Add room entry auto-triggers, player input, and more

* When you teleport to a room, the teleport auto-triggers fire.
* Rooms have auto-triggers. None by default. They are run every time you
  teleport to a room, and when the game starts. Gate behavior behind a
  variable.
* PlayerInputAction waits for player input (and potentially write it
  into a variable)

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

examplegame/rooms.py

@@ -4,6 +4,61 @@ from agame.room import Room
 from agame.trigger import *
 from . import database
 
+################################################################################
+# Game intro
+################################################################################
+database.add_room(
+    Room(
+        id="prelude",
+        name="Prelude",
+        desc="",
+        items={},
+        teleport_actions=[
+            PrintAction(
+                "." * 70,
+                "Many stories have been told about this place. Some are tall "
+                "tales and mostly contradictory. Some others, however, are true.",
+                #
+                "This is one of those stories.",
+                "." * 70,
+            ),
+            PlayerInputAction(),
+            PrintAction(
+                "." * 70,
+                #
+                "There used to be trees here. Fifteen years ago, we were sitting "
+                "in the shade, telling stories about last summer and what we hope "
+                "would happen next, our laughter unable to break past the leaves "
+                "and branches around us.",
+                #
+                "It is now desolate. Only the wind shakes the dry branches of the "
+                "remaining trees. They chitter and clack; any other noise is a "
+                "long echo. Nothing else stands tall enough to block the sound.",
+                #
+                "No animals patrol the sky nor ground. Life has left this place.",
+                "." * 70,
+            ),
+            PlayerInputAction(),
+            PrintAction(
+                "." * 70,
+                "It is because of the ((machine)).",
+                "." * 70,
+            ),
+            PlayerInputAction(),
+            SleepAction(1),
+            PrintAction("."),
+            SleepAction(1),
+            PrintAction(".."),
+            SleepAction(1),
+            PrintAction("..."),
+            SleepAction(1),
+            PrintAction("You awaken from a fitful sleep. Where are you again?"),
+            PlayerInputAction(),
+            TeleportAction("cabin_inside"),
+        ],
+    )
+)
+
 ################################################################################
 # Inside the cabin
 ################################################################################
@@ -200,6 +255,7 @@ database.add_items(
         id="cabin_outside_west_path",
         name="Western path",
         synonyms=(
+            "path",
             "path to west",
             "path to the west",
             "path leading west",