mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-12-27 11:20:54 +00:00
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#include "stdmisc.h"
|
|
#include "nel/misc/cdb_check_sum.h"
|
|
|
|
|
|
namespace NLMISC{
|
|
|
|
/*
|
|
* Constructor
|
|
*/
|
|
|
|
CCDBCheckSum::CCDBCheckSum()
|
|
{
|
|
//arbitrary values
|
|
_Sum = 0;
|
|
_Factor = 55665;
|
|
_Const1 = 52845;
|
|
_Const2 = 22719;
|
|
};
|
|
|
|
///add an uint8 to the sum
|
|
void CCDBCheckSum::add(uint8 el)
|
|
{
|
|
uint32 cipher = (el ^ (_Factor >> 8));
|
|
_Factor = (cipher + _Factor) * _Const1 + _Const2;
|
|
_Sum += cipher;
|
|
}
|
|
|
|
}
|
|
|