now building facilities

src/Floorplan.hs

@@ -55,7 +55,8 @@ buildHallFloor fc gen =
       (g2, withIW)     = buildInnerWalls g1 withElv
       withOW           = buildOuterWalls withIW
       closed           = closeOffices withOW
-  in  closed
+      (g3, facilities) = buildFacilities g2 fc closed
+  in  facilities
 
 emptyFloor :: FloorConfig -> Matrix TileState
 emptyFloor fc =
@@ -270,3 +271,43 @@ buildOuterWalls input =
         , ncols horz
         ]
   in  vert
+
+buildFacilities
+  :: StdGen
+  -> FloorConfig
+  -> Matrix TileState
+  -> (StdGen, Matrix TileState)
+buildFacilities gen fc input =
+  let flood ts mat coords@(cr, cc) =
+        let cur = mat M.! coords
+            altered = M.setElem ts coords mat
+        in
+          if cur == ts || cur /= Offi
+          then mat
+          else foldl (\acc cs -> flood ts acc cs)
+            altered
+            [ (cr + 1, cc)
+            , (cr - 1, cc)
+            , (cr, cc + 1)
+            , (cr, cc - 1)
+            ]
+      nearests = map (findNearestOffice input) (facilities fc)
+  in  (foldl (\(agen, acc) x ->
+        let (numfac, ngen) = randomR (0 :: Int, 1 :: Int) agen
+            facil = if numfac == 1 then Kitc else Toil
+        in  (ngen, flood facil acc x)
+        ) (gen, input) nearests)
+
+findNearestOffice
+  :: Matrix TileState
+  -> (Int, Int)
+  -> (Int, Int)
+findNearestOffice mat (rrr, ccc) =
+  let matcoord = (,) <$> [1 .. nrows mat] <*> [1 .. ncols mat]
+      distance (ar, ac) = (ar - rrr) ^ 2 + (ac - ccc) ^ 2
+      inlist = zip matcoord (M.toList mat)
+  in  foldl (\acc@(arow, acol) x@(xc@(crow, ccol), ts) ->
+        if ts == Offi && distance acc > distance xc
+        then xc
+        else acc
+        ) (fst $ head inlist) inlist