Implement selection manager

src/modes/classicmode/classicfactory.cpp

@@ -6,6 +6,7 @@
 #include "core/timeline.h"
 #include "game/classicgame.h"
 #include "editor/classiceditor.h"
+#include "editor/selectionmanager.h"
 
 
 std::unique_ptr<kku::Game> classic::getGame(const std::shared_ptr<kku::CoreFactory>& core_factory)
@@ -15,6 +16,7 @@ std::unique_ptr<kku::Game> classic::getGame(const std::shared_ptr<kku::CoreFacto
 
     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>();
     const auto graphics_manager = std::make_shared<ClassicSceneGraphicsManager>(timeline, factory, visibility_offset);
 
     return std::make_unique<ClassicGame>(timeline, graphics_manager);
@@ -27,7 +29,8 @@ std::unique_ptr<kku::Editor> classic::getEditor(const std::shared_ptr<kku::CoreF
 
     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>();
     const auto graphics_manager = std::make_shared<ClassicSceneGraphicsManager>(timeline, factory, visibility_offset);
 
-    return std::make_unique<ClassicEditor>(timeline, graphics_manager);
+    return std::make_unique<ClassicEditor>(timeline, graphics_manager, selection_manager);
 }

src/modes/classicmode/classicnote.cpp

@@ -1,9 +1,8 @@
-#include "classicnote.h"
+#include "classicmode/classicnote.h"
 
 ClassicNote::ClassicNote(NoteInitializer &&init) :
     Note(init.perfect_offset),
-    _state(State::NONE),
-    _context(init.context)
+    _state(State::NONE)
 {}
 
 void ClassicNote::setState(ClassicNote::State state) noexcept

src/modes/classicmode/editor/classiceditor.cpp

@@ -1,8 +1,8 @@
 #include "classiceditor.h"
 
-#include "game/classicmocknote.h"
+#include "classicmocknote.h"
 #include "graphics/classicgraphicsmanager.h"
-#include "game/classicmapcreator.h"
+#include "editor/selectionmanager.h"
 
 // Replace with interface by dependency injection
 #include "graphics/animations/classicflyinganimationscenario.h"
@@ -10,9 +10,11 @@
 //
 
 ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
-                             const std::shared_ptr<ClassicGraphicsManager>& graphics_manager) :
+                             const std::shared_ptr<ClassicGraphicsManager>& graphics_manager,
+                             const std::shared_ptr<SelectionManager>& selection_manager) :
     _timeline(timeline),
     _graphics_manager(graphics_manager),
+    _selection_manager(selection_manager),
     _selected_type(Type::UP),
     _current_time(0),
     _scroll_step(500000)
@@ -66,7 +68,7 @@ ClassicEditor::ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>&
 
         init.elements = {element};
 
-        notes.insert(new ClassicMockNote(std::move(init)));
+        notes.insert(new ClassicMockNote(std::move(init), _selection_manager));
 
         bpm_iterator += tempo_interval;
         x += 70;
@@ -97,6 +99,26 @@ void ClassicEditor::input(kku::GameEvent&& 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::LControl)
+        {
+            _selection_manager->enableMultiselection(true);
+        }
+        break;
+    }
+
+    case kku::SystemEvent::Type::KeyRelease:
+    {
+        const auto key_data = std::get<kku::SystemEvent::Key>(input.event.data);
+        if (key_data.view == kku::SystemEvent::Key::Code::LControl)
+        {
+            _selection_manager->enableMultiselection(false);
+        }
+        break;
+    }
+
     case kku::SystemEvent::Type::MousePress:
     {
         const auto note = _timeline->getNoteBy(_current_time);
@@ -107,7 +129,6 @@ void ClassicEditor::input(kku::GameEvent&& input)
             init.initializer.intervals = {};
             init.initializer.perfect_offset = input.timestamp;
             init.hold = false;
-            init.initializer.context = nullptr;
 
             element.element.position = std::get<kku::SystemEvent::Mouse>(event.data).position;
             element.element.falling_curve_interpolation = {};
@@ -119,10 +140,14 @@ void ClassicEditor::input(kku::GameEvent&& input)
 
             init.elements = { element };
 
-            _timeline->insertNote(new ClassicMockNote(std::move(init)));
+            _timeline->insertNote(new ClassicMockNote(std::move(init), _selection_manager));
         }
-        else
-            _graphics_manager->input(std::move(input));
+
+        if (!_selection_manager->isMultiselectionEnabled())
+            _selection_manager->discard();
+
+        _graphics_manager->input(std::move(input));
+
         break;
     }
 

src/modes/classicmode/editor/classiceditor.h

@@ -5,16 +5,18 @@
 #include "core/editor.h"
 #include "core/timeline.h"
 
-#include "game/classicnote.h"
+#include "classicmode/classicnote.h"
 #include "classicmode/classicactions.h"
 
 class ClassicGraphicsManager;
+class SelectionManager;
 
 class ClassicEditor : public kku::Editor
 {
 public:
     explicit ClassicEditor(const std::shared_ptr<kku::Timeline<ClassicNote>>& timeline,
-                           const std::shared_ptr<ClassicGraphicsManager>& graphics_manager);
+                           const std::shared_ptr<ClassicGraphicsManager>& graphics_manager,
+                           const std::shared_ptr<SelectionManager>& selection_manager);
 
     virtual void input(kku::GameEvent&& input) override;
     virtual void update(kku::UpdateData&& updatedata) override;
@@ -26,10 +28,9 @@ public:
 private:
     inline kku::microsec adjustOffset(kku::microsec offset) const noexcept;
 
-    Context _context;
-
     const std::shared_ptr<kku::Timeline<ClassicNote>> _timeline;
     const std::shared_ptr<ClassicGraphicsManager> _graphics_manager;
+    const std::shared_ptr<SelectionManager> _selection_manager;
 
     Type _selected_type;
     kku::microsec _current_time;

src/modes/classicmode/editor/classicmocknote.cpp

@@ -1,10 +1,11 @@
 #include "classicmocknote.h"
 #include "graphics/classicscenegraphicsmanager.h"
 #include "graphics/animations/classicanimationscenario.h"
-#include "holdmanager.h"
+#include "editor/selectionmanager.h"
 
-ClassicMockNote::ClassicMockNote(ArrowNoteInitializer&& init) :
-    ClassicNote(std::move(init.initializer))
+ClassicMockNote::ClassicMockNote(ArrowNoteInitializer&& init, const std::shared_ptr<SelectionManager>& selection_manager) :
+    ClassicNote(std::move(init.initializer)),
+    _selection_manager(selection_manager)
 {
     _elements.resize(init.elements.size());
 
@@ -32,15 +33,29 @@ void ClassicMockNote::input(kku::GameEvent&& input)
 
     case kku::SystemEvent::Type::MousePress:
     {
+        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 : _elements)
         {
             if (element.sprite->getRectangle()->contains(position))
             {
                 element.selected = !element.selected;
-                element.selection->toggle(element.selected);
+                selection_changed = true;
+                if (element.selected)
+                    ++amount_selected;
             }
         }
+
+        if (selection_changed)
+        {
+            if (amount_selected > 0)
+                _selection_manager->fetch(this);
+            else
+                _selection_manager->remove(this);
+        }
+               
         break;
     }
 
@@ -83,3 +98,8 @@ void ClassicMockNote::setGraphics(ClassicGraphicsManager * const manager, kku::T
 {
     manager->setGraphics(_elements, std::move(range));
 }
+
+std::vector<MockElement>& ClassicMockNote::getElements()
+{
+    return _elements;
+}

src/modes/classicmode/editor/classicmocknote.h

@@ -1,15 +1,16 @@
 #pragma once
 
-#include "arrowelement.h"
-#include "classicnote.h"
+#include "classicmode/classicnote.h"
 
 #include "mockelement.h"
-#include "initializers/arrownoteinitializer.h"
+#include "classicmode/arrownoteinitializer.h"
+
+class SelectionManager;
 
 class ClassicMockNote : public ClassicNote
 {
 public:
-    explicit ClassicMockNote(ArrowNoteInitializer&& init);
+    explicit ClassicMockNote(ArrowNoteInitializer&& init, const std::shared_ptr<SelectionManager>& selection_manager);
     virtual ~ClassicMockNote() = default;
 
     virtual bool isActive(const kku::microsec& offset) const override;
@@ -19,9 +20,11 @@ public:
     virtual void display(const ClassicGraphicsManager * const manager) const override;
     virtual void setGraphics(ClassicGraphicsManager * const manager, kku::TimeRange&& range) override;
 
+    std::vector<MockElement>& getElements();
+
 private:
+    const std::shared_ptr<SelectionManager> _selection_manager;
     std::vector<MockElement> _elements;
-    bool _is_selected;
 };
 
 using MockElements = std::vector<MockElement>;

src/modes/classicmode/editor/selectionmanager.cpp

@@ -0,0 +1,53 @@
+#include "selectionmanager.h"
+#include "classicmocknote.h"
+#include "mockelement.h"
+#include "graphics/classicselection.h"
+#include <algorithm>
+
+SelectionManager::SelectionManager() :
+    _multiselection_enabled(false)
+{}
+
+void SelectionManager::discard()
+{
+    for (const auto& note : _selected_notes)
+        for (auto& element : note->getElements())
+            element.selected = false;
+
+    _selected_notes.clear();
+}
+
+void SelectionManager::fetch(ClassicMockNote * const note)
+{
+    bool already_there = std::any_of(_selected_notes.begin(), _selected_notes.end(),
+                                     [&note](const auto& selected_note)
+                                     {
+                                         return note == selected_note;
+                                     });
+
+    if (!already_there)
+        _selected_notes.emplace_back(note);
+}
+
+void SelectionManager::remove(ClassicMockNote * const note)
+{
+    for (std::size_t i = 0; i < _selected_notes.size(); ++i)
+    {
+        if (note == _selected_notes.at(i))
+        {
+            _selected_notes[i] = std::move(_selected_notes.back());
+            _selected_notes.pop_back();
+            break;
+        }
+    }
+}
+
+void SelectionManager::enableMultiselection(bool enable)
+{
+    _multiselection_enabled = enable;
+}
+
+bool SelectionManager::isMultiselectionEnabled() const
+{
+    return _multiselection_enabled;
+}

src/modes/classicmode/editor/selectionmanager.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "classicmocknote.h"
+
+#include <memory>
+#include <vector>
+
+class SelectionManager
+{
+public:
+    explicit SelectionManager();
+
+    // Remove whole selection completely
+    void discard();
+
+    void fetch(ClassicMockNote * const note);
+    void remove(ClassicMockNote * const note);
+
+    void enableMultiselection(bool enable = true);
+    bool isMultiselectionEnabled() const;
+
+private:
+    std::vector<ClassicMockNote*> _selected_notes;
+    bool _multiselection_enabled;
+};

src/modes/classicmode/game/classicarrownote.cpp

@@ -3,9 +3,10 @@
 #include "graphics/animations/classicanimationscenario.h"
 #include "holdmanager.h"
 
-ClassicArrowNote::ClassicArrowNote(ArrowNoteInitializer&& init) :
+ClassicArrowNote::ClassicArrowNote(ArrowNoteInitializer&& init, const std::shared_ptr<HoldManager>& hold_manager) :
     ClassicNote(std::move(init.initializer)),
     _evaluator(init.initializer.intervals, _perfect_offset),
+    _hold_manager(hold_manager),
     _is_hold(init.hold)
 {
     _elements.resize(init.elements.size());
@@ -53,7 +54,7 @@ void ClassicArrowNote::input(kku::GameEvent&& input)
     {
         grade = _evaluator.calculatePrecision(input.timestamp);
         if (isHold())
-            _context->hold_manager->emplace(this);
+            _hold_manager->emplace(this);
     }
 
     if (all_pressed || !input_valid)

src/modes/classicmode/game/classicarrownote.h

@@ -1,9 +1,11 @@
 #pragma once
 
 #include "arrowelement.h"
-#include "classicnote.h"
+#include "classicmode/classicnote.h"
 
-#include "initializers/arrownoteinitializer.h"
+#include "classicmode/arrownoteinitializer.h"
+
+class HoldManager;
 
 class ClassicArrowNote : public ClassicNote
 {
@@ -15,7 +17,7 @@ public:
             BAD
     };
 
-    explicit ClassicArrowNote(ArrowNoteInitializer&& init);
+    explicit ClassicArrowNote(ArrowNoteInitializer&& init, const std::shared_ptr<HoldManager>& hold_manager);
     virtual ~ClassicArrowNote() = default;
 
     virtual bool isActive(const kku::microsec& offset) const override;
@@ -31,6 +33,7 @@ public:
 
 private:
     const kku::PrecisionEvaluator<Grade> _evaluator;
+    const std::shared_ptr<HoldManager> _hold_manager;
 
     std::vector<ArrowElement> _elements;
     bool _is_hold;

src/modes/classicmode/game/classicgame.cpp

@@ -1,5 +1,5 @@
 #include "classicgame.h"
-#include "classicnote.h"
+#include "classicmode/classicnote.h"
 #include "classicmapcreator.h"
 #include "graphics/classicscenegraphicsmanager.h"
 #include "holdmanager.h"
@@ -16,9 +16,7 @@ ClassicGame::~ClassicGame()
 
 void ClassicGame::run()
 {
-    _context.hold_manager = _hold_manager;
-
-    auto beatmap = classic::createBeatmap("aa", _context);
+    auto beatmap = classic::createBeatmap("aa", _hold_manager);
     _timeline->setNotes(beatmap.notes);
 }
 

src/modes/classicmode/game/classicgame.h

@@ -5,10 +5,7 @@
 
 #include "core/game.h"
 #include "core/timeline.h"
-
-#include "classicmode/context.h"
-#include "classicnote.h"
-
+#include "classicmode/classicnote.h"
 #include "classicmode/classicactions.h"
 
 class ClassicGraphicsManager;
@@ -30,7 +27,5 @@ public:
 private:
     const std::shared_ptr<kku::Timeline<ClassicNote>> _timeline;
     const std::shared_ptr<ClassicGraphicsManager> _graphics_manager;
-    std::shared_ptr<HoldManager> _hold_manager;
-
-    Context _context;
+    const std::shared_ptr<HoldManager> _hold_manager;
 };

src/modes/classicmode/game/classicmapcreator.cpp

@@ -6,7 +6,7 @@
 #include "graphics/animations/classicdyinganimationscenario.h"
 //
 
-auto classic::createBeatmap(const std::string& filepath, const Context &context) -> Beatmap
+auto classic::createBeatmap(const std::string& filepath, const std::shared_ptr<HoldManager>& hold_manager) -> Beatmap
 {
     (void) filepath;
 
@@ -36,7 +36,6 @@ auto classic::createBeatmap(const std::string& filepath, const Context &context)
         init.initializer.intervals = input_intervals;
         init.initializer.perfect_offset = bpm_iterator;
         init.hold = false;
-        init.initializer.context = &context;
 
         element.element.position = kku::Point(x, 390.f);
         element.element.falling_curve_interpolation = {};
@@ -60,7 +59,7 @@ auto classic::createBeatmap(const std::string& filepath, const Context &context)
 
         init.elements = {element};
 
-        notes.insert(new ClassicArrowNote(std::move(init)));
+        notes.insert(new ClassicArrowNote(std::move(init), hold_manager));
 
         bpm_iterator += tempo_interval;
         x += 70;

src/modes/classicmode/game/classicmapcreator.h

@@ -3,7 +3,9 @@
 #include <set>
 
 #include "core/time.h"
-#include "classicnote.h"
+#include "classicmode/classicnote.h"
+
+class HoldManager;
 
 namespace classic
 {
@@ -14,7 +16,7 @@ struct Beatmap
     kku::microsec visibility_offset;
 };
 
-Beatmap createBeatmap(const std::string& filepath, const Context& context);
+Beatmap createBeatmap(const std::string& filepath, const std::shared_ptr<HoldManager>& hold_manager);
 
 }
 

src/modes/classicmode/graphics/classicgraphicsfactory.cpp

@@ -52,5 +52,5 @@ std::shared_ptr<ClassicSprite> ClassicGraphicsFactory::createSprite(Type type) c
 std::shared_ptr<ClassicSelection> ClassicGraphicsFactory::createSelection() const
 {
     const auto shape = _core_factory->getRectangle();
-    return std::make_shared<ClassicSelection>(ClassicSelection::Init{shape, kku::Color{51, 153, 255, 0}});
+    return std::make_shared<ClassicSelection>(ClassicSelection::Init{shape, kku::Color{51, 153, 255, 120}});
 }

src/modes/classicmode/graphics/classicscenegraphicsmanager.cpp

@@ -1,6 +1,6 @@
 #include "classicscenegraphicsmanager.h"
 
-#include "game/mockelement.h"
+#include "editor/mockelement.h"
 #include "game/arrowelement.h"
 
 #include "graphics/animations/classicflyinganimationscenario.h"
@@ -92,7 +92,6 @@ void ClassicSceneGraphicsManager::display(const std::vector<MockElement>& elemen
     for (std::size_t i = 0; i < elements.size(); ++i)
     {
         const auto& sprite = elements[i].sprite;
-        const auto& selection = elements[i].selection;
 
         if (i >= 1)
         {
@@ -105,7 +104,8 @@ void ClassicSceneGraphicsManager::display(const std::vector<MockElement>& elemen
         }
 
         sprite->display();
-        selection->display();
+        if (elements[i].selected)
+            elements[i].selection->display();
     }
 }
 

src/modes/classicmode/graphics/classicscenegraphicsmanager.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "game/classicnote.h"
+#include "classicmode/classicnote.h"
 #include "graphics/classicgraphicsmanager.h"
 #include "graphics/classicgraphicsfactory.h"
 #include "core/timeline.h"

src/modes/classicmode/graphics/classicselection.cpp

@@ -11,7 +11,7 @@ ClassicSelection::ClassicSelection(ClassicSelection::Init&& init) :
 void ClassicSelection::reset()
 {
     _shape->setPosition(kku::Point{0, 0});
-    _shape->setColor(kku::Color{0, 0, 0, 0});
+    _shape->setColor(kku::Color{51, 153, 255, 120});
 }
 
 void ClassicSelection::display() const
@@ -23,12 +23,3 @@ void ClassicSelection::adjustTo(const std::shared_ptr<ClassicSprite>& sprite)
 {
     _shape->setRect(sprite->getRectangle()->getRect());
 }
-
-void ClassicSelection::toggle(bool selected)
-{
-    _fill_color.alpha = selected
-                      ? 120
-                      : 0;
-
-    _shape->setColor(_fill_color);
-}

src/modes/classicmode/graphics/classicselection.h

@@ -23,7 +23,6 @@ public:
     virtual void display() const override;
 
     void adjustTo(const std::shared_ptr<ClassicSprite>& sprite);
-    void toggle(bool selected);
 
 protected:
     kku::Color _fill_color;

src/modes/classicmode/include/classicmode/classicnote.h

@@ -3,7 +3,6 @@
 #include "core/note.h"
 #include "core/precisionevaluator.h"
 #include "classicmode/noteinitializer.h"
-#include "classicmode/context.h"
 
 class ClassicGraphicsManager;
 
@@ -36,5 +35,4 @@ public:
 
 protected:
     State _state;
-    const Context *_context;
 };

src/modes/classicmode/include/classicmode/context.h

@@ -1,10 +0,0 @@
-#pragma once
-
-#include <memory>
-
-class HoldManager;
-
-struct Context
-{
-    std::shared_ptr<HoldManager> hold_manager;
-};

src/modes/classicmode/include/classicmode/noteinitializer.h

@@ -3,12 +3,10 @@
 #include <memory>
 #include <vector>
 
-#include "context.h"
 #include "core/time.h"
 
 struct NoteInitializer
 {
-    const Context *context;
     std::vector<kku::microsec> intervals;
     kku::microsec perfect_offset = 0;
 };