Part 1 of the tutorial.

input_handlers.py

@@ -1,19 +1,26 @@
-import tcod as tc
+from typing import Optional
+import tcod.event
+from actions import Action, EscapeAction, MovementAction
 
+class EventHandler(tcod.event.EventDispatch[Action]):
+    def ev_quit(self, event: tcod.event.Quit) -> Optional[Action]:
+        raise SystemExit()
 
-def handle_keys(key):
-    if key.vk == tc.KEY_UP:
-        return {'move': (0,-1)}
-    elif key.vk == tc.KEY_DOWN:
-        return {'move': (0,1)}
-    elif key.vk == tc.KEY_LEFT:
-        return {'move':(-1,0)}
-    elif key.vk == tc.KEY_RIGHT:
-        return {'move':(1,0)}
+    def ev_keydown(self, event: "tcod.event.KeyDown") -> Optional[Action]:
+        action: Optional[Action] = None
 
-    if key.vk == tc.KEY_ENTER and key.lalt:
-        return {'fullscreen':True}
-    elif key.vk == tc.KEY_ESCAPE:
-        return {'exit': True}
+        key = event.sym
 
-    return {}
+        if key == tcod.event.K_UP:
+            action = MovementAction(dx=0, dy=-1)
+        elif key == tcod.event.K_DOWN:
+            action = MovementAction(dx=0, dy=1)
+        elif key == tcod.event.K_LEFT:
+            action = MovementAction(dx=-1, dy=0)
+        elif key == tcod.event.K_RIGHT:
+            action = MovementAction(dx=1, dy=0)
+
+        elif key == tcod.event.K_ESCAPE:
+            action = EscapeAction()
+
+        return action