First pass on the logs

The newly-added logs manage a list of messages. Entities do register a
message to it when hitting each other. Display is created, but not yet
added to the layout actually displayed.

squirrelbattle/game.py

@@ -6,7 +6,7 @@ import sys
 
 from .entities.player import Player
 from .enums import GameMode, KeyValues, DisplayActions
-from .interfaces import Map
+from .interfaces import Map, Logs
 from .resources import ResourceManager
 from .settings import Settings
 from . import menus
@@ -33,6 +33,7 @@ class Game:
         self.settings.load_settings()
         self.settings.write_settings()
         self.settings_menu.update_values(self.settings)
+        self.logs = Logs()
 
     def new_game(self) -> None:
         """
@@ -40,6 +41,7 @@ class Game:
         """
         # TODO generate a new map procedurally
         self.map = Map.load(ResourceManager.get_asset_path("example_map_2.txt"))
+        self.map.logs = self.logs
         self.player = Player()
         self.map.add_entity(self.player)
         self.player.move(self.map.start_y, self.map.start_x)