113 lines
3.5 KiB
Haskell
113 lines
3.5 KiB
Haskell
module Dodge.Inventory
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( checkInvSlotsYou
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, rmSelectedInvItem
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, addItem
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, rmInvItem
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, updateCloseObjects
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, closeObjScrollDir
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, swapInvDir
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, dirInvPos
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)
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where
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import Dodge.Data
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import Dodge.Base
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import Dodge.Base.Collide
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import Geometry
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import FoldableHelp
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import Padding
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import qualified IntMapHelp as IM
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--import Data.Maybe
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import Data.List
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--import System.Random
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import Control.Lens
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-- | Finds first available slot where a new item may be placed in your inventory
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checkInvSlotsYou :: Item -> World -> Maybe Int
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checkInvSlotsYou it w = checkInvSlotsH it invListSelFirst
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where
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youCr = you w
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youSel = _crInvSel youCr
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invList = _crInv youCr
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invListSelFirst = (youSel , invList IM.! youSel) : IM.toList invList
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checkInvSlotsH :: Item -> [(Int,Item)] -> Maybe Int
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checkInvSlotsH it = fmap fst . find cond
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where
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cond (_,NoItem) = True
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cond (_,it' ) = itNotFull it' && _itName it == _itName it'
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---- | Finds first available slot where a new item may be placed in the inventory
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--checkInvSlots :: Item -> IM.IntMap Item -> Maybe Int
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--checkInvSlots it = checkInvSlotsH it . IM.toList
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addItem :: Item -> Item -> Item
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addItem it NoItem = it
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addItem _ it' = it' & itAmount +~ 1
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--numInventorySlots :: Int
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--numInventorySlots = 9
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itNotFull :: Item -> Bool
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itNotFull it = case it ^? itMaxStack of
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Just themax -> themax > _itAmount it
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Nothing -> False
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rmInvItem
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:: Int -- ^ Creature id
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-> Int -- ^ Inventory position
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-> World
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-> World
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rmInvItem cid itid w = case w ^? creatures . ix cid . crInv . ix itid . itAmount of
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Just x | x > 1 -> w & creatures . ix cid . crInv . ix itid . itAmount %~ subtract 1
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_ -> w & creatures . ix cid . crInv . ix itid .~ NoItem
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{- Delete a creature's selected item, the item will no longer exist. -}
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rmSelectedInvItem
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:: Int -- ^ Creature id
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-> World
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-> World
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rmSelectedInvItem cid w = rmInvItem cid (_crInvSel (_creatures w IM.! cid)) w
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updateCloseObjects :: World -> World
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updateCloseObjects w = w & closeObjects .~ unionBy eTest oldCloseFiltered currentClose
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where
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filt = filter $ \obj -> dist ypos (pos obj) < 40 && hasLOS ypos (pos obj) w
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ypos = _crPos $ you w
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objs = map Left (IM.elems $ _floorItems w) ++ activeButtons
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activeButtons = map Right
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. filter ( (/=) BtNoLabel . _btState)
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. IM.elems
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$ _buttons w
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pos (Right x) = _btPos x
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pos (Left x) = _flItPos x
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eTest (Right x) (Right y) = _btID x == _btID y
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eTest (Left x) (Left y) = _flItID x == _flItID y
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eTest _ _ = False
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currentClose = filt objs
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oldClose = filt $ _closeObjects w
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oldCloseFiltered = intersectBy eTest oldClose currentClose
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closeObjScrollDir :: Float -> World -> World
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closeObjScrollDir x
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| x > 0 = over closeObjects rotU
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| x < 0 = over closeObjects rotD
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| otherwise = id
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swapInvDir :: Int -> World -> World
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swapInvDir k w = w & creatures . ix (_yourID w) %~ updatecreature
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where
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updatecreature = ( crInv %~ IM.swapKeys (i `mod` n) swapi )
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. (crLeftInvSel . _Just %~ updateLeftInvSel)
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swapi = (i + k) `mod` n
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updateLeftInvSel li | i == li = swapi
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| swapi == li = i
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| otherwise = li
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i = _crInvSel $ you w
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n = length $ IM.keys $ _crInv $ _creatures w IM.! _yourID w
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dirInvPos :: Int -> World -> World
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dirInvPos i w = w
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& creatures . ix (_yourID w) . crInvSel %~ (`mod` n) . subtract i
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where
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n = length $ IM.keys $ _crInv $ _creatures w IM.! _yourID w
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