Make it possible for Stages to add things to the Demo

[libs/demoscene.git] / source / stage.cpp

diff --git a/source/stage.cpp b/source/stage.cpp
index ef5cac44ca5bbdcf8429350e4f98cb35afff7bdb..e1ce3522753683e38d3941db0c2d2df05ab803f7 100644 (file)
--- a/source/stage.cpp
+++ b/source/stage.cpp
@@ -1,6 +1,8 @@
 #include <msp/gl/view.h>
+#include "demo.h"
 #include "stage.h"
 
+using namespace std;
 using namespace Msp;
 
 Stage::Stage():
@@ -12,14 +14,105 @@ Stage::~Stage()
        delete pipeline;
 }
 
+void Stage::add_things(Demo::ThingMap &things, const string &prefix)
+{
+       things[prefix+"camera"] = static_cast<GL::Placeable *>(&camera);
+}
+
+void Stage::add_postprocessor(GL::PostProcessor &pp)
+{
+       pipeline->add_postprocessor(pp);
+}
+
+void Stage::set_camera(const GL::Camera &c)
+{
+       camera.set_object_matrix(c.get_object_matrix());
+       camera.set_up_direction(c.get_up_direction());
+       camera.set_field_of_view(c.get_field_of_view());
+       camera.set_depth_clip(c.get_near_clip(), c.get_far_clip());
+}
+
+
+Stage::UseInView::UseInView():
+       view(0),
+       stage(0)
+{ }
 
 Stage::UseInView::UseInView(GL::View &v, Stage &s):
-       view(v),
-       stage(s)
+       view(&v),
+       stage(&s)
 { }
 
+void Stage::UseInView::validate() const
+{
+       if(!view)
+               throw logic_error("null view");
+       if(!stage)
+               throw logic_error("null stage");
+}
+
 void Stage::UseInView::start(float, float)
 {
-       view.set_camera(&stage.camera_control.get_camera());
-       view.set_content(stage.pipeline);
+       view->set_camera(&stage->camera);
+       view->set_content(stage->pipeline);
+}
+
+
+Stage::SetCamera::SetCamera():
+       stage(0),
+       camera(0)
+{ }
+
+Stage::SetCamera::SetCamera(Stage &s, const GL::Camera &c):
+       stage(&s),
+       camera(&c)
+{ }
+
+void Stage::SetCamera::validate() const
+{
+       if(!stage)
+               throw logic_error("null stage");
+       if(!camera)
+               throw logic_error("null camera");
+}
+
+void Stage::SetCamera::start(float, float)
+{
+       stage->set_camera(*camera);
+}
+
+
+Stage::UseInView::Loader::Loader(UseInView &u, Demo &d):
+       DataFile::DerivedObjectLoader<UseInView, Action::Loader>(u, d)
+{
+       add("stage", &Loader::stage);
+       add("view", &Loader::view);
+}
+
+void Stage::UseInView::Loader::stage(const string &n)
+{
+       obj.stage = &demo.get_thing<Stage>(n);
+}
+
+void Stage::UseInView::Loader::view(const string &n)
+{
+       obj.view = &demo.get_thing<GL::View>(n);
+}
+
+
+Stage::SetCamera::Loader::Loader(SetCamera &s, Demo &d):
+       DataFile::DerivedObjectLoader<SetCamera, Action::Loader>(s, d)
+{
+       add("camera", &Loader::camera);
+       add("stage", &Loader::stage);
+}
+
+void Stage::SetCamera::Loader::stage(const string &n)
+{
+       obj.stage = &demo.get_thing<Stage>(n);
+}
+
+void Stage::SetCamera::Loader::camera(const string &n)
+{
+       obj.camera = &demo.get_resources().get<GL::Camera>(n);
 }