chore: Inverse if-else tree in Timeline

Reviewed-on: http://dev.udongein.xyz/NaiJi/project-kyoku/pulls/21

.clang-format

@@ -0,0 +1,18 @@
+IndentWidth: 4
+BreakBeforeBraces: Allman
+AlignAfterOpenBracket: Align
+AlignArrayOfStructures: Right
+AllowShortBlocksOnASingleLine: Empty
+AllowShortFunctionsOnASingleLine: None
+BraceWrapping:
+  AfterClass:      true
+  AfterControlStatement: true
+  AfterEnum:       true
+  AfterFunction:   true
+  AfterNamespace:  true
+  AfterObjCDeclaration: true
+  AfterStruct:     true
+  AfterUnion:      true
+  BeforeCatch:     true
+  BeforeElse:      true
+  IndentBraces:    true

.envrc

@@ -0,0 +1,2 @@
+use flake
+watch_file shell.nix

README.md

@@ -0,0 +1,32 @@
+# project-kyoku
+
+I am just trying to create a rhythm game inspired by project-diva
+
+### Initial setup
+
+- Make sure you have a compiler supporting c++17 and cmake
+- Make sure you have [sfml](https://www.sfml-dev.org/) installed, either static or not, just make sure to edit impl/ CMake file, you'll see it.
+- Now clone it
+```
+git clone https://dev.udongein.xyz/NaiJi/project-kyoku
+```
+
+- Go to the project folder
+```
+cd project-kyoku/
+```
+
+- Now build it!
+```
+cmake CMakeLists.txt -B ./build
+cd ./build
+make
+```
+
+### Conventional commits
+
+This project follows [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/). 
+
+`<type>(optional scope): <description>`
+
+Example: `feat(classic-mode): Implement something great`

flake.lock

@@ -0,0 +1,40 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1663491030,
+        "narHash": "sha256-MVsfBhE9US5DvLtBAaTRjwYdv1tLO8xjahM8qLXTgTo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "767542707d394ff15ac1981e903e005ba69528b5",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,14 @@
+{
+  description = "Project Kyoku";
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        {
+          devShell = import ./shell.nix { inherit pkgs; };
+        }
+      );
+}

include/core/area.h

@@ -27,8 +27,10 @@ struct Area
 
     inline kku::Point position() const noexcept
     {
-        return kku::Point{static_cast<float>(left),
-                          static_cast<float>(top) };
+        return kku::Point{
+            static_cast<float>(left),
+            static_cast<float>(top),
+        };
     }
 
     inline void moveBy(const kku::Vector2<T> &vector)
@@ -43,4 +45,4 @@ struct Area
     }
 };
 
-}
+} // namespace kku

include/core/bpmsection.h

@@ -40,4 +40,4 @@ struct BPMSectionComparator
     }
 };
 
-}
+} // namespace kku

include/core/color.h

@@ -14,4 +14,4 @@ struct Color
     unsigned char alpha = 0;
 };
 
-}
+} // namespace kku

include/core/corefactory.h

@@ -2,13 +2,13 @@
 
 #include <memory>
 
-#include "core/music.h"
-#include "core/text.h"
-#include "core/resourceholder.h"
-#include "core/rectangle.h"
-#include "core/vector.h"
 #include "core/line.h"
+#include "core/music.h"
+#include "core/rectangle.h"
+#include "core/resourceholder.h"
 #include "core/sprite.h"
+#include "core/text.h"
+#include "core/vector.h"
 
 namespace kku
 {
@@ -25,8 +25,9 @@ public:
     virtual std::shared_ptr<kku::Text> getText(kku::Font::Id id) const = 0;
     virtual std::shared_ptr<kku::Rectangle> getRectangle() const = 0;
     virtual std::shared_ptr<kku::Line> getLine() const = 0;
-    virtual std::shared_ptr<kku::Sprite> getSprite(kku::GUISprite::Id id) const = 0;
+    virtual std::shared_ptr<kku::Sprite>
+    getSprite(kku::GUISprite::Id id) const = 0;
     virtual kku::Vector2<std::size_t> getRenderSize() const = 0;
 };
 
-}
+} // namespace kku

include/core/editor.h

@@ -1,11 +1,11 @@
 #pragma once
 
-#include <set>
 #include <algorithm>
+#include <set>
 
+#include "core/bpmsection.h"
 #include "core/gameevent.h"
 #include "core/updatedata.h"
-#include "core/bpmsection.h"
 
 namespace kku
 {
@@ -24,12 +24,14 @@ public:
     virtual void display() const = 0;
     virtual void recalculate(const microsec &timestamp) = 0;
 
-    void setBPMSections(const std::set<BPMSection, BPMSectionComparator>& sections) noexcept
+    void setBPMSections(
+        const std::set<BPMSection, BPMSectionComparator> &sections) noexcept
     {
         _bpm_sections = sections;
     }
 
-    void setBPMSections(std::set<BPMSection, BPMSectionComparator>&& sections) noexcept
+    void setBPMSections(
+        std::set<BPMSection, BPMSectionComparator> &&sections) noexcept
     {
         _bpm_sections = std::move(sections);
     }
@@ -46,11 +48,10 @@ public:
 
     bool removeBPMSectionAt(const microsec &offset)
     {
-        auto section_it = std::find_if(_bpm_sections.rbegin(), _bpm_sections.rend(),
+        auto section_it =
+            std::find_if(_bpm_sections.rbegin(), _bpm_sections.rend(),
                          [offset](const auto &section)
-                                       {
-                                           return section.offset_start < offset;
-                                       });
+                         { return section.offset_start < offset; });
 
         if (section_it != _bpm_sections.rend())
         {
@@ -65,11 +66,10 @@ public:
 
     BPMSection getBPMSectionAt(const microsec &offset) const
     {
-        auto section_it = std::find_if(_bpm_sections.rbegin(), _bpm_sections.rend(),
+        auto section_it =
+            std::find_if(_bpm_sections.rbegin(), _bpm_sections.rend(),
                          [offset](const auto &section)
-                                       {
-                                           return section.offset_start < offset;
-                                       });
+                         { return section.offset_start < offset; });
 
         if (section_it != _bpm_sections.rend())
         {
@@ -80,13 +80,10 @@ public:
         return BPMSection();
     }
 
-    void clearBPMSections() noexcept
-    {
-        _bpm_sections.clear();
-    }
+    void clearBPMSections() noexcept { _bpm_sections.clear(); }
 
   protected:
     std::set<BPMSection, BPMSectionComparator> _bpm_sections;
 };
 
-}
+} // namespace kku

include/core/editorcallback.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include "core/systemevent.h"
 #include <string>
 
 namespace kku
@@ -23,4 +22,4 @@ public:
     virtual Metadata getMetadata() const = 0;
 };
 
-}
+} // namespace kku

include/core/functional.h

@@ -8,4 +8,4 @@ namespace kku
 using lambda = std::function<void(void)>;
 using predicate = std::function<bool(void)>;
 
-}
+} // namespace kku

include/core/game.h

@@ -21,4 +21,4 @@ public:
     virtual void display() const = 0;
 };
 
-}
+} // namespace kku

include/core/gameevent.h

@@ -12,4 +12,4 @@ struct GameEvent
     const SystemEvent event;
 };
 
-}
+} // namespace kku

include/core/line.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "core/point.h"
 #include "core/color.h"
+#include "core/point.h"
 
 namespace kku
 {
@@ -18,4 +18,4 @@ public:
     virtual void display() = 0;
 };
 
-}
+} // namespace kku

include/core/music.h

@@ -32,4 +32,4 @@ public:
     virtual kku::microsec getDuration() const = 0;
 };
 
-}
+} // namespace kku

include/core/note.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "core/time.h"
 #include "core/gameevent.h"
+#include "core/time.h"
 
 namespace kku
 {
@@ -9,8 +9,7 @@ namespace kku
 class Note
 {
   public:
-    explicit Note(microsec perfect_offset) :
-        _perfect_offset(perfect_offset) {}
+    explicit Note(microsec perfect_offset) : _perfect_offset(perfect_offset) {}
     virtual ~Note() = default;
 
     virtual bool isActive(const microsec &offset) const = 0;
@@ -50,6 +49,4 @@ struct NotePtrComparator
     }
 };
 
-}
-
-
+} // namespace kku

include/core/point.h

@@ -8,17 +8,11 @@ struct Point
     float x;
     float y;
 
-    constexpr inline explicit Point() noexcept :
-        x(0.), y(0.)
-    {}
+    constexpr inline explicit Point() noexcept : x(0.), y(0.) {}
 
-    constexpr inline explicit Point(int x, int y) noexcept :
-        x(x), y(y)
-    {}
+    constexpr inline explicit Point(int x, int y) noexcept : x(x), y(y) {}
 
-    constexpr inline explicit Point(float x, float y) noexcept :
-        x(x), y(y)
-    {}
+    constexpr inline explicit Point(float x, float y) noexcept : x(x), y(y) {}
 
     constexpr inline Point operator+(const Point &right) const noexcept
     {
@@ -43,4 +37,4 @@ struct Point
     }
 };
 
-}
+} // namespace kku

include/core/precisionevaluator.h

@@ -1,37 +1,34 @@
 #pragma once
 
+#include <cmath>
+#include <iostream>
 #include <numeric>
 #include <type_traits>
 #include <vector>
-#include <cmath>
-#include <iostream>
 
 #include "core/time.h"
 
 namespace kku
 {
 
-template<typename Grade, typename = std::enable_if_t<std::is_enum<Grade>::value>>
+template <typename Grade,
+          typename = std::enable_if_t<std::is_enum<Grade>::value>>
 class PrecisionEvaluator
 {
   public:
-    PrecisionEvaluator(const std::vector<microsec>& intervals, microsec offset) :
-        _offset(offset),
-        _intervals(intervals)
+    PrecisionEvaluator(const std::vector<microsec> &intervals, microsec offset)
+        : _offset(offset), _intervals(intervals)
     {
         _start_handling_offset = _offset - intervals.back();
         _end_handling_offset = _offset + intervals.back();
     }
 
-    inline microsec offset() const noexcept
-    {
-        return _offset;
-    }
+    inline microsec offset() const noexcept { return _offset; }
 
     inline bool isActive(microsec music_play_offset) const noexcept
     {
-        return music_play_offset > _start_handling_offset
-            && music_play_offset < _end_handling_offset;
+        return music_play_offset > _start_handling_offset &&
+               music_play_offset < _end_handling_offset;
     }
 
     Grade calculatePrecision(microsec odds) const
@@ -66,4 +63,4 @@ private:
     const std::vector<microsec> _intervals;
 };
 
-}
+} // namespace kku

include/core/rectangle.h

@@ -24,4 +24,4 @@ public:
     virtual void display() = 0;
 };
 
-}
+} // namespace kku

include/core/resourceholder.h

@@ -1,13 +1,12 @@
 #pragma once
 
-#include <memory>
 #include <map>
+#include <memory>
 
 namespace kku
 {
 
-template <typename Resource, typename Id>
-class ResourceHolder
+template <typename Resource, typename Id> class ResourceHolder
 {
   public:
     inline void load(Id id, std::unique_ptr<Resource> &&resource) noexcept
@@ -49,4 +48,4 @@ namespace GUISprite
 };
 }
 
-}
+} // namespace kku

include/core/sprite.h

@@ -1,6 +1,7 @@
 #pragma once
 
-#include "core/area.h"
+#include "core/point.h"
+#include "core/vector.h"
 
 namespace kku
 {
@@ -17,4 +18,4 @@ public:
     virtual void display() const = 0;
 };
 
-}
+} // namespace kku

include/core/spritecontainer.h

@@ -1,7 +1,9 @@
 #pragma once
+
+#include <map>
 #include <memory>
 #include <stack>
-#include <map>
+
 namespace kku
 {
 
@@ -12,9 +14,8 @@ class SpriteContainer
   public:
     explicit SpriteContainer(std::initializer_list<Type> &&types,
                              const std::shared_ptr<SpriteFactory> &factory,
-                             std::size_t reserve_size = 20) :
-        _sprite_factory(factory),
-        _poll_reserve_size(reserve_size)
+                             std::size_t reserve_size = 20)
+        : _sprite_factory(factory), _poll_reserve_size(reserve_size)
     {
         for (const Type &type : types)
             reallocatePoll(type);
@@ -33,7 +34,8 @@ public:
         return sprite;
     }
 
-    inline void resetSprite(const std::shared_ptr<Sprite> &sprite, Type action) noexcept
+    inline void resetSprite(const std::shared_ptr<Sprite> &sprite,
+                            Type action) noexcept
     {
         sprite->reset();
         _sprite_dispatcher[action].push(sprite);
@@ -59,4 +61,4 @@ private:
     std::size_t _poll_reserve_size;
 };
 
-}
+} // namespace kku

include/core/systemevent.h

@@ -162,10 +162,11 @@ struct SystemEvent
     };
 
     struct None
-    {};
+    {
+    };
 
     Type type = Type::None;
     std::variant<Size, Key, Mouse, None> data;
 };
 
-}
+} // namespace kku

include/core/text.h

@@ -1,9 +1,9 @@
 #pragma once
 
-#include <string>
 #include "core/color.h"
 #include "core/point.h"
 #include "core/vector.h"
+#include <string>
 
 namespace kku
 {
@@ -21,4 +21,4 @@ public:
     virtual void display() = 0;
 };
 
-}
+} // namespace kku

include/core/time.h

@@ -3,20 +3,41 @@
 namespace kku
 {
 
+/// microsec
+///
+/// Primitive alias representing microseconds, which
+/// is the main time measure in-game.
+/// 1 second is 1000000 microseconds.
 using microsec = long long;
 
+/// TimeRange
+///
+/// Object representing a section of time.
+/// To ensure order safety use
+/// static produceValidated function.
 struct TimeRange
 {
     const microsec begin = 0;
     const microsec end = 0;
 
-    constexpr inline explicit TimeRange() noexcept :
-        begin(0), end(0)
-    {}
+    constexpr inline explicit TimeRange() noexcept : begin(0), end(0)
+    {
+    }
 
-    constexpr inline explicit TimeRange(microsec x, microsec y) noexcept :
-        begin(x), end(y)
-    {}
+    constexpr inline explicit TimeRange(microsec x, microsec y) noexcept
+        : begin(x), end(y)
+    {
+    }
+
+    /// produceValidated
+    ///
+    /// Creates an object of TimeRange, but
+    /// also makes sure to place begin and end
+    /// in the right order to avoid confusion.
+    static inline TimeRange produceValidated(microsec x, microsec y) noexcept
+    {
+        return (x < y) ? TimeRange(x, y) : TimeRange(y, x);
+    }
 };
 
-}
+} // namespace kku

include/core/timeline.h

@@ -1,22 +1,23 @@
 #pragma once
 
-#include <set>
-#include <memory>
 #include <algorithm>
+#include <memory>
+#include <set>
 
-#include "core/time.h"
 #include "core/note.h"
+#include "core/time.h"
 
 namespace kku
 {
 
-template <class TNote, class = std::enable_if_t<std::is_base_of<Note, TNote>::value>>
+template <class TNote,
+          class = std::enable_if_t<std::is_base_of<Note, TNote>::value>>
 class Timeline
 {
   public:
-    explicit Timeline() :
-        _current_offset(0)
-    {}
+    explicit Timeline() : _current_offset(0)
+    {
+    }
 
     typedef typename std::set<TNote *>::const_iterator Iterator;
 
@@ -25,8 +26,9 @@ public:
         _current_offset = offset;
         expire(_top_note);
 
-        if (!_timeline.empty())
-        {
+        if (_timeline.empty())
+            return;
+
         Iterator head_iterator = _timeline.begin();
 
         while (!isExpired(head_iterator))
@@ -36,7 +38,8 @@ public:
                 Iterator pre_head = head_iterator;
                 --pre_head;
 
-                    _top_note = !isExpired(pre_head) && (*pre_head)->isActive(offset)
+                _top_note =
+                    !isExpired(pre_head) && (*pre_head)->isActive(offset)
                         ? pre_head
                         : head_iterator;
                 break;
@@ -48,7 +51,6 @@ public:
         if (isExpired(_top_note))
             _top_note = _timeline.begin();
     }
-    }
 
     void setNotes(const std::set<TNote *, NotePtrComparator> &notes)
     {
@@ -72,7 +74,6 @@ public:
         _timeline.insert(notes.begin(), notes.end());
         recalculate(_current_offset);
         update(_current_offset);
-
     }
 
     inline void clear()
@@ -114,8 +115,7 @@ public:
     inline Iterator getNoteBy(const microsec &music_offset) noexcept
     {
         return std::find_if(_timeline.begin(), _timeline.end(),
-                            [music_offset](const auto& note)
-                            {
+                            [music_offset](const auto &note) {
                                 return note->getPerfectOffset() == music_offset;
                             });
     }
@@ -156,8 +156,8 @@ private:
 
         const auto &top_note = *_top_note;
 
-        bool already_played = top_note->getPerfectOffset() < music_offset
-                          && !top_note->isActive(music_offset);
+        bool already_played = top_note->getPerfectOffset() < music_offset &&
+                              !top_note->isActive(music_offset);
 
         if (already_played)
             ++_top_note;
@@ -166,6 +166,4 @@ private:
     Iterator _top_note;
 };
 
-}
-
-
+} // namespace kku

include/core/updatedata.h

@@ -11,6 +11,4 @@ struct UpdateData
     const microsec dt;
 };
 
-}
-
-
+} // namespace kku

include/core/vector.h

@@ -9,8 +9,7 @@ namespace kku
 ///
 /// Meaning an element of a vector space in math.
 /// Don't mistake for std::vector<T>
-template <typename T>
-using Vector2 = std::pair<T, T>;
+template <typename T> using Vector2 = std::pair<T, T>;
 
 template <typename T>
 inline constexpr auto makeVector(T &&l, T &&r) -> Vector2<T>
@@ -18,4 +17,4 @@ inline constexpr auto makeVector(T&& l, T&& r) -> Vector2<T>
     return std::make_pair(std::forward<T>(l), std::forward<T>(r));
 }
 
-}
+} // namespace kku

shell.nix

@@ -0,0 +1,10 @@
+{
+  pkgs     ? import <nixpkgs> {},
+  unstable ? import <nixos-unstable> {},
+}:
+
+with pkgs;
+mkShell {
+  buildInputs = [ sfml ];
+  nativeBuildInputs = [ ccls cmake ];
+}

src/application/include/application/about.h

@@ -7,18 +7,22 @@
 class Group;
 class PushButton;
 
-namespace kku { class Sprite; class Text; }
+namespace kku
+{
+class Sprite;
+class Text;
+} // namespace kku
 
 class About : public GUIState
 {
   public:
-
     struct Callbacks
     {
         kku::lambda onLeaveAboutState;
     };
 
-    explicit About(const std::shared_ptr<kku::CoreFactory>& factory, Callbacks&& callbacks);
+    explicit About(const std::shared_ptr<kku::CoreFactory> &factory,
+                   Callbacks &&callbacks);
     virtual void input(const kku::SystemEvent &event) override;
     virtual void update(const kku::microsec &dt) override;
     virtual void display() const override;
@@ -36,4 +40,3 @@ private:
     std::shared_ptr<Group> _buttons;
     std::shared_ptr<PushButton> _exit_button;
 };
-

src/application/include/application/editorstate.h

@@ -2,24 +2,28 @@
 
 #include "application/state.h"
 #include "core/corefactory.h"
-#include "core/music.h"
 #include "core/functional.h"
+#include "core/music.h"
 
 class BPMCalculator;
 class Group;
 
-namespace kku { class Editor; }
+namespace kku
+{
+class Editor;
+}
 
 class EditorState : public GUIState
 {
   public:
-
     struct Callbacks
     {
         kku::lambda onLeaveEditorState;
     };
 
-    explicit EditorState(const std::shared_ptr<kku::CoreFactory>& core_factory, std::unique_ptr<kku::Editor>&& editor, Callbacks&& callbacks);
+    explicit EditorState(const std::shared_ptr<kku::CoreFactory> &core_factory,
+                         std::unique_ptr<kku::Editor> &&editor,
+                         Callbacks &&callbacks);
     virtual ~EditorState() override;
     virtual void input(const kku::SystemEvent &event) override;
     virtual void update(const kku::microsec &dt) override;
@@ -38,4 +42,3 @@ private:
 
     std::unique_ptr<kku::Editor> _editor;
 };
-

src/application/include/application/gamestate.h

@@ -1,24 +1,24 @@
 #pragma once
 
-#include "state.h"
-#include "core/music.h"
-#include "core/game.h"
 #include "core/corefactory.h"
 #include "core/functional.h"
+#include "core/game.h"
+#include "core/music.h"
+#include "state.h"
 
 class Group;
 
 class GameState : public GUIState
 {
   public:
-
     struct Callbacks
     {
         kku::lambda onLeaveGame;
     };
 
-
-    explicit GameState(const std::shared_ptr<kku::CoreFactory>& core_factory, const std::shared_ptr<kku::Game>& game, Callbacks&& callbacks);
+    explicit GameState(const std::shared_ptr<kku::CoreFactory> &core_factory,
+                       const std::shared_ptr<kku::Game> &game,
+                       Callbacks &&callbacks);
 
     virtual void input(const kku::SystemEvent &event) override;
     virtual void update(const kku::microsec &dt) override;
@@ -35,4 +35,3 @@ private:
     kku::lambda _onEnterGameCallback;
     kku::lambda _onLeaveGameCallback;
 };
-

src/application/include/application/mainmenu.h

@@ -9,7 +9,6 @@ class Group;
 class MainMenu : public GUIState
 {
   public:
-
     struct Callbacks
     {
         kku::lambda onAppendGameState;
@@ -17,7 +16,8 @@ public:
         kku::lambda onAppendAboutState;
     };
 
-    explicit MainMenu(const std::shared_ptr<kku::CoreFactory>& factory, Callbacks&& callbacks);
+    explicit MainMenu(const std::shared_ptr<kku::CoreFactory> &factory,
+                      Callbacks &&callbacks);
     virtual void input(const kku::SystemEvent &event) override;
     virtual void update(const kku::microsec &dt) override;
     virtual void display() const override;
@@ -31,4 +31,3 @@ private:
 
     std::shared_ptr<Group> _buttons;
 };
-

src/application/include/application/state.h

@@ -1,17 +1,17 @@
 #pragma once
 
-#include <stack>
 #include <memory>
+#include <stack>
 
 #include "core/systemevent.h"
-#include "core/vector.h"
 #include "core/time.h"
+#include "core/vector.h"
 
 class GUIState
 {
   public:
-
-    enum Tag {
+    enum Tag
+    {
         SPLASH_SCREEN,
         MAIN_MENU,
         GAME_PICKER,

src/application/shared/application/application.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include <vector>
-#include <memory>
 #include <array>
+#include <memory>
+#include <vector>
 
 #include "../../include/application/state.h" // HOW? WHY DOESN'T "application/state.h" LINK ON BY ITSELF
 #include "core/corefactory.h"

src/application/shared/application/log.h

@@ -0,0 +1,64 @@
+#pragma once
+
+#include <string>
+
+/**
+ * @brief Basic logging class
+ *
+ * Defines helper functions for logging facility. Configured in
+ * Application::init()
+ *
+ */
+class Log
+{
+  public:
+    enum LogLevel
+    {
+        FATAL,
+        ERROR,
+        WARN,
+        INFO,
+        DEBUG,
+    };
+
+    LogLevel level = WARN; ///< Default logging level
+
+    /**
+     * @brief Prints message to stdout
+     *
+     * TODO: write to configurable stream, be it stdout, stderr or even a file
+     *
+     * @param level the message level
+     * @param fmt the message format
+     * @param ... variable parameters
+     */
+    void log(LogLevel level, const std::string &fmt, ...);
+
+  private:
+    inline std::string _getLabel(LogLevel level)
+    {
+        switch (level)
+        {
+        case DEBUG:
+            return "DEBUG";
+        case INFO:
+            return "INFO ";
+        case WARN:
+            return "WARN ";
+        case ERROR:
+            return "ERROR";
+        case FATAL:
+            return "FATAL";
+        default:
+            return "UNK  ";
+        }
+    }
+};
+
+extern Log LOG; /// Global variable :(
+
+#define INFO(fmt, ...) LOG.log(Log::INFO, fmt, ##__VA_ARGS__)
+#define WARN(fmt, ...) LOG.log(Log::WARN, fmt, ##__VA_ARGS__)
+#define ERROR(fmt, ...) LOG.log(Log::ERROR, fmt, ##__VA_ARGS__)
+#define FATAL(fmt, ...) LOG.log(Log::FATAL, fmt, ##__VA_ARGS__)
+#define DEBUG(fmt, ...) LOG.log(Log::DEBUG, fmt, ##__VA_ARGS__)

src/application/src/about.cpp

@@ -1,10 +1,10 @@
 #include "application/about.h"
-#include "widgets/pushbutton.h"
 #include "widgets/group.h"
+#include "widgets/pushbutton.h"
 
-About::About(const std::shared_ptr<kku::CoreFactory>& factory, About::Callbacks&& callbacks) :
-    _callbacks(std::move(callbacks)),
-    _core_factory(factory),
+About::About(const std::shared_ptr<kku::CoreFactory> &factory,
+             About::Callbacks &&callbacks)
+    : _callbacks(std::move(callbacks)), _core_factory(factory),
       _sfml_logo(factory->getSprite(kku::GUISprite::Id::SFML_LOGO)),
       _cryptopp_logo(factory->getSprite(kku::GUISprite::Id::CRYPTOPP_LOGO)),
       _powered_by_text(factory->getText(kku::Font::Id::GUI)),
@@ -42,12 +42,14 @@ void About::enter()
 
     if (!_exit_button)
     {
-        _exit_button = std::make_shared<PushButton>("Return", _core_factory, 48);
+        _exit_button =
+            std::make_shared<PushButton>("Return", _core_factory, 48);
         _exit_button->setCallback(_callbacks.onLeaveAboutState);
         _buttons->addChild(_exit_button);
     }
 
-    _exit_button->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f * 4,
+    _exit_button->setRect(
+        kku::Area<float>{window_width / 3.f, window_height / 7.f * 4,
                          window_width / 3.f, window_height / 7.f});
     _buttons->setVisibility();
 }
@@ -56,4 +58,3 @@ void About::leave()
 {
     _buttons->setVisibility(false);
 }
-

src/application/src/application.cpp

@@ -1,30 +1,41 @@
 #include "application/application.h"
-#include "core/gameevent.h"
+#include "application/log.h"
 #include "core/editor.h"
+#include "core/gameevent.h"
 
-#include "application/mainmenu.h"
-#include "application/gamestate.h"
-#include "application/editorstate.h"
 #include "application/about.h"
+#include "application/editorstate.h"
+#include "application/gamestate.h"
+#include "application/mainmenu.h"
 
 #include "classicmode/classicfactory.h"
 
+Log LOG;
+
 bool Application::init()
 {
+    LOG.level = Log::DEBUG;
+    DEBUG("Initializing Application");
+
     if (!_core_factory)
         return false;
 
-    MainMenu::Callbacks callbacks =
-    {
+    MainMenu::Callbacks callbacks = {
         [&]() { pushState(GUIState::Tag::GAME); },
         [&]() { pushState(GUIState::Tag::EDITOR); },
         [&]() { pushState(GUIState::Tag::ABOUT); },
     };
 
-    const auto main_menu = std::make_shared<MainMenu>(_core_factory, std::move(callbacks));
-    const auto game_state = std::make_shared<GameState>(_core_factory, classic::getGame(_core_factory), GameState::Callbacks{[&](){ popState(); }});
-    const auto editor = std::make_shared<EditorState>(_core_factory, classic::getEditor(_core_factory), EditorState::Callbacks{[&](){ popState(); }});
-    const auto about = std::make_shared<About>(_core_factory, About::Callbacks{[&](){ popState(); }});
+    const auto main_menu =
+        std::make_shared<MainMenu>(_core_factory, std::move(callbacks));
+    const auto game_state = std::make_shared<GameState>(
+        _core_factory, classic::getGame(_core_factory),
+        GameState::Callbacks{[&]() { popState(); }});
+    const auto editor = std::make_shared<EditorState>(
+        _core_factory, classic::getEditor(_core_factory),
+        EditorState::Callbacks{[&]() { popState(); }});
+    const auto about = std::make_shared<About>(
+        _core_factory, About::Callbacks{[&]() { popState(); }});
 
     _states[GUIState::Tag::MAIN_MENU] = main_menu;
     _states[GUIState::Tag::GAME] = game_state;
@@ -48,6 +59,8 @@ void Application::update(const kku::microsec& dt)
 
 void Application::pushState(GUIState::Tag new_state)
 {
+    DEBUG("Pushing state %d", new_state);
+
     if (!_state_stack.empty())
         _state_stack.back()->leave();
 
@@ -57,6 +70,7 @@ void Application::pushState(GUIState::Tag new_state)
 
 void Application::popState()
 {
+    DEBUG("Popping state");
     _state_stack.back()->leave();
     _state_stack.pop_back();
     _state_stack.back()->enter();

src/application/src/editorstate.cpp

@@ -1,24 +1,25 @@
 #include "application/editorstate.h"
+#include "tools/bpmcalculator.h"
+#include "widgets/bpmcalculatorwidget.h"
 #include "widgets/button.h"
+#include "widgets/editorwidget.h"
 #include "widgets/group.h"
 #include "widgets/menubar.h"
 #include "widgets/window.h"
-#include "widgets/editorwidget.h"
-#include "widgets/bpmcalculatorwidget.h"
-#include "tools/bpmcalculator.h"
 
 #include "core/editor.h"
 
 EditorState::EditorState(const std::shared_ptr<kku::CoreFactory> &core_factory,
                          std::unique_ptr<kku::Editor> &&editor,
-                         Callbacks&& callbacks) :
-    _callbacks(std::move(callbacks)),
-    _core_factory(core_factory),
+                         Callbacks &&callbacks)
+    : _callbacks(std::move(callbacks)), _core_factory(core_factory),
       _editor(std::move(editor))
-{}
+{
+}
 
 EditorState::~EditorState()
-{}
+{
+}
 
 void EditorState::input(const kku::SystemEvent &event)
 {
@@ -47,13 +48,15 @@ void EditorState::enter()
 
     _bpm_calculator = std::make_shared<BPMCalculator>();
     auto &bpm_calculator = _bpm_calculator;
-    std::shared_ptr<BPMCalculatorWidget> bpm_widget = std::make_shared<BPMCalculatorWidget>(_bpm_calculator, _core_factory);
+    std::shared_ptr<BPMCalculatorWidget> bpm_widget =
+        std::make_shared<BPMCalculatorWidget>(_bpm_calculator, _core_factory);
 
     auto button_start = std::make_shared<PushButton>("Start", _core_factory);
     auto button_stop = std::make_shared<PushButton>("Stop", _core_factory);
     auto button_apply = std::make_shared<PushButton>("Apply", _core_factory);
 
-    button_start->setCallback([bpm_calculator, button_start, button_stop, &music]()
+    button_start->setCallback(
+        [bpm_calculator, button_start, button_stop, &music]()
         {
             music->play();
             bpm_calculator->start();
@@ -61,7 +64,8 @@ void EditorState::enter()
             button_stop->setVisibility(true);
         });
 
-    button_stop->setCallback([bpm_calculator, button_start, button_stop, &music]()
+    button_stop->setCallback(
+        [bpm_calculator, button_start, button_stop, &music]()
         {
             music->stop();
             bpm_calculator->stop();
@@ -69,7 +73,8 @@ void EditorState::enter()
             button_stop->setVisibility(false);
         });
 
-    button_apply->setCallback([&editor, bpm_calculator]()
+    button_apply->setCallback(
+        [&editor, bpm_calculator]()
         {
             kku::BPMSection section;
             const auto &info = bpm_calculator->fetchApproximatedInfo();
@@ -85,7 +90,8 @@ void EditorState::enter()
     bpm_widget_init.stop = button_stop;
     bpm_widget_init.apply = button_apply;
     bpm_widget_init.start = button_start;
-    bpm_widget_init.current_time = [&music]() -> kku::microsec { return music->fetchOffset(); };
+    bpm_widget_init.current_time = [&music]() -> kku::microsec
+    { return music->fetchOffset(); };
 
     bpm_widget->init(std::move(bpm_widget_init));
     const auto bpm_widget_callback = [&group, bpm_widget = bpm_widget, &music]()
@@ -100,15 +106,18 @@ void EditorState::enter()
 
     auto menu_bar = std::make_shared<MenuBar>(_core_factory);
 
-    auto bpm_button = std::make_shared<PushButton>("Calculate BPM", _core_factory);
+    auto bpm_button =
+        std::make_shared<PushButton>("Calculate BPM", _core_factory);
 
-    bpm_button->setCallback([&group, bpm_widget=bpm_widget]()
+    bpm_button->setCallback(
+        [&group, bpm_widget = bpm_widget]()
         {
             group->blockBy(bpm_widget);
             bpm_widget->setVisibility(true);
         });
 
-    bpm_widget->setRect(kku::Area<float>{render_size.first / 3.f, render_size.second / 3.f,
+    bpm_widget->setRect(
+        kku::Area<float>{render_size.first / 3.f, render_size.second / 3.f,
                          render_size.first / 3.f, render_size.second / 3.f});
 
     bpm_widget->addBarButton("X", bpm_widget_callback);
@@ -120,9 +129,11 @@ void EditorState::enter()
     auto test_menu_3 = std::make_shared<MenuDrop>(_core_factory);
     test_menu_3->setRect(kku::Area<float>{0., 0., 200., 27. * 5.});
 
-    auto test_cascade_button = std::make_shared<CascadeMenuButton>("Show submenu", _core_factory);
+    auto test_cascade_button =
+        std::make_shared<CascadeMenuButton>("Show submenu", _core_factory);
 
-    auto test_cascade_button_2 = std::make_shared<CascadeMenuButton>("Show submenu 2", _core_factory);
+    auto test_cascade_button_2 =
+        std::make_shared<CascadeMenuButton>("Show submenu 2", _core_factory);
 
     auto quit_button = std::make_shared<PushButton>("Quit", _core_factory);
     quit_button->setCallback(_callbacks.onLeaveEditorState);
@@ -150,19 +161,18 @@ void EditorState::enter()
     menu_bar->setVisibility(true);
 
     EditorWidget::Callbacks callbacks;
-    callbacks.onDisplay = [&editor]()
-    {
-        editor->display();
-    };
+    callbacks.onDisplay = [&editor]() { editor->display(); };
 
     callbacks.onInput = [&editor, &music](const kku::SystemEvent &event)
     {
-        if (event.type == kku::SystemEvent::Type::KeyRelease
-        &&  std::get<kku::SystemEvent::Key>(event.data).view == kku::SystemEvent::Key::Code::Space)
+        if (event.type == kku::SystemEvent::Type::KeyRelease &&
+            std::get<kku::SystemEvent::Key>(event.data).view ==
+                kku::SystemEvent::Key::Code::Space)
             music->isPlaying() ? music->pause() : music->play();
         else if (event.type == kku::SystemEvent::Type::MouseWheelScroll)
         {
-            const auto& up = std::get<kku::SystemEvent::Mouse>(event.data).scrolled_up;
+            const auto &up =
+                std::get<kku::SystemEvent::Mouse>(event.data).scrolled_up;
             music->moveOffset(up ? 500000 : -500000);
             editor->recalculate(music->fetchOffset());
         }
@@ -170,8 +180,7 @@ void EditorState::enter()
             editor->input(kku::GameEvent{music->fetchOffset(), event});
     };
 
-    callbacks.onUpdate = [&editor, &music](const kku::microsec& dt)
-    {
+    callbacks.onUpdate = [&editor, &music](const kku::microsec &dt) {
         editor->update(kku::UpdateData{music->fetchOffset(), dt});
     };
 

src/application/src/gamestate.cpp

@@ -4,9 +4,10 @@
 
 #include "core/game.h"
 
-GameState::GameState(const std::shared_ptr<kku::CoreFactory>& core_factory, const std::shared_ptr<kku::Game>& game, Callbacks&& callbacks) :
-    _core_factory(core_factory),
-    _game(game),
+GameState::GameState(const std::shared_ptr<kku::CoreFactory> &core_factory,
+                     const std::shared_ptr<kku::Game> &game,
+                     Callbacks &&callbacks)
+    : _core_factory(core_factory), _game(game),
       _onLeaveGameCallback(callbacks.onLeaveGame)
 {
 }

src/application/src/log.cpp

@@ -0,0 +1,27 @@
+#include <cstdarg>
+#include <iostream>
+#include <vector>
+
+#include "application/log.h"
+
+void Log::log(LogLevel level, const std::string &fmt, ...)
+{
+    if (level > this->level)
+        return;
+
+    va_list args;
+
+    // First va_start: count how many characters are needed for formatting
+    va_start(args, fmt);
+    size_t len = std::vsnprintf(NULL, 0, fmt.c_str(), args);
+    va_end(args);
+
+    std::vector<char> buf(len + 1);
+
+    // Second va_start: actually write formatted message to buffer
+    va_start(args, fmt);
+    std::vsnprintf(&buf[0], len + 1, fmt.c_str(), args);
+    va_end(args);
+
+    std::cout << this->_getLabel(level) << " " << &buf[0] << std::endl;
+}

src/application/src/mainmenu.cpp

@@ -1,10 +1,10 @@
 #include "application/mainmenu.h"
-#include "widgets/pushbutton.h"
 #include "widgets/group.h"
+#include "widgets/pushbutton.h"
 
-MainMenu::MainMenu(const std::shared_ptr<kku::CoreFactory>& factory, MainMenu::Callbacks&& callbacks) :
-    _callbacks(std::move(callbacks)),
-    _core_factory(factory),
+MainMenu::MainMenu(const std::shared_ptr<kku::CoreFactory> &factory,
+                   MainMenu::Callbacks &&callbacks)
+    : _callbacks(std::move(callbacks)), _core_factory(factory),
       _buttons(std::make_shared<Group>())
 {
 }
@@ -30,18 +30,24 @@ void MainMenu::enter()
     const float window_width = render_size.first;
     const float window_height = render_size.second;
 
-    auto button_start = std::make_shared<PushButton>("Start", _core_factory, 48);
-    button_start->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f,
+    auto button_start =
+        std::make_shared<PushButton>("Start", _core_factory, 48);
+    button_start->setRect(
+        kku::Area<float>{window_width / 3.f, window_height / 7.f,
                          window_width / 3.f, window_height / 7.f});
     button_start->setCallback(_callbacks.onAppendGameState);
 
-    auto button_editor = std::make_shared<PushButton>("Editor", _core_factory, 48);
-    button_editor->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f * 3,
+    auto button_editor =
+        std::make_shared<PushButton>("Editor", _core_factory, 48);
+    button_editor->setRect(
+        kku::Area<float>{window_width / 3.f, window_height / 7.f * 3,
                          window_width / 3.f, window_height / 7.f});
     button_editor->setCallback(_callbacks.onAppendEditorState);
 
-    auto button_about = std::make_shared<PushButton>("About", _core_factory, 48);
-    button_about->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f * 5,
+    auto button_about =
+        std::make_shared<PushButton>("About", _core_factory, 48);
+    button_about->setRect(
+        kku::Area<float>{window_width / 3.f, window_height / 7.f * 5,
                          window_width / 3.f, window_height / 7.f});
     button_about->setCallback(_callbacks.onAppendAboutState);
 
@@ -56,4 +62,3 @@ void MainMenu::leave()
 {
     _buttons->setVisibility(false);
 }
-

src/application/src/widgets/bpmcalculatorwidget.cpp

@@ -1,14 +1,14 @@
 #include "bpmcalculatorwidget.h"
-#include "tools/bpmcalculator.h"
 #include "core/editor.h"
+#include "tools/bpmcalculator.h"
 
 #include <iostream>
 
-BPMCalculatorWidget::BPMCalculatorWidget(const std::shared_ptr<BPMCalculator>& bpm_calculator, const std::shared_ptr<kku::CoreFactory>& factory) :
-    Window(factory, "BPM Calculation"),
-    _bpm_calculator(bpm_calculator),
-    _slider(std::make_shared<BPMSlider>(factory)),
-    _core_factory(factory),
+BPMCalculatorWidget::BPMCalculatorWidget(
+    const std::shared_ptr<BPMCalculator> &bpm_calculator,
+    const std::shared_ptr<kku::CoreFactory> &factory)
+    : Window(factory, "BPM Calculation"), _bpm_calculator(bpm_calculator),
+      _slider(std::make_shared<BPMSlider>(factory)), _core_factory(factory),
       _ticked(false)
 {
     _bpm_value = _core_factory->getText(kku::Font::Id::GUI);
@@ -29,7 +29,8 @@ void BPMCalculatorWidget::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::KeyPress:
     {
-        if (std::get<kku::SystemEvent::Key>(event.data).view == kku::SystemEvent::Key::Code::Space)
+        if (std::get<kku::SystemEvent::Key>(event.data).view ==
+            kku::SystemEvent::Key::Code::Space)
         {
             _bpm_calculator->click(_current_time());
         }
@@ -49,8 +50,11 @@ void BPMCalculatorWidget::update(const kku::microsec& dt)
     {
         _bpm_value->setString(std::to_string(static_cast<int>(beat_info.BPM)));
 
-        const kku::microsec until_beat = _bpm_calculator->fetchTimeUntilNextBeat(_current_time());
-        const auto time_relation = static_cast<long double>(beat_info.interval) / static_cast<long double>(until_beat);
+        const kku::microsec until_beat =
+            _bpm_calculator->fetchTimeUntilNextBeat(_current_time());
+        const auto time_relation =
+            static_cast<long double>(beat_info.interval) /
+            static_cast<long double>(until_beat);
         const auto slider_path_left = _slider->getRect().width / time_relation;
         if (slider_path_left < 50)
         {
@@ -83,22 +87,30 @@ void BPMCalculatorWidget::setRect(const kku::Area<float>& rect)
 {
     Window::setRect(rect);
     _slider->setRect(kku::Area<float>{0, 0, rect.width / 8 * 6, 100});
-    _slider->setPosition(kku::Point{_window_content->getRect().left + rect.width / 8,
+    _slider->setPosition(
+        kku::Point{_window_content->getRect().left + rect.width / 8,
                    _window_content->getRect().top + rect.height / 8 * 3});
 
     _button_start->setRect(kku::Area<float>{0, 0, rect.width / 10 * 3, 30});
-    _button_start->setPosition(kku::Point{_window_content->getRect().left + rect.width / 7,
-                                          _window_content->getRect().top + _window_content->getRect().height - 40});
+    _button_start->setPosition(
+        kku::Point{_window_content->getRect().left + rect.width / 7,
+                   _window_content->getRect().top +
+                       _window_content->getRect().height - 40});
 
     _button_stop->setRect(kku::Area<float>{0, 0, rect.width / 10 * 3, 30});
-    _button_stop->setPosition(kku::Point{_window_content->getRect().left + rect.width / 7,
-                                         _window_content->getRect().top + _window_content->getRect().height - 40});
+    _button_stop->setPosition(
+        kku::Point{_window_content->getRect().left + rect.width / 7,
+                   _window_content->getRect().top +
+                       _window_content->getRect().height - 40});
 
     _button_apply->setRect(kku::Area<float>{0, 0, rect.width / 10 * 3, 30});
-    _button_apply->setPosition(kku::Point{_window_content->getRect().left + 50 + (2 * (rect.width / 7)),
-                                _window_content->getRect().top + _window_content->getRect().height - 40});
+    _button_apply->setPosition(kku::Point{
+        _window_content->getRect().left + 50 + (2 * (rect.width / 7)),
+        _window_content->getRect().top + _window_content->getRect().height -
+            40});
 
-    _bpm_value->setPosition(kku::Point{_window_content->getRect().left + rect.width / 8,
+    _bpm_value->setPosition(
+        kku::Point{_window_content->getRect().left + rect.width / 8,
                    _window_content->getRect().top + rect.height / 8});
 }
 

src/application/src/widgets/bpmslider.cpp

@@ -29,10 +29,8 @@ void BPMSlider::display() const
 void BPMSlider::setRect(const kku::Area<float> &rect)
 {
     _slider_background->setRect(rect);
-    _slider_tick->setRect(kku::Area<float>{rect.left,
-                                           rect.top,
-                                           rect.width / 30.f,
-                                           rect.height});
+    _slider_tick->setRect(
+        kku::Area<float>{rect.left, rect.top, rect.width / 30.f, rect.height});
 }
 
 void BPMSlider::setPosition(const kku::Point &position)
@@ -64,6 +62,7 @@ kku::Point BPMSlider::getPosition() const
 
 void BPMSlider::setTickPosition(float x_position)
 {
-    _slider_tick->setPosition(kku::Point{_slider_background->getPosition().x + x_position,
+    _slider_tick->setPosition(
+        kku::Point{_slider_background->getPosition().x + x_position,
                    _slider_tick->getPosition().y});
 }

src/application/src/widgets/button.cpp

@@ -1,8 +1,10 @@
 #include "button.h"
 #include <iostream>
 
-Button::Button(const std::string &text, const std::shared_ptr<kku::CoreFactory>& factory, unsigned int font_size) :
-    _core_factory(factory)
+Button::Button(const std::string &text,
+               const std::shared_ptr<kku::CoreFactory> &factory,
+               unsigned int font_size)
+    : _core_factory(factory)
 {
     _button_text = _core_factory->getText(kku::Font::Id::GUI);
     _button_text->setString(text);
@@ -29,8 +31,7 @@ void Button::display() const
 void Button::setRect(const kku::Area<float> &rect)
 {
     _button_content->setRect(rect);
-    _button_text->setPosition(kku::Point{rect.left + 5,
-                                        rect.top  + 5});
+    _button_text->setPosition(kku::Point{rect.left + 5, rect.top + 5});
 }
 
 void Button::setPosition(const kku::Point &position)

src/application/src/widgets/cascademenubutton.cpp

@@ -1,8 +1,10 @@
 #include "cascademenubutton.h"
 #include "menudrop.h"
 
-CascadeMenuButton::CascadeMenuButton(const std::string& text, const std::shared_ptr<kku::CoreFactory>& factory, unsigned int font_size) :
-    Button(text, factory, font_size)
+CascadeMenuButton::CascadeMenuButton(
+    const std::string &text, const std::shared_ptr<kku::CoreFactory> &factory,
+    unsigned int font_size)
+    : Button(text, factory, font_size)
 {
     _color_idle = kku::Color{230, 230, 230, 255};
     _color_hover = kku::Color{84, 158, 253, 255};
@@ -23,7 +25,8 @@ void CascadeMenuButton::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MouseMove:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (isUnderMouse(position))
         {
             _button_content->setColor(_color_hover);
@@ -40,7 +43,6 @@ void CascadeMenuButton::input(const kku::SystemEvent& event)
         }
         break;
     }
-
     }
 }
 
@@ -65,12 +67,14 @@ void CascadeMenuButton::resetRect()
 {
     if (_submenu)
     {
-        _submenu->setPosition(kku::Point{_button_content->getPosition().x + _button_content->getRect().width,
+        _submenu->setPosition(kku::Point{_button_content->getPosition().x +
+                                             _button_content->getRect().width,
                                          _button_content->getPosition().y});
     }
 }
 
-void CascadeMenuButton::setFillColors(kku::Color&& idle_color, kku::Color&& hover_color)
+void CascadeMenuButton::setFillColors(kku::Color &&idle_color,
+                                      kku::Color &&hover_color)
 {
     _color_idle = idle_color;
     _color_hover = hover_color;

src/application/src/widgets/editorwidget.cpp

@@ -1,11 +1,12 @@
 #include "editorwidget.h"
 #include "core/editor.h"
 
-EditorWidget::EditorWidget(Callbacks&& callbacks) :
-    _input(std::move(callbacks.onInput)),
+EditorWidget::EditorWidget(Callbacks &&callbacks)
+    : _input(std::move(callbacks.onInput)),
       _update(std::move(callbacks.onUpdate)),
       _draw(std::move(callbacks.onDisplay))
-{}
+{
+}
 
 void EditorWidget::input(const kku::SystemEvent &event)
 {

src/application/src/widgets/group.cpp

@@ -46,10 +46,5 @@ kku::Area<float> Group::getRect() const
 
 kku::Point Group::getPosition() const
 {
-    return kku::Point
-    {
-        _rect.top,
-        _rect.left
-    };
+    return kku::Point{_rect.top, _rect.left};
 }
-

src/application/src/widgets/menubar.cpp

@@ -1,10 +1,8 @@
 #include "menubar.h"
 
-MenuBar::MenuBar(const std::shared_ptr<kku::CoreFactory>& factory) :
-    _core_factory(factory),
-    _bar_rect(factory->getRectangle()),
-    _amount_buttons(0),
-    _button_width(170)
+MenuBar::MenuBar(const std::shared_ptr<kku::CoreFactory> &factory)
+    : _core_factory(factory), _bar_rect(factory->getRectangle()),
+      _amount_buttons(0), _button_width(170)
 {
     _bar_rect->setColor(kku::Color{88, 57, 107, 255});
 }
@@ -18,7 +16,8 @@ void MenuBar::input(const kku::SystemEvent &event)
 
     case kku::SystemEvent::Type::MouseRelease:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (!isUnderMouse(position))
         {
             for (auto &submenu : _submenus)
@@ -72,29 +71,29 @@ bool MenuBar::isUnderMouse(const kku::Point& position) const
 
     bool submenus_under_mouse = std::any_of(_children.begin(), _children.end(),
                                             [p = position](const auto &child)
-                                            {
-                                                return child->isUnderMouse(p);
-                                            });
+                                            { return child->isUnderMouse(p); });
 
     return bar_under_mouse || submenus_under_mouse;
 }
 
-void MenuBar::addRootSubMenu(std::string name, const std::shared_ptr<MenuDrop>& submenu)
+void MenuBar::addRootSubMenu(std::string name,
+                             const std::shared_ptr<MenuDrop> &submenu)
 {
     const auto new_button = std::make_shared<PushButton>(name, _core_factory);
 
     std::size_t current_index = _amount_buttons;
-    new_button->setRect(kku::Area<float>{static_cast<float>(current_index * _button_width),
-                                         0.f,
-                                         static_cast<float>(_button_width),
-                                         _bar_rect->getRect().height});
-    new_button->setCallback([submenu=submenu]()
+    new_button->setRect(kku::Area<float>{
+        static_cast<float>(current_index * _button_width), 0.f,
+        static_cast<float>(_button_width), _bar_rect->getRect().height});
+    new_button->setCallback(
+        [submenu = submenu]()
         {
             submenu->setVisibility(true);
             submenu->lock();
         });
 
-    submenu->setPosition(kku::Point{static_cast<float>(current_index * _button_width),
+    submenu->setPosition(
+        kku::Point{static_cast<float>(current_index * _button_width),
                    _bar_rect->getRect().height});
 
     new_button->setColors(kku::Color{171, 141, 189, 255},

src/application/src/widgets/menudrop.cpp

@@ -1,10 +1,8 @@
 #include "menudrop.h"
 #include "core/corefactory.h"
 
-MenuDrop::MenuDrop(const std::shared_ptr<kku::CoreFactory>& factory) :
-    _is_locked(false),
-    _button_height(27),
-    _button_index(0)
+MenuDrop::MenuDrop(const std::shared_ptr<kku::CoreFactory> &factory)
+    : _is_locked(false), _button_height(27), _button_index(0)
 {
     _is_visible = false;
     _content_rect = factory->getRectangle();
@@ -25,7 +23,8 @@ void MenuDrop::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MouseRelease:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (isUnderMouse(position))
         {
             setVisibility(false);
@@ -40,7 +39,8 @@ void MenuDrop::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MouseMove:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (!isUnderMouse(position))
         {
             if (!isLocked() && !hasActiveSubmenus())
@@ -55,9 +55,7 @@ bool MenuDrop::hasActiveSubmenus() const
 {
     return std::any_of(_submenus.begin(), _submenus.end(),
                        [](const auto &submenu) -> bool
-                       {
-                           return submenu->_is_visible;
-                       });
+                       { return submenu->_is_visible; });
 }
 
 void MenuDrop::update(const kku::microsec &dt)
@@ -111,7 +109,8 @@ void MenuDrop::addPushButton(const std::shared_ptr<PushButton>& button)
     add(button);
 }
 
-void MenuDrop::addCascadeButton(const std::shared_ptr<CascadeMenuButton>& button)
+void MenuDrop::addCascadeButton(
+    const std::shared_ptr<CascadeMenuButton> &button)
 {
     auto &submenu = button->submenu();
     _submenus.emplace_back(submenu);
@@ -129,10 +128,10 @@ void MenuDrop::add(const std::shared_ptr<Widget> &widget)
 {
     const auto &parent_rect = _content_rect->getRect();
 
-    widget->setRect(kku::Area<float>{parent_rect.left,
+    widget->setRect(kku::Area<float>{
+        parent_rect.left,
         parent_rect.top + (parent_rect.height * _button_index),
-                                     parent_rect.width,
-                                     static_cast<float>(_button_height)});
+        parent_rect.width, static_cast<float>(_button_height)});
 
     addChild(widget);
     ++_button_index;

src/application/src/widgets/pushbutton.cpp

@@ -1,8 +1,9 @@
 #include "pushbutton.h"
 
-PushButton::PushButton(const std::string& text, const std::shared_ptr<kku::CoreFactory>& factory, unsigned int font_size) :
-    Button(text, factory, font_size),
-    _pressed(false)
+PushButton::PushButton(const std::string &text,
+                       const std::shared_ptr<kku::CoreFactory> &factory,
+                       unsigned int font_size)
+    : Button(text, factory, font_size), _pressed(false)
 {
     _color_idle = kku::Color{230, 230, 230, 255};
     _color_pressed = kku::Color{200, 200, 200, 255};
@@ -19,7 +20,8 @@ void PushButton::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MousePress:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (isUnderMouse(position))
         {
             _pressed = true;
@@ -32,7 +34,8 @@ void PushButton::input(const kku::SystemEvent& event)
     {
         if (_pressed)
         {
-            const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+            const auto position =
+                std::get<kku::SystemEvent::Mouse>(event.data).position;
             _button_content->setColor(_color_idle);
             _pressed = false;
             if (isUnderMouse(position))

src/application/src/widgets/window.cpp

@@ -1,8 +1,8 @@
 #include "window.h"
 
-Window::Window(const std::shared_ptr<kku::CoreFactory>& factory, const std::string& title) :
-    _core_factory(factory),
-    _is_dragging(false)
+Window::Window(const std::shared_ptr<kku::CoreFactory> &factory,
+               const std::string &title)
+    : _core_factory(factory), _is_dragging(false)
 {
     _bar_title = _core_factory->getText(kku::Font::Id::GUI);
     _bar_title->setString(title);
@@ -27,7 +27,8 @@ void Window::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MousePress:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (_bar->contains(position))
         {
             _is_dragging = true;
@@ -42,7 +43,8 @@ void Window::input(const kku::SystemEvent& event)
 
     case kku::SystemEvent::Type::MouseMove:
     {
-        const auto position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+        const auto position =
+            std::get<kku::SystemEvent::Mouse>(event.data).position;
         if (_is_dragging)
         {
             float x_mouse_diff = position.x - _previous_click_position.x;
@@ -80,8 +82,7 @@ void Window::setRect(const kku::Area<float>& rect)
     kku::Area<float> bar_rect = {rect.left, rect.top, rect.width, 30};
     _bar->setRect(bar_rect);
 
-    _bar_title->setPosition(kku::Point{rect.left + 5,
-                                      rect.top  + 5});
+    _bar_title->setPosition(kku::Point{rect.left + 5, rect.top + 5});
 }
 
 void Window::setPosition(const kku::Point &position)
@@ -114,8 +115,7 @@ void Window::addBarButton(const std::string &text, kku::lambda callback)
 
     auto b = std::make_shared<PushButton>(text, _core_factory, 20);
     b->setCallback(callback);
-    b->setRect({area.left + area.width - 35,
-                area.top, 30, 30});
+    b->setRect({area.left + area.width - 35, area.top, 30, 30});
 
     Widget::addChild(b);
 }

src/impl/sfml/application/applicationsfml.cpp

@@ -1,13 +1,13 @@
 #include "applicationsfml.h"
-#include "sfml/corefactorysfml.h"
 #include "sfml/application/inputconvertersfml.h"
+#include "sfml/corefactorysfml.h"
 
 #include <SFML/System/Clock.hpp>
 
 const sf::Time TIME_PER_FRAME = sf::seconds(1.f / 90.f);
 
-ApplicationSFML::ApplicationSFML(sf::RenderWindow * const render_window) :
-    _render_window(render_window)
+ApplicationSFML::ApplicationSFML(sf::RenderWindow *const render_window)
+    : _render_window(render_window)
 {
     _render_window->setFramerateLimit(60);
     _render_window->setKeyRepeatEnabled(false);

src/impl/sfml/application/inputconvertersfml.h

@@ -19,120 +19,64 @@ constexpr kku::SystemEvent convert(const sf::Event& event) noexcept
         break;
 
     case sf::Event::Resized:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::Resize,
-            kku::SystemEvent::Size
-            {
-                event.size.width,
-                event.size.height
-            }
-        };
+            kku::SystemEvent::Size{event.size.width, event.size.height}};
 
     case sf::Event::KeyPressed:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::KeyPress,
-            kku::SystemEvent::Key
-            {
-                kku::convert(event.key.code),
-                event.key.alt,
-                event.key.control,
-                event.key.shift
-            }
-        };
+            kku::SystemEvent::Key{kku::convert(event.key.code), event.key.alt,
+                                  event.key.control, event.key.shift}};
 
     case sf::Event::KeyReleased:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::KeyRelease,
-            kku::SystemEvent::Key
-            {
-                kku::convert(event.key.code),
-                event.key.alt,
-                event.key.control,
-                event.key.shift
-            }
-        };
+            kku::SystemEvent::Key{kku::convert(event.key.code), event.key.alt,
+                                  event.key.control, event.key.shift}};
 
     case sf::Event::MouseWheelScrolled:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::MouseWheelScroll,
-            kku::SystemEvent::Mouse
-            {
-                kku::Point
-                {
-                    event.mouseWheelScroll.x,
-                    event.mouseWheelScroll.y
-                },
+            kku::SystemEvent::Mouse{
+                kku::Point{event.mouseWheelScroll.x, event.mouseWheelScroll.y},
 
                 (event.mouseWheelScroll.delta > 0),
-                kku::SystemEvent::Mouse::Button::Wheel
-            }
-        };
+                kku::SystemEvent::Mouse::Button::Wheel}};
 
     case sf::Event::MouseMoved:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::MouseMove,
-            kku::SystemEvent::Mouse
-            {
-                kku::Point
-                {
-                    event.mouseMove.x,
-                    event.mouseMove.y
-                },
+            kku::SystemEvent::Mouse{
+                kku::Point{event.mouseMove.x, event.mouseMove.y},
 
-                false,
-                kku::SystemEvent::Mouse::Button::None
-            }
-        };
+                false, kku::SystemEvent::Mouse::Button::None}};
 
     case sf::Event::MouseButtonPressed:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::MousePress,
-            kku::SystemEvent::Mouse
-            {
-                kku::Point
-                {
-                    event.mouseButton.x,
-                    event.mouseButton.y
-                },
+            kku::SystemEvent::Mouse{
+                kku::Point{event.mouseButton.x, event.mouseButton.y},
 
                 false,
                 ((event.mouseButton.button == sf::Mouse::Button::Left)
                      ? kku::SystemEvent::Mouse::Button::Left
-                 : kku::SystemEvent::Mouse::Button::Right)
-            }
-        };
+                     : kku::SystemEvent::Mouse::Button::Right)}};
 
     case sf::Event::MouseButtonReleased:
-        return kku::SystemEvent
-        {
+        return kku::SystemEvent{
             kku::SystemEvent::Type::MouseRelease,
-            kku::SystemEvent::Mouse
-            {
-                kku::Point
-                {
-                    event.mouseButton.x,
-                    event.mouseButton.y
-                },
+            kku::SystemEvent::Mouse{
+                kku::Point{event.mouseButton.x, event.mouseButton.y},
 
                 false,
                 ((event.mouseButton.button == sf::Mouse::Button::Left)
                      ? kku::SystemEvent::Mouse::Button::Left
-                 : kku::SystemEvent::Mouse::Button::Right)
-            }
-        };
+                     : kku::SystemEvent::Mouse::Button::Right)}};
     }
 
-    return kku::SystemEvent
-    {
-        kku::SystemEvent::Type::None,
-        kku::SystemEvent::None{}
-    };
+    return kku::SystemEvent{kku::SystemEvent::Type::None,
+                            kku::SystemEvent::None{}};
 }
 
-}
+} // namespace kku

src/impl/sfml/corefactorysfml.cpp

@@ -1,13 +1,13 @@
 #include "corefactorysfml.h"
 
-#include "rectanglesfml.h"
-#include "musicsfml.h"
-#include "textsfml.h"
 #include "linesfml.h"
+#include "musicsfml.h"
+#include "rectanglesfml.h"
 #include "spritesfml.h"
+#include "textsfml.h"
 
-CoreFactorySFML::CoreFactorySFML(sf::RenderTarget * const render_target) :
-    _render_target(render_target)
+CoreFactorySFML::CoreFactorySFML(sf::RenderTarget *const render_target)
+    : _render_target(render_target)
 {
     auto gui_font = std::make_unique<sf::Font>();
     gui_font->loadFromFile("resources/SourceCodePro-Regular.ttf");
@@ -38,7 +38,8 @@ std::shared_ptr<kku::Rectangle> CoreFactorySFML::getRectangle() const
     return std::make_unique<LineSFML>(_render_target);
 }
 
- std::shared_ptr<kku::Sprite> CoreFactorySFML::getSprite(kku::GUISprite::Id id) const
+std::shared_ptr<kku::Sprite>
+CoreFactorySFML::getSprite(kku::GUISprite::Id id) const
 {
     const auto texture = _texture_holder.get(kku::Texture::Id::GUI);
     switch (id)
@@ -48,12 +49,14 @@ std::shared_ptr<kku::Rectangle> CoreFactorySFML::getRectangle() const
         break;
 
     case kku::GUISprite::Id::SFML_LOGO:
-        return std::make_unique<SpriteSFML>(_render_target, _texture_holder.get(kku::Texture::Id::GUI),
+        return std::make_unique<SpriteSFML>(
+            _render_target, _texture_holder.get(kku::Texture::Id::GUI),
             kku::Area<unsigned int>{0, 0, 252, 81});
         break;
 
     case kku::GUISprite::Id::CRYPTOPP_LOGO:
-        return std::make_unique<SpriteSFML>(_render_target, _texture_holder.get(kku::Texture::Id::GUI),
+        return std::make_unique<SpriteSFML>(
+            _render_target, _texture_holder.get(kku::Texture::Id::GUI),
             kku::Area<unsigned int>{252, 0, 135, 36});
         break;
     }

src/impl/sfml/corefactorysfml.h

@@ -1,8 +1,8 @@
 #pragma once
 
+#include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/RectangleShape.hpp>
 #include <SFML/Graphics/RenderTarget.hpp>
-#include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/Sprite.hpp>
 #include <SFML/Graphics/Texture.hpp>
 
@@ -16,7 +16,8 @@ public:
     virtual std::shared_ptr<kku::Text> getText(kku::Font::Id id) const override;
     virtual std::shared_ptr<kku::Rectangle> getRectangle() const override;
     virtual std::shared_ptr<kku::Line> getLine() const override;
-    virtual std::shared_ptr<kku::Sprite> getSprite(kku::GUISprite::Id id) const override;
+    virtual std::shared_ptr<kku::Sprite>
+    getSprite(kku::GUISprite::Id id) const override;
     virtual kku::Vector2<std::size_t> getRenderSize() const override;
 
   private:

src/impl/sfml/linesfml.cpp

@@ -1,7 +1,7 @@
 #include "linesfml.h"
 
-LineSFML::LineSFML(sf::RenderTarget * const render_target) :
-    _render_target(render_target)
+LineSFML::LineSFML(sf::RenderTarget *const render_target)
+    : _render_target(render_target)
 {
     _vertex = sf::VertexArray(sf::LinesStrip, 2);
 }

src/impl/sfml/linesfml.h

@@ -10,7 +10,8 @@ class LineSFML : public kku::Line
 {
   public:
     explicit LineSFML(sf::RenderTarget *const render_target);
-    virtual void setPosition(const kku::Point& p1, const kku::Point& p2) override;
+    virtual void setPosition(const kku::Point &p1,
+                             const kku::Point &p2) override;
     virtual void setColor(const kku::Color &c1, const kku::Color &c2) override;
     virtual void display() override;
 

src/impl/sfml/musicsfml.cpp

@@ -1,10 +1,9 @@
 #include "musicsfml.h"
 
-MusicSFML::MusicSFML() :
-    _sfml_music_offset(0),
-    _previous_frame_offset(0),
-    _absolute_offset(0)
-{}
+MusicSFML::MusicSFML()
+    : _sfml_music_offset(0), _previous_frame_offset(0), _absolute_offset(0)
+{
+}
 
 bool MusicSFML::open(const std::string &filepath)
 {
@@ -48,7 +47,8 @@ kku::microsec MusicSFML::fetchOffset()
     if (_music.getStatus() != sf::Music::Status::Playing)
         return _absolute_offset;
 
-    const auto interpolator_timestamp = _offset_interpolator.getElapsedTime().asMicroseconds();
+    const auto interpolator_timestamp =
+        _offset_interpolator.getElapsedTime().asMicroseconds();
     const auto sfml_new_offset = _music.getPlayingOffset().asMicroseconds();
 
     _absolute_offset += (interpolator_timestamp - _previous_frame_offset);
@@ -86,4 +86,3 @@ kku::microsec MusicSFML::getDuration() const
 {
     return _music.getDuration().asMicroseconds();
 }
-

src/impl/sfml/rectanglesfml.cpp

@@ -1,8 +1,9 @@
 #include "rectanglesfml.h"
 
-RectangleSFML::RectangleSFML(sf::RenderTarget * const render_target) :
-    _render_target(render_target)
-{}
+RectangleSFML::RectangleSFML(sf::RenderTarget *const render_target)
+    : _render_target(render_target)
+{
+}
 
 void RectangleSFML::setRect(const kku::Area<float> &rect)
 {
@@ -36,8 +37,8 @@ kku::Point RectangleSFML::getPosition() const
 
 void RectangleSFML::setColor(const kku::Color &color)
 {
-    _rectangle.setFillColor(sf::Color{color.red, color.green,
-                                      color.blue, color.alpha});
+    _rectangle.setFillColor(
+        sf::Color{color.red, color.green, color.blue, color.alpha});
 }
 
 kku::Color RectangleSFML::getColor() const

src/impl/sfml/rectanglesfml.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <SFML/Graphics/RenderTarget.hpp>
 #include <SFML/Graphics/RectangleShape.hpp>
+#include <SFML/Graphics/RenderTarget.hpp>
 #include <memory>
 
 #include "core/rectangle.h"

src/impl/sfml/spritesfml.cpp

@@ -2,10 +2,12 @@
 
 SpriteSFML::SpriteSFML(sf::RenderTarget *const render_target,
                        const std::shared_ptr<sf::Texture> &texture,
-                       const kku::Area<unsigned int> &cropping) :
-    _render_target(render_target),
-    _sprite(*texture, sf::IntRect(cropping.left, cropping.top, cropping.width, cropping.height))
-{}
+                       const kku::Area<unsigned int> &cropping)
+    : _render_target(render_target),
+      _sprite(*texture, sf::IntRect(cropping.left, cropping.top, cropping.width,
+                                    cropping.height))
+{
+}
 
 void SpriteSFML::setPosition(const kku::Point &position)
 {
@@ -15,11 +17,7 @@ void SpriteSFML::setPosition(const kku::Point& position)
 kku::Point SpriteSFML::getPosition() const
 {
     const auto &position = _sprite.getPosition();
-    return kku::Point
-    {
-        position.x,
-        position.y
-    };
+    return kku::Point{position.x, position.y};
 }
 
 void SpriteSFML::move(const kku::Vector2<float> &delta)

src/impl/sfml/spritesfml.h

@@ -4,6 +4,7 @@
 #include <SFML/Graphics/Sprite.hpp>
 #include <memory>
 
+#include "core/area.h"
 #include "core/sprite.h"
 
 class SpriteSFML : public kku::Sprite

src/impl/sfml/textsfml.cpp

@@ -1,8 +1,8 @@
 #include "textsfml.h"
 
 TextSFML::TextSFML(sf::RenderTarget *const render_target,
-                   const std::shared_ptr<const sf::Font>& font) :
-    _render_target(render_target)
+                   const std::shared_ptr<const sf::Font> &font)
+    : _render_target(render_target)
 {
     _text.setFont(*font);
 }
@@ -29,7 +29,8 @@ void TextSFML::move(const kku::Vector2<float>& delta)
 
 void TextSFML::setColor(const kku::Color &color)
 {
-    _text.setFillColor(sf::Color{color.red, color.green, color.blue, color.alpha});
+    _text.setFillColor(
+        sf::Color{color.red, color.green, color.blue, color.alpha});
 }
 
 void TextSFML::display()

src/impl/sfml/textsfml.h

@@ -1,8 +1,8 @@
 #pragma once
 
+#include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/RenderTarget.hpp>
 #include <SFML/Graphics/Text.hpp>
-#include <SFML/Graphics/Font.hpp>
 #include <memory>
 
 #include "core/text.h"

src/main.cpp

@@ -2,7 +2,9 @@
 
 int main()
 {
-    sf::RenderWindow window(sf::VideoMode{1280, 720}, "Project Kyoku", sf::Style::Default);
+    sf::RenderWindow window(sf::VideoMode{1280, 720}, "Project Kyoku",
+                            sf::Style::Default);
+
     ApplicationSFML app(&window);
     if (app.init())
         app.run();

src/modes/classicmode/classicfactory.cpp

@@ -1,46 +1,53 @@
 #include "classicmode/classicfactory.h"
 
+#include "graphics/classicgraphicsfactory.h"
 #include "graphics/classicscenegraphicsmanager.h"
 #include "graphics/classictimelinegraphicsmanager.h"
-#include "graphics/classicgraphicsfactory.h"
 
 #include "core/timeline.h"
-#include "game/classicgame.h"
-#include "game/gamecontext.h"
-#include "game/holdmanager.h"
 #include "editor/classiceditor.h"
 #include "editor/editorcontext.h"
 #include "editor/selectionmanager.h"
+#include "game/classicgame.h"
+#include "game/gamecontext.h"
+#include "game/holdmanager.h"
 
-
-std::unique_ptr<kku::Game> classic::getGame(const std::shared_ptr<kku::CoreFactory>& core_factory)
+std::unique_ptr<kku::Game>
+classic::getGame(const std::shared_ptr<kku::CoreFactory> &core_factory)
 {
-    // read offset from beatmap metadata
     const kku::microsec visibility_offset = 1648648;
 
     const auto factory = std::make_shared<ClassicGraphicsFactory>(core_factory);
     const auto timeline = std::make_shared<kku::Timeline<ClassicNote>>();
-    const auto graphics_manager = std::make_shared<ClassicSceneGraphicsManager>(timeline, factory, visibility_offset);
+    const auto graphics_manager = std::make_shared<ClassicSceneGraphicsManager>(
+        timeline, factory, visibility_offset);
     const auto hold_manager = std::make_shared<HoldManager>();
 
-    const auto context = std::make_shared<GameContext>(hold_manager, graphics_manager);
+    const auto context =
+        std::make_shared<GameContext>(hold_manager, graphics_manager);
 
     return std::make_unique<ClassicGame>(timeline, context);
 }
 
-std::unique_ptr<kku::Editor> classic::getEditor(const std::shared_ptr<kku::CoreFactory>& core_factory)
+std::unique_ptr<kku::Editor>
+classic::getEditor(const std::shared_ptr<kku::CoreFactory> &core_factory)
 {
-    // read offset from beatmap metadata
     const kku::microsec visibility_offset = 1648648;
 
     const auto factory = std::make_shared<ClassicGraphicsFactory>(core_factory);
     const auto timeline = std::make_shared<kku::Timeline<ClassicNote>>();
-    const auto selection_manager = std::make_shared<SelectionManager<ClassicNote>>();
+    const auto selection_manager =
+        std::make_shared<SelectionManager<ClassicNote>>();
     std::vector<std::shared_ptr<ClassicGraphicsManager>> graphics_managers;
-    graphics_managers.emplace_back(std::make_shared<ClassicSceneGraphicsManager>(timeline, factory, visibility_offset));
-    graphics_managers.emplace_back(std::make_shared<ClassicTimelineGraphicsManager>(timeline, factory, visibility_offset * 2));
+    graphics_managers.emplace_back(
+        std::make_shared<ClassicSceneGraphicsManager>(timeline, factory,
+                                                      visibility_offset));
+    graphics_managers.emplace_back(
+        std::make_shared<ClassicTimelineGraphicsManager>(
+            timeline, factory, visibility_offset * 2));
 
-    const auto context = std::make_shared<EditorContext>(selection_manager, std::move(graphics_managers));
+    const auto context = std::make_shared<EditorContext>(
+        selection_manager, std::move(graphics_managers));
 
     return std::make_unique<ClassicEditor>(timeline, context);
 }

src/modes/classicmode/classicnote.cpp

@@ -1,10 +1,9 @@
 #include "classicmode/classicnote.h"
 
-ClassicNote::ClassicNote(const kku::microsec& perfect_offset, int id) :
-    Note(perfect_offset),
-    _state(State::NONE),
-    _id(id)
-{}
+ClassicNote::ClassicNote(const kku::microsec &perfect_offset, int id)
+    : Note(perfect_offset), _state(State::NONE), _id(id)
+{
+}
 
 void ClassicNote::setState(ClassicNote::State state) noexcept
 {

src/modes/classicmode/editor/callbacks/callbacksimple.cpp

@@ -1,10 +1,10 @@
 #include "callbacksimple.h"
 
-CallbackSimple::CallbackSimple(Init&& init, Metadata&& metadata) :
-    _run(std::move(init.run)),
-    _is_enabled(std::move(init.is_enabled)),
+CallbackSimple::CallbackSimple(Init &&init, Metadata &&metadata)
+    : _run(std::move(init.run)), _is_enabled(std::move(init.is_enabled)),
       _metadata(std::move(metadata))
-{}
+{
+}
 
 bool CallbackSimple::isEnabled() const
 {

src/modes/classicmode/editor/classiceditor.cpp

@@ -1,25 +1,22 @@
 #include "classiceditor.h"
 
-#include "graphics/classicgraphicsmanager.h"
 #include "editor/selectionmanager.h"
+#include "graphics/classicgraphicsmanager.h"
 
 // Replace with interface by dependency injection
-#include "graphics/animations/classicflyinganimationscenario.h"
 #include "graphics/animations/classicdyinganimationscenario.h"
+#include "graphics/animations/classicflyinganimationscenario.h"
 //
 
-#include "game/classicarrownote.h"
-#include "editorcontext.h"
 #include "callbacks/callbacksimple.h"
+#include "editorcontext.h"
+#include "game/classicarrownote.h"
 
-ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
-                             const std::shared_ptr<EditorContext>& context) :
-    _timeline(timeline),
-    _context(context),
-    _selected_type(Type::UP),
-    _current_time(0),
-    _scroll_step(500000),
-    _note_id(0)
+ClassicEditor::ClassicEditor(
+    const std::shared_ptr<kku::Timeline<ClassicNote>> &timeline,
+    const std::shared_ptr<EditorContext> &context)
+    : _timeline(timeline), _context(context), _selected_type(Type::UP),
+      _current_time(0), _scroll_step(500000), _note_id(0)
 {
     kku::microsec starting_beat_offset = 402162;
     int amount_of_beats = 209;
@@ -30,7 +27,8 @@ ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>&
     kku::microsec bpm_iterator = starting_beat_offset;
     kku::microsec bpm_end = starting_beat_offset + (interval * amount_of_beats);
 
-    std::vector<kku::microsec> input_intervals = {note_input_offset / 3, note_input_offset / 3 * 2, note_input_offset};
+    std::vector<kku::microsec> input_intervals = {
+        note_input_offset / 3, note_input_offset / 3 * 2, note_input_offset};
     std::set<ClassicNote *, kku::NotePtrComparator> notes;
     input_intervals.shrink_to_fit();
 
@@ -53,6 +51,14 @@ ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>&
 
         bool hold = false;
 
+        if (_note_id == 0)
+        {
+            element.keys = {kku::SystemEvent::Key::Code::S,
+                            kku::SystemEvent::Key::Code::Down};
+
+            element.type = Type::DOWN;
+        }
+
         if (counter == 0)
         {
             hold = true;
@@ -67,15 +73,8 @@ ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>&
 
         --counter;
 
-        ClassicArrowNote::Init init
-        {
-            _note_id++,
-            context,
-            bpm_iterator,
-            input_intervals,
-            {element},
-            hold
-        };
+        ClassicArrowNote::Init init{_note_id++,      context,   bpm_iterator,
+                                    input_intervals, {element}, hold};
 
         notes.insert(new ClassicArrowNote(std::move(init)));
 
@@ -131,11 +130,13 @@ void ClassicEditor::input(kku::GameEvent&& input)
     case kku::SystemEvent::Type::MousePress:
     {
         const auto note = _timeline->getNoteBy(_current_time);
-        if (_timeline->isExpired(note) && !_bpm_sections.empty() && _current_time >= (*_bpm_sections.begin()).offset_start)
+        if (_timeline->isExpired(note) && !_bpm_sections.empty() &&
+            _current_time >= (*_bpm_sections.begin()).offset_start)
         {
             ArrowElement element;
 
-            element.position = std::get<kku::SystemEvent::Mouse>(event.data).position;
+            element.position =
+                std::get<kku::SystemEvent::Mouse>(event.data).position;
             element.falling_curve_interpolation = {};
 
             element.keys = {kku::SystemEvent::Key::Code::W,
@@ -143,15 +144,8 @@ void ClassicEditor::input(kku::GameEvent&& input)
 
             element.type = Type::UP;
 
-            ClassicArrowNote::Init init
-            {
-                _note_id++,
-                _context,
-                _current_time,
-                {},
-                {element},
-                false
-            };
+            ClassicArrowNote::Init init{_note_id++, _context,  _current_time,
+                                        {},         {element}, false};
 
             _timeline->insertNote(new ClassicArrowNote(std::move(init)));
         }
@@ -163,8 +157,9 @@ void ClassicEditor::input(kku::GameEvent&& input)
 
         break;
     }
-
     }
+
+    _context->inputUI(std::move(input));
 }
 
 void ClassicEditor::update(kku::UpdateData &&updatedata)

src/modes/classicmode/editor/editorcontext.cpp

@@ -4,11 +4,13 @@
 #include "graphics/classicgraphicsmanager.h"
 #include "graphics/classicnotegraphics.h"
 
-EditorContext::EditorContext(const std::shared_ptr<SelectionManager<ClassicNote>>& selection_manager,
-                             std::vector<std::shared_ptr<ClassicGraphicsManager>>&& graphics_managers) :
-    _selection_manager(selection_manager),
+EditorContext::EditorContext(
+    const std::shared_ptr<SelectionManager<ClassicNote>> &selection_manager,
+    std::vector<std::shared_ptr<ClassicGraphicsManager>> &&graphics_managers)
+    : _selection_manager(selection_manager),
       _graphics_managers(std::move(graphics_managers))
-{}
+{
+}
 
 void EditorContext::input(ClassicArrowNote *note, kku::GameEvent &&input) const
 {
@@ -24,8 +26,9 @@ void EditorContext::input(ClassicArrowNote *note, kku::GameEvent&& input) const
             bool selection_changed = false;
             std::size_t amount_selected = 0;
 
-        const auto position = std::get<kku::SystemEvent::Mouse>(input.event.data).position;
-        for (auto& element : note->getElements())
+            const auto position =
+        std::get<kku::SystemEvent::Mouse>(input.event.data).position; for (auto&
+        element : note->getElements())
             {
                 if (element.sprite->getRectangle()->contains(position))
                 {
@@ -46,17 +49,18 @@ void EditorContext::input(ClassicArrowNote *note, kku::GameEvent&& input) const
 
             break;
         }*/
-
     }
 }
 
-void EditorContext::update(ClassicArrowNote *note, const kku::microsec& music_offset) const
+void EditorContext::update(ClassicArrowNote *note,
+                           const kku::microsec &music_offset) const
 {
     auto &elements = note->getElements();
 
     switch (note->getState())
     {
-    default: return;
+    default:
+        return;
         break;
 
     case ClassicArrowNote::State::INITIAL:
@@ -66,11 +70,13 @@ void EditorContext::update(ClassicArrowNote *note, const kku::microsec& music_of
         break;
 
     case ClassicArrowNote::State::FLYING:
-        if (!note->isActive(music_offset) && music_offset > note->getPerfectOffset())
+        if (!note->isActive(music_offset) &&
+            music_offset > note->getPerfectOffset())
         {
             note->setState(ClassicArrowNote::State::DYING);
             for (auto &element : elements)
-                element.animations[note->getState()]->launch(element.sprite, music_offset, note->getPerfectOffset());
+                element.animations[note->getState()]->launch(
+                    element.sprite, music_offset, note->getPerfectOffset());
         }
         break;
 
@@ -89,11 +95,18 @@ void EditorContext::update(ClassicArrowNote *note, const kku::microsec& music_of
             element.animations[note->getState()]->update(music_offset);
 }
 
-std::shared_ptr<SelectionManager<ClassicNote>> EditorContext::getSelectionManager() const
+std::shared_ptr<SelectionManager<ClassicNote>>
+EditorContext::getSelectionManager() const
 {
     return _selection_manager;
 }
 
+void EditorContext::inputUI(kku::GameEvent &&input)
+{
+    for (auto &manager : _graphics_managers)
+        manager->input(std::move(input));
+}
+
 void EditorContext::updateGraphics(const kku::microsec &music_offset)
 {
     for (auto &manager : _graphics_managers)

src/modes/classicmode/editor/editorcontext.h

@@ -17,6 +17,7 @@ public:
     virtual void input(ClassicArrowNote *note, kku::GameEvent&& input) const override;
     virtual void update(ClassicArrowNote *note, const kku::microsec &music_offset) const override;
 
+    void inputUI(kku::GameEvent&& input);
     void updateGraphics(const kku::microsec& music_offset);
     void displayGraphics() const;
 

src/modes/classicmode/editor/selectionmanager.h

@@ -2,6 +2,7 @@
 
 #include <vector>
 #include <algorithm>
+#include <functional>
 
 template <class T>
 class SelectionManager

src/modes/classicmode/game/classicarrownote.cpp

@@ -2,10 +2,9 @@
 #include "classicmode/context.h"
 #include "graphics/classicgraphicsmanager.h"
 
-ClassicArrowNote::ClassicArrowNote(Init&& init) :
-    ClassicNote(init.perfect_offset, init.id),
-    _evaluator(init.intervals, init.perfect_offset),
-    _context(init.context),
+ClassicArrowNote::ClassicArrowNote(Init &&init)
+    : ClassicNote(init.perfect_offset, init.id),
+      _evaluator(init.intervals, init.perfect_offset), _context(init.context),
       _is_holding(init.is_holding)
 {
     _elements.resize(init.elements.size());
@@ -20,8 +19,7 @@ ClassicArrowNote::ClassicArrowNote(Init&& init) :
 
 bool ClassicArrowNote::isActive(const kku::microsec &offset) const
 {
-    return _evaluator.isActive(offset)
-        && _state != State::DYING;
+    return _evaluator.isActive(offset) && _state != State::DYING;
 }
 
 void ClassicArrowNote::update(const kku::microsec &music_offset)
@@ -34,9 +32,10 @@ void ClassicArrowNote::input(kku::GameEvent&& input)
     _context->input(this, std::move(input));
 }
 
-void ClassicArrowNote::draw(const std::shared_ptr<const ClassicGraphicsManager>& graphics_manager) const
+void ClassicArrowNote::draw(
+    const std::shared_ptr<const ClassicGraphicsManager> &graphics_manager) const
 {
-    graphics_manager->draw(_elements);
+    graphics_manager->draw(this);
 }
 
 bool ClassicArrowNote::isHold() const
@@ -49,7 +48,13 @@ std::vector<ArrowElement>& ClassicArrowNote::getElements()
     return _elements;
 }
 
-auto ClassicArrowNote::calculatePrecision(const kku::microsec& offset) const -> Grade
+const std::vector<ArrowElement> &ClassicArrowNote::getElements() const
+{
+    return _elements;
+}
+
+auto ClassicArrowNote::calculatePrecision(const kku::microsec &offset) const
+    -> Grade
 {
     return _evaluator.calculatePrecision(offset);
 }
@@ -58,7 +63,5 @@ bool ClassicArrowNote::isPressedAs(kku::SystemEvent::Key::Code key) const
 {
     return std::any_of(_elements.begin(), _elements.end(),
                        [key](const auto &element)
-           {
-              return key == element.pressed_as;
-           });
+                       { return key == element.pressed_as; });
 }

src/modes/classicmode/game/classicarrownote.h

@@ -40,6 +40,7 @@ public:
 
     bool isHold() const;
     std::vector<ArrowElement>& getElements();
+    const std::vector<ArrowElement>& getElements() const;
     Grade calculatePrecision(const kku::microsec& offset) const;
     bool isPressedAs(kku::SystemEvent::Key::Code key) const;
 

src/modes/classicmode/game/classicgame.cpp

@@ -1,15 +1,16 @@
 #include "classicgame.h"
-#include "classicmode/classicnote.h"
 #include "classicmapcreator.h"
+#include "classicmode/classicnote.h"
 #include "gamecontext.h"
-#include "holdmanager.h"
 #include "graphics/classicgraphicsmanager.h"
+#include "holdmanager.h"
 
-ClassicGame::ClassicGame(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
-                         const std::shared_ptr<GameContext>& context) :
-    _timeline(timeline),
-    _context(context)
-{}
+ClassicGame::ClassicGame(
+    const std::shared_ptr<kku::Timeline<ClassicNote>> &timeline,
+    const std::shared_ptr<GameContext> &context)
+    : _timeline(timeline), _context(context)
+{
+}
 
 void ClassicGame::run()
 {
@@ -39,10 +40,10 @@ void ClassicGame::input(kku::GameEvent&& input)
 
     case kku::SystemEvent::Type::KeyRelease:
     {
-        _context->getHoldManager()->checkRelease(std::get<kku::SystemEvent::Key>(input.event.data).view);
+        _context->getHoldManager()->checkRelease(
+            std::get<kku::SystemEvent::Key>(input.event.data).view);
     }
     break;
-
     }
 }
 
@@ -51,10 +52,12 @@ void ClassicGame::update(kku::UpdateData&& updatedata)
     // UNCOMMENT TO TEST AUTOPLAY
     /*auto note_it = _timeline->getActiveNote(updatedata.timestamp);
 
-    if (!_timeline->isExpired(note_it) && updatedata.timestamp >= (*note_it)->getPerfectOffset())
+    if (!_timeline->isExpired(note_it) && updatedata.timestamp >=
+    (*note_it)->getPerfectOffset())
     {
         auto note = (*note_it);
-        note->input(kku::GameEvent{updatedata.timestamp, kku::SystemEvent{kku::SystemEvent::Type::None, kku::SystemEvent::Key{}}});
+        note->input(kku::GameEvent{updatedata.timestamp,
+    kku::SystemEvent{kku::SystemEvent::Type::None, kku::SystemEvent::Key{}}});
     }*/
 
     _timeline->update(updatedata.timestamp);

src/modes/classicmode/game/classicmapcreator.cpp

@@ -3,11 +3,13 @@
 #include "gamecontext.h"
 
 // Replace with interface by dependency injection
-#include "graphics/animations/classicflyinganimationscenario.h"
 #include "graphics/animations/classicdyinganimationscenario.h"
+#include "graphics/animations/classicflyinganimationscenario.h"
 //
 
-auto classic::createBeatmap(const std::string& filepath, const std::shared_ptr<GameContext>& context) -> Beatmap
+auto classic::createBeatmap(const std::string &filepath,
+                            const std::shared_ptr<GameContext> &context)
+    -> Beatmap
 {
     (void)filepath;
 
@@ -20,7 +22,8 @@ auto classic::createBeatmap(const std::string& filepath, const std::shared_ptr<G
     kku::microsec bpm_iterator = starting_beat_offset;
     kku::microsec bpm_end = starting_beat_offset + (interval * amount_of_beats);
 
-    std::vector<kku::microsec> input_intervals = {note_input_offset / 3, note_input_offset / 3 * 2, note_input_offset};
+    std::vector<kku::microsec> input_intervals = {
+        note_input_offset / 3, note_input_offset / 3 * 2, note_input_offset};
     std::set<ClassicNote *, kku::NotePtrComparator> notes;
     input_intervals.shrink_to_fit();
 
@@ -59,15 +62,8 @@ auto classic::createBeatmap(const std::string& filepath, const std::shared_ptr<G
 
         --counter;
 
-        ClassicArrowNote::Init init
-        {
-            id++,
-            context,
-            bpm_iterator,
-            input_intervals,
-            {element},
-            hold
-        };
+        ClassicArrowNote::Init init{
+            id++, context, bpm_iterator, input_intervals, {element}, hold};
 
         notes.insert(new ClassicArrowNote(std::move(init)));
 
@@ -80,4 +76,3 @@ auto classic::createBeatmap(const std::string& filepath, const std::shared_ptr<G
 
     return {std::move(notes), note_input_offset * 8};
 }
-

src/modes/classicmode/game/gamecontext.cpp

@@ -4,25 +4,29 @@
 #include "graphics/animations/classicanimationscenario.h"
 #include "graphics/classicgraphicsmanager.h"
 
-GameContext::GameContext(const std::shared_ptr<HoldManager>& hold_manager,
-                         const std::shared_ptr<ClassicGraphicsManager>& graphics_manager) :
-    _hold_manager(hold_manager),
-    _graphics_manager(graphics_manager)
-{}
+GameContext::GameContext(
+    const std::shared_ptr<HoldManager> &hold_manager,
+    const std::shared_ptr<ClassicGraphicsManager> &graphics_manager)
+    : _hold_manager(hold_manager), _graphics_manager(graphics_manager)
+{
+}
 
 void GameContext::input(ClassicArrowNote *note, kku::GameEvent &&input) const
 {
     auto grade = ClassicArrowNote::Grade::BAD;
     auto &elements = note->getElements();
 
-    bool input_valid = std::any_of(elements.begin(), elements.end(),
+    bool input_valid = std::any_of(
+        elements.begin(), elements.end(),
         [input = input](auto &element)
         {
             if (element.pressed)
                 return false;
 
-                    const auto code = std::get<kku::SystemEvent::Key>(input.event.data).view;
-                    auto key_iterator = std::find(element.keys.begin(), element.keys.end(), code);
+            const auto code =
+                std::get<kku::SystemEvent::Key>(input.event.data).view;
+            auto key_iterator =
+                std::find(element.keys.begin(), element.keys.end(), code);
 
             bool found_key = key_iterator != element.keys.end();
             if (found_key)
@@ -34,11 +38,9 @@ void GameContext::input(ClassicArrowNote *note, kku::GameEvent&& input) const
             return found_key;
         });
 
-    bool all_pressed = std::all_of(elements.begin(), elements.end(),
-                                   [](const auto& element)
-                                   {
-                                       return element.pressed;
-                                   });
+    bool all_pressed =
+        std::all_of(elements.begin(), elements.end(),
+                    [](const auto &element) { return element.pressed; });
 
     if (all_pressed)
     {
@@ -51,19 +53,22 @@ void GameContext::input(ClassicArrowNote *note, kku::GameEvent&& input) const
     {
         note->setState(ClassicArrowNote::State::DYING);
         for (auto &element : elements)
-            element.animations[note->getState()]->launch(element.sprite, input.timestamp, note->getPerfectOffset());
+            element.animations[note->getState()]->launch(
+                element.sprite, input.timestamp, note->getPerfectOffset());
     }
 
     std::cout << "User input: " << static_cast<int>(grade) << "\n";
 }
 
-void GameContext::update(ClassicArrowNote *note, const kku::microsec& music_offset) const
+void GameContext::update(ClassicArrowNote *note,
+                         const kku::microsec &music_offset) const
 {
     auto &elements = note->getElements();
 
     switch (note->getState())
     {
-    default: return;
+    default:
+        return;
         break;
 
     case ClassicArrowNote::State::INITIAL:
@@ -72,11 +77,13 @@ void GameContext::update(ClassicArrowNote *note, const kku::microsec& music_offs
         break;
 
     case ClassicArrowNote::State::FLYING:
-        if (!note->isActive(music_offset) && music_offset > note->getPerfectOffset())
+        if (!note->isActive(music_offset) &&
+            music_offset > note->getPerfectOffset())
         {
             note->setState(ClassicArrowNote::State::DYING);
             for (auto &element : elements)
-                element.animations[note->getState()]->launch(element.sprite, music_offset, note->getPerfectOffset());
+                element.animations[note->getState()]->launch(
+                    element.sprite, music_offset, note->getPerfectOffset());
         }
         break;
 

src/modes/classicmode/game/holdmanager.cpp

@@ -1,8 +1,8 @@
 #include "holdmanager.h"
 #include "classicarrownote.h"
 
-#include <iostream>
 #include <algorithm>
+#include <iostream>
 
 void HoldManager::emplace(ClassicArrowNote *note)
 {
@@ -13,9 +13,7 @@ void HoldManager::checkRelease(kku::SystemEvent::Key::Code released_key)
 {
     bool key_match = std::any_of(_notes_on_hold.begin(), _notes_on_hold.end(),
                                  [released_key](const auto &note)
-                     {
-                         return note->isPressedAs(released_key);
-                     });
+                                 { return note->isPressedAs(released_key); });
 
     if (key_match)
         _notes_on_hold.clear();

src/modes/classicmode/graphics/animations/classicdyinganimationscenario.cpp

@@ -1,7 +1,9 @@
 #include "classicdyinganimationscenario.h"
 #include "graphics/classicnotegraphics.h"
 
-void ClassicDyingAnimationScenario::launch(const std::shared_ptr<ClassicNoteGraphics> sprite, const kku::microsec& time_begin, const kku::microsec &time_end)
+void ClassicDyingAnimationScenario::launch(
+    const std::shared_ptr<ClassicNoteGraphics> sprite,
+    const kku::microsec &time_begin, const kku::microsec &time_end)
 {
     _sprite = sprite;
     _time_begin = time_begin;
@@ -25,7 +27,8 @@ void ClassicDyingAnimationScenario::update(const kku::microsec& music_offset)
         return;
     }
 
-    auto new_alpha = (int(fill_color.alpha) - 15) < 0 ? 0 : int(fill_color.alpha) - 15;
+    auto new_alpha =
+        (int(fill_color.alpha) - 15) < 0 ? 0 : int(fill_color.alpha) - 15;
     fill_color.alpha = new_alpha;
 
     _sprite->setColor(fill_color);

src/modes/classicmode/graphics/animations/classicflyinganimationscenario.cpp

@@ -1,7 +1,9 @@
 #include "classicflyinganimationscenario.h"
 #include "graphics/classicnotegraphics.h"
 
-void ClassicFlyingAnimationScenario::launch(const std::shared_ptr<ClassicNoteGraphics> sprite, const kku::microsec& time_begin, const kku::microsec &time_end)
+void ClassicFlyingAnimationScenario::launch(
+    const std::shared_ptr<ClassicNoteGraphics> sprite,
+    const kku::microsec &time_begin, const kku::microsec &time_end)
 {
     _sprite = sprite;
     _time_begin = time_begin;
@@ -12,7 +14,8 @@ void ClassicFlyingAnimationScenario::launch(const std::shared_ptr<ClassicNoteGra
     _sprite->setTrailColor(_sprite->getColor());
 }
 
-float ClassicFlyingAnimationScenario::getPoint(const kku::Point& point, float perc) const
+float ClassicFlyingAnimationScenario::getPoint(const kku::Point &point,
+                                               float perc) const
 {
     return point.x + ((point.y - point.x) * perc);
 }
@@ -28,7 +31,8 @@ void ClassicFlyingAnimationScenario::update(const kku::microsec& music_offset)
     float xb = getPoint(kku::Point{crd.x + 90, crd.x}, i);
     float yb = getPoint(kku::Point{crd.y - 150, crd.y}, i);
 
-    _sprite->setTrailPosition(kku::Point(getPoint( kku::Point{xa, xb}, i ), getPoint( kku::Point{ya, yb}, i )));
+    _sprite->setTrailPosition(kku::Point(getPoint(kku::Point{xa, xb}, i),
+                                         getPoint(kku::Point{ya, yb}, i)));
 }
 
 bool ClassicFlyingAnimationScenario::isDone() const

src/modes/classicmode/graphics/classicgraphicsfactory.cpp

@@ -1,8 +1,10 @@
 #include "classicgraphicsfactory.h"
 
-ClassicGraphicsFactory::ClassicGraphicsFactory(const std::shared_ptr<kku::CoreFactory>& core_factory) :
-    _core_factory(core_factory) 
-{}
+ClassicGraphicsFactory::ClassicGraphicsFactory(
+    const std::shared_ptr<kku::CoreFactory> &core_factory)
+    : _core_factory(core_factory)
+{
+}
 
 auto ClassicGraphicsFactory::generate(Type type) const -> SpriteData
 {
@@ -41,14 +43,20 @@ auto ClassicGraphicsFactory::generate(Type type) const -> SpriteData
     return SpriteData{shape, trail, color};
 }
 
-std::shared_ptr<ClassicNoteGraphics> ClassicGraphicsFactory::createSprite(Type type) const
+std::shared_ptr<ClassicNoteGraphics>
+ClassicGraphicsFactory::createSprite(Type type) const
 {
     const auto data = generate(type);
-    return std::make_shared<ClassicNoteGraphics>(ClassicNoteGraphics::Init{data.shape, data.trail, data.color});
+    return std::make_shared<ClassicNoteGraphics>(
+        ClassicNoteGraphics::Init{data.shape, data.trail, data.color});
 }
 
-std::shared_ptr<ClassicSelectionGraphics> ClassicGraphicsFactory::createSelection() const
+std::shared_ptr<ClassicSelectionGraphics>
+ClassicGraphicsFactory::createSelection() const
 {
     const auto shape = _core_factory->getRectangle();
-    return std::make_shared<ClassicSelectionGraphics>(ClassicSelectionGraphics::Init{shape, kku::Color{51, 153, 255, 120}});
+    return std::make_shared<ClassicSelectionGraphics>(
+        ClassicSelectionGraphics::Init{
+            shape, kku::Color{51, 153, 255, 120}
+    });
 }

src/modes/classicmode/graphics/classicgraphicsmanager.h

@@ -25,7 +25,7 @@ public:
     virtual void update(const kku::microsec& offset, ClassicArrowNote* note) = 0;
  // virtual void update(const kku::microsec& offset, ClassicSliderNote* note) = 0;
 
-    virtual void draw(const std::vector<ArrowElement>& elements) const = 0;
+    virtual void draw(const ClassicArrowNote * const note) const = 0;
  // virtual void draw(ClassicSliderNote* note) const = 0;
 
 protected:

src/modes/classicmode/graphics/classicnotegraphics.cpp

@@ -1,9 +1,7 @@
 #include "classicnotegraphics.h"
 
-ClassicNoteGraphics::ClassicNoteGraphics(ClassicNoteGraphics::Init&& init) :
-    _reset_color(init.color),
-    _shape(init.shape),
-    _trail(init.trail)
+ClassicNoteGraphics::ClassicNoteGraphics(ClassicNoteGraphics::Init &&init)
+    : _reset_color(init.color), _shape(init.shape), _trail(init.trail)
 {
     _shape->setColor(init.color);
     _trail->setColor(init.color);

src/modes/classicmode/graphics/classicscenegraphicsmanager.cpp

@@ -3,15 +3,14 @@
 
 #include <iostream>
 
-ClassicSceneGraphicsManager::ClassicSceneGraphicsManager(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
+ClassicSceneGraphicsManager::ClassicSceneGraphicsManager(
+    const std::shared_ptr<kku::Timeline<ClassicNote>> &timeline,
     const std::shared_ptr<ClassicGraphicsFactory> &factory,
-                                         const kku::microsec& visibility_offset) :
-    ClassicGraphicsManager(visibility_offset),
-    _sprite_container({Type::UP, Type::DOWN,
-                       Type::LEFT, Type::RIGHT},
+    const kku::microsec &visibility_offset)
+    : ClassicGraphicsManager(visibility_offset),
+      _sprite_container({Type::UP, Type::DOWN, Type::LEFT, Type::RIGHT},
                         factory),
-    _factory(factory),
-    _timeline(timeline)
+      _factory(factory), _timeline(timeline)
 {
     _timeline->expire(_first);
     _timeline->expire(_last);
@@ -49,14 +48,18 @@ void ClassicSceneGraphicsManager::update(const kku::microsec &offset)
     updateVisibleNotes(offset);
 }
 
-void ClassicSceneGraphicsManager::update(const kku::microsec& offset, ClassicArrowNote* note)
+void ClassicSceneGraphicsManager::update(const kku::microsec &offset,
+                                         ClassicArrowNote *note)
 {
     bool hasGraphics = (note->getElements()[0].sprite != nullptr);
 
     if (isVisiblyClose(note, offset) && !hasGraphics)
     {
         std::cout << note->getId() << ": set graphics!\n" << std::flush;
-        setGraphics(note->getElements(), kku::TimeRange{note->getPerfectOffset() - _visibility_offset, note->getPerfectOffset()});
+        setGraphics(
+            note->getElements(),
+            kku::TimeRange{note->getPerfectOffset() - _visibility_offset,
+                           note->getPerfectOffset()});
     }
     else
     {
@@ -65,8 +68,9 @@ void ClassicSceneGraphicsManager::update(const kku::microsec& offset, ClassicArr
     }
 }
 
-void ClassicSceneGraphicsManager::draw(const std::vector<ArrowElement>& elements) const
+void ClassicSceneGraphicsManager::draw(const ClassicArrowNote *const note) const
 {
+    const auto elements = note->getElements();
     for (std::size_t i = 0; i < elements.size(); ++i)
     {
         const auto &sprite = elements[i].sprite;
@@ -83,7 +87,8 @@ void ClassicSceneGraphicsManager::draw(const std::vector<ArrowElement>& elements
     }
 }
 
-void ClassicSceneGraphicsManager::setGraphics(std::vector<ArrowElement>& elements, kku::TimeRange&& range)
+void ClassicSceneGraphicsManager::setGraphics(
+    std::vector<ArrowElement> &elements, kku::TimeRange &&range)
 {
     for (auto &element : elements)
     {
@@ -92,15 +97,19 @@ void ClassicSceneGraphicsManager::setGraphics(std::vector<ArrowElement>& element
         element.sprite->setTrailPosition(kku::Point(0.f, 9.f));
 
         element.animations[ClassicNote::State::NONE] = nullptr;
-        element.animations[ClassicNote::State::FLYING] = std::make_shared<ClassicFlyingAnimationScenario>();
-        element.animations[ClassicNote::State::DYING] = std::make_shared<ClassicDyingAnimationScenario>();
+        element.animations[ClassicNote::State::FLYING] =
+            std::make_shared<ClassicFlyingAnimationScenario>();
+        element.animations[ClassicNote::State::DYING] =
+            std::make_shared<ClassicDyingAnimationScenario>();
         element.animations[ClassicNote::State::DEAD] = nullptr;
 
-        element.animations[ClassicNote::State::FLYING]->launch(element.sprite, range.begin, range.end);
+        element.animations[ClassicNote::State::FLYING]->launch(
+            element.sprite, range.begin, range.end);
     }
 }
 
-void ClassicSceneGraphicsManager::removeGraphics(std::vector<ArrowElement>& elements)
+void ClassicSceneGraphicsManager::removeGraphics(
+    std::vector<ArrowElement> &elements)
 {
     for (auto &element : elements)
     {
@@ -116,11 +125,12 @@ void ClassicSceneGraphicsManager::removeGraphics(std::vector<ArrowElement>& elem
 
 bool ClassicSceneGraphicsManager::nothingToDraw() const noexcept
 {
-    return _timeline->isExpired(_first)
-        || _timeline->isExpired(_last);
+    return _timeline->isExpired(_first) || _timeline->isExpired(_last);
 }
 
-bool ClassicSceneGraphicsManager::isVisiblyClose(const ClassicNote * const note, const kku::microsec& music_offset) const noexcept
+bool ClassicSceneGraphicsManager::isVisiblyClose(
+    const ClassicNote *const note,
+    const kku::microsec &music_offset) const noexcept
 {
     return (note->getPerfectOffset() - _visibility_offset) <= music_offset;
 }
@@ -133,7 +143,8 @@ void ClassicSceneGraphicsManager::fetchFirstNote(const kku::microsec& offset)
     if (offset < (*_first)->getPerfectOffset())
     {
         Iterator note_iterator = _first;
-        while (note_iterator != _timeline->begin() && isVisiblyClose(*note_iterator, offset))
+        while (note_iterator != _timeline->begin() &&
+               isVisiblyClose(*note_iterator, offset))
         {
             --note_iterator;
         }
@@ -142,10 +153,10 @@ void ClassicSceneGraphicsManager::fetchFirstNote(const kku::microsec& offset)
 
         auto note = *_first;
         const auto state = note->getState();
-        if (state != ClassicNote::State::FLYING
-        &&  state != ClassicNote::State::DYING
-        &&  state != ClassicNote::State::INITIAL
-        &&  offset <= note->getPerfectOffset())
+        if (state != ClassicNote::State::FLYING &&
+            state != ClassicNote::State::DYING &&
+            state != ClassicNote::State::INITIAL &&
+            offset <= note->getPerfectOffset())
         {
             note->setState(ClassicNote::State::INITIAL);
         }
@@ -170,17 +181,18 @@ void ClassicSceneGraphicsManager::fetchFirstNote(const kku::microsec& offset)
 void ClassicSceneGraphicsManager::fetchLastNote(const kku::microsec &offset)
 {
     Iterator note_iterator = _timeline->getTopNote();
-    while (!_timeline->isExpired(note_iterator) && isVisiblyClose(*note_iterator, offset))
+    while (!_timeline->isExpired(note_iterator) &&
+           isVisiblyClose(*note_iterator, offset))
     {
         if (nothingToDraw())
             _first = note_iterator;
 
         auto note = *note_iterator;
         const auto state = note->getState();
-        if (state != ClassicNote::State::FLYING
-        &&  state != ClassicNote::State::DYING
-        &&  state != ClassicNote::State::INITIAL
-        &&  offset <= note->getPerfectOffset())
+        if (state != ClassicNote::State::FLYING &&
+            state != ClassicNote::State::DYING &&
+            state != ClassicNote::State::INITIAL &&
+            offset <= note->getPerfectOffset())
         {
             note->setState(ClassicNote::State::INITIAL);
         }
@@ -191,7 +203,8 @@ void ClassicSceneGraphicsManager::fetchLastNote(const kku::microsec& offset)
     _last = note_iterator;
 }
 
-void ClassicSceneGraphicsManager::updateVisibleNotes(const kku::microsec& offset)
+void ClassicSceneGraphicsManager::updateVisibleNotes(
+    const kku::microsec &offset)
 {
     for (auto it = _first; it != _last; ++it)
         (*it)->update(offset);

src/modes/classicmode/graphics/classicscenegraphicsmanager.h

@@ -23,7 +23,7 @@ public:
     virtual void update(const kku::microsec& offset) override;
 
     virtual void update(const kku::microsec& offset, ClassicArrowNote* note) override;
-    virtual void draw(const std::vector<ArrowElement>& elements) const override;
+    virtual void draw(const ClassicArrowNote * const note) const override;
 
     void setGraphics(std::vector<ArrowElement>& elements, kku::TimeRange&& range);
     void removeGraphics(std::vector<ArrowElement>& elements);

src/modes/classicmode/graphics/classicselectiongraphics.cpp

@@ -1,9 +1,9 @@
 #include "classicselectiongraphics.h"
 #include "classicnotegraphics.h"
 
-ClassicSelectionGraphics::ClassicSelectionGraphics(ClassicSelectionGraphics::Init&& init) :
-    _fill_color(init.color),
-    _shape(init.shape)
+ClassicSelectionGraphics::ClassicSelectionGraphics(
+    ClassicSelectionGraphics::Init &&init)
+    : _fill_color(init.color), _shape(init.shape)
 {
     _shape->setColor(init.color);
 }
@@ -19,7 +19,8 @@ void ClassicSelectionGraphics::display() const
     _shape->display();
 }
 
-void ClassicSelectionGraphics::adjustTo(const std::shared_ptr<ClassicNoteGraphics>& sprite)
+void ClassicSelectionGraphics::adjustTo(
+    const std::shared_ptr<ClassicNoteGraphics> &sprite)
 {
     _shape->setRect(sprite->getRectangle()->getRect());
 }

src/modes/classicmode/graphics/classictimelinegraphicsmanager.cpp

@@ -3,15 +3,16 @@
 
 #include <iostream>
 
-ClassicTimelineGraphicsManager::ClassicTimelineGraphicsManager(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
+ClassicTimelineGraphicsManager::ClassicTimelineGraphicsManager(
+    const std::shared_ptr<kku::Timeline<ClassicNote>> &timeline,
     const std::shared_ptr<ClassicGraphicsFactory> &factory,
-                                         const kku::microsec& visibility_offset) :
-    ClassicGraphicsManager(visibility_offset),
-    _sprite_container({Type::UP, Type::DOWN,
-                       Type::LEFT, Type::RIGHT},
+    const kku::microsec &visibility_offset)
+    : ClassicGraphicsManager(visibility_offset),
+      _sprite_container({Type::UP, Type::DOWN, Type::LEFT, Type::RIGHT},
                         factory),
-    _factory(factory),
-    _timeline(timeline)
+      _factory(factory), _timeline(timeline),
+      _back_visibility_offset(static_cast<double>(visibility_offset) / 4.f),
+      _last_offset(0)
 {
     _timeline->expire(_first);
     _timeline->expire(_last);
@@ -19,37 +20,55 @@ ClassicTimelineGraphicsManager::ClassicTimelineGraphicsManager(const std::shared
 
 void ClassicTimelineGraphicsManager::input(kku::GameEvent &&input)
 {
-    if (nothingToDraw())
-        return;
-
-    for (auto it = _first; it != _last; ++it)
+    switch (input.event.type)
     {
-        (*it)->input(std::move(input));
+    default:
+        break;
+
+    case kku::SystemEvent::Type::KeyPress:
+    {
+        const auto key_data = std::get<kku::SystemEvent::Key>(input.event.data);
+        if (key_data.view == kku::SystemEvent::Key::Code::Add)
+        {
+            _visibility_offset += 200000;
+            _back_visibility_offset =
+                static_cast<double>(_visibility_offset) / 4.f;
+        }
+        else if (key_data.view == kku::SystemEvent::Key::Code::Subtract)
+        {
+            _visibility_offset -= 200000;
+            _back_visibility_offset =
+                static_cast<double>(_visibility_offset) / 4.f;
+        }
+        break;
+    }
     }
 }
 
 void ClassicTimelineGraphicsManager::display() const
 {
-    if (nothingToDraw())
-        return;
+    // if (nothingToDraw())
+    // return;
 
+    std::cout << "displaying on tl: ";
     for (auto it = _first; it != _last; ++it)
     {
-        const auto note = *it;
-        if (note->getState() != ClassicNote::State::DEAD)
-            note->draw(shared_from_this());
+        std::cout << (*it)->getId() << " ";
+        (*it)->draw(shared_from_this());
     }
+
+    std::cout << "\n" << std::flush;
 }
 
 void ClassicTimelineGraphicsManager::update(const kku::microsec &offset)
 {
+    _last_offset = offset;
     fetchLastNote(offset);
     fetchFirstNote(offset);
-
-    updateVisibleNotes(offset);
 }
 
-void ClassicTimelineGraphicsManager::update(const kku::microsec& offset, ClassicArrowNote* note)
+void ClassicTimelineGraphicsManager::update(const kku::microsec &offset,
+                                            ClassicArrowNote *note)
 {
     bool hasGraphics = (note->getElements()[0].sprite != nullptr);
 
@@ -63,103 +82,72 @@ void ClassicTimelineGraphicsManager::update(const kku::microsec& offset, Classic
     }
 }
 
-void ClassicTimelineGraphicsManager::draw(const std::vector<ArrowElement>& elements) const
+void ClassicTimelineGraphicsManager::draw(
+    const ClassicArrowNote *const note) const
 {
+    const double d_visibility_offset =
+        static_cast<double>(_last_offset + _visibility_offset);
+    const double d_back_visibility_offset =
+        static_cast<double>(_last_offset - _back_visibility_offset);
+
+    const double span = d_visibility_offset - d_back_visibility_offset;
+    const double note_span =
+        static_cast<double>(note->getPerfectOffset()) - d_visibility_offset;
+
+    const double percent = note_span / (span / 100.f);
+
+    const auto elements = note->getElements();
     for (std::size_t i = 0; i < elements.size(); ++i)
     {
-        const auto& sprite = elements[i].sprite;
+        auto timeline_sprite = _factory->createSprite(elements[i].type);
+        timeline_sprite->setPosition(
+            kku::Point{static_cast<int>(850 + 1280.f / 100.f * percent), 700});
 
-        if (i >= 1)
-        {
-            //const auto& neighbor_sprite = elements[i - 1].sprite;
-            //const auto c1 = neighbor_sprite->trailPosition();
-            //const auto c2 = sprite->trailPosition();
-            //_render_target->draw(makeLine(c1, c2));
-        }
-
-        sprite->display();
+        timeline_sprite->display();
     }
 }
 
 bool ClassicTimelineGraphicsManager::nothingToDraw() const noexcept
 {
-    return _timeline->isExpired(_first)
-        || _timeline->isExpired(_last);
+    return _timeline->isExpired(_first) || _timeline->isExpired(_last);
 }
 
-bool ClassicTimelineGraphicsManager::isVisiblyClose(const ClassicNote * const note, const kku::microsec& music_offset) const noexcept
+bool ClassicTimelineGraphicsManager::isVisiblyClose(
+    const ClassicNote *const note,
+    const kku::microsec &music_offset) const noexcept
 {
-    return (note->getPerfectOffset() - _visibility_offset) <= music_offset;
+    const auto &perfect_offset = note->getPerfectOffset();
+
+    return ((perfect_offset - _visibility_offset) <= music_offset) ||
+           ((perfect_offset + (_visibility_offset / 4.)) >= music_offset);
 }
 
 void ClassicTimelineGraphicsManager::fetchFirstNote(const kku::microsec &offset)
 {
-    if (nothingToDraw())
-        return;
+    // if (nothingToDraw())
+    // return;
 
-    if (offset < (*_first)->getPerfectOffset())
-    {
     Iterator note_iterator = _first;
-        while (note_iterator != _timeline->begin() && isVisiblyClose(*note_iterator, offset))
+    while (note_iterator != _timeline->begin() &&
+           isVisiblyClose(*note_iterator, offset))
     {
         --note_iterator;
     }
 
     _first = note_iterator;
-
-        auto note = *_first;
-        const auto state = note->getState();
-        if (state != ClassicNote::State::FLYING
-        &&  state != ClassicNote::State::DYING
-        &&  state != ClassicNote::State::INITIAL
-        &&  offset <= note->getPerfectOffset())
-        {
-            note->setState(ClassicNote::State::INITIAL);
-        }
-    }
-    else
-    {
-        Iterator note_iterator = _first;
-        while (note_iterator != _last)
-        {
-            auto note = *note_iterator;
-            if (note->getState() == ClassicNote::State::DEAD)
-            {
-               // note->removeGraphics(this);
-                ++_first;
-            }
-
-            ++note_iterator;
-        }
-    }
 }
 
 void ClassicTimelineGraphicsManager::fetchLastNote(const kku::microsec &offset)
 {
     Iterator note_iterator = _timeline->getTopNote();
-    while (!_timeline->isExpired(note_iterator) && isVisiblyClose(*note_iterator, offset))
+    while (!_timeline->isExpired(note_iterator) &&
+           isVisiblyClose(*note_iterator, offset))
     {
         if (nothingToDraw())
             _first = note_iterator;
 
-        auto note = *note_iterator;
-        const auto state = note->getState();
-        if (state != ClassicNote::State::FLYING
-        &&  state != ClassicNote::State::DYING
-        &&  state != ClassicNote::State::INITIAL
-        &&  offset <= note->getPerfectOffset())
-        {
-            note->setState(ClassicNote::State::INITIAL);
-        }
-
         ++note_iterator;
     }
 
     _last = note_iterator;
 }
-
-void ClassicTimelineGraphicsManager::updateVisibleNotes(const kku::microsec& offset)
-{
-    for (auto it = _first; it != _last; ++it)
-        (*it)->update(offset);
-}

src/modes/classicmode/graphics/classictimelinegraphicsmanager.h

@@ -23,7 +23,7 @@ public:
     virtual void update(const kku::microsec& offset) override;
 
     virtual void update(const kku::microsec& offset, ClassicArrowNote* note) override;
-    virtual void draw(const std::vector<ArrowElement>& elements) const override;
+    virtual void draw(const ClassicArrowNote * const note) const override;
 
 protected:
     kku::SpriteContainer<Type, ClassicGraphicsFactory, ClassicNoteGraphics> _sprite_container;
@@ -35,10 +35,11 @@ protected:
     Iterator _last;
 
     const std::shared_ptr<kku::Timeline<ClassicNote>> _timeline;
+    kku::microsec _back_visibility_offset;
+    kku::microsec _last_offset;
 
     inline bool nothingToDraw() const noexcept;
     inline bool isVisiblyClose(const ClassicNote * const note, const kku::microsec& music_offset) const noexcept;
     void fetchFirstNote(const kku::microsec& offset);
     void fetchLastNote(const kku::microsec& offset);
-    void updateVisibleNotes(const kku::microsec& offset);
 };

src/tools/src/beatutils.cpp

@@ -1,23 +1,21 @@
 #include "tools/beatutils.h"
-#include <numeric>
 #include <iostream>
+#include <numeric>
 
-auto beat_utils::calculateBeatRateInfo(const std::vector<kku::microsec>& approximate_deltas) -> BeatInfo
+auto beat_utils::calculateBeatRateInfo(
+    const std::vector<kku::microsec> &approximate_deltas) -> BeatInfo
 {
     if (approximate_deltas.empty())
         return {};
 
-    const long double sum = std::accumulate(approximate_deltas.begin(), approximate_deltas.end(), 0);
+    const long double sum = std::accumulate(approximate_deltas.begin(),
+                                            approximate_deltas.end(), 0);
     const long double amount = approximate_deltas.size();
 
     long double average = sum / amount;
 
     const int bpm = static_cast<int>(60000000. / average);
 
-
-    return BeatInfo
-    {
-        bpm,
-        static_cast<kku::microsec>(1. / static_cast<long double>(bpm) * 60000000.)
-    };
+    return BeatInfo{bpm, static_cast<kku::microsec>(
+                             1. / static_cast<long double>(bpm) * 60000000.)};
 }

src/tools/src/bpmcalculator.cpp

@@ -1,8 +1,8 @@
 #include "tools/bpmcalculator.h"
 
 #include <cmath>
-#include <numeric>
 #include <iostream>
+#include <numeric>
 
 BPMCalculator::BPMCalculator()
 {