Add generic derivations and To/FromJSON instances

src/Dodge/Data/LinearShockwave.hs

@@ -1,6 +1,9 @@
+{-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE StrictData #-}
 module Dodge.Data.LinearShockwave where
+import GHC.Generics
+import Data.Aeson
 import Geometry.Data
 import Control.Lens
 data LinearShockwave = LinearShockwave
@@ -9,5 +12,8 @@ data LinearShockwave = LinearShockwave
     , _lwPoints :: [(Point2,Point2)]
     , _lwTimer :: Int
     }
-  deriving (Eq,Ord,Show,Read)
+  deriving (Eq,Ord,Show,Read,Generic)
+instance ToJSON LinearShockwave  where
+    toEncoding = genericToEncoding defaultOptions
+instance FromJSON LinearShockwave 
 makeLenses ''LinearShockwave