Dogcows Code - chaz/yoink/blob - src/Moof/Frustum.hh

   1
   2 /*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
   3 **]  All rights reserved.
   4 *
   5 * vi:ts=4 sw=4 tw=75
   6 *
   7 * Distributable under the terms and conditions of the 2-clause BSD license;
   8 * see the file COPYING for a complete text of the license.
   9 *
  10 **************************************************************************/
  11
  12 #ifndef _MOOF_FRUSTUM_HH_
  13 #define _MOOF_FRUSTUM_HH_
  14
  15 #include <Moof/Math.hh>
  16 #include <Moof/Plane.hh>
  17
  18
  19 namespace Mf {
  20
  21
  22 template <int D> class Aabb;
  23 template <int D> class Sphere;
  24
  25 class Frustum
  26 {
  27         Plane   mPlanes[6]; // left, right, bottom, top, near, far
  28
  29 public:
  30         typedef enum
  31         {
  32                 OUTSIDE         = 0,
  33                 INSIDE          = 1,
  34                 INTERSECT       = 2
  35         } Collision;
  36
  37         Frustum() {}
  38         Frustum(const Matrix4& modelview, const Matrix4& projection)
  39         {
  40                 init(modelview, projection);
  41         }
  42         Frustum(const Matrix4& modelview, Scalar fovy, Scalar aspect,
  43                         Scalar abutting, Scalar distant)
  44         {
  45                 init(modelview, fovy, aspect, abutting, distant);
  46         }
  47
  48         void init(const Matrix4& modelview, const Matrix4& projection);
  49         void init(const Matrix4& modelview, Scalar fovy, Scalar aspect,
  50                           Scalar abutting, Scalar distant);
  51
  52         Collision contains(const Aabb<3>& aabb) const;
  53         Collision contains(const Sphere<3>& sphere) const;
  54 };
  55
  56
  57 } // namespace Mf
  58
  59 #endif // _MOOF_FRUSTUM_HH_
  60