settings_menu: Create a dedicated class for the settings

src/settings_menu.cpp

@@ -0,0 +1,122 @@
+/*
+* File name: settings_menu.cpp
+* Author: lejulien
+* Date created: 01-01-1970 00:59:59
+// Date modified: 12-01-2026 22:21:49
+* ------
+*/
+
+#include <nlohmann/json.hpp>
+
+#include <imgui.h>
+#include <raylib.h>
+#include <rlImGui.h>
+
+#include <settings_menu.hpp>
+#include <context.hpp>
+#include <world.hpp>
+#include <rules.hpp>
+#include <render.hpp>
+
+namespace gol {
+
+SettingsMenu::SettingsMenu(std::shared_ptr<ctx> context): context_(context) {
+  fps_ctrl_ = context->config_json["fps"].get<int>();
+  cell_size_ctrl_ = context->config_json["cell_size"].get<int>();
+  settings_window_ = false;
+  width_ctrl_ = context->config_json["screen_width"].get<int>();
+  height_ctrl_ = context->config_json["screen_height"].get<int>();
+  dark_theme_ctrl_ = context->config_json["dark_theme"].get<bool>();
+  apply_ctrl_ = false;
+}
+
+void SettingsMenu::update() {
+  if (apply_ctrl_) {
+    bool resize_needed = false;
+    context_->config_json["fps"] = fps_ctrl_;
+    if (context_->config_json["screen_width"].get<int>() != width_ctrl_ ||
+        context_->config_json["screen_height"].get<int>() != height_ctrl_) {
+      context_->config_json["screen_width"] = width_ctrl_;
+      context_->config_json["screen_height"] = height_ctrl_;
+      rlImGuiShutdown();
+      SetWindowSize(width_ctrl_, height_ctrl_);
+      rlImGuiSetup(dark_theme_ctrl_);
+      resize_needed = true;
+    }
+    if (cell_size_ctrl_ != context_->config_json["cell_size"].get<int>() ||
+        resize_needed) {
+      context_->world->resize(context_->config_json["screen_width"].get<int>() / cell_size_ctrl_,
+                   context_->config_json["screen_height"].get<int>() / cell_size_ctrl_);
+      context_->render->updateCellSize(cell_size_ctrl_);
+      context_->rules->newWorld(context_->world);
+      context_->config_json["cell_size"] = cell_size_ctrl_;
+    }
+    if (dark_theme_ctrl_ != context_->config_json["dark_theme"]) {
+      rlImGuiShutdown();
+      rlImGuiSetup(dark_theme_ctrl_);
+      context_->config_json["dark_theme"] = dark_theme_ctrl_;
+    }
+    apply_ctrl_ = false;
+    settings_window_ = false;
+  }
+}
+
+void SettingsMenu::display() {
+  if (settings_window_) {
+    ImGuiWindowFlags settings_flags =
+        ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoResize;
+    ImGui::Begin("Settings", &settings_window_, settings_flags);
+    ImGui::SliderInt("Window Width", &width_ctrl_, 800, 1920);
+    ImGui::SliderInt("Window Height", &height_ctrl_, 600, 1200);
+    ImGui::SliderInt("FPS", &fps_ctrl_, 0, 30);
+    ImGui::SliderInt("Cell Size", &cell_size_ctrl_, 4, 100);
+    ImGui::Checkbox("Dark Theme", &dark_theme_ctrl_);
+    if (ImGui::Button("Save & Apply")) {
+      apply_ctrl_ = true;
+    }
+    ImGui::End();
+  }
+}
+
+bool SettingsMenu::isOpen() {
+  return settings_window_;
+}
+
+void SettingsMenu::Toogle() {
+  settings_window_ = !settings_window_;
+}
+
+// Getters/Setters
+int SettingsMenu::getFPS() {
+  return fps_ctrl_;
+}
+
+void SettingsMenu::setFPS(int new_fps) {
+  fps_ctrl_ = new_fps;
+}
+
+int SettingsMenu::getCellSize() {
+  return cell_size_ctrl_;
+}
+
+void SettingsMenu::setCellSize(int new_cell_size) {
+  cell_size_ctrl_ = new_cell_size;
+}
+
+int SettingsMenu::getWidth() {
+  return width_ctrl_;
+}
+
+void SettingsMenu::setWidth(int new_width) {
+  width_ctrl_ = new_width;
+}
+
+int SettingsMenu::getHeight() {
+  return height_ctrl_;
+}
+
+void SettingsMenu::setHeight(int new_height) {
+  height_ctrl_ = new_height;
+}
+
+} // namespace gol