converted to lenses
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223
src/Main.hs
223
src/Main.hs
@ -20,11 +20,12 @@ import Foreign (Ptr, castPtr, with)
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import Foreign.C (CFloat)
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-- Math
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import Control.Lens ((^.))
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import Control.Lens ((^.), (.~), (%~))
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import Linear as L
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-- GUI
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import Graphics.UI.SDL as SDL hiding (Position)
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import qualified Graphics.UI.SDL as SDL (Position)
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import Graphics.UI.SDL as SDL
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--import Graphics.UI.SDL.TTF as TTF
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--import Graphics.UI.SDL.TTF.Types
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@ -50,7 +51,7 @@ import qualified Debug.Trace as D (trace)
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main :: IO ()
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main = do
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SDL.withInit [InitVideo, InitAudio] $ do --also: InitNoParachute -> faster, without parachute!
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SDL.withWindow "Pioneers" (Position 100 100) (Size 1024 600) [WindowOpengl -- we want openGL
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SDL.withWindow "Pioneers" (SDL.Position 100 100) (Size 1024 600) [WindowOpengl -- we want openGL
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,WindowShown -- window should be visible
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,WindowResizable -- and resizable
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,WindowInputFocus -- focused (=> active)
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@ -119,7 +120,7 @@ main = do
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, _yAngle = pi/2
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, _zDist = 10
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, _frustum = frust
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, _camPosition = Position
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, _camPosition = Types.Position
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{ Types._x = 5
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, Types._y = 5
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}
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@ -134,7 +135,7 @@ main = do
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, _dragStartY = 0
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, _dragStartXAngle = 0
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, _dragStartYAngle = 0
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, _mousePosition = Position
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, _mousePosition = Types.Position
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{ Types._x = 5
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, Types._y = 5
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}
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@ -160,23 +161,23 @@ main = do
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draw :: Pioneers ()
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draw = do
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state <- get
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let xa = get (camera . xAngle) state --stateXAngle state
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ya = stateYAngle state
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(GL.UniformLocation proj) = shdrProjMatIndex state
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(GL.UniformLocation nmat) = shdrNormalMatIndex state
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(GL.UniformLocation vmat) = shdrViewMatIndex state
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(GL.UniformLocation tli) = shdrTessInnerIndex state
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(GL.UniformLocation tlo) = shdrTessOuterIndex state
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vi = shdrVertexIndex state
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ni = shdrNormalIndex state
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ci = shdrColorIndex state
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numVert = mapVert state
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map' = stateMap state
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frust = stateFrustum state
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camX = statePositionX state
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camY = statePositionY state
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zDist = stateZDist state
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tessFac = stateTessellationFactor state
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let xa = state ^. camera.xAngle
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ya = state ^. camera.yAngle
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(GL.UniformLocation proj) = state ^. gl.glMap.shdrProjMatIndex
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(GL.UniformLocation nmat) = state ^. gl.glMap.shdrNormalMatIndex
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(GL.UniformLocation vmat) = state ^. gl.glMap.shdrViewMatIndex
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(GL.UniformLocation tli) = state ^. gl.glMap.shdrTessInnerIndex
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(GL.UniformLocation tlo) = state ^. gl.glMap.shdrTessOuterIndex
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vi = state ^. gl.glMap.shdrVertexIndex
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ni = state ^. gl.glMap.shdrNormalIndex
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ci = state ^. gl.glMap.shdrColorIndex
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numVert = state ^. gl.glMap.mapVert
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map' = state ^. gl.glMap.stateMap
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frust = state ^. camera.frustum
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camX = state ^. camera.camPosition.x
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camY = state ^. camera.camPosition.y
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zDist' = state ^. camera.zDist
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tessFac = state ^. gl.glMap.stateTessellationFactor
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liftIO $ do
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--(vi,GL.UniformLocation proj) <- initShader
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GL.clear [GL.ColorBuffer, GL.DepthBuffer]
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@ -187,7 +188,7 @@ draw = do
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checkError "foo"
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--set up camera
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let ! cam = getCam (camX,camY) zDist xa ya
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let ! cam = getCam (camX,camY) zDist' xa ya
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with (distribute cam) $ \ptr ->
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glUniformMatrix4fv vmat 1 0 (castPtr (ptr :: Ptr (M44 CFloat)))
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checkError "foo"
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@ -226,11 +227,11 @@ draw = do
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run :: Pioneers ()
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run = do
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win <- asks envWindow
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env <- ask
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-- draw Scene
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draw
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liftIO $ glSwapWindow win
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liftIO $ glSwapWindow (env ^. windowObject)
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-- getEvents & process
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processEvents
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@ -238,15 +239,15 @@ run = do
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state <- get
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-- change in camera-angle
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when (stateDragging state) $ do
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let sodx = stateDragStartX state
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sody = stateDragStartY state
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sodxa = stateDragStartXAngle state
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sodya = stateDragStartYAngle state
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x = stateCursorPosX state
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y = stateCursorPosY state
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let myrot = (x - sodx) / 2
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mxrot = (y - sody) / 2
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when (state ^. mouse.isDragging) $ do
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let sodx = state ^. mouse.dragStartX
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sody = state ^. mouse.dragStartY
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sodxa = state ^. mouse.dragStartXAngle
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sodya = state ^. mouse.dragStartYAngle
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x' = state ^. mouse.mousePosition.x
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y' = state ^. mouse.mousePosition.y
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myrot = (x' - sodx) / 2
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mxrot = (y' - sody) / 2
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newXAngle = curb (pi/12) (0.45*pi) newXAngle'
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newXAngle' = sodxa + mxrot/100
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newYAngle
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@ -254,25 +255,22 @@ run = do
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| newYAngle' < (-pi) = newYAngle' + 2 * pi
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| otherwise = newYAngle'
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newYAngle' = sodya + myrot/100
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put $ state
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{ stateXAngle = newXAngle
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, stateYAngle = newYAngle
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}
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modify $ ((camera.xAngle) .~ newXAngle)
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. ((camera.yAngle) .~ newYAngle)
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-- get cursor-keys - if pressed
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--TODO: Add sin/cos from stateYAngle
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(kxrot, kyrot) <- fmap (join (***) fromIntegral) getArrowMovement
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modify $ \s ->
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let
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multc = cos $ stateYAngle s
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mults = sin $ stateYAngle s
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in
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s {
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statePositionX = statePositionX s - 0.2 * kxrot * multc
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- 0.2 * kyrot * mults
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, statePositionY = statePositionY s + 0.2 * kxrot * mults
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- 0.2 * kyrot * multc
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}
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let
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multc = cos $ state ^. camera.yAngle
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mults = sin $ state ^. camera.yAngle
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modx x' = x' - 0.2 * kxrot * multc
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- 0.2 * kyrot * mults
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mody y' = y' - 0.2 * kxrot * mults
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- 0.2 * kyrot * multc
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modify $ (camera.camPosition.x %~ modx)
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. (camera.camPosition.y %~ mody)
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{-
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--modify the state with all that happened in mt time.
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@ -281,49 +279,45 @@ run = do
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{
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}
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-}
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mt <- liftIO $ do
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now <- getCurrentTime
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diff <- return $ diffUTCTime now (stateClock state) -- get time-diffs
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diff <- return $ diffUTCTime now (state ^. io.clock) -- get time-diffs
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title <- return $ unwords ["Pioneers @ ",show ((round .fromRational.toRational $ 1.0/diff)::Int),"fps"]
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setWindowTitle win title
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setWindowTitle (env ^. windowObject) title
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sleepAmount <- return $ floor (max 0 (0.04 - diff))*1000000 -- get time until next frame in microseconds
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threadDelay sleepAmount
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return now
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-- set state with new clock-time
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modify $ \s -> s
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{
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stateClock = mt
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}
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shouldClose <- return $ stateWinClose state
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modify $ io.clock .~ mt
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shouldClose <- return $ state ^. window.shouldClose
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unless shouldClose run
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getArrowMovement :: Pioneers (Int, Int)
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getArrowMovement = do
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state <- get
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aks <- return $ stateArrowsPressed state
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aks <- return $ state ^. (keyboard.arrowsPressed)
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let
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horz = left' + right'
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vert = up'+down'
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left' = if arrowLeft aks then -1 else 0
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right' = if arrowRight aks then 1 else 0
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up' = if arrowUp aks then -1 else 0
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down' = if arrowDown aks then 1 else 0
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left' = if aks ^. left then -1 else 0
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right' = if aks ^. right then 1 else 0
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up' = if aks ^. up then -1 else 0
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down' = if aks ^. down then 1 else 0
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return (horz,vert)
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adjustWindow :: Pioneers ()
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adjustWindow = do
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state <- get
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let fbWidth = stateWindowWidth state
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fbHeight = stateWindowHeight state
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let fbWidth = state ^. window.width
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fbHeight = state ^. window.height
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fov = 90 --field of view
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near = 1 --near plane
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far = 100 --far plane
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ratio = fromIntegral fbWidth / fromIntegral fbHeight
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frust = createFrustum fov near far ratio
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liftIO $ glViewport 0 0 (fromIntegral fbWidth) (fromIntegral fbHeight)
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put $ state {
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stateFrustum = frust
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}
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modify $ camera.frustum .~ frust
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processEvents :: Pioneers ()
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@ -337,18 +331,15 @@ processEvents = do
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processEvent :: Event -> Pioneers ()
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processEvent e = do
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return ()
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case eventData e of
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Window _ winEvent ->
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case winEvent of
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Closing ->
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modify $ \s -> s {
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stateWinClose = True
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}
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modify $ window.shouldClose .~ True
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Resized {windowResizedTo=size} -> do
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modify $ \s -> s {
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stateWindowWidth = sizeWidth size
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,stateWindowHeight = sizeHeight size
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}
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modify $ (window.width .~ (sizeWidth size))
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. (window.height .~ (sizeHeight size))
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adjustWindow
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SizeChanged ->
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adjustWindow
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@ -357,78 +348,50 @@ processEvent e = do
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--liftIO $ putStrLn $ unwords ["Unhandled Window-Event:",show e]
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Keyboard movement _ isRepeated key -> --up/down window(ignored) true/false actualKey
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-- need modifiers? use "keyModifiers key" to get them
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let aks = keyboard.arrowsPressed in
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case keyScancode key of
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Escape ->
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modify $ \s -> s {
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stateWinClose = True
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}
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modify $ window.shouldClose .~ True
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SDL.Left ->
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modify $ \s -> s {
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stateArrowsPressed = (stateArrowsPressed s) {
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arrowLeft = movement == KeyDown
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}
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}
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modify $ aks.left .~ (movement == KeyDown)
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SDL.Right ->
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modify $ \s -> s {
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stateArrowsPressed = (stateArrowsPressed s) {
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arrowRight = movement == KeyDown
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}
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}
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modify $ aks.right .~ (movement == KeyDown)
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SDL.Up ->
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modify $ \s -> s {
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stateArrowsPressed = (stateArrowsPressed s) {
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arrowUp = movement == KeyDown
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}
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}
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modify $ aks.up .~ (movement == KeyDown)
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SDL.Down ->
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modify $ \s -> s {
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stateArrowsPressed = (stateArrowsPressed s) {
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arrowDown = movement == KeyDown
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}
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}
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modify $ aks.down .~ (movement == KeyDown)
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SDL.KeypadPlus ->
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when (movement == KeyDown) $ do
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modify $ \s -> s {
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stateTessellationFactor = min (stateTessellationFactor s + 1) 5
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}
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modify $ (gl.glMap.stateTessellationFactor) %~ ((min 5) . (+1))
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state <- get
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liftIO $ putStrLn $ unwords ["Tessellation at: ", show $ stateTessellationFactor state]
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liftIO $ putStrLn $ unwords ["Tessellation at: ", show $ state ^. gl.glMap.stateTessellationFactor]
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SDL.KeypadMinus ->
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when (movement == KeyDown) $ do
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modify $ \s -> s {
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stateTessellationFactor = max (stateTessellationFactor s - 1) 1
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}
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modify $ (gl.glMap.stateTessellationFactor) %~ ((max 1) . (+(-1)))
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state <- get
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liftIO $ putStrLn $ unwords ["Tessellation at: ", show $ stateTessellationFactor state]
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liftIO $ putStrLn $ unwords ["Tessellation at: ", show $ state ^. gl.glMap.stateTessellationFactor]
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_ ->
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return ()
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MouseMotion _ mouseId st (Position x y) xrel yrel -> do
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MouseMotion _ mouseId st (SDL.Position x y) xrel yrel -> do
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state <- get
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when (stateMouseDown state && not (stateDragging state)) $
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put $ state
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{ stateDragging = True
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, stateDragStartX = fromIntegral x
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, stateDragStartY = fromIntegral y
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, stateDragStartXAngle = stateXAngle state
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, stateDragStartYAngle = stateYAngle state
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}
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modify $ \s -> s {
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stateCursorPosX = fromIntegral x
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, stateCursorPosY = fromIntegral y
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}
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MouseButton _ mouseId button state (Position x y) ->
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when (state ^. mouse.isDown && not (state ^. mouse.isDragging)) $
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modify $ (mouse.isDragging .~ True)
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. (mouse.dragStartX .~ (fromIntegral x))
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. (mouse.dragStartY .~ (fromIntegral y))
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. (mouse.dragStartXAngle .~ (state ^. camera.xAngle))
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. (mouse.dragStartYAngle .~ (state ^. camera.yAngle))
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modify $ (mouse.mousePosition. Types.x .~ (fromIntegral x))
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. (mouse.mousePosition. Types.y .~ (fromIntegral y))
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MouseButton _ mouseId button state (SDL.Position x y) ->
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case button of
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LeftButton -> do
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let pressed = state == Pressed
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modify $ \s -> s {
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stateMouseDown = pressed
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}
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modify $ mouse.isDown .~ pressed
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unless pressed $ do
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st <- get
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if stateDragging st then
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modify $ \s -> s {
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stateDragging = False
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}
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if st ^. mouse.isDragging then
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modify $ mouse.isDragging .~ False
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else
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clickHandler (UI.Callbacks.Pixel x y)
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RightButton -> do
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@ -437,11 +400,9 @@ processEvent e = do
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return ()
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MouseWheel _ mouseId hscroll vscroll -> do
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env <- ask
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modify $ \s -> s
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{ stateZDist =
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let zDist' = stateZDist s + realToFrac (negate vscroll)
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in curb (envZDistClosest env) (envZDistFarthest env) zDist'
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}
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Quit -> modify $ \s -> s {stateWinClose = True}
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state <- get
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let zDist' = (state ^. camera.zDist) + realToFrac (negate vscroll) in
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modify $ camera.zDist .~ (curb (env ^. zDistClosest) (env ^. zDistFarthest) zDist')
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Quit -> modify $ window.shouldClose .~ True
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-- there is more (joystic, touchInterface, ...), but currently ignored
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_ -> liftIO $ putStrLn $ unwords ["Not processing Event:", show e]
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16
src/Types.hs
16
src/Types.hs
@ -101,8 +101,18 @@ data State = State
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, _game :: !GameState
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}
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$(mkLabels [''State, ''GLState, ''GLMapState, ''KeyboardState, ''ArrowKeyState,
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''MouseState, ''GameState, ''IOState, ''CameraState, ''WindowState,
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''Position, ''Env])
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$(makeLenses ''State)
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$(makeLenses ''GLState)
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$(makeLenses ''GLMapState)
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$(makeLenses ''KeyboardState)
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$(makeLenses ''ArrowKeyState)
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$(makeLenses ''MouseState)
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$(makeLenses ''GameState)
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$(makeLenses ''IOState)
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$(makeLenses ''CameraState)
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$(makeLenses ''WindowState)
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$(makeLenses ''Position)
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$(makeLenses ''Env)
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type Pioneers = RWST Env () State IO
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