feat: preferences and saving

1 files changed, 55 insertions, 1 deletions

diff --git a/src/states/simulation_state.cpp b/src/states/simulation_state.cpp
index ff7f658..e71d498 100644
--- a/src/states/simulation_state.cpp
+++ b/src/states/simulation_state.cpp
@@ -3,6 +3,7 @@
 #include "core/application.h"
 #include "core/window.h"
 #include "core/event.h"
+#include "core/settings_manager.h"
 
 #include <imgui.h>
 #include <GLFW/glfw3.h>
@@ -12,6 +13,17 @@ namespace Donut
     void SimulationState::on_enter()
     {
         DONUT_INFO("Entering Simulation State");
+        
+        const auto& settings = SettingsManager::get_settings_const();
+        
+        m_engine.set_target_fps(settings.simulation.target_fps);
+        m_engine.set_compute_height(settings.simulation.compute_height);
+        m_engine.set_max_steps_moving(settings.simulation.max_steps_moving);
+        m_engine.set_max_steps_static(settings.simulation.max_steps_static);
+        m_engine.set_early_exit_distance(settings.simulation.early_exit_distance);
+        m_engine.get_gravity() = settings.simulation.gravity_enabled;
+        
+        m_engine.update_compute_dimensions();
         m_initialized = true;
     }
     
@@ -92,8 +104,22 @@ namespace Donut
         ImGui::Begin("Simulation Controls", nullptr, ImGuiWindowFlags_NoCollapse);
         
         ImGui::TextColored(ImVec4(0.8f, 0.8f, 1.0f, 1.0f), "Black Hole Simulation");
+        ImGui::SameLine();
         if (ImGui::Button("Back to Config"))
             Application::get().get_state_manager().switch_to_state("Config");
+        ImGui::SameLine();
+        if (ImGui::Button("Save Settings"))
+        {
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.target_fps = m_engine.get_target_fps();
+            settings.compute_height = m_engine.get_compute_height();
+            settings.max_steps_moving = m_engine.get_max_steps_moving();
+            settings.max_steps_static = m_engine.get_max_steps_static();
+            settings.early_exit_distance = m_engine.get_early_exit_distance();
+            settings.gravity_enabled = m_engine.get_gravity();
+            SettingsManager::set_simulation_settings(settings);
+            DONUT_INFO("Simulation settings saved manually");
+        }
 
         ImGui::Separator();
         
@@ -106,7 +132,12 @@ namespace Donut
         
         int target_fps = m_engine.get_target_fps();
         if (ImGui::SliderInt("Target FPS", &target_fps, 30, 120))
+        {
             m_engine.set_target_fps(target_fps);
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.target_fps = target_fps;
+            SettingsManager::set_simulation_settings(settings);
+        }
         
         ImGui::Spacing();
         
@@ -122,6 +153,9 @@ namespace Donut
         {
             m_engine.set_compute_height(compute_height);
             m_engine.update_compute_dimensions();
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.compute_height = compute_height;
+            SettingsManager::set_simulation_settings(settings);
         }
         
         ImGui::TextColored(ImVec4(0.7f, 0.7f, 0.7f, 1.0f), "Compute Width: %d (auto-calculated)", m_engine.get_compute_width());
@@ -133,13 +167,28 @@ namespace Donut
         
         int max_steps_moving = m_engine.get_max_steps_moving();
         if (ImGui::SliderInt("Max Steps (Moving)", &max_steps_moving, 1000, 60000))
+        {
             m_engine.set_max_steps_moving(max_steps_moving);
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.max_steps_moving = max_steps_moving;
+            SettingsManager::set_simulation_settings(settings);
+        }
         int max_steps_static = m_engine.get_max_steps_static();
         if (ImGui::SliderInt("Max Steps (Static)", &max_steps_static, 1000, 30000))
+        {
             m_engine.set_max_steps_static(max_steps_static);
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.max_steps_static = max_steps_static;
+            SettingsManager::set_simulation_settings(settings);
+        }
         float early_exit_distance = m_engine.get_early_exit_distance();
         if (ImGui::SliderFloat("Early Exit Distance", &early_exit_distance, 1e11f, 1e13f, "%.2e"))
+        {
             m_engine.set_early_exit_distance(early_exit_distance);
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.early_exit_distance = early_exit_distance;
+            SettingsManager::set_simulation_settings(settings);
+        }
         
         ImGui::Spacing();
         
@@ -147,7 +196,12 @@ namespace Donut
         ImGui::Separator();
         
         bool& gravity = m_engine.get_gravity();
-        ImGui::Checkbox("Gravity Enabled", &gravity);
+        if (ImGui::Checkbox("Gravity Enabled", &gravity))
+        {
+            SimulationSettings settings = SettingsManager::get_settings_const().simulation;
+            settings.gravity_enabled = gravity;
+            SettingsManager::set_simulation_settings(settings);
+        }
         
         ImGui::Spacing();