roguelike/src/Game.hs

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{-# LANGUAGE TemplateHaskell #-}
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module Game where
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import Lens.Micro.TH
import Lens.Micro
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import Dungeon
import Player
import Direction
import Action
data Game = Game
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{ _dungeon :: Dungeon
, _player :: Player
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}
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makeLenses ''Game
newGame :: Game
newGame = Game (makeDungeon 30 10) (Player (0,0))
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runAction :: Action -> Game -> Maybe Game
runAction (Walk N) game = Just $ game & player . pos . _2 -~ 1
runAction (Walk S) game = Just $ game & player . pos . _2 +~ 1
runAction (Walk W) game = Just $ game & player . pos . _1 -~ 1
runAction (Walk E) game = Just $ game & player . pos . _1 +~ 1
runAction (Walk NW) game = Just $ game & player . pos . both -~ 1
runAction (Walk NE) game = Just $ game & player . pos %~ (\(x,y) -> (x+1, y-1))
runAction (Walk SW) game = Just $ game & player . pos %~ (\(x,y) -> (x-1, y+1))
runAction (Walk SE) game = Just $ game & player . pos . both +~ 1
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runAction None g = Just g
runAction ExitGame _ = Nothing