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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TemplateHaskell #-}
module Cafp.Game
( PlayerId
, Cards (..)
, Game (..)
, gameCards, gamePlayers, gameNextPlayerId
, newGame
, joinGame
, leaveGame
, processClientMessage
, gameViewForPlayer
) where
import Cafp.Messages
import Debug.Trace
import Control.Lens (at, ix, over, to, (%~), (&), (.~), (^.),
(^?), _1, _2)
import Control.Lens.TH (makeLenses, makePrisms)
import Control.Monad (guard)
import qualified Data.HashMap.Strict as HMS
import Data.Maybe (fromMaybe)
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.Vector as V
type PlayerId = Int
data Table
= TableProposing BlackCard (HMS.HashMap PlayerId [WhiteCard])
deriving (Show)
data Game = Game
{ _gameCards :: !Cards
, _gamePlayers :: !(HMS.HashMap PlayerId Text)
, _gameTable :: !Table
, _gameNextPlayerId :: !Int
} deriving (Show)
makePrisms ''Table
makeLenses ''Game
newGame :: Cards -> Game
newGame cards = Game
{ _gameCards = cards
, _gamePlayers = HMS.empty
, _gameTable = TableProposing (BlackCard 0) HMS.empty
, _gameNextPlayerId = 1
}
joinGame :: Game -> (PlayerId, Game)
joinGame game =
let pid = game ^. gameNextPlayerId
name = "Player " <> T.pack (show pid) in
( pid
, game & gameNextPlayerId %~ succ & gamePlayers %~ HMS.insert pid name
)
leaveGame :: PlayerId -> Game -> Game
leaveGame pid = over gamePlayers $ HMS.delete pid
blackCardBlanks :: Cards -> BlackCard -> Int
blackCardBlanks cards (BlackCard c) =
maybe 0 (length . T.breakOnAll "\\BLANK") $ cardsBlack cards V.!? c
validWhiteCard :: Cards -> WhiteCard -> Bool
validWhiteCard cards (WhiteCard c) =
let len = V.length $ cardsWhite cards in c >= 0 && c < len
processClientMessage :: PlayerId -> ClientMessage -> Game -> Game
processClientMessage pid msg game = case msg of
ChangeMyName name ->
game & gamePlayers . ix pid .~ name
ProposeWhiteCards cs
-- Bad card(s) proposed.
| any (not . validWhiteCard (game ^. gameCards)) cs -> game
-- Proposal already made.
| Just _ <- game ^? gameTable . _TableProposing . _2 . ix pid -> game
-- Not enough cards submitted.
| Just b <- game ^? gameTable . _TableProposing . _1
, blackCardBlanks (game ^. gameCards) b /= length cs -> trace
("bad length " ++ show (length cs) ++
" expected " ++ show (blackCardBlanks (game ^. gameCards) b))
game
-- TODO: Check that the card is in the hand of the player.
| otherwise ->
game & gameTable . _TableProposing . _2 . at pid .~ Just cs
gameViewForPlayer :: PlayerId -> Game -> GameView
gameViewForPlayer self game =
let opponents = do
(pid, oname) <- HMS.toList $ game ^. gamePlayers
guard $ pid /= self
pure $ Opponent oname $ case game ^. gameTable of
TableProposing _ proposals -> HMS.member pid proposals
name = fromMaybe "" $ game ^. gamePlayers . at self
table = case game ^. gameTable of
TableProposing black proposals ->
Proposing black . fromMaybe [] $ HMS.lookup self proposals in
GameView
{ gameViewOpponents = opponents
, gameViewMyName = name
, gameViewTable = table
, gameViewHand = [WhiteCard x | x <- [0 .. 9]]
}
|
