--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/hwmap.hs	Wed Jun 18 17:36:46 2014 +0400
@@ -0,0 +1,32 @@
+module Main where
+
+import qualified Data.ByteString.Lazy as BL
+import Data.Word
+import Data.Int
+import Data.Binary
+import Data.Bits
+import Control.Monad
+
+data LineType = Solid | Erasing
+    deriving Eq
+
+data Chunk = Line LineType Word8 [(Int16, Int16)]
+
+instance Binary Chunk where
+    put (Line lt r ((x1, y1):ps)) = do
+        let flags = r .|. (if lt == Solid then 0 else (1 `shift` 6))
+        putWord8 $ flags .|. (1 `shift` 7)
+        put x1
+        put y1
+        forM_ ps $ \(x, y) -> do
+            putWord8 flags
+            put x
+            put y
+    get = undefined
+
+mapString = BL.drop 8 . encode $
+    [
+        Line Solid 7 [(0, 0), (2048, 1024), (1024, 768)]
+    ]
+
+main = BL.writeFile "out.hwmap" mapString