about summary refs log tree commit diff
path: root/src/Xanthous/Monad.hs
diff options
context:
space:
mode:
authorGriffin Smith <root@gws.fyi>2020-05-12T03·03-0400
committerGriffin Smith <root@gws.fyi>2020-05-12T03·03-0400
commit34cabba896507f2b6523d6aec344ec1c88e453be (patch)
treea25801db3ecbfbb10582f4fceef2be8d14ba584e /src/Xanthous/Monad.hs
parentecd33e0c901b34d77ea77ad0f3b65125d85a4515 (diff)
Add a very basic, naive auto-move command
Add a very basic, naive auto-move command, which just steps the player
in a direction until they collide with something, regardless of any
surrounding beasties who might want to eat them.

There's a lot of other stuff going on here - in order to get this
working the way I wanted with a slight (I settled on 50ms) delay between
every step in these autocommands while still redrawing in between I had
to do all the extra machinery for custom Brick events with a channel,
and then at the same time adding the bits for actually executing
autocommands in a general fashion (because there will definitely be
more!) hit my threshold for size for App.hs which sent me on a big
journey to break it up into smaller files -- which seems actually like
it was quite successful. Hopefully this will help with compile times
too, though App.hs is still pretty slow (maybe more to do here).
Diffstat (limited to 'src/Xanthous/Monad.hs')
-rw-r--r--src/Xanthous/Monad.hs29
1 files changed, 25 insertions, 4 deletions
diff --git a/src/Xanthous/Monad.hs b/src/Xanthous/Monad.hs
index 1138a7a5a09b..db602de56f3a 100644
--- a/src/Xanthous/Monad.hs
+++ b/src/Xanthous/Monad.hs
@@ -5,12 +5,19 @@ module Xanthous.Monad
   , runAppT
   , continue
   , halt
+
     -- * Messages
   , say
   , say_
   , message
   , message_
   , writeMessage
+
+    -- * Autocommands
+  , cancelAutocommand
+
+    -- * Events
+  , sendEvent
   ) where
 --------------------------------------------------------------------------------
 import           Xanthous.Prelude
@@ -18,16 +25,16 @@ import           Control.Monad.Random
 import           Control.Monad.State
 import qualified Brick
 import           Brick (EventM, Next)
-import           Data.Aeson
+import           Brick.BChan (writeBChan)
+import           Data.Aeson (ToJSON, object)
 --------------------------------------------------------------------------------
+import           Xanthous.Data.App (AppEvent)
 import           Xanthous.Game.State
+import           Xanthous.Game.Env
 import           Xanthous.Messages (Message)
 import qualified Xanthous.Messages as Messages
 --------------------------------------------------------------------------------
 
-runAppT :: Monad m => AppT m a -> GameState -> m (a, GameState)
-runAppT appt initialState = flip runStateT initialState . unAppT $ appt
-
 halt :: AppT (EventM n) (Next GameState)
 halt = lift . Brick.halt =<< get
 
@@ -53,3 +60,17 @@ message_ msg = message msg $ object []
 
 writeMessage :: MonadState GameState m => Text -> m ()
 writeMessage m = messageHistory %= pushMessage m
+
+-- | Cancel the currently active autocommand, if any
+cancelAutocommand :: (MonadState GameState m, MonadIO m) => m ()
+cancelAutocommand = do
+  traverse_ (liftIO . cancel . snd) =<< preuse (autocommand . _ActiveAutocommand)
+  autocommand .= NoAutocommand
+
+--------------------------------------------------------------------------------
+
+-- | Send an event to the app in an environment where the game env is available
+sendEvent :: (MonadReader GameEnv m, MonadIO m) => AppEvent -> m ()
+sendEvent evt = do
+  ec <- view eventChan
+  liftIO $ writeBChan ec evt