Fry3DX 0.4: an easy 3D modeller

Shapes with live settings, shape editing, knife and hole tools, drawing
shapes onto other objects, combining objects (add / subtract / overlap),
copies, thickness, painting with stickers and layers, a Layout tab, a
Print tab with checks, packed .fry files with autosave, export to GLB,
glTF, FBX, OBJ, 3MF, STL and PLY, folders in Layers, its own crash
screen, and a website for GitHub Pages in docs/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NMSrd5oe1GpUD7E6d825KP

engine/platform/input.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <string>
+
+union SDL_Event;
+
+namespace keel::input {
+
+bool keyDown(int scancode); // SDL_SCANCODE_*
+bool mouseDown(int button); // SDL_BUTTON_LEFT etc.
+// Mouse movement since the last call, in pixels.
+void takeMouseDelta(float& dx, float& dy);
+// While captured the cursor is hidden and the game owns the mouse and keyboard.
+bool captured();
+
+// Key bindings, Quake/Source style: "bind w +forward" runs "+forward" on press
+// and "-forward" on release; other commands run on press. Key names: letters,
+// digits, "space", "ctrl", "shift", "escape", "f1".., "mouse1".."mouse5",
+// "mwheelup", "mwheeldown".
+void bind(const char* key, const char* command);
+// Lines "unbindall" + "bind ..." for config.cfg.
+std::string bindingsConfig();
+// The key bound to `command` ("" if none), for menus.
+std::string keyFor(const char* command);
+// The next key pressed is reported here instead of running its binding (options menu).
+void captureNextKey(void (*callback)(const char* keyName));
+
+// Engine side.
+void setCaptured(bool on);
+// Never grab the mouse (test mode).
+void disableCapture();
+void handleEvent(const SDL_Event& ev);
+// Releases every held "+" action (when a menu opens mid-press).
+void releaseAll();
+
+} // namespace keel::input