params.
            switch(lights) //switch statement, easy, most commonly used in dialogs.
            {
                case 0: //if the lights are set to 0
                {
                    new string[128];
                    format(string, sizeof(string), "%s has turned on their headlights"); //string
                    NearByMessage(playerid, ORANGE, string);
                    SetVehicleParamsEx(veh, engine, 1, alarm, doors, bonnet, boot, objective); //Set them
                }
                case 1: //if the lights are set to 1.
                {
                    new string[128];
                    format(string, sizeof(string), "%s has turned off their headlights."); //string
                    NearByMessage(playerid, ORANGE, string);
                    SetVehicleParamsEx(veh, engine, 0, alarm, doors, bonnet, boot, objective); //Set them
                }
            }
        }
        else return SendClientMessage(playerid, WHITE, "Bro, passengers don't control lights."); //returning errors.
    }
    else return SendClientMessage(playerid, WHITE, "Since when the fuck were you in a car?"); //another return
    return 1; //required.
}