roller (empty) → 0.1.0

raw patch · 8 files changed

+424/−0 lines, 8 filesdep +basedep +optparse-applicativedep +randomsetup-changed

Dependencies added: base, optparse-applicative, random, regex-applicative, roller

Files

• LICENSE +280/−0
• Roller.hs +6/−0
• Roller/CLI.hs +23/−0
• Roller/Core.hs +35/−0
• Roller/Parse.hs +28/−0
• Roller/Types.hs +12/−0
• Setup.hs +2/−0
• roller.cabal +38/−0

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@@ -0,0 +1,6 @@+module Main where++import qualified Roller.Core as Roller++main :: IO ()+main = Roller.main

@@ -0,0 +1,23 @@+module Roller.CLI (+  CLI(..)+, withOpts+) where++import Options.Applicative hiding (Const)+import Control.Applicative++type CLI a = Bool -> Int -> [String] -> a++withOpts :: CLI a -> IO a+withOpts f = execParser . info (helper <*> handleOpts) $ infoMod+  where+  handleOpts =+    f <$> switch ( long "verbose"+                <> short 'v'+                <> help "List out each roll")+      <*> option auto ( long "nrolls"+                <> value 1+                <> short 'n'+                <> help "Number of times to roll the expression")+      <*> some (argument str (metavar "EXPR.." <> help "Dice expressions"))+  infoMod = fullDesc <> progDesc "Roll some dice"

@@ -0,0 +1,35 @@+module Roller.Core (main) where++import Roller.Types+import Roller.Parse+import Roller.CLI++import System.Environment (getArgs)+import System.Random (randomRIO)+import Control.Applicative hiding (Const)+import Control.Monad (join, replicateM, replicateM_)++rolls :: Int -> Int -> IO [Int]+rolls n s = replicateM n . randomRIO $ (1,s)++roll :: DiceExp -> IO [[Int]]+roll de =+  case de of+    Sum e1 e2 -> (++) <$> roll e1 <*> roll e2+    Const n   -> return [[n]]+    Die n s   -> return <$> n `rolls` s++rollEm :: CLI (IO ())+rollEm verbose n args = maybe parseFail rollMany (parse input)+  where+    input        = concat args+    rollMany     = replicateM_ n . rollOnce+    rollOnce exp = fmap summary (roll exp) >>= putStrLn++    summary      = if verbose then show else show . sumRolls+    sumRolls     = sum . map sum+    parseFail    = putStrLn $ "Could not parse \"" ++ input ++ "\" as dice expression!"++main :: IO ()+main = join . withOpts $ rollEm+

@@ -0,0 +1,28 @@+module Roller.Parse (parse) where++import Roller.Types++import Prelude hiding (const, sum)+import Text.Regex.Applicative hiding (Const)+import Data.Char (isDigit, isSpace)++type Parser a = RE Char a++int :: Parser Int+int = read <$> some oneDigit+  where oneDigit = psym isDigit++die :: Parser DiceExp+die = Die <$> int <* sym 'd' <*> int++const :: Parser DiceExp+const = Const <$> int++diceExp :: Parser DiceExp+diceExp = foldl1 Sum <$> terms+  where terms = (:) <$> term <*> many (sym '+' *> term)+        term  = die <|> const++parse :: String -> Maybe DiceExp+parse s = let s' = filter (not . isSpace) s in s' =~ diceExp+

@@ -0,0 +1,12 @@+module Roller.Types where++data DiceExp =+     Die Int Int+   | Const Int+   | Sum DiceExp DiceExp++instance Show DiceExp where+  show (Die n s)   = show n ++ "d" ++ show s+  show (Const n)   = show n+  show (Sum e1 e2) = show e1 ++ "+" ++ show e2+

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,38 @@+name:                roller+version:             0.1.0+synopsis:            Playing with applicatives and dice!+description:         A basic library and program for simulated rolling of+                     polyhedral dice, as would be used in pen and paper RPGs.+homepage:            https://github.com/Econify/roller+license:             GPL-2+license-file:        LICENSE+author:              Louis J. Scoras+maintainer:          lou@econify.com+copyright:           (c) 2013-2014 Econify, LLC+category:            ACME+build-type:          Simple+cabal-version:       >=1.10++source-repository head+ type: git+ location: https://github.com/Econify/roller.git++library+  exposed-modules:     Roller.Core,+                       Roller.Types,+                       Roller.Parse,+                       Roller.CLI+  build-depends:       base ==4.7.*,+                       random >=1.0.1,+                       regex-applicative >=0.3 && <0.3.1,+                       optparse-applicative >=0.5.2 && <0.11.1+  default-language:    Haskell2010++executable roller+  main-is:             Roller.hs+  build-depends:       base ==4.7.*,+                       random >=1.0.1,+                       regex-applicative >=0.3 && <0.3.1,+                       optparse-applicative >=0.5.2 && <0.11.1,+                       roller+  default-language:    Haskell2010