randomize content of chests and potions

src/level_widget.rs

@@ -45,7 +45,7 @@ impl StatefulWidget for LevelWidget {
                                     self.set_cell(buf, x, y, "Ω", Color::Black, Color::Gray);
                                 }
                                 StructureElement::Wall => {
-                                    // TODO add fancy walls
+                                    // TODO add fancy walls with https://en.wikipedia.org/wiki/Box-drawing_characters
                                     self.set_cell(buf, x, y, "#", FG_BROWN, Color::Gray);
                                 }
                                 StructureElement::Floor => {