src/Xanthous/Game/Arbitrary.hs


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{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE RecordWildCards #-}
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module Xanthous.Game.Arbitrary where
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import           Xanthous.Prelude
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import           Test.QuickCheck
import           System.Random
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import           Xanthous.Game.State
import           Xanthous.Entities.Entities ()
import           Xanthous.Entities.Character
import qualified Xanthous.Data.EntityMap as EntityMap
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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
    _debugState <- arbitrary
    pure $ GameState {..}


instance CoArbitrary GameState
instance Function GameState
deriving newtype instance CoArbitrary (m (a, GameState)) => CoArbitrary (AppT m a)