started with some necoding

[mc1516pa.git] / code / Sokoban.icl

diff --git a/code/Sokoban.icl b/code/Sokoban.icl
index 9102bc1..804a7cd 100644 (file)
--- a/code/Sokoban.icl
+++ b/code/Sokoban.icl
@@ -22,16 +22,27 @@ instance toString SokobanTile where
        toString Box = "$"
        toString Agent = "@"
        toString Target = "."
+       toString TargetBox = "*"
+       toString TargetAgent = "+"
+
+parseFromFile :: *File -> (SokobanPuzzle, *File)
+parseFromFile f
+# (contents, f) = readEntireFile f
+| isEmpty contents = abort "File is empty or unreadable"
+= (Sokoban (parseRows contents), f)
 
 parse :: String *World -> (SokobanPuzzle, *World)
 parse fp w
 # (ok, f, w) = fopen fp FReadText w
 | not ok = abort ("Couldn't open file: '" +++ fp +++ "'")
-# (contents, f) = readEntireFile f
-| isEmpty contents = abort "File is empty or unreadable"
+# (puzzle, f) = parseFromFile f
 # (ok, w) = fclose f w
 | not ok = abort "Couldn't close file"
-= (Sokoban (parseRows contents), w)
+= (puzzle, w)
+
+numberOfBlocks :: SokobanPuzzle -> Int
+numberOfBlocks (Sokoban bs) = let fbs = flatten bs in
+       length ([1\\(Box)<-fbs] ++ [1\\(TargetBox)<-fbs])
 
 parseRows :: [Char] -> [[SokobanTile]]
 parseRows cs = case parseRow cs of
@@ -48,6 +59,8 @@ parseRow [x:xs]
        '$' = Box
        '@' = Agent
        '.' = Target
+       '+' = TargetAgent
+       '*' = TargetBox
        ' ' = Free
        _ = abort ("Unknown char: '" +++ toString x +++ "'")
 = ([current:rest], xs)