[Kapone21]

I want:
When a player enter on a bus
if(HaveTicket[playerid] == 0) to eject him
if (HaveTicket[playerid] == 1) to give the driver of bus 100$ and say X has enered on bus

[Konstantinos]

I think that GetPlayerVehicleID returns the vehicle id even if you're passenger. If it does, then this should work:

pawn Code:

public OnPlayerStateChange( playerid, newstate, oldstate )
{
    if( oldstate == PLAYER_STATE_ONFOOT && newstate == PLAYER_STATE_PASSENGER && GetVehicleModel( GetPlayerVehicleID( playerid ) ) == 431 )
    {
        if( HaveTicket[ playerid ] == 0 ) RemovePlayerFromVehicle( playerid );
        else if( HaveTicket[ playerid ] == 1 )
        {
            new
                driver = GetVehicleDriver( GetPlayerVehicleID( playerid ) ),
                passenger_name[ MAX_PLAYER_NAME ],
                msg[ 50 ]
            ;
            if( driver != INVALID_PLAYER_ID ) GivePlayerMoney( driver, 100 );
            // GivePlayerMoney( playerid, -100 ); // Take the money from the passenger as well
            GetPlayerName( playerid, passenger_name, MAX_PLAYER_NAME );
            format( msg, sizeof( msg ), "%s has entered the bus!", passenger_name );
            SendClientMessageToAll( 0xFFFF00FF, msg );
        }
    }
    return 1;
}

stock GetVehicleDriver( vehicleid )
{
     for( new i = 0; i < MAX_PLAYERS; i++ )
     {
          if( !IsPlayerConnected( i ) ) continue;
          if( IsPlayerInVehicle( i, vehicleid ) && GetPlayerState( i ) == PLAYER_STATE_DRIVER ) return i;
     }
     return INVALID_PLAYER_ID;
}