fix weight of mirrors

doc/realism.md

@@ -36,4 +36,4 @@ The game features an Augmented Reality mode that overlays virtual objects on top
 - [ ] The player should only be able to receive objects (e.g. oxygen) from NPCs if they are close by.
 - [ ] Time should pass when being unconscious from cryofreeze for a transport by FASTravel
 - [ ] The orientation of planets and moons should reflect their actual orientation
-- [ ] The masses of objects often are way off (thin space mirrors weighing 52 tons???)
+- [ ] The masses of objects often are way off (thin space mirrors weighing 52 tons??? - P.S. they actually weigh even MORE)

src/cmd.rs

@@ -1036,6 +1036,9 @@ fn spawn_scenes(
                             state.angular_momentum = DVec3::ZERO;
                         }
 
+                        // command: density 105.0 (10.5g/cm³, density of silver)
+                        state.density = 105.0;
+
                         // command: mirror yes
                         state.is_mirror = true;
                     }