feat: themes and better UI

1 files changed, 38 insertions, 24 deletions

diff --git a/src/states/simulation_state.cpp b/src/states/simulation_state.cpp
index ecb2898..ff7f658 100644
--- a/src/states/simulation_state.cpp
+++ b/src/states/simulation_state.cpp
@@ -86,32 +86,36 @@ namespace Donut
     
     void SimulationState::on_im_ui_render()
     {
-        ImGui::Begin("Simulation Controls");
+        ImGui::SetNextWindowSize(ImVec2(400, 600), ImGuiCond_FirstUseEver);
+        ImGui::SetNextWindowPos(ImVec2(ImGui::GetIO().DisplaySize.x - 420, 20), ImGuiCond_FirstUseEver);
         
-        ImGui::Text("Black Hole Simulation");
+        ImGui::Begin("Simulation Controls", nullptr, ImGuiWindowFlags_NoCollapse);
+        
+        ImGui::TextColored(ImVec4(0.8f, 0.8f, 1.0f, 1.0f), "Black Hole Simulation");
         if (ImGui::Button("Back to Config"))
             Application::get().get_state_manager().switch_to_state("Config");
 
         ImGui::Separator();
         
-        ImGui::Text("Simulation Info:");
-        ImGui::Text("FPS: %.1f", ImGui::GetIO().Framerate);
-        ImGui::Text("Frame Time: %.3f ms", 1000.0f / ImGui::GetIO().Framerate);
-        ImGui::Text("Resolution: %dx%d", m_engine.get_width(), m_engine.get_height());
-        ImGui::Text("Compute Resolution: %dx%d", m_engine.get_compute_width(), m_engine.get_compute_height());
-        ImGui::Text("Objects: %zu", m_engine.get_objects().size());
-        
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Performance");
         ImGui::Separator();
         
-        ImGui::Text("Performance:");
+        ImGui::Text("FPS: %.1f", ImGui::GetIO().Framerate);
+        ImGui::Text("Frame Time: %.3f ms", 1000.0f / ImGui::GetIO().Framerate);
         ImGui::Text("Engine FPS: %.1f", m_engine.get_current_fps());
-        ImGui::Text("Target FPS: %d", m_engine.get_target_fps());
         
         int target_fps = m_engine.get_target_fps();
         if (ImGui::SliderInt("Target FPS", &target_fps, 30, 120))
-        {
             m_engine.set_target_fps(target_fps);
-        }
+        
+        ImGui::Spacing();
+        
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Simulation Info");
+        ImGui::Separator();
+        
+        ImGui::Text("Resolution: %dx%d", m_engine.get_width(), m_engine.get_height());
+        ImGui::Text("Compute Resolution: %dx%d", m_engine.get_compute_width(), m_engine.get_compute_height());
+        ImGui::Text("Objects: %zu", m_engine.get_objects().size());
         
         int compute_height = m_engine.get_compute_height();
         if (ImGui::SliderInt("Compute Height", &compute_height, 64, 2048))
@@ -120,11 +124,13 @@ namespace Donut
             m_engine.update_compute_dimensions();
         }
         
-        ImGui::Text("Compute Width: %d (auto-calculated)", m_engine.get_compute_width());
+        ImGui::TextColored(ImVec4(0.7f, 0.7f, 0.7f, 1.0f), "Compute Width: %d (auto-calculated)", m_engine.get_compute_width());
         
+        ImGui::Spacing();
+        
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Quality Settings");
         ImGui::Separator();
         
-        ImGui::Text("Simulation Quality:");
         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);
@@ -135,21 +141,19 @@ namespace Donut
         if (ImGui::SliderFloat("Early Exit Distance", &early_exit_distance, 1e11f, 1e13f, "%.2e"))
             m_engine.set_early_exit_distance(early_exit_distance);
         
-        ImGui::Separator();
-        
-        ImGui::Text("Controls:");
-        ImGui::Text("Left Mouse: Orbit camera");
-        ImGui::Text("Scroll: Zoom in/out");
-        ImGui::Text("G: Toggle gravity");
-        ImGui::Text("Right Mouse: Enable gravity (hold)");
+        ImGui::Spacing();
         
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Physics");
         ImGui::Separator();
         
-        ImGui::Text("Physics:");
         bool& gravity = m_engine.get_gravity();
         ImGui::Checkbox("Gravity Enabled", &gravity);
         
-        ImGui::Text("Camera:");
+        ImGui::Spacing();
+        
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Camera");
+        ImGui::Separator();
+        
         ImGui::Text("Position: (%.2e, %.2e, %.2e)", 
                    m_engine.get_camera().get_orbital_position().x, 
                    m_engine.get_camera().get_orbital_position().y, 
@@ -158,6 +162,16 @@ namespace Donut
         ImGui::Text("Azimuth: %.2f", m_engine.get_camera().get_azimuth());
         ImGui::Text("Elevation: %.2f", m_engine.get_camera().get_elevation());
         
+        ImGui::Spacing();
+        
+        ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "Controls");
+        ImGui::Separator();
+        
+        ImGui::Text("Left Mouse: Orbit camera");
+        ImGui::Text("Scroll: Zoom in/out");
+        ImGui::Text("G: Toggle gravity");
+        ImGui::Text("Right Mouse: Enable gravity (hold)");
+        
         ImGui::End();
     }
 };