c0922e4906
GHC 8.8 is better at detecting unused imports, it seems - all of these are new warnings that fail under -Werror Change-Id: I1357094d715483612deb0db4a75b3e4f8f27d2e3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/889 Reviewed-by: glittershark <grfn@gws.fyi> Reviewed-by: BuildkiteCI Tested-by: BuildkiteCI
64 lines
2.4 KiB
Haskell
64 lines
2.4 KiB
Haskell
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module Xanthous.App.Autocommands
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( runAutocommand
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, autoStep
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) where
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import Xanthous.Prelude
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import Control.Concurrent (threadDelay)
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import qualified Data.Aeson as A
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import Data.Aeson (object)
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import Data.List.NonEmpty (nonEmpty)
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import qualified Data.List.NonEmpty as NE
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import Control.Monad.State (gets)
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import Xanthous.App.Common
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import Xanthous.App.Time
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import Xanthous.Data
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import Xanthous.Data.App
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import Xanthous.Entities.Character (speed)
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import Xanthous.Entities.Creature (Creature, creatureType)
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import Xanthous.Entities.RawTypes (hostile)
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import Xanthous.Game.State
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autoStep :: Autocommand -> AppM ()
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autoStep (AutoMove dir) = do
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newPos <- uses characterPosition $ move dir
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collisionAt newPos >>= \case
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Nothing -> do
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characterPosition .= newPos
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stepGameBy =<< uses (character . speed) (|*| 1)
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describeEntitiesAt newPos
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maybeVisibleEnemies <- nonEmpty <$> enemiesInSight
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for_ maybeVisibleEnemies $ \visibleEnemies -> do
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say ["autoMove", "enemyInSight"]
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$ object [ "firstEntity" A..= NE.head visibleEnemies ]
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cancelAutocommand
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Just _ -> cancelAutocommand
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where
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enemiesInSight :: AppM [Creature]
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enemiesInSight = do
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ents <- gets characterVisibleEntities
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pure $ ents
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^.. folded
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. _SomeEntity @Creature
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. filtered (view $ creatureType . hostile)
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--------------------------------------------------------------------------------
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autocommandIntervalμs :: Int
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autocommandIntervalμs = 1000 * 50 -- 50 ms
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runAutocommand :: Autocommand -> AppM ()
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runAutocommand ac = do
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env <- ask
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tid <- liftIO . async $ runReaderT go env
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autocommand .= ActiveAutocommand ac tid
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where
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go = everyμs autocommandIntervalμs $ sendEvent AutoContinue
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-- | Perform 'act' every μs microseconds forever
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everyμs :: MonadIO m => Int -> m () -> m ()
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everyμs μs act = act >> liftIO (threadDelay μs) >> everyμs μs act
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