I forgot to push this

src/Menu.hs

@@ -0,0 +1,19 @@
+module Menu where
+
+import Affection
+import qualified SDL
+
+import Debug.Trace
+
+import Types
+
+handleMenuEvent :: Double -> SDL.Event -> Affection UserData ()
+handleMenuEvent sec e = do
+  ad <- get
+  case SDL.eventPayload e of
+    SDL.WindowClosedEvent _ -> do
+      traceM "seeya!"
+      put ad
+        { quitEvent = True
+        }
+    _ -> return ()

src/StateMachine.hs

@@ -0,0 +1,100 @@
+{-# LANGUAGE MultiParamTypeClasses #-}
+
+module StateMachine where
+
+import Affection
+import qualified SDL
+import GEGL
+
+import qualified Data.Map as M
+import Data.Maybe (catMaybes)
+
+import Control.Monad (foldM, when)
+
+import System.Random (randomRIO)
+
+import Types
+import Commons
+import InGame
+
+class StateMachine a us where
+  smLoad   :: a -> Affection us ()
+  smUpdate :: a -> Double -> Affection us ()
+  smEvent  :: a -> Double -> SDL.Event -> Affection us ()
+  smDraw   :: a -> Affection us ()
+  smClean  :: a -> Affection us ()
+
+instance StateMachine State UserData where
+  smLoad Menu = do
+    ud <- getAffection
+    liftIO $ gegl_node_link
+      (nodeGraph ud M.! KeyMenuOver)
+      (nodeGraph ud M.! KeyFGNop)
+    hs <- liftIO $ catMaybes <$> foldM (\acc _ -> do
+      px <- randomRIO (0, 800)
+      py <- randomRIO (0, 600)
+      insertHaskelloid acc Nothing (px, py)
+      ) [] ([0..9] :: [Int])
+    liftIO $ gegl_node_link_many $ map hFlange hs
+    liftIO $ gegl_node_link (last $ map hFlange hs) (nodeGraph ud M.! KeyHNop)
+    putAffection ud
+      { haskelloids = hs
+      , fade = FadeIn 1
+      , state = Menu
+      }
+
+  smLoad InGame = loadGame
+
+  smUpdate Menu sec = do
+    ud <- getAffection
+    nhs <- mapM (updateHaskelloid sec) (haskelloids ud)
+    case fade ud of
+      FadeIn ttl -> do
+        liftIO $ gegl_node_set (nodeGraph ud M.! KeyMenuText) $
+          Operation "gegl:text"
+            [ Property "color" $ PropertyColor $ GEGL.RGBA 1 1 1 (1.1 - ttl)
+            ]
+        putAffection ud
+          { fade = if (ttl - sec) > 0 then FadeIn (ttl - sec) else FadeOut 1
+          , haskelloids = nhs
+          }
+      FadeOut ttl -> do
+        liftIO $ gegl_node_set (nodeGraph ud M.! KeyMenuText) $
+          Operation "gegl:text"
+            [ Property "color" $ PropertyColor $ GEGL.RGBA 1 1 1 ttl
+            ]
+        putAffection ud
+          { fade = if (ttl - sec) > 0 then FadeOut (ttl - sec) else FadeIn 1
+          , haskelloids = nhs
+          }
+
+  smUpdate InGame sec = updateGame sec
+
+  smEvent Menu _ e = do
+    ad <- get
+    case SDL.eventPayload e of
+      SDL.KeyboardEvent dat ->
+        case SDL.keysymKeycode $ SDL.keyboardEventKeysym dat of
+          SDL.KeycodeSpace ->
+            when (SDL.keyboardEventKeyMotion dat == SDL.Pressed) $ do
+              ud <- getAffection
+              liftIO $ gegl_node_disconnect (nodeGraph ud M.! KeyFGNop) "input"
+              smLoad InGame
+          _ -> return ()
+      SDL.WindowClosedEvent _ ->
+        put ad
+          { quitEvent = True
+          }
+      _ -> return ()
+
+  smEvent InGame sec e = handleGameEvent sec e 
+
+  smDraw Menu = do
+    ud <- getAffection
+    liftIO $ gegl_node_process $ nodeGraph ud M.! KeySink
+    present
+      (GeglRectangle 0 0 800 600)
+      (buffer ud)
+      True
+
+  smDraw InGame = drawGame