1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
module Xanthous.Game
( GameState(..)
, entities
, revealedPositions
, messageHistory
, randomGen
, promptState
, GamePromptState(..)
, getInitialState
, initialStateFromSeed
, positionedCharacter
, character
, characterPosition
, updateCharacterVision
, characterVisiblePositions
-- * Messages
, MessageHistory(..)
, HasMessages(..)
, HasTurn(..)
, HasDisplayedTurn(..)
, pushMessage
, previousMessage
, nextTurn
-- * Collisions
, Collision(..)
, collisionAt
-- * App monad
, AppT(..)
-- * Saving the game
, saveGame
, loadGame
, saved
-- * Debug State
, DebugState(..)
, debugState
, allRevealed
) where
--------------------------------------------------------------------------------
import qualified Codec.Compression.Zlib as Zlib
import Codec.Compression.Zlib.Internal (DecompressError)
import qualified Data.Aeson as JSON
import System.IO.Unsafe
--------------------------------------------------------------------------------
import Xanthous.Prelude
import Xanthous.Game.State
import Xanthous.Game.Lenses
import Xanthous.Game.Arbitrary ()
import Xanthous.Entities.Entities ()
--------------------------------------------------------------------------------
saveGame :: GameState -> LByteString
saveGame = Zlib.compress . JSON.encode
loadGame :: LByteString -> Maybe GameState
loadGame = JSON.decode <=< decompressZlibMay
where
decompressZlibMay bs
= unsafeDupablePerformIO
$ (let r = Zlib.decompress bs in r `seq` pure (Just r))
`catch` \(_ :: DecompressError) -> pure Nothing
saved :: Prism' LByteString GameState
saved = prism' saveGame loadGame
|
