diff --git a/README.md b/README.md new file mode 100644 index 0000000..4f3cbcf --- /dev/null +++ b/README.md @@ -0,0 +1,13 @@ +# Haskel game +what if game, but in haskel? +a game made in Haskell with the sdl2 library +not a game yet + +to build execute: +```sh +cabal build +``` +to run execute: +```sh +cabal run +``` diff --git a/app/Main.hs b/app/Main.hs index e65418b..a36eddc 100644 --- a/app/Main.hs +++ b/app/Main.hs @@ -1,51 +1,128 @@ +{-# LANGUAGE FlexibleInstances #-} {-# LANGUAGE OverloadedStrings #-} module Main where +import Control.Concurrent (threadDelay) import Control.Monad (unless) +import Control.Monad.IO.Class (MonadIO) import Data.Bifunctor (Bifunctor (bimap)) +import Data.Foldable (Foldable (toList)) +import Data.Functor ((<&>)) +import Data.IORef (IORef, newIORef, readIORef, writeIORef) import Foreign.C (CInt) -import SDL - ( Event (eventPayload), - EventPayload (KeyboardEvent, QuitEvent), - InitFlag (InitVideo), - InputMotion (Pressed, Released), - KeyboardEventData (keyboardEventKeyMotion, keyboardEventKeysym), - Keysym (keysymKeycode), - Point (P), - Renderer, - V2 (V2), - V4 (V4), - Window, - WindowConfig (windowGraphicsContext, windowInitialSize), - WindowGraphicsContext (OpenGLContext), - clear, - createRenderer, - createWindow, - defaultOpenGL, - defaultRenderer, - defaultWindow, - destroyWindow, - drawLine, - get, - initialize, - present, - quit, - rendererDrawColor, - waitEvent, - windowSize, - ($=), - ) +import SDL ( + Event (eventPayload), + EventPayload (KeyboardEvent, QuitEvent), + InitFlag (InitVideo), + InputMotion (Pressed, Released), + KeyboardEventData (keyboardEventKeyMotion, keyboardEventKeysym), + Keysym (keysymKeycode), + Point (P), + Renderer, + V2 (V2), + V3 (V3), + V4 (V4), + Window, + WindowConfig (windowGraphicsContext, windowInitialSize), + WindowGraphicsContext (OpenGLContext), + clear, + createRenderer, + createWindow, + defaultOpenGL, + defaultRenderer, + defaultWindow, + destroyWindow, + drawLine, + drawPoint, + get, + initialize, + pollEvents, + present, + quit, + rendererDrawColor, + windowSize, + ($=), + ) import SDL.Input.Keyboard.Codes +import System.IO.Unsafe (unsafePerformIO) +import Text.Printf (printf) + +fps :: Int +fps = 60 + +data LoggingState = On | Off + +{-# INLINE logState #-} +logState :: LoggingState +logState = Off + +{-# INLINE logPrint #-} +logPrint :: (Show a) => LoggingState -> a -> IO () +logPrint On = print +logPrint Off = return . donothing + +{-# INLINE logPutStr #-} +logPutStr :: LoggingState -> String -> IO () +logPutStr On = putStr +logPutStr Off = return . donothing + +{-# INLINE logPutStrLn #-} +logPutStrLn :: LoggingState -> String -> IO () +logPutStrLn On = putStrLn +logPutStrLn Off = return . donothing + +{-# INLINE donothing #-} +donothing :: a -> () +donothing _ = () main :: IO () main = do + logPutStrLn logState "to2D test:" + logPutStr logState "V3 0.5 0.5 0: " + logPrint logState $ to2D $ V3 0.5 0.5 0 + logPutStr logState "V3 0.5 0.5 1: " + logPrint logState $ to2D $ V3 0.5 0.5 1 + logPutStr logState "V3 0.5 0.5 2: " + logPrint logState $ to2D $ V3 0.5 0.5 2 + + logPutStr logState "V3 0.75 0.5 0: " + logPrint logState $ to2D $ V3 0.75 0.5 0 + logPutStr logState "V3 0.75 0.5 1: " + logPrint logState $ to2D $ V3 0.75 0.5 1 + logPutStr logState "V3 0.75 0.5 2: " + logPrint logState $ to2D $ V3 0.75 0.5 2 + logPutStrLn logState "" + + let tmpPoint = + Lines + ( [ Line (p3 0 0 0, p3 1 0 0) + ], + p3 0 0 0 + ) + let movedPoint = move (Right (V3 0 0 1 :: V3 Float)) tmpPoint + let rotatedPoint = rotate X Z (pi / 2) movedPoint + let rotatedPoint2 = rotate X Z (-(pi / 2)) rotatedPoint + let movedBackPoint = move (Right (V3 0 0 (-1) :: V3 Float)) rotatedPoint2 + putStr "tmpPoint: " + print tmpPoint + putStr "movedPoint: " + print movedPoint + putStr "debugGetCenteredObject movedPoint: " + print $ debugGetCenteredObject movedPoint + putStr "rotatedPoint: " + print rotatedPoint + putStr "rotatedPoint2: " + print rotatedPoint2 + putStr "movedBackPoint: " + print movedBackPoint + initialize [InitVideo] window <- createWindow "Test" - defaultWindow {windowGraphicsContext = OpenGLContext defaultOpenGL, windowInitialSize = V2 800 600} + defaultWindow{windowGraphicsContext = OpenGLContext defaultOpenGL, windowInitialSize = V2 800 800} renderer <- createRenderer window (-1) defaultRenderer @@ -55,45 +132,234 @@ main = do quit -loop :: Renderer -> Window -> IO () -loop renderer window = waitEvent >>= _loop renderer window - exitCodes :: [Keycode] exitCodes = [KeycodeQ, KeycodeEscape] -triangle :: [(V2 Float, V2 Float)] -triangle = - [ (V2 0.25 0.75, V2 0.5 0.25), - (V2 0.5 0.25, V2 0.75 0.75), - (V2 0.75 0.75, V2 0.25 0.75) - ] +type Point2D = V2 Float -_loop :: Renderer -> Window -> Event -> IO () -_loop renderer window event = do - let stop = - case eventPayload event of - QuitEvent -> True +type Line2D = (Point2D, Point2D) + +type Point3D = V3 Float + +type Line3D = (Point3D, Point3D) + +class Drawable a where + draw :: (MonadIO m, Functor m) => Window -> Renderer -> a -> m () + absRotate :: Direction -> Direction -> Float -> a -> a + rotate :: Direction -> Direction -> Float -> a -> a + move :: Either (V2 Float) (V3 Float) -> a -> a + movePrecise :: a -> a -> a + +data Pointrel = P2 Point2D | P3 Point3D deriving (Show) + +p2 :: Float -> Float -> Pointrel +p2 x y = P2 (V2 x y) + +p3 :: Float -> Float -> Float -> Pointrel +p3 x y z = P3 (V3 x y z) + +toP2 :: Pointrel -> Point2D +toP2 (P2 pnt) = pnt +toP2 (P3 pnt) = to2D pnt + +toP3 :: Pointrel -> Point3D +toP3 (P3 pnt) = pnt +toP3 (P2 pnt) = let oldvec = toList pnt in V3 (head oldvec) (last oldvec) 0 + +instance Drawable Pointrel where + draw window renderer (P3 pnt) = draw window renderer $ P2 $ to2D pnt + draw window renderer pnt = get (windowSize window) >>= drawPoint renderer . flip tosdl pnt + move (Left d2) (P2 p2D) = P2 $ p2D + d2 + move (Right d3) (P2 p2D) = P3 $ (\x -> V3 (head x) (last x) (0 :: Float)) (toList p2D) + d3 + move (Left d2) (P3 p3D) = P3 $ (\x -> V3 (head x) (last x) (0 :: Float)) (toList d2) + p3D + move (Right d3) (P3 p3D) = P3 $ p3D + d3 + movePrecise a (P2 b) = move (Left b) a + movePrecise a (P3 b) = move (Right b) a + absRotate dir1 dir2 ang (P3 pnt) = P3 $ _rotate dir1 dir2 ang pnt + absRotate dir1 dir2 ang pnt = P3 $ _rotate dir1 dir2 ang $ toP3 pnt + rotate _ _ _ = id + +newtype Line = Line (Pointrel, Pointrel) deriving (Show) +toLines :: [(Pointrel, Pointrel)] -> [Line] +toLines = map Line +unLine :: Line -> (Pointrel, Pointrel) +unLine (Line points) = points + +instance Drawable Line where + draw window renderer (Line points) = get (windowSize window) >>= (\size -> uncurry (drawLine renderer) $ bimap (tosdl size) (tosdl size) points) + move a (Line (b, c)) = Line (move a b, move a c) + movePrecise (Line (a1, b1)) (Line (a2, b2)) = Line (movePrecise a1 a2, movePrecise b1 b2) + absRotate dir1 dir2 ang (Line line) = Line $ bimap (absRotate dir1 dir2 ang) (absRotate dir1 dir2 ang) line + rotate dir1 dir2 ang (Line (P2 p_1, P2 p_2)) = let mid = (p_1 + p_2) / 2 in move (Left mid) $ absRotate dir1 dir2 ang $ Line (P2 (p_1 - mid), P2 (p_2 - mid)) + rotate dir1 dir2 ang (Line (P2 _p_1, P3 p_2)) = + let + p_1 = toP3 (P2 _p_1) + mid = (p_1 + p_2) / 2 + in + move (Right mid) $ absRotate dir1 dir2 ang $ Line (P3 (p_1 - mid), P3 (p_2 - mid)) + rotate dir1 dir2 ang (Line (P3 p_1, P2 _p_2)) = + let + p_2 = toP3 (P2 _p_2) + mid = (p_1 + p_2) / 2 + in + move (Right mid) $ absRotate dir1 dir2 ang $ Line (P3 (p_1 - mid), P3 (p_2 - mid)) + rotate dir1 dir2 ang (Line (P3 p_1, P3 p_2)) = let mid = (p_1 + p_2) / 2 in move (Right mid) $ absRotate dir1 dir2 ang $ Line (P3 (p_1 - mid), P3 (p_2 - mid)) + +data Object = Lines ([Line], Pointrel) | Points ([Pointrel], Pointrel) deriving (Show) + +instance Drawable Object where + draw window renderer (Lines (obj, _)) = mapM_ (draw window renderer) obj + draw window renderer (Points (obj, _)) = mapM_ (draw window renderer) obj + move a (Lines (b, c)) = Lines (map (move a) b, move a c) + move a (Points (b, c)) = Points (map (move a) b, move a c) + movePrecise _ = id + absRotate dir1 dir2 ang (Lines (obj, center)) = Lines (map (absRotate dir1 dir2 ang) obj, center) + absRotate dir1 dir2 ang (Points (obj, center)) = Points (map (absRotate dir1 dir2 ang) obj, center) + rotate dir1 dir2 ang (Lines (obj, P3 center)) = move (Right center) $ absRotate dir1 dir2 ang $ Lines (map (move $ Right $ center * (-1)) obj, p3 0 0 0) + rotate dir1 dir2 ang (Lines (obj, P2 center)) = move (Left center) $ absRotate dir1 dir2 ang $ Lines (map (move $ Left $ center * (-1)) obj, p2 0 0) + rotate dir1 dir2 ang (Points (obj, P3 center)) = move (Right center) $ absRotate dir1 dir2 ang $ Points (map (move $ Right $ center * (-1)) obj, p3 0 0 0) + rotate dir1 dir2 ang (Points (obj, P2 center)) = move (Left center) $ absRotate dir1 dir2 ang $ Points (map (move $ Left $ center * (-1)) obj, p2 0 0) + +debugGetCenteredObject :: Object -> Object +debugGetCenteredObject (Lines (obj, P3 center)) = Lines (map (move $ Right $ center * (-1)) obj, P3 center) +debugGetCenteredObject (Lines (obj, P2 center)) = Lines (map (move $ Left $ center * (-1)) obj, P2 center) +debugGetCenteredObject (Points (obj, P3 center)) = Points (map (move $ Right $ center * (-1)) obj, P3 center) +debugGetCenteredObject (Points (obj, P2 center)) = Points (map (move $ Left $ center * (-1)) obj, P2 center) + +{- FOURMOLU_DISABLE -} +square :: Object +square = + Lines + ( toLines + [ (p3 (-1) (-1) 0, p3 1 (-1) 0), + (p3 (-1) (-1) 0, p3 (-1) 1 0), + (p3 (-1) (-1) 0, p3 (-1) (-1) 2), + + (p3 1 1 0, p3 1 1 2), + (p3 1 1 0, p3 1 (-1) 0), + (p3 1 1 0, p3 (-1) 1 0), + + (p3 (-1) 1 2, p3 1 1 2), + (p3 (-1) 1 2, p3 (-1) (-1) 2), + (p3 (-1) 1 2, p3 (-1) 1 0), + + (p3 1 (-1) 2, p3 1 1 2), + (p3 1 (-1) 2, p3 (-1) (-1) 2), + (p3 1 (-1) 2, p3 1 (-1) 0) + ], + p3 0 0 1 + ) +{- FOURMOLU_ENABLE -} + +data Direction = X | Y | Z + +_rotate :: Direction -> Direction -> Float -> Point3D -> Point3D +_rotate X Y ang pnt = + let (c, s, toRotate, x, y, z) = (cos ang, sin ang, toList pnt, head toRotate, toRotate !! 1, last toRotate) + in V3 ((x * c) - (y * s)) ((x * s) + (y * c)) z +_rotate X Z ang pnt = + let (c, s, toRotate, x, y, z) = (cos ang, sin ang, toList pnt, head toRotate, toRotate !! 1, last toRotate) + in V3 ((x * c) + (z * s)) y ((z * c) - (s * x)) +_rotate Y Z ang pnt = + let (c, s, toRotate, x, y, z) = (cos ang, sin ang, toList pnt, head toRotate, toRotate !! 1, last toRotate) + in V3 x ((y * c) - (z * s)) ((y * s) + (z * c)) +_rotate Y X a p = _rotate X Y a p +_rotate Z X a p = _rotate X Z a p +_rotate Z Y a p = _rotate Y Z a p +_rotate X X _ _ = error "cant't rotate around 2 axis simultaniously" +_rotate Y Y _ _ = error "cant't rotate around 2 axis simultaniously" +_rotate Z Z _ _ = error "cant't rotate around 2 axis simultaniously" + +_rotateprint :: LoggingState -> Float -> Point3D -> IO () +_rotateprint On ang pnt = + let (c, s, toRotate, x, y, z) = (cos ang, sin ang, toList pnt, head toRotate, toRotate !! 1, last toRotate) + in printf "c: %f, s: %f, x: %f, y: %f, z: %f\n" c s x y z +_rotateprint Off _ _ = return () + +rotateprint :: Float -> Point3D -> IO () +rotateprint = _rotateprint logState + +objects :: IORef [(Int, Object)] +{-# NOINLINE objects #-} +objects = unsafePerformIO (newIORef [(0 :: Int, square)]) + +delta :: IORef Float +{-# NOINLINE delta #-} +delta = unsafePerformIO (newIORef 0) + +loop :: Renderer -> Window -> IO () +loop renderer window = do + events <- pollEvents + stop <- + mapM + ( \event -> case eventPayload event of + QuitEvent -> return True KeyboardEvent kevent -> case keyboardEventKeyMotion kevent of - Pressed -> False + Pressed -> return False Released - | keyof kevent `elem` exitCodes -> True - | otherwise -> False - _ -> False + | keyof kevent `elem` exitCodes -> return True + | otherwise -> return False + _ -> return False + ) + events rendererDrawColor renderer $= V4 255 255 255 255 clear renderer rendererDrawColor renderer $= V4 0 0 0 255 - size <- get $ windowSize window - mapM_ (uncurry (drawLine renderer) . bimap (tosdl size) (tosdl size)) triangle + -- size <- get $ windowSize window + + -- oldObjs <- readIORef objects + + -- readIORef delta >>= writeIORef delta . (+ (0.05 / fromIntegral fps)) + tmpDelta <- readIORef delta + let ang = 2 * pi * tmpDelta + -- readIORef objects >>= (writeIORef objects . map (second (map (bimap (P3 . (+) (V3 0 0 delta) . toP3) (P3 . (+) (V3 0 0 delta) . toP3))))) + -- readIORef objects >>= (writeIORef objects . map (second (map (bimap (P3 . rotate X Z ang . toP3) (P3 . rotate X Z ang . toP3))))) + + rotated <- readIORef objects <&> map snd -- <&> map (rotate Y Z ang . snd) + mapM_ (logPrint logState) rotated + -- let rotated = map (map (bimap (P3 . rotate X Y ang . toP3) (P3 . rotate X Z ang . toP3))) rotated1 + let moved = map (move (Right (V3 0 0 tmpDelta))) rotated + mapM_ (logPrint logState) moved + + logPutStrLn logState "" + + -- putStr "\ESC[H\ESC[2J" + -- mapM_ (mapM_ (bimapM_ (putStr . flip (++) " " . show . toP3) (print . toP3))) moved + mapM_ (draw window renderer . rotate Y Z ang . rotate X Y ang . rotate X Z ang) moved + -- mapM_ (draw window renderer) moved present renderer - unless stop continue - where - continue = waitEvent >>= _loop renderer window - keyof = keysymKeycode . keyboardEventKeysym + writeIORef delta $ (+) tmpDelta $ 0.25 / fromIntegral fps + unless (or stop) continue + where + continue = threadDelay (1000000 `div` fps) >> loop renderer window + keyof = keysymKeycode . keyboardEventKeysym -tosdl :: V2 CInt -> V2 Float -> Point V2 CInt -tosdl size rel = P $ fmap round $ fmap fromIntegral size * rel +{- + - we apply the formula + - (x, y, z) -> (x/z, y/z) + - then change back from -1..1 to 0..2 + - and finally from 0..2 to 0..1 + -} +to2D :: Point3D -> Point2D +to2D pointin + | last vec == 0 = to2D $ pointin + V3 0 0 0.01 + | otherwise = V2 (head vec / last vec) ((vec !! 1) / last vec) + where + vec = toList pointin + +{- + - size `toIntegral` + - rel from -1..1 to 0..2 + - rel from 0..2 to 0..1 + - multiply size to rel + - round it + - return it in point form + -} +tosdl :: V2 CInt -> Pointrel -> Point V2 CInt +tosdl size (P2 rel) = P $ fmap round $ fmap fromIntegral size * (1 - ((rel + 1) / 2)) +tosdl size (P3 rel) = tosdl size $ P2 $ to2D rel diff --git a/fourmolu.yaml b/fourmolu.yaml new file mode 100644 index 0000000..0d3efb9 --- /dev/null +++ b/fourmolu.yaml @@ -0,0 +1,77 @@ +# Number of spaces per indentation step +indentation: 2 + +# Max line length for automatic line breaking +column-limit: none + +# Styling of arrows in type signatures (choices: trailing, leading, or leading-args) +function-arrows: trailing + +# How to place commas in multi-line lists, records, etc. (choices: leading or trailing) +comma-style: trailing + +# Styling of import/export lists (choices: leading, trailing, or diff-friendly) +import-export-style: diff-friendly + +# Rules for grouping import declarations +import-grouping: legacy + +# Whether to full-indent or half-indent 'where' bindings past the preceding body +indent-wheres: false + +# Whether to leave a space before an opening record brace +record-brace-space: false + +# Number of spaces between top-level declarations +newlines-between-decls: 1 + +# How to print Haddock comments (choices: single-line, multi-line, or multi-line-compact) +haddock-style: multi-line + +# How to print module docstring +haddock-style-module: null + +# Where to put docstring comments in function signatures (choices: auto, leading, or trailing) +haddock-location-signature: auto + +# Styling of let blocks (choices: auto, inline, newline, or mixed) +let-style: auto + +# How to align the 'in' keyword with respect to the 'let' keyword (choices: left-align, right-align, or no-space) +in-style: right-align + +# Styling of if-statements (choices: indented or hanging) +if-style: indented + +# Whether to put parentheses around a single constraint (choices: auto, always, or never) +single-constraint-parens: always + +# Whether to put parentheses around a single deriving class (choices: auto, always, or never) +single-deriving-parens: always + +# Whether to sort constraints +sort-constraints: false + +# Whether to sort derived classes +sort-derived-classes: false + +# Whether to sort deriving clauses +sort-deriving-clauses: false + +# Whether to place section operators (those that are infixr 0, such as $) in trailing position, continuing the expression indented below +trailing-section-operators: true + +# Output Unicode syntax (choices: detect, always, or never) +unicode: detect + +# Give the programmer more choice on where to insert blank lines +respectful: true + +# Fixity information for operators +fixities: [] + +# Module reexports Fourmolu should know about +reexports: [] + +# Modules defined by the current Cabal package for import grouping +local-modules: [] diff --git a/haskell-game.cabal b/haskell-game.cabal index 854856f..99684aa 100644 --- a/haskell-game.cabal +++ b/haskell-game.cabal @@ -49,7 +49,7 @@ category: Game build-type: Simple -- Extra doc files to be distributed with the package, such as a CHANGELOG or a README. -extra-doc-files: CHANGELOG.md +extra-doc-files: README.md -- Extra source files to be distributed with the package, such as examples, or a tutorial module. -- extra-source-files: @@ -71,7 +71,7 @@ executable haskell-game -- other-extensions: -- Other library packages from which modules are imported. - build-depends: base ^>=4.18.3.0, sdl2 >= 2.5.5.1 + build-depends: base ^>=4.18.3.0, sdl2 >= 2.5.5.1, StateVar -- Directories containing source files. hs-source-dirs: app