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|
{-# LANGUAGE TemplateHaskell #-}
module Xanthous.Entities.Environment
( Wall(..)
, Door(..)
, open
, locked
) where
--------------------------------------------------------------------------------
import Xanthous.Prelude
import Test.QuickCheck
import Test.QuickCheck.Arbitrary.Generic
import Brick (str)
import Brick.Widgets.Border.Style (unicode)
import Brick.Types (Edges(..))
import Data.Aeson
--------------------------------------------------------------------------------
import Xanthous.Entities
( Draw(..)
, entityIs
, Entity(..)
, SomeEntity
, Brain(..)
, Brainless(..)
, brainVia
)
import Xanthous.Entities.Draw.Util
import Xanthous.Data
--------------------------------------------------------------------------------
data Wall = Wall
deriving stock (Show, Eq, Ord, Generic, Enum)
deriving anyclass (NFData, CoArbitrary, Function)
instance ToJSON Wall where
toJSON = const $ String "Wall"
instance FromJSON Wall where
parseJSON = withText "Wall" $ \case
"Wall" -> pure Wall
_ -> fail "Invalid Wall: expected Wall"
-- deriving via Brainless Wall instance Brain Wall
instance Brain Wall where step = brainVia Brainless
instance Entity Wall where
blocksVision _ = True
description _ = "a wall"
instance Arbitrary Wall where
arbitrary = pure Wall
wallEdges :: (MonoFoldable mono, Element mono ~ SomeEntity)
=> Neighbors mono -> Edges Bool
wallEdges neighs = any (entityIs @Wall) <$> edges neighs
instance Draw Wall where
drawWithNeighbors neighs _wall =
str . pure . borderFromEdges unicode $ wallEdges neighs
data Door = Door
{ _open :: Bool
, _locked :: Bool
}
deriving stock (Show, Eq, Ord, Generic)
deriving anyclass (NFData, CoArbitrary, Function, ToJSON, FromJSON)
makeLenses ''Door
instance Arbitrary Door where
arbitrary = genericArbitrary
instance Draw Door where
drawWithNeighbors neighs door
| door ^. open
= str . pure $ case wallEdges neighs of
Edges True False False False -> vertDoor
Edges False True False False -> vertDoor
Edges True True False False -> vertDoor
Edges False False True False -> horizDoor
Edges False False False True -> horizDoor
Edges False False True True -> horizDoor
_ -> '+'
| otherwise = str "\\"
where
horizDoor = '␣'
vertDoor = '['
-- deriving via Brainless Door instance Brain Door
instance Brain Door where step = brainVia Brainless
instance Entity Door where
blocksVision = not . view open
description _ = "a door"
|
