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61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
#pragma once
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#include <vector>
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#include <memory>
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#include "timeline.h"
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#include <SFML/Audio/Music.hpp>
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class ClassicNote;
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class ClassicViewManager;
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class ClassicTimeline : public Timeline
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{
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public:
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explicit ClassicTimeline();
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virtual ~ClassicTimeline();
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virtual void update() override;
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virtual void init() override;
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virtual void clear() override;
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virtual microsec currentMusicOffset() const override;
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virtual void drawVisibleNotes(sf::RenderWindow& window) const override;
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void fetchVisibleNotes(const std::unique_ptr<ClassicViewManager>& view_manager);
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using Iterator = std::vector<ClassicNote*>::const_iterator;
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Iterator getActiveNote() noexcept;
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bool isExpired(const Iterator& iterator) const;
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void expire(Iterator& iterator);
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private:
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std::vector<ClassicNote*> _timeline;
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Iterator _top_note;
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Iterator _active_note;
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Iterator _last_visible_note;
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microsec _visibility_offset;
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sf::Music _music;
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void checkCurrentActiveNote(const microsec &music_offset);
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void checkForNextActiveNote(const microsec &music_offset);
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void discardExpiredNotes(const std::unique_ptr<ClassicViewManager>& view_manager, const microsec &music_offset);
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bool isVisiblyClose(const Iterator& iterator, const microsec& music_offset) const;
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/* Difference between top and active note is that
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* top note is the note handling input right now
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* OR it's the closest note from current music offset
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* position, not necessarily active. A note stops being top only
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* after dying or being tapped by player, even if it's already
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* past her perfect offset.
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*
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* Meanwhile active note is the note which is currently handling
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* player input for grade.
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*
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* An active note is always top note but a top note
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* is not always active note.
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* */
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};
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