Show the current dungeon level on the main interface

engine.py

@@ -9,7 +9,7 @@ from tcod.map import compute_fov
 
 import exceptions
 from message_log import MessageLog
-from render_functions import render_bar, render_names_at_mouse_location
+import render_functions
 
 if TYPE_CHECKING:
     from entity import Actor
@@ -49,14 +49,20 @@ class Engine:
 
         self.message_log.render(console=console, x=21, y=45, width=40, height=5)
 
-        render_bar(
+        render_functions.render_bar(
             console,
             current_value=self.player.fighter.hp,
             maximum_value=self.player.fighter.max_hp,
             total_width=20,
         )
 
-        render_names_at_mouse_location(console, x=21, y=44, engine=self)
+        render_functions.render_dungeon_level(
+            console,
+            dungeon_level=self.game_world.current_floor,
+            location=(0, 47)
+        )
+
+        render_functions.render_names_at_mouse_location(console, x=21, y=44, engine=self)
 
     def save_as(self, filename: str) -> None:
         """Save this Engine instance as a compressed file."""

input_handlers.py

@@ -404,9 +404,15 @@ class MainGameEventHandler(EventHandler):
         action: Optional[Action] = None
 
         key = event.sym
+        modifier = event.mod
 
         player = self.engine.player
 
+        if key == tcod.event.K_PERIOD and modifier & (
+                tcod.event.KMOD_LSHIFT | tcod.event.KMOD_RSHIFT
+        ):
+            return actions.TakeStairsAction(player)
+
         if key in MOVE_KEYS:
             dx, dy = MOVE_KEYS[key]
             action = BumpAction(player, dx, dy)

render_functions.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import Tuple, TYPE_CHECKING
 
 import color
 
@@ -49,6 +49,19 @@ def render_bar(
     )
 
 
+def render_dungeon_level(
+        console: Console,
+        dungeon_level: int,
+        location: Tuple[int, int]
+) -> None:
+    """
+    Render the level the player is currently on, at the given location.
+    """
+    x, y = location
+
+    console.print(x, y, string=f"Dungeon level: {dungeon_level}")
+
+
 def render_names_at_mouse_location(
         console: Console,
         x: int,

setup_game.py

@@ -36,6 +36,7 @@ def new_game() -> Engine:
     engine = Engine(player)
 
     engine.game_world = GameWorld(
+        engine=engine,
         max_rooms=max_rooms,
         room_min_size=room_min_size,
         room_max_size=room_max_size,