feat: add key handlers for tripod camera movement and rotation controls

src/main.rs

@@ -270,19 +270,22 @@ fn main() {
                 }
             }
 
-            // Handle keyboard input
+            // Handle keyboard input for camera movement and rotation
             if let Ok(keys) = pressed_keys.lock() {
                 for key in keys.iter() {
                     match key {
-                        // The `VirtualKeyCode` enum is defined here:
-                        //    https://docs.rs/winit/0.25.0/winit/event/enum.VirtualKeyCode.html
-                        VirtualKeyCode::A => {
-                            _arbitrary_number += delta_time;
-                        }
-                        VirtualKeyCode::D => {
-                            _arbitrary_number -= delta_time;
-                        }
-
+                        // Movement: WASD + Space (up) + LShift (down)
+                        VirtualKeyCode::W => { cam_pos.z -= delta_time; }
+                        VirtualKeyCode::S => { cam_pos.z += delta_time; }
+                        VirtualKeyCode::A => { cam_pos.x -= delta_time; }
+                        VirtualKeyCode::D => { cam_pos.x += delta_time; }
+                        VirtualKeyCode::Space => { cam_pos.y += delta_time; }
+                        VirtualKeyCode::LShift => { cam_pos.y -= delta_time; }
+                        // Rotation: arrow keys for yaw and pitch
+                        VirtualKeyCode::Left => { cam_yaw   -= delta_time; }
+                        VirtualKeyCode::Right => { cam_yaw  += delta_time; }
+                        VirtualKeyCode::Up => { cam_pitch   += delta_time; }
+                        VirtualKeyCode::Down => { cam_pitch -= delta_time; }
                         // default handler:
                         _ => {}
                     }