- (\q -> 0 <= (fst q) && (fst q) < w && (snd q) <= 0 && (snd q) < h)
- [(a,b) | a <- [x-1..x+1], b <- [y-1..y+1], not (a==x && b==y)]
+ -- (\q -> 0 <= (fst q)+x && (fst q)+x < w && (snd q)+y <= 0 && (snd q)+y < h)
+ (\q -> 0 <= (fst q)+x && (fst q)+x < w && 0 <= (snd q)+y && (snd q)+y < h)
+ [(a,b) | a <- [-1..1], b <- [-1..1], not (a==0 && b==0)]
+
+simToString :: Simulation -> [Char]
+simToString sim@Simulation{simW=w} =
+ let simStr = V.toList $ V.map chunkToChar $ simSpace sim
+ in insert w '\n' simStr
+
+-- maps each chunktype to an ascii character
+chunkToChar :: ChunkData -> Char
+chunkToChar c =
+ case chunkType c of
+ Water -> '~'
+ Air -> '.'
+ Wall -> '#'
+ _ -> '?'
+
+-- from https://stackoverflow.com/questions/12659562/insert-specific-element-y-after-every-n-elements-in-a-list
+insert :: Int -> a -> [a] -> [a]
+insert n y xs = countdown n xs where
+ countdown 0 xs = y:countdown n xs
+ countdown _ [] = []
+ countdown m (x:xs) = x:countdown (m-1) xs