packages feed

conductive-base (empty) → 0.1

raw patch · 13 files changed

+2230/−0 lines, 13 filesdep +MissingHdep +basedep +containerssetup-changed

Dependencies added: MissingH, base, containers, time

Files

+ LICENSE view
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+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ Sound/Conductive/ConductiveBase.hs view
@@ -0,0 +1,22 @@+------------------------------------------------------------------------------++-- ConductiveBase.hs+-- created: Wed Oct 27 00:32:30 JST 2010++------------------------------------------------------------------------------++module Sound.Conductive.ConductiveBase where++import Control.Concurrent+import Control.Concurrent.MVar+import Data.Map +import Data.Maybe+import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.ConductiveDefaults+import Sound.Conductive.Generator+import Sound.Conductive.IOI+import Sound.Conductive.MusicalEnvironment+import Sound.Conductive.MusicalTime+import Sound.Conductive.MVarUtils+import Sound.Conductive.Player+import Sound.Conductive.Table
+ Sound/Conductive/ConductiveBaseData.hs view
@@ -0,0 +1,87 @@+------------------------------------------------------------------------------++-- ConductiveBaseData.hs+-- created: Sun Oct 31 22:54:24 JST 2010++------------------------------------------------------------------------------++module Sound.Conductive.ConductiveBaseData where++import Control.Concurrent.MVar+import Data.IORef+import Data.Map++data Generator a = Generator+    { generatorSource :: MVar [a]+    , sourceLength :: IORef Int+    , generatorCounter :: IORef Int+    }++-- | a data type for traditional musical time++data MusicalTime = MusicalTime { measure :: Int+                               , beat :: Double+                               } deriving (Show)++-- | a data type for describing a tempo and when it began++data TempoChange = TempoChange { newTempo :: Double+                               , beatOfTempoChange :: Double+                               , timeOfTempoChange :: Double+                               } deriving (Show)++-- | a data type describing a time signature and when it began. A time signature is specified as number of beats per measure.++data TimeSignature = TimeSignature { startingMeasure :: Int+                                   , startingBeat :: Double+                                   , timeSignature :: Int+                                   } deriving (Show)++-- | for Players, the key time-related data type++data TempoClock = TempoClock { startTime :: Double+                             , tempoChanges :: [TempoChange]+                             , timeSignatureChanges :: [TimeSignature]+                             } deriving (Show)+++-- | Players, TempoClocks, etc. are stored here.++data MusicalEnvironment = MusicalEnvironment+    { environmentName :: String+    , playerStore :: Map String Player+    , tempoClockStore :: Map String TempoClock+    , iOIStore :: Map String (MVar MusicalEnvironment -> Player -> IO Double)+    , actionStore :: Map String (MVar MusicalEnvironment -> Player -> IO ())+    , interruptStore :: Map String ([IO ()])+    , doubleGeneratorStore :: Map String (Generator Double)+    , iOIListStore :: Map String [Double]+    }++instance Show MusicalEnvironment where+    show x = environmentName x++-- | a data type used by the play function and useful when displaying running players++data PlayerStatus =   Stopped +                    | Playing +                    | Pausing +                    | Paused +                    | Stopping +                    | Resetting+                    deriving (Eq,Show)++-- | Players are played using the play functions.++data Player = Player+    { playerName :: String+    , playerStatus :: PlayerStatus+    , playerCounter :: Integer+    , playerClock :: String+    , playerIOI :: String+    , playerAction :: String+    , playerInterrupt :: String+    , playerBeat :: Double+    , playerStartingBeat :: Double+    , playerPauseTime :: Double+    } deriving (Show)
+ Sound/Conductive/ConductiveDefaults.hs view
@@ -0,0 +1,78 @@+------------------------------------------------------------------------------++-- ConductiveDefaults.hs+-- created: Fri Oct  1 23:21:01 JST 2010++------------------------------------------------------------------------------++-- This module contains useful defaults for getting started with Conductive.++module Sound.Conductive.ConductiveDefaults where++import Control.Concurrent.MVar+import Data.Map+import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.Generator+import Sound.Conductive.IOI+import Sound.Conductive.MusicalEnvironment+import Sound.Conductive.MusicalTime+import Sound.Conductive.Player++defaultPlayerStore :: Data.Map.Map String Player+defaultPlayerStore = newPlayerStore ("default",("default","defaultIOI","defaultAction",50))++defaultTempoClock :: IO TempoClock+defaultTempoClock = do+    s <- currentTime+    let defaultTempo = TempoChange { newTempo = 120+                                   , beatOfTempoChange = 0+                                   , timeOfTempoChange = s+                                   }+    let defaultTS = TimeSignature { startingMeasure = 0+                                  , startingBeat = 0+                                  , timeSignature = 4+                                  }+    return $ TempoClock { startTime = s+                        , tempoChanges = [defaultTempo]+                        , timeSignatureChanges = [defaultTS]+                        }++defaultTempoClockStore :: IO (Map [Char] TempoClock)+defaultTempoClockStore = do +    t <- defaultTempoClock+    return $ fromList [("default",t)]++defaultActionStore :: Data.Map.Map [Char] (t -> t1 -> IO ())+defaultActionStore = fromList [("defaultAction", (\x y -> putStrLn "yeah!"))]++defaultIOI :: MVar MusicalEnvironment -> Player -> IO Double+defaultIOI e p = iOIFromList e p "default"++defaultIOIStore+  :: Data.Map.Map+       [Char] (MVar MusicalEnvironment -> Player -> IO Double)+defaultIOIStore = fromList [("defaultIOI", defaultIOI)]++defaultInterruptStore :: Data.Map.Map [Char] [IO ()]+defaultInterruptStore = fromList [("defaultInterrupt",[return()::IO()])]++defaultIOIListStore :: Data.Map.Map [Char] [Double]+defaultIOIListStore = fromList [("default",makeIOIList 0 [1.0])]++defaultMusicalEnvironment :: IO (MVar MusicalEnvironment)+defaultMusicalEnvironment = do+    tcs <- defaultTempoClockStore+    gs  <- defaultGeneratorStore+    let me = MusicalEnvironment+                    { environmentName = "defaultEnvironment"+                    , playerStore = defaultPlayerStore+                    , tempoClockStore = tcs+                    , iOIStore = defaultIOIStore+                    , actionStore = defaultActionStore+                    , interruptStore = defaultInterruptStore+                    , doubleGeneratorStore = gs+                    , iOIListStore = defaultIOIListStore+                    }+    newMVar me++
+ Sound/Conductive/Generator.hs view
@@ -0,0 +1,97 @@+------------------------------------------------------------------------------++-- Generator.hs+-- created: Fri Oct  1 23:20:44 JST 2010++------------------------------------------------------------------------------++-- | This is a module for creating and manipulating mutable generators. Generators contain a source finite list and a counter. Items are retrieved from the list one at a time, and the list loops when the last item has been given.++module Sound.Conductive.Generator where++import Control.Concurrent.MVar+import Data.IORef+import Data.Map+import Data.Maybe+import Sound.Conductive.ConductiveBaseData+++-- | creates a new Generator from the given source list.++newGenerator :: [a] -> IO (Generator a)+newGenerator source = do+    c <- newCounter+    g <- newMVar source+    l <- newIORef $ length source+    return $ Generator { generatorSource = g+                       , sourceLength = l+                       , generatorCounter = c+                       }++-- | swaps the source of a Generator++swapGenerator :: Generator a -> [a] -> IO [a]+swapGenerator oldGenerator newSource = do+    writeIORef ( sourceLength oldGenerator) $ length newSource+    swapMVar ( generatorSource oldGenerator) newSource++newCounter :: IO (IORef Int)+newCounter = newIORef (-1)++-- | returns the current value of a counter in a Generator++getCount :: Generator a -> IO Int+getCount generator = do+    c <- readIORef $ generatorCounter generator+    return $ c + 1++-- | returns the source of a Generator++getGeneratorSource :: Generator a -> IO [a]+getGeneratorSource generator = readMVar $ generatorSource generator++-- | resets the counter of a Generator++resetCounter :: Generator a -> IO ()+resetCounter generator = writeIORef (generatorCounter generator) (-1)++-- | returns the next item from a Generator++next :: Generator a -> IO a+next generator = nextWithOffset 0 generator++-- | adds the first argument to the counter value of a Generator and returns the corresponding item from the source++nextWithOffset :: Int -> Generator a -> IO a+nextWithOffset offset generator = do+    lastCount <- readIORef $ generatorCounter generator+    let newCount = lastCount + 1+    writeIORef (generatorCounter generator) newCount+    g <- getGeneratorSource generator+    l <- readIORef $ sourceLength generator+    let next' (l,xs) n = xs !! (mod n l)+    return $ g !! (mod (newCount + offset) l)++-- | given a list of Generators, returns a list containing the next item from all of them++nexts :: [Generator b] -> IO [b]+nexts generators = mapM next generators++-- | runs a pure function on the next item from a Generator++withNext :: Generator a -> (a -> b) -> IO b+withNext generator function = fmap function $ next generator++-- | creates a Map for storing Generators in++newGeneratorStore+  :: (Ord t) => (t, [a]) -> IO (Data.Map.Map t (Generator a))+newGeneratorStore (k,s) = do+    g <- newGenerator s+    return $ fromList [(k,g)]++-- | the defaultGeneratorStore used by the defaultMusicalEnvironment++defaultGeneratorStore+  :: IO (Data.Map.Map [Char] (Generator Double))+defaultGeneratorStore = newGeneratorStore ("default",[1.0])
+ Sound/Conductive/IOI.hs view
@@ -0,0 +1,61 @@+------------------------------------------------------------------------------++-- IOI.hs+-- created: Fri Oct  1 23:21:25 JST 2010++------------------------------------------------------------------------------++-- | This module contains functions related to IOI functions and IOI lists.++module Sound.Conductive.IOI where++import Control.Concurrent.MVar+import Data.List+import Data.List.Utils+import Data.Maybe+import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.MusicalEnvironment+import Sound.Conductive.MusicalTime+import Sound.Conductive.Player++-- | Creates an infinite length list from a start time and a finite list of relative time deltas++makeIOIList :: (Num a) => a -> [a] -> [a]+makeIOIList start source = deltasToAbsolutes start $ cycle source++-- | An IOI function which gets an IOI from an IOI list++-- The problem in this function is the error that accumulates from using doubles;+-- the use of minDiff below solves this problem, but it's an ugly hack, I feel.++iOIFromList+  :: MVar MusicalEnvironment -> Player -> String -> IO Double+iOIFromList e p m = let+    minDiff = 0.125+    start = playerStartingBeat p+    b = playerBeat p+    nextBeat pb bs = find (> (pb-start)) bs+    beatDiff opb pb bs = (fromJust $ nextBeat pb bs) - (opb - start)+    in do   il <- getIOIList e m+            let thisBeatDiff = beatDiff b b $ il+            if (thisBeatDiff < minDiff)+                then do let nb = sum [minDiff,thisBeatDiff,b]+                        let newBeatDiff = (beatDiff b nb il)+                        return newBeatDiff+                else return thisBeatDiff++-- | Creates an IOI list, adds it to the environment, and adds a lookup function for it to the MusicalEnvironment.++newIOIFunctionAndIOIList+  :: MVar MusicalEnvironment+     -> String+     -> Double+     -> [Double]+     -> IO MusicalEnvironment+newIOIFunctionAndIOIList env name startingBeat deltas = let+    newFunc e p = iOIFromList e p name+    newIOIList = makeIOIList startingBeat deltas+    in do addIOIList env (name,newIOIList)+          addIOI env (name,newFunc)++
+ Sound/Conductive/MVarUtils.hs view
@@ -0,0 +1,38 @@+------------------------------------------------------------------------------++-- MVarUtils.hs+-- created: Mon May 10 15:11:12 JST 2010++------------------------------------------------------------------------------++-- | These functions were found to be useful for dealing with MVars. For more on MVars, see <http://www.haskell.org/ghc/docs/6.12.2/html/libraries/base-4.2.0.1/Control-Concurrent-MVar.html>.++module Sound.Conductive.MVarUtils where++import Control.Concurrent.MVar++-- | Applies a pure function to the value stored in an MVar.++wm :: MVar a -> (a -> a1) -> IO a1+wm mvar func = do+    val <- readMVar mvar+    return $ func val++-- | Applies an IO function to the value stored in an MVar.++wIOm :: MVar a -> (a -> IO b) -> IO b+wIOm mvar func = do+    val <- readMVar mvar+    func val++-- | Changes the value stored in an MVar based on a pure function.++wcm :: MVar a -> (a -> a) -> IO a+wcm mvar func = do+    val <- readMVar mvar+    swapMVar mvar $ func val++-- | An alias for the wcm function.++withChangeToMVar :: MVar a -> (a -> a) -> IO a+withChangeToMVar mvar func = wcm mvar func
+ Sound/Conductive/MusicalEnvironment.hs view
@@ -0,0 +1,487 @@+------------------------------------------------------------------------------++-- MusicalEnvironment.hs+-- created: Fri Oct  1 23:21:13 JST 2010++------------------------------------------------------------------------------++module Sound.Conductive.MusicalEnvironment (  actions+                                            , addAction+                                            , addDoubleGenerator+                                            , addIOI+                                            , addIOIList+                                            , addInterrupt+                                            , addNewGenerator+                                            , addPlayer+                                            , addTempoClock+                                            , changeActions+                                            , changeDoubleGenerators+                                            , changeEnvironment+                                            , changeIOILists+                                            , changeIOIs+                                            , changeInterrupts+                                            , changePlayers+                                            , changeTempoClocks+                                            , deleteAction+                                            , deleteDoubleGenerator+                                            , deleteIOI+                                            , deleteIOIList+                                            , deleteInterrupt+                                            , deletePlayer+                                            , deleteTempoClock+                                            , doubleGenerators+                                            , eChangeTempo+                                            , eChangeTimeSignature+                                            , eCurrentTempo+                                            , eCurrentTimeSignature+                                            , eElapsedTime+                                            , getAction+                                            , getCurrentTime+                                            , getDoubleGenerator+                                            , getIOI+                                            , getIOIList+                                            , getInterrupt+                                            , getPlayer+                                            , getTempoClock+                                            , iOIs+                                            , iOILists+                                            , interrupts+                                            , players+                                            , showCurrentTime+                                            , tempoClocks+                                            , withAction+                                            , withDoubleGenerator+                                            , withEnvironment+                                            , withIOI+                                            , withIOIList+                                            , withInterrupt+                                            , withPlayer+                                            , withTempoClock+                                            ) where++import Control.Concurrent.MVar+import Data.Map +import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.Generator+import Sound.Conductive.MusicalTime+import Sound.Conductive.MVarUtils+++environmentStoreKeys+  :: MVar a -> (a -> Data.Map.Map k a1) -> IO [k]+environmentStoreKeys e sRecord = wm e $ (\x -> keys $ sRecord x)++-- | allows a pure function to be run on a MusicalEnvironment stored in an MVar++withEnvironment :: MVar a -> (a -> a1) -> IO a1+withEnvironment e func = wm e func++-- | used to update a MusicalEnvironment stored in an MVar++changeEnvironment :: MVar a -> (a -> a) -> IO a+changeEnvironment e func = wcm e func++withStore :: (t -> a) -> (a -> b) -> t -> b+withStore store func e = func $ store e ++-- | allows a pure function to be run on a store (first argument) in a MusicalEnvironment in an MVar++withMEStore :: (a -> a1) -> (a1 -> b) -> MVar a -> IO b+withMEStore store func e = withEnvironment e $ withStore store func++getItem+  :: (Ord k) => (a -> Data.Map.Map k a1) -> k -> MVar a -> IO a1+getItem store item e = withMEStore store (\x -> x ! item) e++------------------------------------------------------------------------------+-- boilerplate+-- functions to retrieve an item from a MusicalEnvironment in an MVar++-- | returns a Player from a MusicalEnvironment in an MVar++getPlayer :: MVar MusicalEnvironment -> String -> IO Player+getPlayer e n = getItem playerStore n e++-- | returns a TempoClock from a MusicalEnvironment in an MVar++getTempoClock :: MVar MusicalEnvironment -> String -> IO TempoClock+getTempoClock e n = getItem tempoClockStore n e++-- | returns an IOI function from a MusicalEnvironment in an MVar++getIOI+  :: MVar MusicalEnvironment+     -> String+     -> IO (MVar MusicalEnvironment -> Player -> IO Double)+getIOI e n = getItem iOIStore n e++-- | returns an action function from a MusicalEnvironment in an MVar++getAction+  :: MVar MusicalEnvironment+     -> String+     -> IO (MVar MusicalEnvironment -> Player -> IO ())+getAction e n = getItem actionStore n e++-- | returns an interrupt function from a MusicalEnvironment in an MVar++getInterrupt :: MVar MusicalEnvironment -> String -> IO [IO ()]+getInterrupt e n = getItem interruptStore n e++-- | returns a double Generator from a MusicalEnvironment in an MVar++getDoubleGenerator+  :: MVar MusicalEnvironment -> String -> IO (Generator Double)+getDoubleGenerator e n = getItem doubleGeneratorStore n e++-- | returns an IOI list from a MusicalEnvironment in an MVar++getIOIList :: MVar MusicalEnvironment -> String -> IO [Double]+getIOIList e n = getItem iOIListStore n e++------------------------------------------------------------------------------++withItem+  :: (Ord k) =>+     (a -> Data.Map.Map k a1) -> k -> (a1 -> IO b) -> MVar a -> IO b+withItem store item func e = getItem store item e >>= \i -> func i++------------------------------------------------------------------------------+-- irritating boilerplate+-- functions to run a function on an item from a MusicalEnvironment in an MVar++-- | runs a pure function on a stored Player++withPlayer+  :: (Player -> IO b) -> MVar MusicalEnvironment -> String -> IO b+withPlayer func e n = withItem playerStore n func e++-- | runs a pure function on a stored TempoClock++withTempoClock+  :: (TempoClock -> IO b)+     -> MVar MusicalEnvironment+     -> String+     -> IO b+withTempoClock func e n = withItem tempoClockStore n func e++-- | runs a pure function on a stored IOI function++withIOI+  :: ((MVar MusicalEnvironment -> Player -> IO Double) -> IO b)+     -> MVar MusicalEnvironment+     -> String+     -> IO b+withIOI func e n = withItem iOIStore n func e++-- | runs a pure function on a stored action function++withAction+  :: ((MVar MusicalEnvironment -> Player -> IO ()) -> IO b)+     -> MVar MusicalEnvironment+     -> String+     -> IO b+withAction func e n = withItem actionStore n func e++-- | runs a pure function on a stored interrupt function++withInterrupt+  :: ([IO ()] -> IO b) -> MVar MusicalEnvironment -> String -> IO b+withInterrupt func e n = withItem interruptStore n func e++-- | runs a pure function on a stored double Generator++withDoubleGenerator+  :: (Generator Double -> IO b)+     -> MVar MusicalEnvironment+     -> String+     -> IO b+withDoubleGenerator func e n = withItem doubleGeneratorStore n func e++-- | runs a pure function on a stored IOI List++withIOIList+  :: ([Double] -> IO b) -> MVar MusicalEnvironment -> String -> IO b+withIOIList func e n = withItem iOIListStore n func e++------------------------------------------------------------------------------++storeKeys :: (a -> Data.Map.Map k a1) -> MVar a -> IO [k]+storeKeys store e = withMEStore store keys e++------------------------------------------------------------------------------+-- annoying boilerplate+-- functions to get all items of a type from a MusicalEnvironment in an MVar++-- | returns a list of the names of all Players stored in a MusicalEnvironment++players :: MVar MusicalEnvironment -> IO [String]+players e = storeKeys playerStore e++-- | returns a list of the names of all TempoClocks stored in a MusicalEnvironment++tempoClocks :: MVar MusicalEnvironment -> IO [String]+tempoClocks e = storeKeys tempoClockStore e++-- | returns a list of the names of all IOI functions stored in a MusicalEnvironment++iOIs :: MVar MusicalEnvironment -> IO [String]+iOIs e = storeKeys iOIStore e++-- | returns a list of the names of all action functions stored in a MusicalEnvironment++actions :: MVar MusicalEnvironment -> IO [String]+actions e = storeKeys actionStore e++-- | returns a list of the names of all interrupt functions stored in a MusicalEnvironment++interrupts :: MVar MusicalEnvironment -> IO [String]+interrupts e = storeKeys interruptStore e++-- | returns a list of the names of all double Generators stored in a MusicalEnvironment++doubleGenerators :: MVar MusicalEnvironment -> IO [String]+doubleGenerators e = storeKeys doubleGeneratorStore e++-- | returns a list of the names of all IOI lists stored in a MusicalEnvironment++iOILists :: MVar MusicalEnvironment -> IO [String]+iOILists e = storeKeys iOIListStore e++------------------------------------------------------------------------------+-- more annoying boilerplate+-- functions operating on the various stores in a MusicalEnvironment stored in an MVar++-- | runs a pure function on the Map in a MusicalEnvironment containing the Players++changePlayers+  :: (Data.Map.Map String Player -> Data.Map.Map String Player)+     -> MusicalEnvironment+     -> MusicalEnvironment+changePlayers func e = e { playerStore = func $ playerStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the TempoClocks++changeTempoClocks+  :: (Data.Map.Map String TempoClock+     -> Data.Map.Map String TempoClock)+     -> MusicalEnvironment+     -> MusicalEnvironment+changeTempoClocks func e = e { tempoClockStore = func $ tempoClockStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the IOI functions++changeIOIs+  :: (Data.Map.Map String (MVar MusicalEnvironment -> Player -> IO Double)+      -> Data.Map.Map String (MVar MusicalEnvironment -> Player -> IO Double))+     -> MusicalEnvironment+     -> MusicalEnvironment+changeIOIs func e = e { iOIStore = func $ iOIStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the action functions++changeActions+  :: (Data.Map.Map String (MVar MusicalEnvironment -> Player -> IO ())+      -> Data.Map.Map String (MVar MusicalEnvironment -> Player -> IO ()))+     -> MusicalEnvironment+     -> MusicalEnvironment+changeActions func e = e { actionStore = func $ actionStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the interrupt functions++changeInterrupts+  :: (Data.Map.Map String [IO ()] -> Data.Map.Map String [IO ()])+     -> MusicalEnvironment+     -> MusicalEnvironment+changeInterrupts func e = e { interruptStore = func $ interruptStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the double Generators++changeDoubleGenerators+  :: (Data.Map.Map String (Generator Double)+      -> Data.Map.Map String (Generator Double))+     -> MusicalEnvironment+     -> MusicalEnvironment+changeDoubleGenerators func e = e { doubleGeneratorStore = func $ doubleGeneratorStore e }++-- | runs a pure function on the Map in a MusicalEnvironment containing the IOI lists++changeIOILists+  :: (Data.Map.Map String [Double] -> Data.Map.Map String [Double])+     -> MusicalEnvironment+     -> MusicalEnvironment+changeIOILists func e = e { iOIListStore = func $ iOIListStore e }++------------------------------------------------------------------------------+-- will the boilerplate never end?+-- functions to add an item to a store in a MusicalEnvironment in an MVar++-- | Add a Player to a MusicalEnvironment in an MVar++addPlayer+  :: MVar MusicalEnvironment+     -> (String, Player)+     -> IO MusicalEnvironment+addPlayer e (k,v) = changeEnvironment e $ changePlayers (insert k v)++-- | Add a TempoClock to a MusicalEnvironment in an MVar++addTempoClock+  :: MVar MusicalEnvironment+     -> (String, TempoClock)+     -> IO MusicalEnvironment+addTempoClock e (k,v) = changeEnvironment e $ changeTempoClocks (insert k v)++-- | Add an IOI function to a MusicalEnvironment in an MVar++addIOI+  :: MVar MusicalEnvironment+     -> (String, MVar MusicalEnvironment -> Player -> IO Double)+     -> IO MusicalEnvironment+addIOI e (k,v) = changeEnvironment e $ changeIOIs (insert k v)++-- | Add an action function to a MusicalEnvironment in an MVar++addAction+  :: MVar MusicalEnvironment+     -> (String, MVar MusicalEnvironment -> Player -> IO ())+     -> IO MusicalEnvironment+addAction e (k,v) = changeEnvironment e $ changeActions (insert k v)++-- | Add an interrupt function to a MusicalEnvironment in an MVar++addInterrupt+  :: MVar MusicalEnvironment+     -> (String, [IO ()])+     -> IO MusicalEnvironment+addInterrupt e (k,v) = changeEnvironment e $ changeInterrupts (insert k v)++-- | Add a double Generator to a MusicalEnvironment in an MVar++addDoubleGenerator+  :: MVar MusicalEnvironment+     -> (String, Generator Double)+     -> IO MusicalEnvironment+addDoubleGenerator e (k,v) = changeEnvironment e $ changeDoubleGenerators (insert k v)++-- | Add an IOI list to a MusicalEnvironment in an MVar++addIOIList+  :: MVar MusicalEnvironment+     -> (String, [Double])+     -> IO MusicalEnvironment+addIOIList e (k,v) = changeEnvironment e $ changeIOILists (insert k v)++-- | Add a double Generator to a MusicalEnvironment in an MVar++addNewGenerator+  :: MVar MusicalEnvironment+     -> (String, [Double])+     -> IO MusicalEnvironment+addNewGenerator e (n,x) = newGenerator x >>= \g -> addDoubleGenerator e (n,g)++------------------------------------------------------------------------------+-- functions to delete items from a MusicalEnvironment in an MVar++deleteItem+  :: (Ord k) =>+     ((Data.Map.Map k a -> Data.Map.Map k a) -> t -> t1) -> k -> t -> t1+deleteItem changeFunc k e = changeFunc (delete k) e+ +-- | Delete a Player to a MusicalEnvironment in an MVar++deletePlayer+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deletePlayer e k = changeEnvironment e $ deleteItem (changePlayers) k++-- | Delete a Tempo Clock from a MusicalEnvironment in an MVar++deleteTempoClock+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteTempoClock e k = changeEnvironment e $ deleteItem (changeTempoClocks) k++-- | Delete an IOI function from a MusicalEnvironment in an MVar++deleteIOI+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteIOI e k = changeEnvironment e $ deleteItem (changeIOIs) k++-- | Delete an action function from a MusicalEnvironment in an MVar++deleteAction+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteAction e k = changeEnvironment e $ deleteItem (changeActions) k++-- | Delete an interrupt function from a MusicalEnvironment in an MVar++deleteInterrupt+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteInterrupt e k = changeEnvironment e $ deleteItem (changeInterrupts) k++-- | Delete a double Generator from a MusicalEnvironment in an MVar++deleteDoubleGenerator+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteDoubleGenerator e k = changeEnvironment e $ deleteItem (changeDoubleGenerators) k++-- | Delete an IOI list from a MusicalEnvironment in an MVar++deleteIOIList+  :: MVar MusicalEnvironment -> String -> IO MusicalEnvironment+deleteIOIList e k = changeEnvironment e $ deleteItem (changeIOILists) k++------------------------------------------------------------------------------+-- not crazy about the prefixed "e" in these function names...++-- | convenience function for returning elapsed time from a stored TempoClock++eElapsedTime :: MVar MusicalEnvironment -> String -> IO Double+eElapsedTime e clock = withTempoClock elapsedTime e clock ++-- | convenience function for returning elapsed MusicalTime from a stored TempoClock++getCurrentTime+  :: MVar MusicalEnvironment -> String -> IO MusicalTime+getCurrentTime e clock = withTempoClock currentMusicalTime e clock ++-- | convenience function for returning elapsed MusicalTime as a string from a stored TempoClock++showCurrentTime :: MVar MusicalEnvironment -> String -> IO [Char]+showCurrentTime e clock = withTempoClock currentMusicalTime2 e clock ++-- | convenience function for returning the current Tempo from a stored TempoClock++eCurrentTempo :: MVar MusicalEnvironment -> String -> IO Double+eCurrentTempo e clock = do+    c <- getTempoClock e clock+    return $ currentTempo c++-- | convenience function for returning the current TimeSignature from a stored TempoClock++eCurrentTimeSignature+  :: MVar MusicalEnvironment -> String -> IO Int+eCurrentTimeSignature e clock = withTempoClock currentTimeSignature e clock ++-- | convenience function for changing the current Tempo of a stored TempoClock++eChangeTempo+  :: MVar MusicalEnvironment+     -> String+     -> Double+     -> IO MusicalEnvironment+eChangeTempo e clock nt = do+    tc <- getItem tempoClockStore clock e+    ntc <- changeTempo tc nt+    addTempoClock e (clock,ntc)++-- | convenience function for changing the current TimeSignature of a stored TempoClock++eChangeTimeSignature+  :: MVar MusicalEnvironment+     -> String+     -> Int+     -> IO MusicalEnvironment+eChangeTimeSignature e clock nts = do+    tc <- getItem tempoClockStore clock e+    ntc <- changeTimeSignature tc nts+    addTempoClock e (clock,ntc)
+ Sound/Conductive/MusicalTime.hs view
@@ -0,0 +1,207 @@+------------------------------------------------------------------------------++-- MusicalTime.hs+-- created: Fri Oct  1 23:20:55 JST 2010++------------------------------------------------------------------------------++-- | This is a module for functions concerned with time and its use in music.++module Sound.Conductive.MusicalTime where++import Sound.Conductive.ConductiveBaseData+import Data.List.Utils+import Data.Map+-- import System.Posix.Timer+import Data.Time.Clock.POSIX++-- | a function which displays a musical time with beats to three decimal places, as it's more readable that way...++displayMusicalTime :: MusicalTime -> [Char]+displayMusicalTime x = let +    b = beat x +    bVal = if ( b < 0.001)+              then "0000"+              else take 4 $ show $ truncate $ b * 1000+    bVal2 = if ((length $ bVal) < 4)+                then (replicate (4-length bVal) '0') ++ bVal+                else bVal+    bString = (head bVal2):'.':tail bVal2+    in (show $ measure x) ++ ('.':bString)++-- | a cast from POSIX time to a Double++currentTime :: IO Double+currentTime = do n <- getPOSIXTime+                 return $ realToFrac n++-- | returns the latest (current) tempo change (not tempo) of a clock++lastTempoChange :: TempoClock -> TempoChange+lastTempoChange t = head $ tempoChanges t++-- | returns the latest (may not be current) time signature change (not timesignature) of a clock++lastTimeSignatureChange :: TempoClock -> TimeSignature+lastTimeSignatureChange t = head $ timeSignatureChanges t++-- | returns the latest (current) tempo of a clock++currentTempo :: TempoClock -> Double+currentTempo t = newTempo $ lastTempoChange t++-- | returns the current (may not be latest) time signature change of a clock++currentTimeSignatureChange :: TempoClock -> IO TimeSignature+currentTimeSignatureChange t = +    let ts = timeSignatureChanges t+        currentTS tsc cb +            | (startingBeat $ head tsc) <= cb = head tsc+            | otherwise = currentTS (tail tsc) cb+    in do cb <- currentBeat t+          return $ currentTS ts cb++-- | returns the current time signature of a clock++currentTimeSignature :: TempoClock -> IO Int+currentTimeSignature t = do+    tsc <- currentTimeSignatureChange t+    return $ timeSignature tsc++-- | returns the time elapsed since the start time of a given clock++elapsedTime :: TempoClock -> IO Double+elapsedTime t = let+    s = startTime t+    in do n <- currentTime +          return $ n - s++-- | returns the time elapsed since the last tempo change++timeSinceTempoChange :: TempoClock -> IO Double+timeSinceTempoChange t = let+    tc = timeOfTempoChange $ lastTempoChange t+    in do n <- currentTime +          return $ n - tc++-- | converts a list of relative time deltas to a list of absolute times starting from the given time (first argument)++deltasToAbsolutes :: (Num a) => a -> [a] -> [a]+deltasToAbsolutes start input = scanl (+) start input++-- | converts a list of relative time deltas to a list of absolute times++absolutesToDeltas :: (Num a) => [a] -> [a]+absolutesToDeltas [] = []+absolutesToDeltas (x:[]) = []+absolutesToDeltas (x:xs) = ((head xs) - x):absolutesToDeltas xs++-- | converts a time delta (first argument) to a length specified in beats based on the given tempo (second argument)++deltaToBeats :: (Fractional a) => a -> a -> a+deltaToBeats delta tmp = (tmp/60) * delta++beatsToDelta' :: (Fractional a) => a -> a -> a+beatsToDelta' t b = (b/t) * 60++-- | converts a time delta specified in beats (second argument) to one in seconds based on the given clock (first argument)++beatsToDelta :: TempoClock -> Double -> Double+beatsToDelta tc b = beatsToDelta' (currentTempo tc) b++-- | when given a clock, returns the current beat++currentBeat :: TempoClock -> IO Double+currentBeat t = let+    lastChange = beatOfTempoChange $ lastTempoChange t+    in do elapsedT <- timeSinceTempoChange t+          return $ lastChange + (deltaToBeats elapsedT $ currentTempo t)++-- | an alias for currentBeat++elapsedBeats :: TempoClock -> IO Double+elapsedBeats = currentBeat++-- | when given a clock, returns the current measure++currentMeasure :: TempoClock -> IO Int+currentMeasure t = let+    in do b <- currentBeat t+          tsc <- currentTimeSignatureChange t+          let sm = startingMeasure tsc+          let sb = startingBeat tsc+          let ts = timeSignature tsc+          return $ sm + (truncate $ (b - sb)/(fromIntegral ts))++-- | when given a clock, returns the current MusicalTime++currentMusicalTime :: TempoClock -> IO MusicalTime+currentMusicalTime t = let+    in do m <- currentMeasure t+          tsc <- currentTimeSignatureChange t+          let ts = timeSignature tsc+          let sm = startingMeasure tsc+          let sb = startingBeat tsc+          b <- currentBeat t+          let b2 = (b - sb) - (fromIntegral ((m - sm)*ts))+          return MusicalTime { measure = m, beat = b2 }++-- | shows the elapsed time in terms of a MusicalTime++elapsedMusicalTime :: TempoClock -> IO MusicalTime+elapsedMusicalTime = currentMusicalTime++-- | returns the time as a more human-readable string version of MusicalTime++currentMusicalTime2 :: TempoClock -> IO [Char]+currentMusicalTime2 t = do+    mt <- currentMusicalTime t+    return $ displayMusicalTime mt++-- | given a TempoClock and a new tempo, adds a TempoChange to it and returns a new clock++changeTempo :: TempoClock -> Double -> IO TempoClock+changeTempo t new = do+    b <- currentBeat t+    n <- currentTime+    let ch = TempoChange { newTempo = new+                         , beatOfTempoChange = b+                         , timeOfTempoChange = n+                         }+    return $ t { tempoChanges = ch:(tempoChanges t) }++-- | given a TempoClock and a new time signature, adds a TimeSignatureChange and returns a new TempoClock. Changing the time signature takes effect in the next measure after the current one.++changeTimeSignature :: TempoClock -> Int -> IO TempoClock+changeTimeSignature t new = let+    tscs = timeSignatureChanges t+    in do tsc <- currentTimeSignatureChange t+          let sm = startingMeasure tsc+          let sb = startingBeat tsc+          cm <- currentMeasure t+          let nextMeasure = cm + 1+          let beatsSinceChange = (timeSignature tsc) * (nextMeasure - sm)+          let nsb = sb + (fromIntegral beatsSinceChange)+          let newTsc = TimeSignature { startingMeasure = nextMeasure+                                     , startingBeat = nsb+                                     , timeSignature = new+                                     }+          return $ t { timeSignatureChanges = newTsc:tscs }++-- | converts a string with the time, written as "measure.beat.decimalFractionOfABeat", to a MusicalTime. +--+-- For example, "2.2.5" converts to MusicalTime { measure = 2, beat = 2.5 }.++timeStringToMusicalTime :: [Char] -> MusicalTime+timeStringToMusicalTime t = let+    ts = break ((==) '.') t+    m = read $ fst ts+    b = read $ tail $ snd ts+    in MusicalTime { measure = m, beat = b }++-- | a cast from MusicalTime to beats++musicalTimeToBeats :: TempoClock -> MusicalTime -> Double+musicalTimeToBeats clock t = let+    ts = timeSignature $ head $ timeSignatureChanges clock+    in (beat t) + (fromIntegral $ (measure t) * ts)
+ Sound/Conductive/Player.hs view
@@ -0,0 +1,338 @@+------------------------------------------------------------------------------++-- Player.hs+-- created: Fri Oct  1 23:21:08 JST 2010++------------------------------------------------------------------------------++-- | This is a collection of functions which are useful for dealing with Players. The Player data type is in the MusicalEnvironment module. ++module Sound.Conductive.Player (  addNewPlayer+                                , displayPlayer+                                , modifyPlayer+                                , newPlayer+                                , newPlayerStore+                                , pause+                                , play+                                , playAt+                                , playAtTimeString+                                , reset+                                , sleep+                                , stop+                                , swapActions+                                , swapBeat+                                , swapClock+                                , swapCounter+                                , swapIOI+                                , swapInterrupt+                                , swapName+                                , swapPauseTime+                                , swapStatus+                                )where++import Control.Concurrent+import Data.Map +import Data.Maybe+import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.Generator+import Sound.Conductive.MusicalEnvironment+import Sound.Conductive.MusicalTime++-- | Displays information about a single player.++displayPlayer :: MVar MusicalEnvironment -> String -> IO ()+displayPlayer env player = do+    p <- getPlayer env player+    let  pString = concat [  playerName p+                          , "  "+                          , show $ playerStatus p+                          , "  "+                          , "a: "+                          , playerAction p+                          , "  "+                          , "IOI: "+                          , playerIOI p+                          ]+    putStrLn pString ++-- | Creates a thread delay specified in seconds.++sleep :: (RealFrac a) => a -> IO ()+sleep x = threadDelay $ truncate $ x * 1000000++-- | Creates a new player.++newPlayer+  :: String -- ^ the name of the player+    -> String -- ^ the clock it should follow+    -> String -- ^ the name of the IOI function to use+    -> String -- ^ the name of the action to use+    -> Double -- ^ the beat to start on when played+    -> Player+newPlayer name t deltaf actionf beat =+    Player { playerName = name+           --, playerStatus = "not playing"+           , playerStatus = Stopped+           , playerIOI = deltaf+           , playerCounter = 0+           , playerClock = t+           , playerAction = actionf+           , playerInterrupt = "defaultInterrupt"+           , playerStartingBeat = beat+           , playerBeat = beat+           , playerPauseTime = 0+           }++-- | Used to change a player stored in a MusicalEnvironment.++modifyPlayer+  :: MVar MusicalEnvironment+     -> String+     -> (Player -> Player)+     -> IO MusicalEnvironment+modifyPlayer e k func = do+    p <- getPlayer e k+    addPlayer e (k,func p)++------------------------------------------------------------------------------+-- the boilerplate for records is annoying. Is there no cleaner way?++-- functions for updating one record of a player++-- | Change the name of a player from old (second argument) to new (third argument).++swapName+  :: MVar MusicalEnvironment+     -> String+     -> String+     -> IO MusicalEnvironment+swapName e k new = modifyPlayer e k $ (\x -> x { playerName = new })++-- | Change the status of a player.++swapStatus+  :: MVar MusicalEnvironment+     -> String+     -> PlayerStatus+     -> IO MusicalEnvironment+swapStatus e k new = modifyPlayer e k $ (\x -> x { playerStatus = new })++-- | Change the IOI function of a player from old (second argument) to new (third argument).++swapIOI+  :: MVar MusicalEnvironment+     -> String+     -> String+     -> IO MusicalEnvironment+swapIOI e k new = modifyPlayer e k $ (\x -> x { playerIOI = new })++-- | Change the counter value of a player.++swapCounter+  :: MVar MusicalEnvironment+     -> String+     -> Integer+     -> IO MusicalEnvironment+swapCounter e k new = modifyPlayer e k $ (\x -> x { playerCounter = new })++-- | Change the clock a player is following from old (second argument) to new (third argument).++swapClock+  :: MVar MusicalEnvironment+     -> String+     -> String+     -> IO MusicalEnvironment+swapClock e k new = modifyPlayer e k $ (\x -> x { playerClock = new })++-- | Change the action function of a player from old (second argument) to new (third argument).++swapActions+  :: MVar MusicalEnvironment+     -> String+     -> String+     -> IO MusicalEnvironment+swapActions e k new = modifyPlayer e k $ (\x -> x { playerAction = new })++-- | Change the interrupt function of a player from old (second argument) to new (third argument).++swapInterrupt+  :: MVar MusicalEnvironment+     -> String+     -> String+     -> IO MusicalEnvironment+swapInterrupt e k new = modifyPlayer e k $ (\x -> x { playerInterrupt = new })++-- | Change the beat of the next event of a player.++swapBeat+  :: MVar MusicalEnvironment+     -> String+     -> Double+     -> IO MusicalEnvironment+swapBeat e k new = modifyPlayer e k $ (\x -> x { playerBeat = new })++-- | Change the time of the last pause of a player.++swapPauseTime+  :: MVar MusicalEnvironment+     -> String+     -> Double+     -> IO MusicalEnvironment+swapPauseTime e k new = modifyPlayer e k $ (\x -> x { playerPauseTime = new })++------------------------------------------------------------------------------++timeDiff :: TempoClock -> Double -> Double -> Double+timeDiff t b actualTime = let+    s = timeOfTempoChange $ head $ tempoChanges t+    beatDiff = b - (beatOfTempoChange $ head $ tempoChanges t)+    supposedTime = s + (beatsToDelta t beatDiff)+    in actualTime - supposedTime++correctJitter :: TempoClock -> Double -> Double -> Double -> Double+correctJitter t b delta actualTime = let+    s = timeOfTempoChange $ head $ tempoChanges t+    beatDiff = b - (beatOfTempoChange $ head $ tempoChanges t)+    supposedTime = s + (beatsToDelta t $ beatDiff + delta)+    in supposedTime - actualTime++-- | Plays a player, specified by the string, from a MusicalEnvironment. The start time is determined by the playerBeat field of the player.++play :: MVar MusicalEnvironment -> String -> IO ()+play e player = do+    p <- getPlayer e player+    if (playerStatus p == Playing)+        then putStrLn $ "Player "++player++" is already playing!"+        else (forkIO $ basicPlay e player $ playerStatus p) >> return ()++-- | Plays a player, specified by the string, from a MusicalEnvironment. The start time is given in beats as the first argument (the Double), from which the player automatically adjusts the playerBeat record.++playAt :: Double -> MVar MusicalEnvironment -> String -> IO ()+playAt beat e player = do+    swapBeat e player beat+    play e player++-- | Plays a player, specified by the string, from a MusicalEnvironment. The start time is given as a time string as the first argument (the Double), from which the player automatically adjusts the playerBeat record. Time strings are specified in the MusicalTime module.++playAtTimeString+  :: [Char] -> MVar MusicalEnvironment -> String -> IO ()+playAtTimeString ts e player = do+    p <- getPlayer e player+    clock <- getTempoClock e $ playerClock p+    let beat = musicalTimeToBeats clock $ timeStringToMusicalTime ts+    playAt beat e player++------------------------------------------------------------------------------+-- the basicPlay function, number of cases++basicPlay+  :: MVar MusicalEnvironment -> String -> PlayerStatus -> IO ()++basicPlay e player Stopped = do+    swapStatus e player Playing+    p <- getPlayer e player+    basicPlay e player $ playerStatus p++basicPlay e player Playing = do+    p <- getPlayer e player+    tc <- getTempoClock e $ playerClock p+    actualTime <- currentTime+    let diff = timeDiff tc (playerBeat p) actualTime+    if (diff < 0)+        then do sleep $ abs diff+                p1 <- getPlayer e player+                basicPlay e player $ playerStatus p1+        else do interrupt <- getInterrupt e $ playerInterrupt p+                sequence_ interrupt+                d <- getIOI e $ playerIOI p+                delta <- d e p+                a <- getAction e $ playerAction p+                forkIO $ a e p >> return ()+                tc2 <- getTempoClock e $ playerClock p+                actualTime <- currentTime+                swapBeat e player $ (playerBeat p) + delta+                swapCounter e player $ 1 + (playerCounter p)+                sleep $ correctJitter tc2 (playerBeat p) delta actualTime+                p1 <- getPlayer e player+                basicPlay e player $ playerStatus p1++basicPlay e player Pausing = do+    actualTime <- currentTime+    swapPauseTime e player actualTime+    swapStatus e player Paused+    putStrLn "The player has been paused."+    return ()++basicPlay e player Paused = do+    p <- getPlayer e player+    tc <- getTempoClock e $ playerClock p+    let tmp = head $ tempoChanges tc+    t <- currentTime+    let beatsSinceChange = deltaToBeats (t - (timeOfTempoChange tmp)) $ newTempo tmp+    let currentBeat = (beatOfTempoChange tmp) + beatsSinceChange+    swapBeat e player currentBeat+    swapStatus e player Playing+    p <- getPlayer e player+    basicPlay e player $ playerStatus p++basicPlay e player Stopping = do+    swapCounter e player 0+    swapBeat e player 0+    swapStatus e player Stopped+    putStrLn "The player has been stopped."+    return ()++basicPlay e player Resetting = do+    swapCounter e player 0+    swapBeat e player 0+    swapStatus e player Stopped+    putStrLn "The player has been reset."+    return ()++-- end of the basicPlay function+------------------------------------------------------------------------------++-- | Pauses the specified player.++pause :: MVar MusicalEnvironment -> String -> IO ()+pause e player = do+    p <- getPlayer e player+    if (playerStatus p) == Playing+        then do swapStatus e player Pausing >> return ()+        else do putStrLn "The player is not playing. Nothing has been done."++-- | Stops the specified player. Doing so resets both the playerBeat and playerCounter to 0.++stop :: MVar MusicalEnvironment -> String -> IO ()+stop e player = do+    p <- getPlayer e player+    if (playerStatus p) == Playing+        then do swapStatus e player Stopping >> return ()+        else do putStrLn "The player is not playing. Nothing has been done."++-- | Resets a paused player. Resetting means setting the playerBeat and playerCounter to 0.++reset :: MVar MusicalEnvironment -> String -> IO ()+reset e player = do+    p <- getPlayer e player+    if (playerStatus p) == Paused+        then do swapStatus e player Resetting+                basicPlay e player Resetting+        else do putStrLn "The player is not paused. Nothing has been done."++-- | Used for setting up the playerStore of a MusicalEnvironment. It automatically creates one player according to the arguments it is given.++newPlayerStore+  :: (String, (String, String, String, Double))+     -> Data.Map.Map String Player+newPlayerStore (k,(t, deltaf, actionf, beat)) =+    let p = newPlayer k t deltaf actionf beat+    in fromList [(k,p)]++-- | Creates a new player from the given arguments and adds it to the MusicalEnvironment.++addNewPlayer+  :: MVar MusicalEnvironment+     -> (String, (String, String, String, Double))+     -> IO MusicalEnvironment+addNewPlayer e (n,(c,d,a,b)) = addPlayer e (n,newPlayer n c d a b)
+ Sound/Conductive/Table.hs view
@@ -0,0 +1,75 @@+------------------------------------------------------------------------------++-- Table.hs+-- created: Sat Oct 16 02:03:17 JST 2010++------------------------------------------------------------------------------++module Sound.Conductive.Table ( asciiTable+                               ,displayPlayers +                               ) where++import Control.Concurrent.MVar+import Data.List+import Data.List.Utils+import Sound.Conductive.ConductiveBaseData+import Sound.Conductive.MusicalEnvironment++-- | This function creates a text table suitable for printing in ghci or the terminal.+--+-- For example:+--+-- asciiTable ["this","is","a","test"] "=" [["hi","hi","hi","hi"],["a","a","a","a"],["m","m","m","m"],["k","k","k","k"]] "   "+--+-- > this   is   a   test+-- > ====   ==   =   ====+-- > hi     a    m   k   +-- > hi     a    m   k   +-- > hi     a    m   k   +-- > hi     a    m   k   ++asciiTable :: [[Char]] -- ^ a list of column headers+            -> [Char] -- ^ a string containing the character used to separate the data in the columns from the header+            -> [[[Char]]] -- ^ a list of lists containing column data+            -> [Char] -- ^ a string containing the character used to pad between columns+            -> IO ()+asciiTable columnHeaders headerSeparator d spacer = let +    buildColumn (a,b) = a++b+    padStrings ss = let+        longestString ss = maximum $ map length ss+        l = longestString ss+        toPad s longest = longest - (length s)+        padder longest s = concat $ s:(replicate (toPad s longest) " ")+        in map (padder l) ss+    separator x = replicate (length x ) $ head headerSeparator+    tupleToList (x,y) = x:[y]+    headers = map tupleToList $ zip columnHeaders $ map separator columnHeaders+    preChart = transpose $ map padStrings $ map buildColumn $ zip headers d+    in sequence_ [ putStrLn "\n"+                 , mapM_ putStrLn $ map (join spacer) preChart+                 , putStrLn "\n"+                 ]+++playerChartData :: MVar MusicalEnvironment -> IO [[String]]+playerChartData e = do+    ps <- players e+    ss <- mapM (withPlayer (\x -> return $ playerStatus x) e) $ ps+    cs <- mapM (withPlayer (\x -> return $ playerClock x) e) $ ps+    as <- mapM (withPlayer (\x -> return $ playerAction x) e) $ ps+    is <- mapM (withPlayer (\x -> return $ playerIOI x) e) $ ps+    return [ps,map show ss,cs,as,is]++-- | Uses the asciiTablefunction to create a five-column table of information about players in a MusicalEnvironment. That information is the player name, its status, the clock it follows, and the action and IOI function it uses when played.++displayPlayers :: MVar MusicalEnvironment -> IO ()+displayPlayers e = let+    pc = "player"+    sc = "status"+    cc = "clock"+    ac = "action function"+    ic = "IOI function"+    columnHeaders = [pc,sc,cc,ac,ic]+    in do d <- playerChartData e+          asciiTable columnHeaders "=" d "   "+
+ conductive-base.cabal view
@@ -0,0 +1,63 @@+-- conductive-base.cabal auto-generated by cabal init. For additional+-- options, see+-- http://www.haskell.org/cabal/release/cabal-latest/doc/users-guide/authors.html#pkg-descr.+-- The name of the package.+Name:                conductive-base++-- The package version. See the Haskell package versioning policy+-- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for+-- standards guiding when and how versions should be incremented.+Version:             0.1++-- A short (one-line) description of the package.+Synopsis:            a library for livecoding and real-time musical applications++-- A longer description of the package.+Description:        Conductive is a set of Haskell libraries for livecoding and real-time music applications. The biggest immediate challenge in using Haskell for computer music was controlling the exact timing of events in a manner similar to that of the Task and Routine functions andPatterns library in SuperCollider. This library is intended to supply such facilities. This library wraps concurrent process manipulation in a way that makes controlling their timing more intuitive for musicians. At the same time, the library aims at being as concise as possible to lessen the burden on the user. Conductive-base is the core library for the Conductive set of libraries. This library includes the useful play, pause, stop, and reset functions, as well as corresponding data types, MusicalEnvironment, Player, and TempoClock.++-- URL for the project homepage or repository.+Homepage:            http://www.renickbell.net/doku.php?id=conductive-base++-- The license under which the package is released.+License:             GPL-3++-- The file containing the license text.+License-file:        LICENSE++-- The package author(s).+Author:              Renick Bell++-- An email address to which users can send suggestions, bug reports,+-- and patches.+Maintainer:          renick@gmail.com++Stability:           experimental++-- A copyright notice.+-- Copyright:           ++Category:            Sound, Music++Build-type:          Simple++-- Extra files to be distributed with the package, such as examples or+-- a README.+-- Extra-source-files:  ++-- Constraint on the version of Cabal needed to build this package.+Cabal-version:       >=1.4+++Library+  -- Modules exported by the library.+  Exposed-modules:     Sound.Conductive.MusicalEnvironment, Sound.Conductive.ConductiveBase, Sound.Conductive.ConductiveBaseData, Sound.Conductive.ConductiveDefaults, Sound.Conductive.MusicalTime, Sound.Conductive.Generator, Sound.Conductive.Player, Sound.Conductive.MVarUtils, Sound.Conductive.IOI, Sound.Conductive.Table+  +  -- Packages needed in order to build this package.+  Build-depends:       base < 5, containers >=0.3 && < 0.4, time >= 1.1 && < 1.3, MissingH >= 1.1 && < 1.2+  +  -- Modules not exported by this package.+  -- Other-modules:       +  +  -- Extra tools (e.g. alex, hsc2hs, ...) needed to build the source.+  -- Build-tools:         +