Make everything work as before redesign

src/application.cpp

@@ -65,5 +65,7 @@ void Application::update()
 
 void Application::draw()
 {
+    _game_window.clear();
     _game->draw(_game_window);
+    _game_window.display();
 }

src/classicgame/classicgame.cpp

@@ -8,6 +8,9 @@ ClassicGame::ClassicGame() :
     _timeline(std::make_unique<ClassicTimeline>()),
     _view_manager(std::make_unique<ClassicViewManager>())
 {
+    _timeline->fetchVisibleNotes(_view_manager);
+    _timeline->init();
+
     _keys_to_buttons =
     {
         {sf::Keyboard::Up, Button::UP},      // Load from settings

src/classicgame/classicnote.cpp

@@ -1,6 +1,7 @@
 #include "classicnote.h"
 #include "classicsprite.h"
 #include <SFML/Graphics/RenderTarget.hpp>
+#include <iostream>
 
 ClassicNote::ClassicNote(const std::vector<microsec>& intervals, microsec perfect_offset,
                          Action action, const Coordinates& coord) :
@@ -22,12 +23,16 @@ void ClassicNote::draw(sf::RenderTarget& target, sf::RenderStates states) const
 
 ClassicNote::GRADE ClassicNote::input(ClassicInputType&& input_data)
 {
+    auto grade = ClassicNote::GRADE::BAD;
+
     if (input_data == _action)
     {
-        return _evaluator.calculatePrecision(input_data.timestamp());
+        grade = _evaluator.calculatePrecision(input_data.timestamp());
     }
 
-    return ClassicNote::GRADE::BAD;
+    std::cout << "User input: " << static_cast<int>(grade) << "\n";
+
+    return grade;
 }
 
 Action ClassicNote::action() const
@@ -43,7 +48,8 @@ std::shared_ptr<ClassicSprite> ClassicNote::sprite() const noexcept
 void ClassicNote::setSprite(const std::shared_ptr<ClassicSprite>& sprite) noexcept
 {
     _sprite = sprite;
-    _sprite->setCoordinates(_coordinates.x, _coordinates.y);
+    if (_sprite)
+        _sprite->setCoordinates(_coordinates.x, _coordinates.y);
 }
 
 inline const Coordinates& ClassicNote::getCoordinates() const noexcept

src/classicgame/classictimeline.cpp

@@ -14,7 +14,6 @@ ClassicTimeline::ClassicTimeline()
     std::string song_filename = "/home/naiji/METEOR.flac";
 
     _music.openFromFile(song_filename);
-    _music.play();
     _music.setVolume(10);
 
     _timeline.reserve(1000);
@@ -25,7 +24,7 @@ ClassicTimeline::ClassicTimeline()
     microsec note_input_offset = 412162;
     microsec bpm_iterator = starting_beat_offset;
     microsec bpm_end = starting_beat_offset + (interval * amount_of_beats);
-    _visibility_offset = note_input_offset * 12;
+    _visibility_offset = note_input_offset * 6;
 
     _timeline.emplace_back(new ClassicNote({note_input_offset}, bpm_iterator, Action::PRESS_DOWN, {90, 90}));
     bpm_iterator += interval;
@@ -42,14 +41,14 @@ ClassicTimeline::ClassicTimeline()
         bpm_iterator += interval;
     }
 
+    expire(_last_visible_note);
     expire(_active_note);
     _top_note = _timeline.begin();
-    _last_visible_note = _top_note;
 }
 
 void ClassicTimeline::init()
 {
-
+    _music.play();
 }
 
 ClassicTimeline::~ClassicTimeline()
@@ -70,8 +69,7 @@ void ClassicTimeline::clear()
 
 void ClassicTimeline::update()
 {
-    const auto& offset = currentMusicOffset();
-    std::cout << "Upadting at: " << offset << '\n';
+    const microsec& offset = currentMusicOffset();
     checkCurrentActiveNote(offset);
     checkForNextActiveNote(offset);
 }
@@ -100,7 +98,7 @@ ClassicTimeline::Iterator ClassicTimeline::getActiveNote() noexcept
     return _active_note;
 }
 
-bool ClassicTimeline::isExpired(const Iterator &iterator)
+bool ClassicTimeline::isExpired(const Iterator &iterator) const
 {
     return iterator == _timeline.end();
 }
@@ -115,15 +113,40 @@ microsec ClassicTimeline::currentMusicOffset() const
     return _music.getPlayingOffset().asMicroseconds();
 }
 
+void ClassicTimeline::discardExpiredNotes(const std::unique_ptr<ClassicViewManager> &view_manager, const microsec &music_offset)
+{
+    if (_top_note == _timeline.begin())
+        return;
+
+    Iterator past_note = _top_note - 1;
+    std::shared_ptr<ClassicSprite> sprite = (*past_note)->sprite();
+    while (sprite)
+    {                                               // CAREFULLY REWRITE
+        view_manager->resetNoteSprite(*past_note);
+        if (past_note == _timeline.begin())
+            return;
+        --past_note;
+        sprite = (*past_note)->sprite();
+    }
+}
+
+bool ClassicTimeline::isVisiblyClose(const Iterator &iterator, const microsec &music_offset) const
+{
+    return ((*iterator)->offset() - _visibility_offset) <= music_offset;
+}
+
 void ClassicTimeline::fetchVisibleNotes(const std::unique_ptr<ClassicViewManager>& view_manager)
 {
-    Iterator note_iterator = _top_note;
-    auto music_offset = currentMusicOffset();
+    microsec music_offset = currentMusicOffset();
+    discardExpiredNotes(view_manager, music_offset);
 
-    while (((*note_iterator)->offset() - _visibility_offset) <= music_offset)
+    Iterator note_iterator = _top_note;
+    while (isVisiblyClose(note_iterator, music_offset))
     {
-        if (note_iterator > _last_visible_note)
-            view_manager->initNoteSprite(*note_iterator);
+        ClassicNote* note = *note_iterator;
+        if (!note->sprite())
+            view_manager->initNoteSprite(note);
+
         ++note_iterator;
     }
 
@@ -132,7 +155,9 @@ void ClassicTimeline::fetchVisibleNotes(const std::unique_ptr<ClassicViewManager
 
 void ClassicTimeline::drawVisibleNotes(sf::RenderWindow &window) const
 {
-    if (_last_visible_note == _timeline.end() || _top_note > _last_visible_note)
+    bool no_visible_notes = isExpired(_last_visible_note)
+                         || _top_note > _last_visible_note;
+    if (no_visible_notes)
         return;
 
     Iterator note_to_draw = _top_note;

src/classicgame/classictimeline.h

@@ -26,7 +26,7 @@ public:
 
     Iterator getActiveNote() noexcept;
 
-    bool isExpired(const Iterator& iterator);
+    bool isExpired(const Iterator& iterator) const;
     void expire(Iterator& iterator);
 
 private:
@@ -41,6 +41,8 @@ private:
 
     void checkCurrentActiveNote(const microsec &music_offset);
     void checkForNextActiveNote(const microsec &music_offset);
+    void discardExpiredNotes(const std::unique_ptr<ClassicViewManager>& view_manager, const microsec &music_offset);
+    bool isVisiblyClose(const Iterator& iterator, const microsec& music_offset) const;
 
     /* Difference between top and active note is that
      * top note is the note handling input right now

src/classicgame/classicviewmanager.cpp

@@ -2,6 +2,7 @@
 #include "classicsprite.h"
 #include "classicnote.h"
 #include <SFML/Graphics/RectangleShape.hpp>
+#include <iostream>
 
 static constexpr std::size_t RESERVED_SIZE = 20;
 
@@ -62,10 +63,12 @@ void ClassicViewManager::initNoteSprite(ClassicNote* note)
 
     note->setSprite(poll.top());
     poll.pop();
+    std::cout << "Taking a sprite from poll.\n";
 }
 
 void ClassicViewManager::resetNoteSprite(ClassicNote* note)
 {
     _sprite_dispatcher[note->action()].push(note->sprite());
     note->setSprite(nullptr);
+    std::cout << "Returning a sprite to poll.\n";
 }