diff --git a/src-lib/Library/Types.hs b/src-lib/Library/Types.hs
index c546c52..b2e8f9c 100644
--- a/src-lib/Library/Types.hs
+++ b/src-lib/Library/Types.hs
@@ -64,6 +64,8 @@ data Arena = Arena
 data Spawner = Spawner
   { spawnerPowerup    :: Wand -- ^ Which 'Powerup' is being spawned
   , spawnerReloadTime :: Int     -- ^ How long does it take for the 'Powerup' to reappear
+  , spawnerState      :: SpawnerState
+  , spawnerReloadTTL  :: Float
   , spawnerPosition   :: Position -- ^ Position of the `Spawner` on the map
   }
   deriving (Show, Eq)
@@ -79,6 +81,11 @@ data Wand
   | BlinkWand -- ^ Spell for random teleport
   deriving (Show, Eq, Enum, Bounded)
 
+data SpawnerState
+  = SpawnerFull
+  | SpawnerEmpty
+  deriving (Eq, Show)
+
 data Effect = Effect
   { effectType :: Affliction -- ^ What is happening
   , effectTTL  :: Float      -- ^ remaining time
@@ -86,6 +93,7 @@ data Effect = Effect
   deriving (Show, Eq)
 
 data Affliction
-  = Burning -- ^ Damage over time
-  | Frozen  -- ^ Unable to perform any action
+  = Burning  -- ^ Damage over time
+  | Frozen   -- ^ Unable to perform any action
+  | Shielded -- ^ invulnerable until next hit or time runs out.
   deriving (Show, Eq)