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Diffstat (limited to 'src/Xanthous/Entities/Environment.hs')
| -rw-r--r-- | src/Xanthous/Entities/Environment.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Xanthous/Entities/Environment.hs b/src/Xanthous/Entities/Environment.hs index 993714c844c5..430ce1b7a99e 100644 --- a/src/Xanthous/Entities/Environment.hs +++ b/src/Xanthous/Entities/Environment.hs @@ -7,6 +7,7 @@ module Xanthous.Entities.Environment -- * Doors , Door(..) , open + , closed , locked , unlockedDoor @@ -99,6 +100,9 @@ instance Entity Door where entityCollision door | door ^. open = Nothing | otherwise = Just Stop +closed :: Lens' Door Bool +closed = open . involuted not + -- | A closed, unlocked door unlockedDoor :: Door unlockedDoor = Door |