about summary refs log tree commit diff
path: root/users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs
diff options
context:
space:
mode:
authorVincent Ambo <mail@tazj.in>2020-06-16T00·05+0100
committerVincent Ambo <mail@tazj.in>2020-06-16T00·05+0100
commit2edb963b97867b27f68efac8d05bf966077b0b01 (patch)
treec3bb279dfd4330e09a0af6ef4e84ff8a9a3bc7ad /users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs
parent91f53f02d8479303910abfd3f3690d3ef27e6c4b (diff)
parent53b56744f4335c038724a1bcffc27a7eb8cf6a6d (diff)
Add 'users/glittershark/xanthous/' from commit '53b56744f4335c038724a1bcffc27a7eb8cf6a6d' r/978
git-subtree-dir: users/glittershark/xanthous
git-subtree-mainline: 91f53f02d8479303910abfd3f3690d3ef27e6c4b
git-subtree-split: 53b56744f4335c038724a1bcffc27a7eb8cf6a6d
Diffstat (limited to 'users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs')
-rw-r--r--users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs65
1 files changed, 65 insertions, 0 deletions
diff --git a/users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs b/users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs
new file mode 100644
index 000000000000..35b92bba7289
--- /dev/null
+++ b/users/glittershark/xanthous/src/Xanthous/App/Autocommands.hs
@@ -0,0 +1,65 @@
+--------------------------------------------------------------------------------
+module Xanthous.App.Autocommands
+  ( runAutocommand
+  , autoStep
+  ) where
+--------------------------------------------------------------------------------
+import           Xanthous.Prelude
+--------------------------------------------------------------------------------
+import           Control.Concurrent (threadDelay)
+import qualified Data.Aeson as A
+import           Data.Aeson (object)
+import           Data.List.NonEmpty (nonEmpty)
+import qualified Data.List.NonEmpty as NE
+import           Control.Monad.State (gets)
+--------------------------------------------------------------------------------
+import           Xanthous.App.Common
+import           Xanthous.App.Time
+import           Xanthous.Data
+import           Xanthous.Data.App
+import           Xanthous.Entities.Character (speed)
+import           Xanthous.Entities.Creature (Creature, creatureType)
+import           Xanthous.Entities.RawTypes (hostile)
+import           Xanthous.Game.State
+import           Xanthous.Game.Lenses (characterVisibleEntities)
+--------------------------------------------------------------------------------
+
+autoStep :: Autocommand -> AppM ()
+autoStep (AutoMove dir) = do
+  newPos <- uses characterPosition $ move dir
+  collisionAt newPos >>= \case
+    Nothing -> do
+      characterPosition .= newPos
+      stepGameBy =<< uses (character . speed) (|*| 1)
+      describeEntitiesAt newPos
+      maybeVisibleEnemies <- nonEmpty <$> enemiesInSight
+      for_ maybeVisibleEnemies $ \visibleEnemies -> do
+        say ["autoMove", "enemyInSight"]
+          $ object [ "firstEntity" A..= NE.head visibleEnemies ]
+        cancelAutocommand
+    Just _ -> cancelAutocommand
+  where
+    enemiesInSight :: AppM [Creature]
+    enemiesInSight = do
+      ents <- gets characterVisibleEntities
+      pure $ ents
+         ^.. folded
+           . _SomeEntity @Creature
+           . filtered (view $ creatureType . hostile)
+
+--------------------------------------------------------------------------------
+
+autocommandIntervalμs :: Int
+autocommandIntervalμs = 1000 * 50 -- 50 ms
+
+runAutocommand :: Autocommand -> AppM ()
+runAutocommand ac = do
+  env <- ask
+  tid <- liftIO . async $ runReaderT go env
+  autocommand .= ActiveAutocommand ac tid
+  where
+    go = everyμs autocommandIntervalμs $ sendEvent AutoContinue
+
+-- | Perform 'act' every μs microseconds forever
+everyμs :: MonadIO m => Int -> m () -> m ()
+everyμs μs act = act >> liftIO (threadDelay μs) >> everyμs μs act