Improve and encapsulate DebugHelper, work on Note

.gitignore

@@ -1,6 +1,10 @@
 # This file is used to ignore files which are generated
 # ----------------------------------------------------------------------------
 
+
+SFML*
+CMake*
+
 *~
 *.autosave
 *.a

application.cpp

@@ -20,16 +20,26 @@ void Application::run()
     // BPM of METEOR is 170.
     // Length is 1:14
     // I calculated that the time between beats is about 1412162 microseconds
-    sf::Int64 iter = 1412162 * 25;
+
+    std::string song_filename = "/home/naiji/METEOR.flac";
+    microsec starting_beat_offset = 372162;
+    int amount_of_beats = 209;
+    microsec time_between_beats = 1412162;
+    microsec note_input_offset = 412162;
+    sf::Int64 iter = starting_beat_offset + (time_between_beats * amount_of_beats);
+
+    Note::setPrecisionQualifier(note_input_offset / 2);
+
     while (iter > 0)
     {
-        Note note(iter, iter + 412162);
+        Note note(iter, note_input_offset);
         _timeline.push(note);
-        iter -= 1412162;
+        iter -= time_between_beats;
     }
+
     //    //    //    //    //    //    //    //
 
-    _music.openFromFile("/home/naiji/METEOR.flac");
+    _music.openFromFile(song_filename);
     _music.play();
     _music.setVolume(5);
 
@@ -154,7 +164,7 @@ void Application::onKeyPressed(const sf::Keyboard::Key &key)
 
     if (arrow != Note::Arrow::NONE)
     {
-        _debug.onUserTap();
+        _debug.spawnGreenPulse();
 
         if (!_timeline.empty())
         {
@@ -169,17 +179,29 @@ void Application::update()
 {
     const auto microseconds = _music.getPlayingOffset().asMicroseconds();
 
-    if (!_timeline.empty() && _timeline.top().offset() <= microseconds)
+    // To Do: Here we notice when next note becomes active and ready for user input.
+    //        Here I explicitly calculate its birth time for now.
+    if (!_timeline.empty() && _timeline.top().offset() - 412162 <= microseconds)
     {
-        _debug.onBeat();
+        _debug.spawnBluePulse();
     }
 
-    if (!_timeline.empty() && _timeline.top().deathOffset() <= microseconds)
+    // To do: Actual note offset should pulse only once and the note shouldn't die right after it,
+    //        because there is also "after pulse" offset, like, you know, player can be a little late
+    if (!_timeline.empty() && _timeline.top().offset() <= microseconds)
     {
         _timeline.pop();
-        _debug.onDeath();
+        _debug.spawnRedPulse();
     }
 
+    // To do: Here should be the end of "after pulse" time. When user fucked up all the time and the
+    //        note dies with "Missed" grade.
+    //
+    // if ( . . . _timeline.top().offset() + 412162 <= microseconds)
+    // {
+    //
+    // }
+
     _debug.update(microseconds);
 
     if (_grade.getFillColor().a > 0)

debughelper.cpp

@@ -1,18 +1,11 @@
 #include "debughelper.h"
 
 DebugHelper::DebugHelper(bool init) :
-    _toggled(init)
+    _toggled(init),
+    _red_pulse({0.f, 0.f}, sf::Color(255, 0, 0)),
+    _green_pulse({460.f, 0.f}, sf::Color(0, 255, 0)),
+    _blue_pulse({460.f, 360.f}, sf::Color(0, 100, 255))
 {
-    _bpm_pulse.setSize({460, 360});
-    _bpm_pulse.setOrigin(0.f, 0.f);
-    _bpm_pulse.setFillColor(sf::Color(255, 0, 0, 0));
-    _tap_pulse.setSize({460, 360});
-    _tap_pulse.move(460.f, 0.f);
-    _tap_pulse.setFillColor(sf::Color(0, 255, 0, 0));
-    _death_pulse.setSize({460, 360});
-    _death_pulse.move(460.f, 360.f);
-    _death_pulse.setFillColor(sf::Color(0, 100, 255, 0));
-
     _font.loadFromFile("VeraMono.ttf");
 
     _time_print.setFont(_font);
@@ -26,59 +19,71 @@ void DebugHelper::toggle()
     _toggled = !_toggled;
 }
 
-static bool isVisible(const sf::Shape* shape)
-{
-    return shape->getFillColor().a > 0;
-}
-
-void DebugHelper::update(const sf::Int64 &microseconds)
+void DebugHelper::update(const microsec &microseconds)
 {
     _time_print.setString(std::to_string(microseconds));
 
-    if (isVisible(&_bpm_pulse))
-    {
-        const auto new_alpha = _bpm_pulse.getFillColor().a - 25;
-        _bpm_pulse.setFillColor(sf::Color(255, 0, 0, (new_alpha < 0) ? 0 : new_alpha));
-    }
-
-    if (isVisible(&_tap_pulse))
-    {
-        const auto new_alpha = _tap_pulse.getFillColor().a - 25;
-        _tap_pulse.setFillColor(sf::Color(0, 255, 0, (new_alpha < 0) ? 0 : new_alpha));
-    }
-
-    if (isVisible(&_death_pulse))
-    {
-        const auto new_alpha = _death_pulse.getFillColor().a - 25;
-        _death_pulse.setFillColor(sf::Color(0, 100, 255, (new_alpha < 0) ? 0 : new_alpha));
-    }
+    _red_pulse.fade();
+    _green_pulse.fade();
+    _blue_pulse.fade();
 }
 
 void DebugHelper::drawOn(sf::RenderWindow &game_window) const
 {
     if (_toggled)
     {
-        game_window.draw(_bpm_pulse);
-        game_window.draw(_tap_pulse);
-        game_window.draw(_death_pulse);
+        _red_pulse.drawOn(game_window);
+        _green_pulse.drawOn(game_window);
+        _blue_pulse.drawOn(game_window);
         game_window.draw(_time_print);
     }
 }
 
-void DebugHelper::onUserTap()
+void DebugHelper::spawnGreenPulse()
+{
+    _green_pulse.appear();
+}
+
+void DebugHelper::spawnRedPulse()
+{
+    _red_pulse.appear();
+}
+
+void DebugHelper::spawnBluePulse()
+{
+    _blue_pulse.appear();
+}
+
+DebugHelper::Pulse::Pulse(sf::Vector2f position, sf::Color fill_color)
 {
-    const sf::Uint8 alpha = 255;
-    _tap_pulse.setFillColor(sf::Color(255, 0, 0, alpha));
+    _pulse_shape.setSize({480, 360});
+    _pulse_shape.move(position.x, position.y);
+
+    fill_color.a = 0;
+    _pulse_shape.setFillColor(fill_color);
+}
+
+void DebugHelper::Pulse::appear()
+{
+    auto fill_color = _pulse_shape.getFillColor();
+    fill_color.a = 255;
+    _pulse_shape.setFillColor(fill_color);
 }
 
-void DebugHelper::onBeat()
+void DebugHelper::Pulse::fade()
 {
-    const sf::Uint8 alpha = 255;
-    _bpm_pulse.setFillColor(sf::Color(0, 255, 0, alpha));
+    auto fill_color = _pulse_shape.getFillColor();
+
+    if (fill_color.a == 0)
+        return;
+
+    const auto new_alpha = fill_color.a - 25;
+    fill_color.a = new_alpha < 0 ? 0 : new_alpha;
+
+    _pulse_shape.setFillColor(fill_color);
 }
 
-void DebugHelper::onDeath()
+void DebugHelper::Pulse::drawOn(sf::RenderWindow &game_window) const
 {
-    const sf::Uint8 alpha = 255;
-    _death_pulse.setFillColor(sf::Color(0, 100, 255, alpha));
+    game_window.draw(_pulse_shape);
 }

debughelper.h

@@ -6,25 +6,42 @@
 #include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/Text.hpp>
 
+using microsec = sf::Int64;
+
 class DebugHelper
 {
 public:
     DebugHelper(bool init = true);
 
     void toggle();
-    void update(const sf::Int64& microseconds);
+    void update(const microsec& microseconds);
     void drawOn(sf::RenderWindow &game_window) const;
-    void onUserTap();
-    void onBeat();
-    void onDeath();
+
+    void spawnGreenPulse();
+    void spawnRedPulse();
+    void spawnBluePulse();
 
 private:
     bool _toggled;
-    sf::RectangleShape _bpm_pulse;
-    sf::RectangleShape _tap_pulse;
-    sf::RectangleShape _death_pulse;
     sf::Font _font;
     sf::Text _time_print;
+
+    class Pulse
+    {
+    public:
+        Pulse(sf::Vector2f position, sf::Color fill_color);
+        void appear();
+        void fade();
+
+        void drawOn(sf::RenderWindow &game_window) const;
+
+    private:
+        sf::RectangleShape _pulse_shape;
+    };
+
+    Pulse _red_pulse;
+    Pulse _green_pulse;
+    Pulse _blue_pulse;
 };
 
 #endif // DEBUGHELPER_H

note.cpp

@@ -1,20 +1,26 @@
 #include "note.h"
 #include <cmath>
 
-Note::Note(microsec offset, microsec death_offset, Note::Arrow type) :
+Note::Note(microsec offset, microsec life_span_offset, Note::Arrow type) :
     _offset(offset),
-    _death_offset(death_offset),
+    _start_handling_offset(_offset + life_span_offset),
+    _end_handling_offset(_offset - life_span_offset),
     _type(type)
 {}
 
-microsec Note::offset() const noexcept
+void Note::setPosition(coordinates position)
 {
-    return _offset;
+    _position = position;
+}
+
+coordinates Note::position() const noexcept
+{
+    return _position;
 }
 
-microsec Note::deathOffset() const noexcept
+microsec Note::offset() const noexcept
 {
-    return _death_offset;
+    return _offset;
 }
 
 NoteGrade Note::onTap(Arrow arrow_type, microsec tap_time_stamp) const
@@ -28,12 +34,25 @@ NoteGrade Note::onTap(Arrow arrow_type, microsec tap_time_stamp) const
 
 NoteGrade Note::calculatePrecision(microsec odds) const
 {
-    NoteGrade ret;
-    if (odds < 412162)
+    NoteGrade ret(0, NoteGrade::Rating::BAD);
+
+    if (odds < _precision_qualifier)
     {
-        ret.score = 50;
-        ret.rating = NoteGrade::Rating::GREAT;
+        ret = {50, NoteGrade::Rating::GREAT};
     }
 
     return ret;
 }
+
+bool Note::isActive(microsec music_play_offset) const noexcept
+{
+    return music_play_offset > _start_handling_offset
+        && music_play_offset < _end_handling_offset;
+}
+
+void Note::setPrecisionQualifier(microsec qualifier)
+{
+    _precision_qualifier = qualifier;
+}
+
+microsec Note::_precision_qualifier = 500000; // Default initialization as 0.5 second.

note.h

@@ -2,21 +2,29 @@
 #define NOTE_H
 
 #include <SFML/System/Clock.hpp>
+#include <SFML/System/Vector2.hpp>
+
+////////////////////////////////
 
 using microsec = sf::Int64;
+using coordinates = sf::Vector2i;
 
 struct NoteGrade
 {
-    int score = 0;
+    int score;
     enum class Rating
     {
         WRONG,
         BAD,
         GOOD,
         GREAT
-    } rating = Rating::BAD;
+    } rating;
+
+    NoteGrade(int s, Rating r) : score(s), rating(r) {}
 };
 
+////////////////////////////////
+
 class Note
 {
 public:
@@ -30,17 +38,25 @@ public:
         NONE
     };
 
-    Note(microsec offset, microsec death_offset, Note::Arrow type = Note::Arrow::UP);
+    Note(microsec offset, microsec life_span_offset, Note::Arrow type = Note::Arrow::UP);
 
-    NoteGrade onTap(Arrow arrow_type, microsec tap_time_stamp) const;
+    void setPosition(coordinates position);
+    coordinates position() const noexcept;
     microsec offset() const noexcept;
-    microsec deathOffset() const noexcept;
+
+    NoteGrade onTap(Arrow arrow_type, microsec tap_time_stamp) const;
+    bool isActive(microsec music_play_offset) const noexcept;
+
+    static void setPrecisionQualifier(microsec qualifier);
 
 private:
+    coordinates _position;
     microsec _offset;
-    microsec _death_offset;
+    microsec _start_handling_offset;
+    microsec _end_handling_offset;
     Arrow _type = Arrow::UP;
 
+    static microsec _precision_qualifier;
     NoteGrade calculatePrecision(microsec odds) const;
 };