Remove QuitAction and ActionWithActor!

Move quit event handling to the interface and flatten the Action class
hierarchy. There are no longer any actions that don't take an Actor. This has
the happy side effect of resolving some pylint errors too. :)

erynrl/actions/action.py

@@ -12,6 +12,10 @@ if TYPE_CHECKING:
 class Action:
     '''An action with no specific actor'''
 
+    def __init__(self, actor: Actor):
+        super().__init__()
+        self.actor = actor
+
     # pylint: disable=unused-argument
     def perform(self, engine: 'Engine') -> ActionResult:
         '''Perform this action.
@@ -42,17 +46,3 @@ class Action:
 
     def __repr__(self):
         return f'{self.__class__.__name__}()'
-
-
-class ActionWithActor(Action):
-    '''An action that assigned to an actor'''
-
-    def __init__(self, actor: Actor):
-        super().__init__()
-        self.actor = actor
-
-    def __str__(self) -> str:
-        return f'{self.__class__.__name__} for {self.actor!s}'
-
-    def __repr__(self):
-        return f'{self.__class__.__name__}({self.actor!r})'

erynrl/actions/game.py

@@ -11,7 +11,6 @@ Action : Base class of all actions
         BumpAction
         WalkAction
         MeleeAction
-    ExitAction
     WaitAction
 '''
 
@@ -22,21 +21,14 @@ from .. import items
 from .. import log
 from ..geometry import Vector
 from ..object import Actor, Item
-from .action import Action, ActionWithActor
+from .action import Action
 from .result import ActionResult
 
 if TYPE_CHECKING:
     from ..engine import Engine
 
 
-class ExitAction(Action):
+class MoveAction(Action):
-    '''Exit the game.'''
-
-    def perform(self, engine: 'Engine') -> ActionResult:
-        raise SystemExit()
-
-
-class MoveAction(ActionWithActor):
     '''An abstract Action that requires a direction to complete.'''
 
     def __init__(self, actor: Actor, direction: Vector):
@@ -157,7 +149,7 @@ class MeleeAction(MoveAction):
             return self.success()
 
 
-class WaitAction(ActionWithActor):
+class WaitAction(Action):
     '''Wait a turn'''
 
     def perform(self, engine: 'Engine') -> ActionResult:
@@ -174,7 +166,7 @@ class WaitAction(ActionWithActor):
         return self.success()
 
 
-class DieAction(ActionWithActor):
+class DieAction(Action):
     '''Kill an Actor'''
 
     def perform(self, engine: 'Engine') -> ActionResult:
@@ -193,7 +185,7 @@ class DieAction(ActionWithActor):
         return self.success()
 
 
-class DropItemAction(ActionWithActor):
+class DropItemAction(Action):
     '''Drop an item'''
 
     def __init__(self, actor: 'Actor', item: 'Item'):
@@ -205,7 +197,7 @@ class DropItemAction(ActionWithActor):
         return self.success()
 
 
-class HealAction(ActionWithActor):
+class HealAction(Action):
     '''Heal a target actor some number of hit points'''
 
     def __init__(self, actor: 'Actor', hit_points_to_recover: int):

erynrl/ai.py

@@ -7,7 +7,7 @@ import numpy as np
 import tcod
 
 from . import log
-from .actions.action import ActionWithActor
+from .actions.action import Action
 from .actions.game import BumpAction, WaitAction
 from .components import Component
 from .geometry import Direction, Point
@@ -26,7 +26,7 @@ class AI(Component):
         super().__init__()
         self.entity = entity
 
-    def act(self, engine: 'Engine') -> Optional[ActionWithActor]:
+    def act(self, engine: 'Engine') -> Optional[Action]:
         '''Produce an action to perform'''
         raise NotImplementedError()
 
@@ -38,7 +38,7 @@ class HostileEnemy(AI):
     beeline for her.
     '''
 
-    def act(self, engine: 'Engine') -> Optional[ActionWithActor]:
+    def act(self, engine: 'Engine') -> Optional[Action]:
         visible_tiles = tcod.map.compute_fov(
             engine.map.tiles['transparent'],
             pov=tuple(self.entity.position),

erynrl/engine.py

@@ -9,7 +9,7 @@ import tcod
 
 from . import log
 from . import monsters
-from .actions.action import Action, ActionWithActor
+from .actions.action import Action
 from .actions.result import ActionResult
 from .ai import HostileEnemy
 from .configuration import Configuration
@@ -110,7 +110,7 @@ class Engine:
 
     def process_input_action(self, action: Action):
         '''Process an Action from player input'''
-        if not isinstance(action, ActionWithActor):
+        if not isinstance(action, Action):
             action.perform(self)
             return
 
@@ -159,7 +159,7 @@ class Engine:
             if action:
                 self._perform_action_until_done(action)
 
-    def _perform_action_until_done(self, action: ActionWithActor) -> ActionResult:
+    def _perform_action_until_done(self, action: Action) -> ActionResult:
         '''Perform the given action and any alternate follow-up actions until the action chain is done.'''
         result = action.perform(self)
 
@@ -184,7 +184,7 @@ class Engine:
 
             if log.ACTIONS_TREE.isEnabledFor(log.INFO) and self.map.visible[tuple(action.actor.position)]:
                 if result.alternate:
-                    alternate_string = f'{result.alternate.__class__.__name__}[{result.alternate.actor.symbol}]'
+                    alternate_string = f'{result.alternate.__class__.__name__}[{result.alternate.actor}]'
                 else:
                     alternate_string = str(result.alternate)
                 log.ACTIONS_TREE.info(

erynrl/events.py

@@ -6,7 +6,7 @@ import tcod
 import tcod.event as tev
 
 from .actions.action import Action
-from .actions.game import BumpAction, ExitAction, WaitAction
+from .actions.game import BumpAction, WaitAction
 from .geometry import Direction
 
 if TYPE_CHECKING:
@@ -51,9 +51,6 @@ class EngineEventHandler(tev.EventDispatch[Action]):
 
         return action
 
-    def ev_quit(self, event: tcod.event.Quit) -> Optional[Action]:
-        return ExitAction()
-
 
 class GameOverEventHandler(tev.EventDispatch[Action]):
     '''When the game is over (the hero dies, the player quits, etc), this event handler takes over.'''
@@ -61,6 +58,3 @@ class GameOverEventHandler(tev.EventDispatch[Action]):
     def __init__(self, engine: 'Engine'):
         super().__init__()
         self.engine = engine
-
-    def ev_quit(self, event: tev.Quit) -> Optional[Action]:
-        return ExitAction()

erynrl/interface/events.py

@@ -2,7 +2,7 @@
 
 '''Defines event handling mechanisms.'''
 
-from typing import TYPE_CHECKING
+from typing import NoReturn, TYPE_CHECKING
 
 from tcod import event as tev
 
@@ -42,6 +42,11 @@ class InterfaceEventHandler(tev.EventDispatch[bool]):
     def ev_mousebuttonup(self, event: tev.MouseButtonUp) -> bool:
         return self._handle_event(event)
 
+    def ev_quit(self, event: tev.Quit) -> NoReturn:
+        # TODO: Maybe show a "do you want to quit?" alert?
+        # TODO: Probably inform the engine that we're shutting down.
+        raise SystemExit()
+
     def _handle_event(self, event: tev.Event) -> bool:
         for handler in self._handlers:
             if handler and handler.dispatch(event):