Add airlocks

src/Dodge/World/Trigger/Data.hs

@@ -0,0 +1,12 @@
+{- |
+World triggers are intended to help me handle global events, 
+such as new levels, game overs, etc, that disrupt the typical flow of the game.
+They should probably be used sparingly.
+ -}
+module Dodge.World.Trigger.Data
+    where
+
+data WorldTrigger
+    = ResetLevel Int
+    | GameOver
+  deriving (Eq,Ord)