source/stage.cpp

   1 #include <msp/gl/view.h>
   2 #include "demo.h"
   3 #include "stage.h"
   4
   5 using namespace std;
   6 using namespace Msp;
   7
   8 Stage::Stage():
   9         pipeline(0)
  10 { }
  11
  12 Stage::~Stage()
  13 {
  14         delete pipeline;
  15 }
  16
  17 void Stage::add_postprocessor(GL::PostProcessor &pp)
  18 {
  19         pipeline->add_postprocessor(pp);
  20 }
  21
  22 void Stage::set_camera(const GL::Camera &c)
  23 {
  24         camera.set_object_matrix(c.get_object_matrix());
  25         camera.set_up_direction(c.get_up_direction());
  26         camera.set_field_of_view(c.get_field_of_view());
  27         camera.set_depth_clip(c.get_near_clip(), c.get_far_clip());
  28 }
  29
  30
  31 Stage::UseInView::UseInView():
  32         view(0),
  33         stage(0)
  34 { }
  35
  36 Stage::UseInView::UseInView(GL::View &v, Stage &s):
  37         view(&v),
  38         stage(&s)
  39 { }
  40
  41 void Stage::UseInView::validate() const
  42 {
  43         if(!view)
  44                 throw logic_error("null view");
  45         if(!stage)
  46                 throw logic_error("null stage");
  47 }
  48
  49 void Stage::UseInView::start(float, float)
  50 {
  51         view->set_camera(&stage->camera);
  52         view->set_content(stage->pipeline);
  53 }
  54
  55
  56 Stage::SetCamera::SetCamera():
  57         stage(0),
  58         camera(0)
  59 { }
  60
  61 Stage::SetCamera::SetCamera(Stage &s, const GL::Camera &c):
  62         stage(&s),
  63         camera(&c)
  64 { }
  65
  66 void Stage::SetCamera::validate() const
  67 {
  68         if(!stage)
  69                 throw logic_error("null stage");
  70         if(!camera)
  71                 throw logic_error("null camera");
  72 }
  73
  74 void Stage::SetCamera::start(float, float)
  75 {
  76         stage->set_camera(*camera);
  77 }
  78
  79
  80 Stage::UseInView::Loader::Loader(UseInView &u, Demo &d):
  81         DataFile::DerivedObjectLoader<UseInView, Action::Loader>(u, d)
  82 {
  83         add("stage", &Loader::stage);
  84         add("view", &Loader::view);
  85 }
  86
  87 void Stage::UseInView::Loader::stage(const string &n)
  88 {
  89         obj.stage = &demo.get_thing<Stage>(n);
  90 }
  91
  92 void Stage::UseInView::Loader::view(const string &n)
  93 {
  94         obj.view = &demo.get_thing<GL::View>(n);
  95 }
  96
  97
  98 Stage::SetCamera::Loader::Loader(SetCamera &s, Demo &d):
  99         DataFile::DerivedObjectLoader<SetCamera, Action::Loader>(s, d)
 100 {
 101         add("camera", &Loader::camera);
 102         add("stage", &Loader::stage);
 103 }
 104
 105 void Stage::SetCamera::Loader::stage(const string &n)
 106 {
 107         obj.stage = &demo.get_thing<Stage>(n);
 108 }
 109
 110 void Stage::SetCamera::Loader::camera(const string &n)
 111 {
 112         obj.camera = &demo.get_resources().get<GL::Camera>(n);
 113 }