README.md

@@ -1,13 +0,0 @@
-# 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
-```

app/Main.hs

@@ -2,32 +2,22 @@
 
 module Main where
 
-import Control.Concurrent (threadDelay)
 import Control.Monad (unless)
-import Data.Bifoldable (bimapM_)
+import Data.Bifunctor (Bifunctor (bimap))
-import Data.Bifunctor (Bifunctor (bimap, second))
-import Data.Foldable (Foldable (toList))
-import Data.Functor ((<&>))
-import Data.IORef (IORef, newIORef, readIORef, writeIORef)
-import Data.StateVar (StateVar (StateVar), makeStateVar, mapStateVar)
 import Foreign.C (CInt)
-import SDL (
+import SDL
-  Event (eventPayload),
+  ( Event (eventPayload),
     EventPayload (KeyboardEvent, QuitEvent),
-  Hint (HintRenderScaleQuality),
-  HintPriority (DefaultPriority),
     InitFlag (InitVideo),
     InputMotion (Pressed, Released),
     KeyboardEventData (keyboardEventKeyMotion, keyboardEventKeysym),
     Keysym (keysymKeycode),
-  OpenGLConfig (glMultisampleSamples),
     Point (P),
     Renderer,
     V2 (V2),
-  V3 (V3),
     V4 (V4),
     Window,
-  WindowConfig (WindowConfig, windowGraphicsContext, windowInitialSize),
+    WindowConfig (windowGraphicsContext, windowInitialSize),
     WindowGraphicsContext (OpenGLContext),
     clear,
     createRenderer,
@@ -39,71 +29,23 @@ import SDL (
     drawLine,
     get,
     initialize,
-  pollEvents,
     present,
     quit,
     rendererDrawColor,
-  setHintWithPriority,
     waitEvent,
     windowSize,
     ($=),
   )
 import SDL.Input.Keyboard.Codes
-import System.IO.Unsafe (unsafePerformIO)
-import Text.Printf (PrintfType, printf)
-
-fps :: Int
-fps = 144
-
-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 ""
-
   initialize [InitVideo]
 
   window <-
     createWindow
       "Test"
-      defaultWindow{windowGraphicsContext = OpenGLContext defaultOpenGL, windowInitialSize = V2 800 800}
+      defaultWindow {windowGraphicsContext = OpenGLContext defaultOpenGL, windowInitialSize = V2 800 600}
 
   renderer <- createRenderer window (-1) defaultRenderer
 
@@ -113,111 +55,30 @@ main = do
 
   quit
 
+loop :: Renderer -> Window -> IO ()
+loop renderer window = waitEvent >>= _loop renderer window
+
 exitCodes :: [Keycode]
 exitCodes = [KeycodeQ, KeycodeEscape]
 
-type Point2D = V2 Float
+triangle :: [(V2 Float, V2 Float)]
-
+triangle =
-type Line2D = (Point2D, Point2D)
+  [ (V2 0.25 0.75, V2 0.5 0.25),
-
+    (V2 0.5 0.25, V2 0.75 0.75),
-type Point3D = V3 Float
+    (V2 0.75 0.75, V2 0.25 0.75)
-
-type Line3D = (Point3D, Point3D)
-
-data Pointrel = P2 Point2D | P3 Point3D deriving (Show)
-
-p2 :: Float -> Float -> Pointrel
-p2 x y = P2 (V2 x y)
-
-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
-
-p3 :: Float -> Float -> Float -> Pointrel
-p3 x y z = P3 (V3 x y z)
-
-type Line = (Pointrel, Pointrel)
-
-type Object = [Line]
-
-{- FOURMOLU_DISABLE -}
-square :: Object
-square =
-  [ (p3 (-0.5) (-0.5) (-0.5), p3   0.5  (-0.5) (-0.5)),
-    (p3 (-0.5) (-0.5) (-0.5), p3 (-0.5)   0.5  (-0.5)),
-    (p3 (-0.5) (-0.5) (-0.5), p3 (-0.5) (-0.5)   0.5),
-
-    (p3   0.5    0.5  (-0.5), p3   0.5    0.5    0.5),
-    (p3   0.5    0.5  (-0.5), p3   0.5  (-0.5) (-0.5)),
-    (p3   0.5    0.5  (-0.5), p3 (-0.5)   0.5  (-0.5)),
-
-    (p3 (-0.5) 0.5 0.5, p3   0.5    0.5   0.5),
-    (p3 (-0.5) 0.5 0.5, p3 (-0.5) (-0.5)  0.5),
-    (p3 (-0.5) 0.5 0.5, p3 (-0.5)   0.5 (-0.5)),
-
-
-    (p3 0.5 (-0.5) 0.5, p3   0.5    0.5    0.5),
-    (p3 0.5 (-0.5) 0.5, p3 (-0.5) (-0.5)   0.5),
-    (p3 0.5 (-0.5) 0.5, p3   0.5  (-0.5) (-0.5))
-
   ]
-{- FOURMOLU_ENABLE -}
 
-data Direction = X | Y | Z
+_loop :: Renderer -> Window -> Event -> IO ()
-
+_loop renderer window event = do
-rotate :: Direction -> Direction -> Float -> Point3D -> Point3D
+  let stop =
-rotate X Y ang pnt =
+        case eventPayload event of
-  let (c, s, toRotate, x, y, z) = (cos ang, sin ang, toList pnt, head toRotate, toRotate !! 1, last toRotate)
+          QuitEvent -> True
-   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 ((x * s) + (z * c))
-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 -> return False
+            Pressed -> False
             Released
-              | keyof kevent `elem` exitCodes -> return True
+              | keyof kevent `elem` exitCodes -> True
-              | otherwise -> return False
+              | otherwise -> False
-          _ -> return False
+          _ -> False
-      )
-      events
 
   rendererDrawColor renderer $= V4 255 255 255 255
   clear renderer
@@ -225,56 +86,14 @@ loop renderer window = do
   rendererDrawColor renderer $= V4 0 0 0 255
 
   size <- get $ windowSize window
-
+  mapM_ (uncurry (drawLine renderer) . bimap (tosdl size) (tosdl size)) triangle
-  oldObjs <- readIORef objects
-
-  mapM_ (mapM_ (bimapM_ (logPutStr logState . flip (++) " " . show . toP3) (logPrint logState . toP3)) . snd) oldObjs
-  logPutStrLn logState ""
-  logPutStrLn logState "rotateprint"
-  mapM_ (mapM_ (bimapM_ (rotateprint pi . toP3) (rotateprint pi . toP3)) . snd) oldObjs
-  logPutStrLn logState "rotateprint"
-
-  logPutStrLn logState ""
-
-  readIORef delta >>= writeIORef delta . (+ (0.25 / 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 (map (bimap (P3 . rotate X Z ang . toP3) (P3 . rotate X Z ang . toP3)) . snd)
-  -- let rotated = map (map (bimap (P3 . rotate X Y ang . toP3) (P3 . rotate X Z ang . toP3))) rotated1
-  let moved = map (map (bimap (P3 . (+) (V3 0 0 tmpDelta) . toP3) (P3 . (+) (V3 0 0 tmpDelta) . toP3))) rotated
-
-  readIORef objects >>= mapM_ (mapM_ (logPrint logState) . snd)
-  logPutStrLn logState ""
-
-  mapM_ (mapM_ (uncurry (drawLine renderer) . bimap (tosdl size) (tosdl size))) moved
 
   present renderer
 
-  unless (or stop) continue
+  unless stop continue
   where
-  continue = threadDelay (1000000 `div` fps) >> loop renderer window
+    continue = waitEvent >>= _loop renderer window
     keyof = keysymKeycode . keyboardEventKeysym
 
-{-
+tosdl :: V2 CInt -> V2 Float -> Point V2 CInt
- - we apply the formula
+tosdl size rel = P $ fmap round $ fmap fromIntegral size * rel
- - (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 = (\vec -> V2 (head vec / last vec) (vec !! 1 / last vec)) . toList
-
-{-
- - 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

fourmolu.yaml

@@ -1,77 +0,0 @@
-# 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: []

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:    README.md
+extra-doc-files:    CHANGELOG.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, StateVar
+    build-depends:    base ^>=4.18.3.0, sdl2 >= 2.5.5.1
 
     -- Directories containing source files.
     hs-source-dirs:   app