1 files changed, 27 insertions, 0 deletions
diff --git a/src/Xanthous/Game/Arbitrary.hs b/src/Xanthous/Game/Arbitrary.hs
new file mode 100644
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+++ b/src/Xanthous/Game/Arbitrary.hs
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+{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# LANGUAGE RecordWildCards #-}
+--------------------------------------------------------------------------------
+module Xanthous.Game.Arbitrary where
+--------------------------------------------------------------------------------
+import           Xanthous.Prelude
+--------------------------------------------------------------------------------
+import           Test.QuickCheck
+import           System.Random
+--------------------------------------------------------------------------------
+import           Xanthous.Game.State
+import           Xanthous.Entities.Arbitrary ()
+import           Xanthous.Entities.Character
+import qualified Xanthous.Data.EntityMap as EntityMap
+--------------------------------------------------------------------------------
+
+instance Arbitrary GameState where
+  arbitrary = do
+    char <- arbitrary @Character
+    charPos <- arbitrary
+    _messageHistory <- arbitrary
+    (_characterEntityID, _entities) <- arbitrary <&>
+      EntityMap.insertAtReturningID charPos (SomeEntity char)
+    _revealedPositions <- fmap setFromList . sublistOf $ EntityMap.positions _entities
+    _randomGen <- mkStdGen <$> arbitrary
+    let _promptState = NoPrompt -- TODO
+    pure $ GameState {..}