src/common/3dsparse/ModelMaths.h

   1 ////////////////////////////////////////////////////////////////////////////////
   2 //    Scorched3D (c) 2000-2009
   3 //
   4 //    This file is part of Scorched3D.
   5 //
   6 //    Scorched3D is free software; you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation; either version 2 of the License, or
   9 //    (at your option) any later version.
  10 //
  11 //    Scorched3D is distributed in the hope that it will be useful,
  12 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //    GNU General Public License for more details.
  15 //
  16 //    You should have received a copy of the GNU General Public License
  17 //    along with Scorched3D; if not, write to the Free Software
  18 //    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 ////////////////////////////////////////////////////////////////////////////////
  20
  21 #if !defined(__INCLUDE_ModelMathsh_INCLUDE__)
  22 #define __INCLUDE_ModelMathsh_INCLUDE__
  23
  24 #include <common/Vector.h>
  25
  26 class ModelMaths
  27 {
  28 public:
  29         static void angleQuaternion(const Vector &angles,
  30                 float quaternion[4]);
  31         static void quaternionSlerp(float p[4],
  32                 float q[4], float t, float qt[4]);
  33
  34         static void angleMatrix(
  35                 const Vector &angles, float matrix[3][4]);
  36         static void quaternionMatrix(
  37                 float quaternion[4], float matrix[3][4]);
  38
  39         static void concatTransforms(const float in1[3][4],
  40                 const float in2[3][4], float out[3][4]);
  41         static void vectorIRotate(const Vector &in1,
  42                 const float in2[3][4], Vector &out);
  43         static float dotProduct(const Vector &v1,
  44                 const Vector &v2)
  45         {
  46                 return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
  47         }
  48         static void vectorRotate(const Vector &in1,
  49                 const float in2[3][4], Vector &out)
  50         {
  51                 out[0] = dotProduct(in1, in2[0]);
  52                 out[1] = dotProduct(in1, in2[1]);
  53                 out[2] = dotProduct(in1, in2[2]);
  54         }
  55
  56 private:
  57         ModelMaths();
  58 };
  59
  60 #endif // __INCLUDE_ModelMathsh_INCLUDE__