Split UseItem module
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module Dodge.CreatureAction.UseItem
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where
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import Dodge.Data
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import Dodge.Inventory
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import qualified Data.IntMap as IM
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import Control.Lens
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import Data.Maybe (fromMaybe)
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useItemContinuous :: Int -> World -> World
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useItemContinuous n w = case (_crInv cr IM.! _crInvSel cr) ^? itHammer of
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Just HammerUp -> useItem1 n $ setHammerDown w
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Just NoHammer -> useItem1 n w
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_ -> setHammerDown w
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where
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cr = _creatures w IM.! n
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setHammerDown = creatures . ix n . crInv . ix (_crInvSel cr) . itHammer .~ HammerDown
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tryUseItem :: Int -> World -> World
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tryUseItem cid w = case w ^? creatures . ix cid of
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Just cr -> useItem2 cid (_crInv cr IM.! _crInvSel cr) w
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Nothing -> w
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useItem1 :: Int -> World -> World
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useItem1 n w = useItem2 n it w
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where c = (_creatures w IM.! n)
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it = _crInv c IM.! _crInvSel c
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useItem2 :: Int -> Item -> World -> World
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useItem2 n (Consumable {_cnEffect=eff }) w = fromMaybe w $ fmap (rmInvItem n) $ eff n w
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useItem2 n (Weapon {_wpFire=eff}) w = eff n w
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useItem2 n (Throwable {_twFire = eff}) w = eff n w
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useItem2 _ _ w = w
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