Main menu and saving

src/main.rs

@@ -376,6 +376,19 @@ fn handle_keys(tcod: &mut Tcod, game: &mut Game, objects: &mut Vec<Object>) -> P
       DidntTakeTurn
     }
 
+    (Key { code: Text, .. }, "d", true) => {
+      // Show the inventory; if an item is selected, drop it
+      let inventory_index = inventory_menu(
+        &game.inventory,
+        "Press the key next to an item to drop it, or any other to cancel.\n",
+        &mut tcod.root,
+      );
+      if let Some(inventory_index) = inventory_index {
+        drop_item(inventory_index, game, objects);
+      }
+      DidntTakeTurn
+    }
+
     _ => DidntTakeTurn,
   }
 }
@@ -1058,6 +1071,15 @@ fn target_monster(
   }
 }
 
+fn drop_item(inventory_id: usize, game: &mut Game, objects: &mut Vec<Object>) {
+  let mut item = game.inventory.remove(inventory_id);
+  item.set_pos(objects[PLAYER].x, objects[PLAYER].y);
+  game
+    .messages
+    .add(format!("You dropped a {}.", item.name), YELLOW);
+  objects.push(item);
+}
+
 fn render_all(tcod: &mut Tcod, game: &mut Game, objects: &[Object], fov_recompute: bool) {
   if fov_recompute {
     let player = &objects[PLAYER];