From 7e97510f31e8d28ff989e1bfbfcf1ba2c4fba4f1 Mon Sep 17 00:00:00 2001
From: NaiJi <naijiworld@protonmail.com>
Date: Thu, 12 Aug 2021 22:10:52 +0300
Subject: [PATCH] Add editor state

---
 src/application.cpp         |  5 ++-
 src/gui/editor.cpp          | 61 +++++++++++++++++++++++++++++++++++++
 src/gui/editor.h            | 35 +++++++++++++++++++++
 src/gui/mainmenu.h          |  2 +-
 src/tools/bpmcalculator.cpp |  7 +++++
 src/tools/musicsfml.cpp     |  2 +-
 6 files changed, 109 insertions(+), 3 deletions(-)
 create mode 100644 src/gui/editor.cpp
 create mode 100644 src/gui/editor.h

diff --git a/src/application.cpp b/src/application.cpp
index a6a067b..1a1e75f 100644
--- a/src/application.cpp
+++ b/src/application.cpp
@@ -6,6 +6,7 @@
 
 #include "gui/mainmenu.h"
 #include "gui/gamestate.h"
+#include "gui/editor.h"
 
 #include "tools/musicsfml.h"
 
@@ -22,12 +23,14 @@ Application::Application() :
     _game_window.setMouseCursorGrabbed(false);
     _game_window.setVerticalSyncEnabled(true);
 
-    MainMenu::Callbacks callbacks = {[&](){ emplaceState(GUIState::Tag::GAME); }};
+    MainMenu::Callbacks callbacks = {[&](){ emplaceState(GUIState::Tag::EDITOR); }};
 
     const auto main_menu = std::make_shared<MainMenu>(_game_window, std::move(callbacks));
     const auto game_state = std::make_shared<GameState>(_game_window, _game, GameState::Callbacks());
+    const auto editor = std::make_shared<Editor>(_game_window, Editor::Callbacks(), std::make_unique<MusicSFML>());
     _states[GUIState::Tag::MAIN_MENU] = main_menu;
     _states[GUIState::Tag::GAME] = game_state;
+    _states[GUIState::Tag::EDITOR] = editor;
 
     _state_stack.emplace_back(_states.at(GUIState::Tag::MAIN_MENU));
 }
diff --git a/src/gui/editor.cpp b/src/gui/editor.cpp
new file mode 100644
index 0000000..8b71126
--- /dev/null
+++ b/src/gui/editor.cpp
@@ -0,0 +1,61 @@
+#include "editor.h"
+#include "widgets/button.h"
+#include "widgets/group.h"
+#include "tools/bpmcalculator.h"
+
+#include <iostream>
+
+Editor::Editor(sf::RenderWindow& game_window, Callbacks&& callbacks, std::unique_ptr<Music>&& music) :
+    _buttons(std::make_shared<Group>()),
+    _game_window(game_window),
+    _music(std::move(music)),
+    _bpm_calculator(std::make_unique<BPMCalculator>(_music))
+{
+    (void)callbacks;
+    const float window_width = game_window.getSize().x;
+    const float window_height = game_window.getSize().y;
+
+    _music->openFromFile("Uta-test.flac");
+    _music->setVolume(20);
+
+    std::shared_ptr<Button> button_start = std::make_shared<Button>("Start");
+    button_start->setRect(sf::FloatRect(window_width / 3., window_height / 7. * 2, window_width / 3., window_height / 7.));
+    button_start->setCallback([&]()
+    {
+        _bpm_calculator->startListening(0);
+    });
+
+    _buttons->addChild(button_start);
+}
+
+void Editor::input(const sf::Event& event)
+{
+    _buttons->input(event);
+
+    if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Space)
+    {
+        _bpm_calculator->click();
+        std::cout << _bpm_calculator->getCurrentApproximation() << '\n';
+    }
+}
+
+void Editor::update()
+{
+    _buttons->update();
+}
+
+void Editor::draw() const
+{
+    _game_window.draw(*_buttons);
+}
+
+void Editor::enter()
+{
+    _buttons->setVisibility();
+}
+
+void Editor::leave()
+{
+    _buttons->setVisibility(false);
+}
+
diff --git a/src/gui/editor.h b/src/gui/editor.h
new file mode 100644
index 0000000..3285a1c
--- /dev/null
+++ b/src/gui/editor.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "gui/state.h"
+#include "tools/music.h"
+
+#include <SFML/Graphics/RenderWindow.hpp>
+
+class Group;
+class BPMCalculator;
+
+class Editor : public GUIState
+{
+public:
+
+    struct Callbacks
+    {
+        std::function<void(void)> onAppendGameState;
+    };
+
+    explicit Editor(sf::RenderWindow& game_window, Callbacks&& callbacks, std::unique_ptr<Music>&& music);
+    virtual void input(const sf::Event& event) override;
+    virtual void update() override;
+    virtual void draw() const override;
+
+    virtual void enter() override;
+    virtual void leave() override;
+
+private:
+    std::shared_ptr<Group> _buttons;
+    sf::RenderWindow& _game_window;
+
+    std::shared_ptr<Music> _music;
+    std::shared_ptr<BPMCalculator> _bpm_calculator;
+};
+
diff --git a/src/gui/mainmenu.h b/src/gui/mainmenu.h
index d1d96db..b37e7e0 100644
--- a/src/gui/mainmenu.h
+++ b/src/gui/mainmenu.h
@@ -14,7 +14,7 @@ public:
         std::function<void(void)> onAppendGameState;
     };
 
-    MainMenu(sf::RenderWindow& game_window, Callbacks&& callbacks);
+    explicit MainMenu(sf::RenderWindow& game_window, Callbacks&& callbacks);
     virtual void input(const sf::Event& event) override;
     virtual void update() override;
     virtual void draw() const override;
diff --git a/src/tools/bpmcalculator.cpp b/src/tools/bpmcalculator.cpp
index 21a8caf..30d9e02 100644
--- a/src/tools/bpmcalculator.cpp
+++ b/src/tools/bpmcalculator.cpp
@@ -12,6 +12,8 @@ BPMCalculator::BPMCalculator(const std::shared_ptr<Music>& music) :
 
 void BPMCalculator::setMusic(const std::shared_ptr<Music>& music)
 {
+    _deltas.clear();
+    _previous_click_offset = 0;
     _music = music;
 }
 
@@ -32,6 +34,8 @@ void BPMCalculator::click()
 {
     const microsec click_offset = _music->fetchOffset();
 
+    std::cout << click_offset << "\n\n\n\n";
+
     if (_previous_click_offset == 0)
     {
         _previous_click_offset = click_offset;
@@ -48,6 +52,9 @@ int BPMCalculator::getCurrentApproximation() const
 {
     const microsec sum = std::accumulate(_deltas.begin(), _deltas.end(), 0);
 
+    std::cout << "S: " << sum << "  _deltas.size(): " << _deltas.size();
+    std::cout << "\n    " << (static_cast<float>(sum) / static_cast<float>(_deltas.size())) << '\n';
+
     return (sum == 0)
          ?  0.
          :  static_cast<int>(static_cast<float>(MICROSECONDS_IN_MINUTE) / (static_cast<float>(sum) / static_cast<float>(_deltas.size())));
diff --git a/src/tools/musicsfml.cpp b/src/tools/musicsfml.cpp
index 2c00bc9..3d08599 100644
--- a/src/tools/musicsfml.cpp
+++ b/src/tools/musicsfml.cpp
@@ -34,7 +34,7 @@ void MusicSFML::setVolume(int volume)
 
 void MusicSFML::setOffset(const microsec& offset)
 {
-    _previous_frame_offset += (offset - _absolute_offset);
+    //_previous_frame_offset += (offset - _absolute_offset);
     _music.setPlayingOffset(sf::microseconds(offset));
 }