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module Main where
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import qualified Data.ByteString.Char8 as B
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import qualified Data.ByteString as BW
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import qualified Data.ByteString.Lazy as BL
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import qualified Codec.Binary.Base64 as Base64
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import Data.Word
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import Data.Int
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import Data.Binary
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import Data.Binary.Put
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import Data.Bits
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import Control.Monad
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import qualified Codec.Compression.Zlib as Z
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data LineType = Solid | Erasing
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deriving Eq
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data Chunk = SpecialPoints [(Int16, Int16)]
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| Line LineType Word8 [(Int16, Int16)]
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transform :: ((Int16, Int16) -> (Int16, Int16)) -> [Chunk] -> [Chunk]
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transform f = map tf
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where
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tf (SpecialPoints p) = SpecialPoints $ map f p
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tf (Line t r p) = Line t r $ map f p
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scale f = transform (\(a, b) -> (a * f, b * f))
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mirror = transform (\(a, b) -> (4095 - a, b))
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translate dx dy = transform (\(a, b) -> (a + dx, b + dy))
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instance Binary Chunk where
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put (SpecialPoints p) = do
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forM_ p $ \(x, y) -> do
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put x
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put y
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putWord8 0
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put (Line lt r ((x1, y1):ps)) = do
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let flags = r .|. (if lt == Solid then 0 else (1 `shift` 6))
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put x1
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put y1
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putWord8 $ flags .|. (1 `shift` 7)
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forM_ ps $ \(x, y) -> do
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put x
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put y
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putWord8 flags
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get = undefined
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compressWithLength :: BL.ByteString -> BL.ByteString
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compressWithLength b = BL.drop 8 . encode . runPut $ do
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put $ ((fromIntegral $ BL.length b)::Word32)
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mapM_ putWord8 $ BW.unpack $ BL.toStrict $ Z.compress b
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mapString :: B.ByteString
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mapString = B.pack . Base64.encode . BW.unpack . BL.toStrict . compressWithLength . BL.drop 8 . encode $ drawnMap01
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main = B.writeFile "out.hwmap" mapString
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drawnMap01 = translate (-3) (-3) $ sp ++ mirror sp ++ base ++ mirror base
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where
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sp = translate 128 128 . scale 256 $ [SpecialPoints [
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(6, 0)
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, (1, 4)
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, (4, 7)
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, (7, 5)
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]]
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base = scale 256 $ [
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l [(5, 0), (5, 1)]
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, l [(7, 0), (7, 1)]
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, l [(8, 1), (6, 1), (6, 4)]
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, l [(8, 1), (8, 6), (6, 6), (6, 7), (8, 7)]
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, l [(7, 2), (7, 5), (5, 5)]
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, l [(5, 3), (5, 8)]
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, l [(6, 2), (4, 2)]
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, l [(1, 1), (4, 1), (4, 7)]
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, l [(3, 5), (3, 7), (2, 7), (2, 8)]
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, l [(2, 1), (2, 2)]
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, l [(0, 2), (1, 2), (1, 3), (3, 3), (3, 2)]
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, l [(0, 5), (1, 5)]
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, l [(1, 4), (4, 4)]
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, l [(2, 4), (2, 6), (1, 6), (1, 7)]
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, l [(0, 8), (8, 8)]
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]
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l = Line Solid 0
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