diff --git a/roguebasin/actions.py b/roguebasin/actions.py
index b12bafd..ff59daa 100644
--- a/roguebasin/actions.py
+++ b/roguebasin/actions.py
@@ -3,7 +3,7 @@
 
 import logging
 from .geometry import Direction
-from typing import TYPE_CHECKING
+from typing import Optional, TYPE_CHECKING
 
 if TYPE_CHECKING:
     from .engine import Engine
@@ -11,11 +11,41 @@ if TYPE_CHECKING:
 
 LOG = logging.getLogger('events')
 
+class ActionResult:
+    '''An object that represents the result of an Action.
+
+
+    Attributes
+    ----------
+    success : bool
+        True if the action succeeded
+    done : bool
+        True if the action is complete, and no follow-up action is needed.
+    alternate : Action, optional
+        An alternate action to perform if this action failed
+    '''
+
+    def __init__(self, success: bool, done: bool = True, alternate: Optional['Action'] = None):
+        self.success = success
+        self.done = done
+        self.alternate = alternate
+
 class Action:
-    def perform(self, engine: 'Engine', entity: 'Entity') -> None:
-        '''
-        Perform this action. This is an abstract method that all subclasses
-        should implement.
+    def perform(self, engine: 'Engine', entity: 'Entity') -> ActionResult:
+        '''Perform this action.
+
+        Parameters
+        ----------
+        engine : Engine
+            The game engine
+        entity : Entity
+            The entity that this action is being performed on
+
+        Returns
+        -------
+        ActionResult
+            A result object reflecting how the action was handled, and what follow-up actions, if any, are needed to
+            complete the action.
         '''
         raise NotImplementedError()
 
@@ -23,12 +53,12 @@ class Action:
         return f'{self.__class__.__name__}()'
 
 class ExitAction(Action):
-    def perform(self, engine: 'Engine', entity: 'Entity') -> None:
+    def perform(self, engine: 'Engine', entity: 'Entity') -> ActionResult:
         raise SystemExit()
 
 class RegenerateRoomsAction(Action):
-    def perform(self, engine: 'Engine', entity: 'Entity') -> None:
-        ...
+    def perform(self, engine: 'Engine', entity: 'Entity') -> ActionResult:
+        return ActionResult(True)
 
 class MovePlayerAction(Action):
     def __init__(self, direction: Direction):
diff --git a/roguebasin/engine.py b/roguebasin/engine.py
index 3f6bddf..136a08b 100644
--- a/roguebasin/engine.py
+++ b/roguebasin/engine.py
@@ -1,17 +1,21 @@
 #!/usr/bin/env python3
 # Eryn Wells <eryn@erynwells.me>
 
+'''Defines the core game engine.'''
+
 import logging
 import random
+from dataclasses import dataclass
+from typing import MutableSet
+
 import tcod
+
 from . import monsters
 from .events import EventHandler
 from .geometry import Direction, Size
 from .map import Map
 from .monsters import Monster
 from .object import Entity, Hero
-from dataclasses import dataclass
-from typing import MutableSet
 
 LOG = logging.getLogger('engine')
 EVENT_LOG = logging.getLogger('events')
@@ -82,6 +86,7 @@ class Engine:
         self.update_field_of_view()
 
     def print_to_console(self, console):
+        '''Print the whole game to the given console.'''
         self.map.print_to_console(console)
 
         for ent in self.entities:
diff --git a/roguebasin/map.py b/roguebasin/map.py
index 8ed4f0a..260b683 100644
--- a/roguebasin/map.py
+++ b/roguebasin/map.py
@@ -205,6 +205,7 @@ class RoomsAndCorridorsGenerator(MapGenerator):
         return tiles
 
     def __rect_from_bsp_node(self, node: tcod.bsp.BSP) -> Rect:
+        '''Create a Rect from the given BSP node object'''
         return Rect(Point(node.x, node.y), Size(node.width, node.height))
 
 class Room:
@@ -215,11 +216,21 @@ class Room:
         raise NotImplementedError()
 
 class RectangularRoom(Room):
+    '''A rectangular room defined by a Rect.
+
+    Attributes
+    ----------
+    bounds : Rect
+        A rectangle that defines the room. This rectangle includes the tiles used for the walls, so the floor is 1 tile
+        inset from the bounds.
+    '''
+
     def __init__(self, bounds: Rect):
         self.bounds = bounds
 
     @property
     def center(self) -> Point:
+        '''The center of the room, truncated according to integer math rules'''
         return self.bounds.midpoint
 
     @property