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Diffstat (limited to 'users/glittershark/xanthous/src/Xanthous/Monad.hs')
-rw-r--r-- | users/glittershark/xanthous/src/Xanthous/Monad.hs | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/users/glittershark/xanthous/src/Xanthous/Monad.hs b/users/glittershark/xanthous/src/Xanthous/Monad.hs new file mode 100644 index 000000000000..db602de56f3a --- /dev/null +++ b/users/glittershark/xanthous/src/Xanthous/Monad.hs @@ -0,0 +1,76 @@ +-------------------------------------------------------------------------------- +module Xanthous.Monad + ( AppT(..) + , AppM + , runAppT + , continue + , halt + + -- * Messages + , say + , say_ + , message + , message_ + , writeMessage + + -- * Autocommands + , cancelAutocommand + + -- * Events + , sendEvent + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +import Control.Monad.Random +import Control.Monad.State +import qualified Brick +import Brick (EventM, Next) +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 +-------------------------------------------------------------------------------- + +halt :: AppT (EventM n) (Next GameState) +halt = lift . Brick.halt =<< get + +continue :: AppT (EventM n) (Next GameState) +continue = lift . Brick.continue =<< get + +-------------------------------------------------------------------------------- + +say :: (MonadRandom m, ToJSON params, MonadState GameState m) + => [Text] -> params -> m () +say msgPath = writeMessage <=< Messages.message msgPath + +say_ :: (MonadRandom m, MonadState GameState m) => [Text] -> m () +say_ msgPath = say msgPath $ object [] + +message :: (MonadRandom m, ToJSON params, MonadState GameState m) + => Message -> params -> m () +message msg = writeMessage <=< Messages.render msg + +message_ :: (MonadRandom m, MonadState GameState m) + => Message -> m () +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 |