1 #include <msp/time/utils.h>
7 Demo::Demo(Graphics::Window &window, Graphics::GLContext &gl_ctx, DataFile::Collection &r):
10 anim_action(anim_player),
16 things["window"] = static_cast<GL::View *>(&view);
18 sequencer.add_static_action(anim_action);
19 sequencer.signal_finished.connect(signal_finished);
30 void Demo::set_fixed_framerate(float fps)
32 frame_interval = Time::sec/fps;
35 void Demo::enable_music()
38 music_source = new AL::Source;
40 streamer = new AL::Streamer(*music_source);
43 void Demo::play_music(const string &fn)
51 music_io = resources.open_raw(fn);
52 music_decoder = AL::SoundDecoder::open_io(*music_io);
53 float beat = sequencer.get_current_beat();
56 float time = beat*60/sequencer.get_beats_per_minute();
57 unsigned bytes_per_sec = music_decoder->get_frequency()*get_unit_size(music_decoder->get_format());
58 music_decoder->seek(time*bytes_per_sec);
60 streamer->play(*music_decoder);
65 Time::TimeStamp t = Time::now();
66 Time::TimeDelta dt = (last_tick ? frame_interval ? frame_interval : t-last_tick : Time::zero);
70 next_frame = t+frame_interval;
78 void Demo::seek(const Time::TimeDelta &pos)
80 sequencer.seek(pos*sequencer.get_beats_per_minute()/Time::min);
84 Demo::AnimationAction::AnimationAction(GL::AnimationPlayer &p):
88 void Demo::AnimationAction::tick(float, float d)
90 player.tick(d*Time::sec);