ryzom/client/src/custom_matrix.cpp

   1 // Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "stdpch.h"
  18 #include "custom_matrix.h"
  19
  20
  21
  22 // *********************************************************
  23 bool CCustomMatrix::set(bool newOn, const NLMISC::CMatrix &newMat)
  24 {
  25         if (newOn)
  26         {
  27                 if (On)
  28                 {
  29                         float srcMatUnpacked[16];
  30                         float destMatUnpacked[16];
  31                         Matrix.get(srcMatUnpacked);
  32                         newMat.get(destMatUnpacked);
  33                         if (std::equal(srcMatUnpacked, srcMatUnpacked + 16, destMatUnpacked)) return false;
  34                 }
  35                 On = newOn;
  36                 Matrix = newMat;
  37                 return true;
  38         }
  39
  40         Matrix = newMat;
  41         if (newOn != On)
  42         {
  43                 On = newOn;
  44                 return true;
  45         }
  46
  47         return false;
  48 }