X-Git-Url: http://nitlanguage.org

diff --git a/lib/bucketed_game.nit b/lib/bucketed_game.nit
index ad79e6c..b5542e4 100644
--- a/lib/bucketed_game.nit
+++ b/lib/bucketed_game.nit
@@ -14,25 +14,28 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Provides basic game logic utilities using buckets to coordinate and
-# optimize actions on game turn ends. Supports both action at each
-# end of turn as well as actions on some end of turns.
+# Game framework with an emphasis on efficient event coordination
 #
-# Allows for fast support of a large number of entities with rare actions,
-# such as a forest with many individual trees.
+# Provides basic game logic entities to manage a game where the logic is executed by turns:
+# `Game`, `GameTurn`, `GameEvent`, `Turnable`.
+# Also offers a bucket system to plan future events at a known number of turns in the future:
+# `Bucketable` and the services `act_next` and `act_in`.
+#
+# Efficiently support large number of entities with rare or sparse actions,
+# such as a forest with many individual trees growing slowly.
 module bucketed_game is serialize
 
 import serialization
 
 # Something acting on the game
-class Turnable[G: Game]
+abstract class Turnable[G: Game]
 
 	# Execute `turn` for this instance.
 	fun do_turn(turn: GameTurn[G]) is abstract
 end
 
 # Something acting on the game from time to time
-class Bucketable[G: Game]
+abstract class Bucketable[G: Game]
 	super Turnable[G]
 
 	private var act_at: nullable Int = null