Dogcows Code - chaz/yoink/blob - src/moof/camera.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_CAMERA_HH_
  13 #define _MOOF_CAMERA_HH_
  14
  15 /**
  16  * \file camera.hh
  17  * Classes related to managing the modelview and perspective matrices.
  18  */
  19
  20 #include <moof/event.hh>
  21 #include <moof/frustum.hh>
  22 #include <moof/math.hh>
  23 #include <moof/rigid_body.hh>
  24
  25
  26 namespace moof {
  27
  28
  29 class camera : public rigid_body3
  30 {
  31 public:
  32
  33         camera()
  34         {
  35                 state_.init();
  36                 prev_state_.init();
  37
  38                 quaternion_rotation_world_y(state_.orientation, SCALAR(0.0));
  39         }
  40
  41         void position(const vector3& position);
  42         void rotation(const quaternion& rotation);
  43
  44         void look_at(const vector3& point);
  45
  46         void projection(const matrix4& projection);
  47         void projection(scalar fovy, scalar aspect, scalar near, scalar far);
  48
  49         const matrix4& modelview() const
  50         {
  51                 return modelview_;
  52         }
  53
  54         const matrix4& projection() const
  55         {
  56                 return projection_;
  57         }
  58
  59         const class frustum& frustum() const
  60         {
  61                 return frustum_;
  62         }
  63
  64
  65         void upload_to_gl(scalar alpha = 0) const;
  66
  67         void update(scalar t, scalar dt);
  68         void draw(scalar alpha = 0) const;
  69         void handle_event(const event& event);
  70
  71
  72 private:
  73
  74         void calculate(scalar alpha) const;
  75
  76         mutable matrix4                 modelview_;
  77         matrix4                                 projection_;
  78
  79         mutable class frustum   frustum_;
  80 };
  81
  82
  83 } // namespace moof
  84
  85 #endif // _MOOF_CAMERA_HH_
  86