module Dodge.Room.Tanks where
import Dodge.Data
import Dodge.LevelGen.Data
import Dodge.RandomHelp
import Dodge.Room.Procedural
import Dodge.Room.Foreground
--import Dodge.Room.RoadBlock
import Dodge.Placement.Instance
import Dodge.PlacementSpot
--import Padding
import Color
--import Shape
import LensHelp

--import Data.Maybe
--import Data.Tree
import Control.Monad.State
import System.Random
import qualified Data.Set as S

randomTank :: RandomGen g => State g Placement
randomTank = takeOne $ map (\f -> f (dim orange) orange)
    [ tankSquareEmboss4
    , tankSquareEmboss
    , tankSquare
    , roundTank
    , roundTankCross
    , tankSquareCross
    ]

tanksRoom :: RandomGen g => [Creature] -> [Item] -> State g Room
tanksRoom crs its = do
    w <- state $ randomR (100,400)
    h <- state $ randomR (200,400)
    ntanks  <- state $ randomR (3,6)
    thetank <- randomTank <&> plSpot .~ unusedOffPathAwayFromLink 50
    let room = roomRectAutoLinks w h
        nwestlnks = length $ filter ((OnEdge West `S.member`) . _rlType) $ _rmLinks room
    girderPosOrder <- shuffle [1 .. nwestlnks - 2]
    let plmnts = 
            --ok, this has become complicated
            foldr1 setFallback [ twoRoomPoss (isUnusedLinkType (FromSouth i)) 
                (isUnusedLinkType (FromSouth i)) $ \ps1 ps2 ->
                sps0 $ PutShape $ girderV 96 20 10 (_psPos ps1) (_psPos ps2) 
                | i <- girderPosOrder]
            : map (\it -> sps0 (PutFlIt it) & plSpot .~ anyUnusedSpot) its
            ++ map (\cr -> sps0 (PutCrit cr) & plSpot .~ unusedSpotAwayFromLink 50) crs
            ++ replicate ntanks thetank
--            , sps0 $ PutShape $ colorSH orange $ pipePP 2 (V3 50 50 25) (V3 50 120 25)
    return $ room & rmPmnts .++~ plmnts
        & rmName .~ "tanksRoom"