1 #include <msp/time/utils.h>
8 Demo::Demo(Graphics::Window &window, Graphics::GLContext &gl_ctx, DataFile::Collection &r):
11 anim_action(anim_player),
17 things["window"] = static_cast<GL::View *>(&view);
19 sequencer.add_static_action(anim_action);
20 sequencer.signal_finished.connect(signal_finished);
31 void Demo::add_stage(const std::string &name, Stage &stage)
33 things[name] = &stage;
34 things[name+".camera"] = static_cast<GL::Placeable *>(&stage.get_camera());
37 void Demo::set_fixed_framerate(float fps)
39 frame_interval = Time::sec/fps;
42 void Demo::enable_music()
45 music_source = new AL::Source;
47 streamer = new AL::Streamer(*music_source);
50 void Demo::play_music(const string &fn)
58 music_io = resources.open_raw(fn);
59 music_decoder = AL::SoundDecoder::open_io(*music_io);
60 float beat = sequencer.get_current_beat();
63 float time = beat*60/sequencer.get_beats_per_minute();
64 unsigned bytes_per_sec = music_decoder->get_frequency()*get_unit_size(music_decoder->get_format());
65 music_decoder->seek(time*bytes_per_sec);
67 streamer->play(*music_decoder);
72 Time::TimeStamp t = Time::now();
73 Time::TimeDelta dt = (last_tick ? frame_interval ? frame_interval : t-last_tick : Time::zero);
77 next_frame = t+frame_interval;
85 void Demo::seek(const Time::TimeDelta &pos)
87 sequencer.seek(pos*sequencer.get_beats_per_minute()/Time::min);
91 Demo::AnimationAction::AnimationAction(GL::AnimationPlayer &p):
95 void Demo::AnimationAction::tick(float, float d)
97 player.tick(d*Time::sec);