move ball on click
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84c5951625
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5e5c140052
1 changed files with 84 additions and 27 deletions
101
src/Main.hs
101
src/Main.hs
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@ -69,30 +69,31 @@ main = do
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0
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[ (V4 (-1/2) 1 0 1, V3 1 0 0)
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, (V4 (1/2) 1 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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, (V4 (1/2) 1 0 1, V3 1 0 0)
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, (V4 1 0 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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, (V4 1 0 0 1, V3 1 0 0)
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, (V4 (1/2) (-1) 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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, (V4 (1/2) (-1) 0 1, V3 1 0 0)
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, (V4 (-1/2) (-1) 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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, (V4 (-1/2) (-1) 0 1, V3 1 0 0)
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, (V4 (-1) 0 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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, (V4 (-1) 0 0 1, V3 1 0 0)
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, (V4 (-1/2) 1 0 1, V3 1 0 0)
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, (V4 0 0 0 0, V3 1 0 0)
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, (V4 0 0 0 1, V3 1 0 0)
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]
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uniformBuffer :: Buffer os (Uniform (B Float)) <- newBuffer 1
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positionUniformBuffer :: Buffer os (Uniform (B2 Float)) <- newBuffer 1
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hexShader <- compileShader $ do
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hexPrimitiveStream :: PrimitiveStream Triangles (V4 VFloat, V3 VFloat) <-
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@ -101,11 +102,20 @@ main = do
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os
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(PrimitiveArray Triangles AttrInput)
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(PrimitiveStream Triangles (VertexFormat AttrInput))
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positionUniform <- getUniform (const (positionUniformBuffer, 0))
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let scaleFact = 0.05
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scaleMatrix a = V4 (V4 a 0 0 0)
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scaleMatrix a =
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V4
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(V4 a 0 0 0)
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(V4 0 a 0 0)
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(V4 0 0 1 0)
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(V4 0 0 0 1)
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transMatrix (V2 ax ay) =
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V4
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(V4 1 0 0 ax)
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(V4 0 1 0 (-ay))
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(V4 0 0 1 1)
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(V4 0 0 0 1)
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hexFragmentStream <- rasterize
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(const
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( FrontAndBack
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@ -113,7 +123,12 @@ main = do
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, DepthRange 0 1
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)
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)
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(fmap (\(position, color) -> (scaleMatrix scaleFact !* position, color))
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(fmap (\(position, color) ->
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( (transMatrix positionUniform !*!
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scaleMatrix scaleFact) !*
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position
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, color
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))
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hexPrimitiveStream)
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drawWindowColor
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(const
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@ -130,7 +145,7 @@ main = do
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os
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(PrimitiveArray Triangles AttrInput)
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(PrimitiveStream Triangles (VertexFormat AttrInput))
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uniform <- getUniform (const (uniformBuffer,0))
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uniform <- getUniform (const (uniformBuffer, 0))
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let primitiveStream2 = fmap
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(\(position, color) -> (position - V4 1 1 0 0, color / 10))
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primitiveStream
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@ -162,10 +177,14 @@ main = do
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-- SDL.showWindow window
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listen@(_, fire) <- liftIO $ newAddHandler
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uniVar <- liftIO $ newTMVarIO 0 :: ContextT FRPBallCtx os IO (TMVar Float)
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network <- liftIO $ compile (networkDescription listen uniVar)
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transUniVar <- liftIO $ newTMVarIO (V2 0 0) ::
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ContextT FRPBallCtx os IO (TMVar (V2 Float))
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network <- liftIO $ compile (networkDescription listen uniVar transUniVar)
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forever $ do
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mrot <- liftIO $ atomically $ tryReadTMVar uniVar
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writeBuffer uniformBuffer 0 [fromMaybe 0 mrot]
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mtrans <- liftIO $ atomically $ tryReadTMVar transUniVar
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writeBuffer positionUniformBuffer 0 [fromMaybe (V2 0 0) mtrans]
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liftIO $ actuate network
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render $ do
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clearWindowColor win (V3 0 0 0)
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@ -183,34 +202,64 @@ main = do
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networkDescription
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:: (AddHandler [SDL.Event], b)
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-> TMVar Float
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-> TMVar (V2 Float)
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-> MomentIO ()
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networkDescription (listenerah, _) univar = mdo
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networkDescription (listenerah, _) rotvar transvar = mdo
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(mouseah, mousefire) <- liftIO $ newAddHandler
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blistener <- fromChanges [] =<< registerListenerEvent listenerah mousefire
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(clickah, clickfire) <- liftIO $ newAddHandler
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blistener <- fromChanges [] =<< registerListenerEvent
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listenerah
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mousefire
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clickfire
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_ <- changes blistener
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emouse <- fromAddHandler =<< registerMouseEvent mouseah
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let reaction = fmap (\x -> do
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eclick <- fromAddHandler =<< registerClickEvent clickah
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let moveReaction = fmap (\x -> do
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let input = (\(V2 xx _) ->
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fromIntegral xx / 100 :: Float) $ SDL.mouseMotionEventRelMotion $
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(\(SDL.MouseMotionEvent dat) -> dat) $ SDL.eventPayload $ head x
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past <- fromMaybe 0 <$> (atomically $ tryReadTMVar univar)
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void $ atomically $ swapTMVar univar (past + input)
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print input) emouse
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reactimate reaction
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past <- fromMaybe 0 <$> (atomically $ tryReadTMVar rotvar)
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void $ atomically $ swapTMVar rotvar (past + input)
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print input)
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emouse
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clickReaction = fmap (\x -> do
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let input =
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(\vect -> fmap (\foo -> foo - 1) (vect / V2 400 300)) $
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(\(SDL.MouseButtonEvent (SDL.MouseButtonEventData _ _ _ _ _ (SDL.P ps))) ->
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fmap fromIntegral ps :: V2 Float) $
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SDL.eventPayload $
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head x
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void $ atomically $ swapTMVar transvar input
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print input)
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eclick
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reactimate moveReaction
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reactimate clickReaction
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registerListenerEvent
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:: (MonadIO m)
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=> AddHandler ([SDL.Event])
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-> ([SDL.Event] -> IO ())
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-> ([SDL.Event] -> IO ())
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-> m (AddHandler [SDL.Event])
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registerListenerEvent listenerah mousefire = do
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_ <- liftIO $ do
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registerListenerEvent listenerah mousefire clickfire = do
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void $ liftIO $
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register listenerah $ \evs -> do
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let fevs = filter (\ev -> case SDL.eventPayload ev of
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let filteredMoveEvents = filter (\ev -> case SDL.eventPayload ev of
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SDL.MouseMotionEvent _ -> True
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_ -> False
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) evs
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if null fevs then return () else mousefire fevs
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filteredClickEvents = filter (\ev -> case SDL.eventPayload ev of
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SDL.MouseButtonEvent
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(SDL.MouseButtonEventData _ SDL.Pressed _ SDL.ButtonLeft 1 _) ->
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True
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_ -> False
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) evs
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if null filteredMoveEvents
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then return ()
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else mousefire filteredMoveEvents
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if null filteredClickEvents
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then return ()
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else clickfire filteredClickEvents
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return listenerah
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registerMouseEvent
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@ -218,5 +267,13 @@ registerMouseEvent
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=> AddHandler [SDL.Event]
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-> m (AddHandler [SDL.Event])
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registerMouseEvent mouseah = do
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_ <- liftIO $ register mouseah $ \_ -> return ()
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void $ liftIO $ register mouseah $ \_ -> return ()
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return mouseah
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registerClickEvent
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:: MonadIO m
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=> AddHandler [SDL.Event]
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-> m (AddHandler [SDL.Event])
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registerClickEvent clickah = do
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void $ liftIO $ register clickah $ \_ -> return ()
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return clickah
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