fix: correct camera movement to be relative to current direction vectors

src/main.rs

@@ -337,8 +337,8 @@ fn main() {
                 for key in keys.iter() {
                     match key {
                         // Move relative to camera orientation
-                        VirtualKeyCode::W => { cam_pos -= front * speed; }
-                        VirtualKeyCode::S => { cam_pos += front * speed; }
+                        VirtualKeyCode::W => { cam_pos += front * speed; }
+                        VirtualKeyCode::S => { cam_pos -= front * speed; }
                         VirtualKeyCode::A => { cam_pos -= right * speed; }
                         VirtualKeyCode::D => { cam_pos += right * speed; }
                         VirtualKeyCode::Space => { cam_pos += up_vec * speed; }