Dogcows Code - chaz/yoink/blob - src/moof/camera.hh

   1
   2 /*]  Copyright (c) 2009-2011, Charles McGarvey  [*****************************
   3 **]  All rights reserved.
   4 *
   5 * Distributable under the terms and conditions of the 2-clause BSD license;
   6 * see the file COPYING for a complete text of the license.
   7 *
   8 *****************************************************************************/
   9
  10 #ifndef _MOOF_CAMERA_HH_
  11 #define _MOOF_CAMERA_HH_
  12
  13 /**
  14  * \file camera.hh
  15  * Classes related to managing the modelview and perspective matrices.
  16  */
  17
  18 #include <moof/event.hh>
  19 #include <moof/frustum.hh>
  20 #include <moof/math.hh>
  21 #include <moof/rigid_body.hh>
  22
  23
  24 namespace moof {
  25
  26
  27 class camera : public rigid_body3
  28 {
  29 public:
  30
  31         camera()
  32         {
  33                 state_.init();
  34                 prev_state_.init();
  35
  36                 quaternion_rotation_world_y(state_.orientation, SCALAR(0.0));
  37         }
  38
  39         void position(const vector3& position);
  40         void rotation(const quaternion& rotation);
  41
  42         void look_at(const vector3& point);
  43
  44         void projection(const matrix4& projection);
  45         void projection(scalar fovy, scalar aspect, scalar near, scalar far);
  46
  47         const matrix4& modelview() const
  48         {
  49                 return modelview_;
  50         }
  51
  52         const matrix4& projection() const
  53         {
  54                 return projection_;
  55         }
  56
  57         const class frustum& frustum() const
  58         {
  59                 return frustum_;
  60         }
  61
  62         void upload_to_gl(scalar alpha = 0) const;
  63
  64         void update(scalar t, scalar dt);
  65         void draw(scalar alpha = 0) const;
  66         void handle_event(const event& event);
  67
  68 private:
  69
  70         void calculate(scalar alpha) const;
  71
  72         mutable matrix4         modelview_;
  73         matrix4                 projection_;
  74         mutable class frustum   frustum_;
  75 };
  76
  77
  78 } // namespace moof
  79
  80 #endif // _MOOF_CAMERA_HH_
  81