224 lines
7.1 KiB
Haskell
224 lines
7.1 KiB
Haskell
module Util where
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import Affection as A
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import Data.Matrix as M
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import qualified Data.HashSet as HS
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import qualified Data.Set as S
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import qualified Data.Map as Map
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import Data.ByteString.Lazy (toStrict)
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import Data.Graph.AStar
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import Data.Maybe
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import qualified SDL
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import qualified Graphics.Rendering.OpenGL as GL hiding (get)
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import System.Exit (exitFailure)
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import Linear
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import NanoVG hiding (V2(..))
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import NanoVG.Internal.Image (ImageFlags(..))
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import Codec.Picture as CP
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import Codec.Picture.Extra
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-- internal imports
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import Types
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convertTileToImg :: Matrix TileState -> Matrix (Maybe ImgId)
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convertTileToImg mat = fromLists conversion
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where
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conversion =
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map (\(i, ls) -> map (uncurry $ convertTile i) (zip [1..] ls))
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(zip [1..] (toLists mat))
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convertTile irow icol tile =
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case tile of
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Wall -> Just (case neighWalls irow icol mat of
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4 ->
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ImgWallCross
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3
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| M.safeGet (irow + 1) icol mat /= Just Wall &&
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M.safeGet (irow + 1) icol mat /= Just Door ->
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ImgWallTNW
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| M.safeGet irow (icol + 1) mat /= Just Wall &&
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M.safeGet irow (icol + 1) mat /= Just Door ->
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ImgWallTSW
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| M.safeGet (irow - 1) icol mat /= Just Wall &&
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M.safeGet (irow - 1) icol mat /= Just Door ->
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ImgWallTSE
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| otherwise ->
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ImgWallTNE
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2
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| (M.safeGet (irow + 1) icol mat == Just Wall ||
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M.safeGet (irow + 1) icol mat == Just Door) &&
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(M.safeGet (irow - 1) icol mat == Just Wall ||
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M.safeGet (irow - 1) icol mat == Just Door) ->
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ImgWallDesc
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| (M.safeGet irow (icol + 1) mat == Just Wall ||
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M.safeGet irow (icol + 1) mat == Just Door) &&
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(M.safeGet irow (icol - 1) mat == Just Wall ||
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M.safeGet irow (icol - 1) mat == Just Door) ->
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ImgWallAsc
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| (M.safeGet (irow - 1) icol mat == Just Wall ||
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M.safeGet (irow - 1) icol mat == Just Door) &&
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(M.safeGet irow (icol - 1) mat == Just Wall ||
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M.safeGet irow (icol - 1) mat == Just Door) ->
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ImgWallCornerW
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| (M.safeGet irow (icol - 1) mat == Just Wall ||
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M.safeGet irow (icol - 1) mat == Just Door) &&
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(M.safeGet (irow + 1) icol mat == Just Wall ||
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M.safeGet (irow + 1) icol mat == Just Door) ->
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ImgWallCornerS
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| (M.safeGet (irow + 1) icol mat == Just Wall ||
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M.safeGet (irow + 1) icol mat == Just Door) &&
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(M.safeGet irow (icol + 1) mat == Just Wall ||
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M.safeGet irow (icol + 1) mat == Just Door) ->
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ImgWallCornerE
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| otherwise ->
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ImgWallCornerN
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1
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| M.safeGet (irow - 1) icol mat == Just Wall ||
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M.safeGet (irow - 1) icol mat == Just Door ->
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ImgWallDesc
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| M.safeGet (irow + 1) icol mat == Just Wall ||
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M.safeGet (irow + 1) icol mat == Just Door ->
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ImgWallDesc
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| M.safeGet irow (icol + 1) mat == Just Wall ||
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M.safeGet irow (icol + 1) mat == Just Door ->
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ImgWallAsc
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| otherwise ->
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ImgWallAsc
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0 ->
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ImgWallCross
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_ ->
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error "unexpected number if neighbouring walls"
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)
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Offi
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| any
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(\(rr, cc) -> M.safeGet (irow + rr) (icol + cc) mat == Just Door)
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[(1, 0), (-1, 0), (0, 1), (0, -1)] ->
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Just ImgEmpty
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| otherwise ->
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Nothing
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_ ->
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Nothing
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neighWalls :: Int -> Int -> Matrix TileState -> Int
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neighWalls row col mat =
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Prelude.foldl (\acc (ir, ic) ->
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if M.safeGet (row + ir) (col + ic) mat == Just Wall ||
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M.safeGet (row + ir) (col + ic) mat == Just Door
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then acc + 1
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else acc
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)
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0
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[ (0, -1)
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, (-1, 0)
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, (0, 1)
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, (1, 0)
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]
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relativizeMouseCoords :: V2 Int32 -> IO (V2 Double)
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relativizeMouseCoords (V2 ix iy) = do
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(GL.Position vx vy, GL.Size vw vh) <- SDL.get GL.viewport
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let rx = ix - vx
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ry = iy - vy
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hx = fromIntegral vw / 2
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hy = fromIntegral vh / 2
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dx = fromIntegral rx - hx
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dy = fromIntegral ry - hy
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return $ V2 (dx / hx) (dy / hy)
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inBounds :: V2 Int -> Boundaries Int -> Bool
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inBounds (V2 r c) (Boundaries (minr, minc) (maxr, maxc)) =
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(r >= minr && r <= maxr) && (c >= minc && c <= maxc)
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astarAppl :: Matrix (Maybe ImgId) -> V2 Int -> V2 Int -> Maybe [V2 Int]
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astarAppl imgmat target start = aStar
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(naviGraph imgmat)
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(\a b -> distance (fmap fromIntegral a) (fmap fromIntegral b))
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(\a -> distance (fmap fromIntegral target) (fmap fromIntegral a))
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(== target)
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start
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naviGraph :: Matrix (Maybe ImgId) -> V2 Int -> HS.HashSet (V2 Int)
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naviGraph imgmat (V2 r c) =
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let list1 =
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foldl
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(\acc (or, oc) ->
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if null
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(fromMaybe [] $
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imgObstacle <$> M.safeGet (r + or) (c + oc) imgmat)
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then V2 (r + or) (c + oc): acc
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else acc
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)
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[]
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[(0, 1), (0, -1), (1, 0), (-1, 0)]
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list2 =
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foldl
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(\acc (or, oc) ->
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if null (fromMaybe [] $
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imgObstacle <$> M.safeGet (r + or) (c + oc) imgmat)
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&& all null
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(map
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(\(oor, ooc) -> fromMaybe [] $
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imgObstacle <$> M.safeGet (r + oor) (c + ooc) imgmat)
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[(0, oc), (or, 0)])
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then V2 (r + or) (c + oc): acc
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else acc
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)
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[]
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[(-1, -1), (-1, 1), (1, -1), (1, 1)]
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in HS.fromList (list1 ++ list2)
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drawLoadScreen :: UserData -> Float -> IO ()
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drawLoadScreen ud progress = do
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let ctx = nano ud
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save ctx
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fillColor ctx (rgb 255 128 0)
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fontSize ctx 100
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fontFace ctx (assetFonts ud Map.! FontBedstead)
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textAlign ctx (S.fromList [AlignCenter, AlignTop])
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textBox ctx 0 300 1280 "Loading"
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beginPath ctx
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rect ctx
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(640 - 640 * realToFrac progress) 450 (1280 * realToFrac progress) 20
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closePath ctx
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fill ctx
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restore ctx
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loadAnimationSprites
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:: FilePath -- Path to Sprite map
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-> Context -- NanoVG context
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-> [(AnimId, AnimationConfig)]
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-> IO [(AnimId, Animation)]
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loadAnimationSprites fp nvg idconfs = do
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eimg <- readImage fp
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case eimg of
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Left err -> do
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logIO Error err
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exitFailure
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Right dimg -> do
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let img = convertRGBA8 dimg
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mapM
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(\(id, (AnimationConfig (xoffs, yoffs) (w, h) count dur pb)) -> do
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let crs = map
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(\i -> crop (xoffs + (i * w)) yoffs w h img)
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[0 .. (count - 1)]
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mresimgs <- mapM
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(\cr ->
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createImageMem nvg (ImagePremultiplied) (toStrict $ encodePng cr))
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crs
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imgs <- if any isNothing mresimgs
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then do
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logIO Error ("failed to load: " ++ fp ++ " " ++ show id)
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exitFailure
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else
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return $ catMaybes mresimgs
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return $
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( id
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, Animation dur imgs pb
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)
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) idconfs
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