diff --git a/docs/ui_implementation_plan.md b/docs/ui_implementation_plan.md deleted file mode 100644 index 975703e..0000000 --- a/docs/ui_implementation_plan.md +++ /dev/null @@ -1,147 +0,0 @@ -# UI Implementation Plan - Body Selection and Information Display - -## Overview -Add UI elements using raygui to list celestial bodies and display detailed information about selected bodies. - -## UI Library Choice -**raygui** - raylib's official immediate-mode GUI library -- Seamless integration with existing raylib code -- Lightweight and follows raylib's C-style conventions -- Provides `GuiListView()` for body lists and `GuiWindowBox()` for information panels -- No additional dependencies beyond raylib - -## Implementation Status: ✅ COMPLETED - -All phases have been successfully implemented. See `docs/ui_implementation_summary.md` for detailed implementation summary. - -## Implementation Phases - -### ✅ Phase 1: Add raygui Submodule (COMPLETED) -1. **Added raygui as git submodule** in `ext/raygui/` - - Follows existing pattern with `ext/` directory - - Keeps raygui version-controlled and easily updatable - - Matches current dependency management approach - -2. **Updated .gitmodules** - - Added new entry for raygui submodule - -### ✅ Phase 2: Update Build System (COMPLETED) -1. **Modified Makefile** - - Added raygui include path: `-I./ext/raygui/src` - - Added raygui.c compilation integration - - Updated linking to include raygui objects - -2. **Integration approach** - - Followed existing pattern from tomlc17 integration - - Added raygui implementation with `#define RAYGUI_IMPLEMENTATION` in renderer.cpp - -### ✅ Phase 3: Code Integration (COMPLETED) -1. **Updated renderer.h** - - Added raygui include with `#define RAYGUI_IMPLEMENTATION` - - Extended RenderState with UI fields: - - `int selected_body_index` // -1 = no selection - - `bool show_body_list` // Toggle for list panel - - `bool show_body_info` // Toggle for info panel - -2. **Added UI functions to renderer.h** - - `void render_body_list_ui(SimulationState* sim, RenderState* render_state);` - - `void render_body_info_ui(SimulationState* sim, RenderState* render_state);` - -### ✅ Phase 4: Implementation Details (COMPLETED) -1. **UI Layout Strategy** - IMPLEMENTED - - Left panel (200px x 400px): Body list using `GuiListView()` - - Right panel (250px x 300px): Detailed info using `GuiLabel()` - - Both panels toggleable with keyboard shortcuts - -2. **raygui-specific considerations** - IMPLEMENTED - - raygui immediate-mode integration in renderer.cpp - - Used `#define RAYGUI_IMPLEMENTATION` in renderer.cpp - - Compiled alongside raylib without conflicts - -3. **Controls Integration** - IMPLEMENTED - - 'B' key: Toggle body list panel - - 'I' key: Existing info toggle (simulation info) - - Mouse: Select from list, close panels with X button - - ESC: Quit (unchanged) - -4. **Body Information Display** - IMPLEMENTED - When a body is selected, displays: - - Name, mass, radius - - Current position (x, y, z) and velocity magnitude - - Orbital parameters (eccentricity, semi-major axis) - - Parent body and SOI radius - -### ✅ Phase 5: Integration and Polish (COMPLETED) -1. **Updated main render loop** - - UI rendering functions called after 3D rendering before `EndDrawing()` - - Proper depth ordering maintained (3D scene → UI panels → end frame) - - UI state initialized in main.cpp - -2. **User experience enhancements** - PARTIALLY IMPLEMENTED - - Body list and info panels functional - - Selection persists across frames - - Info panel auto-opens when body selected - - Window close (X) buttons functional - -## Key Technical Details (IMPLEMENTED) - -### raygui Functions Used: -- `GuiWindowBox(bounds, title)` - Draggable window containers -- `GuiListView(bounds, text, scrollIndex, active)` - Scrollable body list -- `GuiLabel(bounds, text)` - Multi-line information display - -### Data Flow: -1. Simulation populates `SimulationState` with bodies -2. UI reads body names from `sim->bodies[i].name` and converts to semicolon-separated string -3. Selection updates `render_state->selected_body_index` -4. Info panel displays detailed data from selected body - -### Layout Strategy (IMPLEMENTED): -- Body list: Left side of screen (200px wide, 400px tall) -- Info panel: Right side of screen (250px wide, 300px tall) -- Both panels can be toggled independently -- Maintain existing 3D viewport in center - -## Files Modified: -1. ✅ **Makefile** - Added raygui compilation -2. ✅ **src/renderer.h** - Added UI declarations and RenderState extensions -3. ✅ **src/renderer.cpp** - Implemented UI rendering functions and raygui integration -4. ✅ **src/main.cpp** - Initialize UI state and add keyboard controls -5. ✅ **.gitmodules** - Added raygui submodule entry - -## Integration Notes (VERIFIED): -- ✅ Maintains C-style architecture -- ✅ Immediate-mode UI fits existing rendering loop -- ✅ Minimal state management required -- ✅ Follows existing dependency patterns (git submodules) - -## Bug Fixes - -### GuiListView Return Value Bug (FIXED) -**Issue**: GuiListView() always returns 0 (known raygui bug), preventing body selection from working. - -**Solution**: -- Added `body_list_scroll` and `body_list_active` to RenderState for state persistence -- Check `body_list_active` parameter changes instead of return value -- Initialize `body_list_active` to -1 in main.cpp - -**Reference**: https://github.com/raysan5/raygui/issues/448 - -**Commits**: -- `85bd9ee`: Fix raygui body selection - GuiListView return value bug -- `1b8e092`: Improve buffer safety in body list string construction - -## Future Enhancements (Optional) - -### Potential Improvements: -- **Camera focus**: Option to focus camera on selected body -- **Visual highlighting**: Highlight selected body in 3D view -- **Enhanced info**: Add real-time orbital metrics -- **Search functionality**: Filter body list by name -- **Multiple selection**: Select multiple bodies for comparison - -### Advanced Features: -- **Reference frame switching**: View from selected body's perspective -- **Orbit manipulation**: Edit orbital parameters via UI -- **Time controls**: Jump to specific orbital positions -- **Export functionality**: Save body data to file \ No newline at end of file