[Mean]

Add this to OnPlayerStateChange to disable drive-by.

pawn Код:

public OnPlayerStateChange( playerid, newstate, oldstate )
{
    if( newstate == PLAYER_STATE_DRIVER || newstate == PLAYER_STATE_PASSENGER )
    {
        SetPlayerArmedWeapon( playerid, 0 );
    }
    return 1;
}

This can fail sometimes, so you can use OnPlayerUpdate. This small code in OnPlayerUpdate will not cause lag:

pawn Код:

public OnPlayerUpdate( playerid )
{
    if( IsPlayerInAnyVehicle( playerid ) ) 
    {
        SetPlayerArmedWeapon( playerid, 0 );
    }
    return 1;
}