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110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
#include <iostream>
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#include "classicactions.h"
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#include "classictimeline.h"
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#include "note.h"
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ClassicTimeline::ClassicTimeline()
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{
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// BPM of METEOR is 170.
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// Length is 1:14
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// I calculated that the time between beats is about 1412162 microseconds
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_timeline.reserve(1000);
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microsec starting_beat_offset = 372162;
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int amount_of_beats = 209;
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microsec interval = 1412162;
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microsec note_input_offset = 412162;
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microsec bpm_iterator = starting_beat_offset;
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microsec bpm_end = starting_beat_offset + (interval * amount_of_beats);
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_visibility_offset = note_input_offset * 12;
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_timeline.emplace_back(new Note(bpm_iterator, note_input_offset, Button::DOWN));
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bpm_iterator += interval;
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_timeline.emplace_back(new Note(bpm_iterator, note_input_offset, Button::LEFT));
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bpm_iterator += interval;
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_timeline.emplace_back(new Note(bpm_iterator, note_input_offset, Button::LEFT));
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bpm_iterator += interval;
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while (bpm_iterator < bpm_end)
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{
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_timeline.emplace_back(new Note(bpm_iterator, note_input_offset));
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bpm_iterator += interval;
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}
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_active_note = nullptr;
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_last_visible_note = _timeline.end();
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_top_note = _timeline.begin();
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_last_visible_note = _top_note;
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_view_manager->initNoteGraphics(*_top_note);
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prepareNotesToDraw(0);
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}
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void Timeline::prepareNotesToDraw(const microsec &music_offset)
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{
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auto note_iterator = _top_note;
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while (((*note_iterator)->offset() - _visibility_offset) <= music_offset)
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{
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++note_iterator;
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if (note_iterator > _last_visible_note)
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_view_manager->initNoteGraphics((*note_iterator));
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}
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_last_visible_note = note_iterator;
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}
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Timeline::~Timeline()
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{
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clear();
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}
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void Timeline::clear()
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{
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for (auto note : _timeline)
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delete note;
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_timeline.clear();
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_top_note = _timeline.end();
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_last_visible_note = _timeline.end();
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_active_note = nullptr;
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Note::resetPrecisionQualifier();
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}
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void Timeline::update(const microsec &music_offset)
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{
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checkCurrentActiveNote(music_offset);
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checkForNextActiveNote(music_offset);
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prepareNotesToDraw(music_offset);
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}
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void Timeline::checkCurrentActiveNote(const microsec &music_offset)
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{
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if (_active_note && !_active_note->isActive(music_offset))
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{
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_active_note = nullptr;
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(*_top_note)->resetSprite();
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++_top_note;
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}
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}
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void Timeline::checkForNextActiveNote(const microsec &music_offset)
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{
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if (!_active_note && (*_top_note)->isActive(music_offset))
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{
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std::cout << "New active note: " << music_offset << '\n';
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_active_note = *_top_note;
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}
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}
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Note* Timeline::fetchActiveNote(const microsec &music_offset) noexcept
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{
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std::cout << "Clicked at: " << music_offset << '\n';
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update(music_offset);
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return _active_note;
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}
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