ansi-terminal-game (empty) → 0.1.0.0
raw patch · 17 files changed
+1541/−0 lines, 17 filesdep +ansi-terminaldep +ansi-terminal-gamedep +arraysetup-changed
Dependencies added: ansi-terminal, ansi-terminal-game, array, base, bytestring, cereal, clock, hspec, linebreak, split, terminal-size, timers-tick
Files
- LICENSE +674/−0
- Setup.hs +2/−0
- ansi-terminal-game.cabal +87/−0
- changes.txt +5/−0
- example/Alone.hs +68/−0
- platform-dep/non-win/Terminal/Game/Input.hs +9/−0
- platform-dep/windows/Terminal/Game/Input.hs +22/−0
- src/Terminal/Game.hs +70/−0
- src/Terminal/Game/ANSI.hs +96/−0
- src/Terminal/Game/Animation.hs +53/−0
- src/Terminal/Game/Draw.hs +82/−0
- src/Terminal/Game/GameLoop.hs +183/−0
- src/Terminal/Game/Internal.hs +11/−0
- src/Terminal/Game/Plane.hs +164/−0
- src/Terminal/Game/Timer.hs +3/−0
- src/Terminal/Game/Utils.hs +11/−0
- test/Test.hs +1/−0
+ LICENSE view
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+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ ansi-terminal-game.cabal view
@@ -0,0 +1,87 @@+name: ansi-terminal-game+version: 0.1.0.0+synopsis: sdl-like functions for terminal applications, based on+ ansi-terminal+description: Library which aims to replicate standard 2d game+ functions (blit, ticks, timers, etc.) in a terminal+ setting.+ Aims to be cross compatible (based on "ansi-terminal",+ no unix-only dependencies), practical.+ This is a proof of concept release, used to implement+ @http://www.ariis.it/static/articles/animascii/page.html@+ . See example folder for some minimal programs.+homepage: none-yet+license: GPL-3+license-file: LICENSE+author: Francesco Ariis+maintainer: fa-ml@ariis.it+copyright: © 2017-2018 Francesco Ariis+category: Game+build-type: Simple+extra-source-files: changes.txt+cabal-version: >=1.10++flag example+ description: builds examples+ default: False++library+ exposed-modules: Terminal.Game,+ Terminal.Game.Internal+ other-modules: Terminal.Game.ANSI,+ Terminal.Game.Plane,+ Terminal.Game.Draw,+ Terminal.Game.Animation,+ Terminal.Game.Input,+ Terminal.Game.Timer,+ Terminal.Game.GameLoop+ Terminal.Game.Utils+ build-depends: base == 4.*,+ array,+ timers-tick,+ split,+ ansi-terminal,+ terminal-size,+ cereal,+ bytestring,+ clock,+ linebreak,+ split+ hs-source-dirs: src+ default-language: Haskell2010++ -- horrible horrible horrible hack to make unbuffered input+ -- work on Windows+ if os(windows)+ hs-source-dirs: platform-dep/windows+ if !os(windows)+ hs-source-dirs: platform-dep/non-win++test-suite test+ default-language: Haskell2010+ ghc-options: -Wall+ HS-Source-Dirs: test, src+ main-is: Test.hs+ build-depends: base==4.*,+ array,+ linebreak+ -- the above plus hspec+ , hspec+ type: exitcode-stdio-1.0++executable alone-in-a-room+ if flag(example)+ build-depends: base == 4.*,+ ansi-terminal-game+ else+ buildable: False++ hs-source-dirs: example+ main-is: Alone.hs+ default-language: Haskell2010+ -- With the -threaded option, only foreign calls with the unsafe+ -- attribute will block all other threads.+ -- TODO [breaking] [severe] [u:3] senza threaded non compila sin windows+ -- required on win before ghc 8.4?+ ghc-options: -threaded+
+ changes.txt view
@@ -0,0 +1,5 @@+# Revision history for ansi-terminal-game++## 0.1.0.0 -- YYYY-mm-dd++* First version. Released on an unsuspecting world.
+ example/Alone.hs view
@@ -0,0 +1,68 @@+module Main where++-- alone in a room: a scary game+-- vai a dormire+-- scary room+-- escape+-- blink exit, blink enemies+-- pit+-- randomly generated++import Terminal.Game++main :: IO ()+main = gameLoop "Alone in a room"+ (GameState (10, 10) Stop False)+ logicFun+ drawFun+ (\gs -> gsQuit gs)+ 5++-- STATE --++data GameState = GameState { gsCoord :: (Integer, Integer),+ gsMove :: Move,+ gsQuit :: Bool }++data Move = N | S | E | W | Stop+ deriving (Show, Eq)++logicFun :: GameState -> Maybe Char -> IO GameState+logicFun gs (Just 'q') = return $ gs { gsQuit = True }+logicFun (GameState cs m b) Nothing =+ return $ GameState (pos m cs) m b -- xxx duplicated code+logicFun (GameState cs m b) (Just c) =+ let m' = move m c+ in return $ GameState (pos m' cs) m' b++-- SCI movement+move :: Move -> Char -> Move+move N 'w' = Stop+move S 's' = Stop+move W 'a' = Stop+move E 'd' = Stop+move _ 'w' = N+move _ 's' = S+move _ 'a' = W+move _ 'd' = E+move m _ = m++-- todo add boundaries+pos :: Move -> (Integer, Integer) -> (Integer, Integer)+pos Stop cs = cs+pos N (r, c) = (r-1, c )+pos S (r, c) = (r+1, c )+pos E (r, c) = (r , c+1)+pos W (r, c) = (r , c-1)+++-- DRAW --++drawFun :: GameState -> Plane+drawFun (GameState (r, c) _ _) =+ blankPlane 80 25 &+ (1, 1) % box '_' 80 25 &+ (2, 2) % box ' ' 78 23 &+ (15, 20) % textBox "tap WASD to move, tap again to stop"+ 10 4 &+ (r, c) % cell '@'
+ platform-dep/non-win/Terminal/Game/Input.hs view
@@ -0,0 +1,9 @@+--------------------------------------------------------------------------------+-- Nonbuffering getChar+-- 2017 Francesco Ariis GPLv3 80cols+--------------------------------------------------------------------------------++module Terminal.Game.Input where++inputCharTerminal :: IO Char+inputCharTerminal = getChar
+ platform-dep/windows/Terminal/Game/Input.hs view
@@ -0,0 +1,22 @@+--------------------------------------------------------------------------------+-- Nonbuffering getChar+-- 2017 Francesco Ariis GPLv3 80cols+--------------------------------------------------------------------------------+{-# LANGUAGE ForeignFunctionInterface #-}++-- see .cabal conditionals for more info++module Terminal.Game.Input where++import qualified Foreign.C.Types as FT+import qualified Data.Char as C++inputCharTerminal :: IO Char+inputCharTerminal = getCharWindows++-- no idea but unsafe breaks it+getCharWindows :: IO Char+getCharWindows = fmap (C.chr . fromEnum) c_getch+foreign import ccall safe "conio.h getch"+ c_getch :: IO FT.CInt+
+ src/Terminal/Game.hs view
@@ -0,0 +1,70 @@+-------------------------------------------------------------------------------+-- Operate the Terminal machinery.+-- 2017 Francesco Ariis GPLv3+-------------------------------------------------------------------------------++-- Basic col-on-black ASCII terminal, operations.+-- Only module to be imported.++-- todo color [release]+-- todo resize screen corruption [grave]+-- add docs [release]++module Terminal.Game ( -- * Game loop+ gameLoop,+ -- * Plane+ Plane, -- types+ Coords, Width, Height,+ stringPlane, -- crea+ blankPlane, addVitrum,+ copyPlane, pastePlane, -- slice+ planeSize, paperPlane, -- info+ -- * Draw+ (%), (&), cell, -- draw+ box, textBox,+ -- * Animations+ Animation, Loop(..), -- types+ creaAni,+ tick, reset, -- operate+ -- xxx metti fetchframe in+ -- documentation+ -- e anche isexpired+ getFrames,+ encodeAni, -- serialise+ decodeAni,+ -- * Timers+ Timed, -- types+ ExpBehaviour(..),+ creaTimer, -- crea+ creaBoolTimer,+ fetchFrame, isExpired, -- operate+ -- * Utils+ screenSize+ )+ where++import Terminal.Game.GameLoop+import Terminal.Game.Plane+import Terminal.Game.Draw+-- xxx rivedi gli export di animation, encapsula tutto il possibile+import Terminal.Game.Animation+import Terminal.Game.Timer+import Terminal.Game.Utils++-- todo text deve essere gestito da una cosa smart, pensa a pp leijin++-- todo [post-first-release] setTitle hSupportsANSI bold? italics? intensity++-- todo geekosaur threaded shit bug++-- geekosaur f-a, a. heh. so the thoguht I had turned out to+-- be correct:+-- Control.Concurent.rtsSupportsBoundThreads (because+-- green threads can't be usefully bound)+-- x hiratara+-- [~hiratara@240f:7:4708:1:47a:b8c4:d18a:d063]+-- has left Ping timeout: 276 seconds [#haskell]+-- geekosaur so if that produces True, it's using the+-- threaded runtime; if False, you can say+-- something useful instead of hanging+
+ src/Terminal/Game/ANSI.hs view
@@ -0,0 +1,96 @@+-------------------------------------------------------------------------------+-- ANSI terminal display+-- (C) 2017 Francesco Ariis (GPL v3)+-------------------------------------------------------------------------------++-- Plane to ANSI terminal display++module Terminal.Game.ANSI where++import Terminal.Game.Draw+import Terminal.Game.Plane++import qualified System.Console.ANSI as CA+import qualified Data.List.Split as LS+import qualified Control.Monad as CM+import qualified Data.Array as A++-- xxx elmina 80 cols++-- th tw: terminal width and height+-- pn: new plane, po: old plane+-- fps sono gli fps attuali, puoi stamparli come preferisci (o non stamparli)+-- wo, ho: dimensions of the terminal. If they change, reinit double buffering+blitPlane :: Width -> Height -> Maybe Plane -> Plane -> Integer -> IO ()+blitPlane tw th mpo pn cFps =++ -- old plane+ let+ (pw, ph) = planeSize pn+ bp = blankPlane pw ph+ po = pastePlane (maybe bp id mpo) bp (1, 1)+ in++ -- new plane+ let pn' = pastePlane pn bp (1, 1)+ pn'' = pastePlane (textBox (show cFps) 100 100) pn' (1, 2)+ in++ -- reset formatting and print everything+ -- CA.setSGR [CA.Reset, CA.SetColor CA.Background CA.Dull CA.Black] >>+ CA.setSGR [CA.Reset] >>+ blitMap po pn' tw th+++-----------------+-- ANCILLARIES --+-----------------++-- plane + term w/h+blitMap :: Plane -> Plane -> Width -> Height -> IO ()+blitMap po pn tw th = CM.when (planeSize po /= planeSize pn)+ (error "blitMap: different plane sizes") >>+ CA.setCursorPosition (fi cr) (fi cc) >>+ blitToTerminal cc (orderedCells po) (orderedCells pn)+ where+ (pw, ph) = planeSize pn++ cr = div (th - ph) 2+ cc = div (tw - pw) 2++ fi = fromIntegral++orderedCells :: Plane -> [[Cell]]+orderedCells p = LS.chunksOf (fromIntegral w) cells+ where+ -- todo altra funzione invece che un map 2nd?+ cells = map snd $ assocsPlane p+ (w, _) = planeSize p+++-- ordered sequence of cells, both old and new, like they were a String to+-- print to screen+blitToTerminal :: Column -> [[Cell]] -> [[Cell]] -> IO ()+blitToTerminal rc ocs ncs = mapM_ blitLine oldNew+ where+ oldNew :: [[(Cell, Cell)]]+ oldNew = zipWith zip ocs ncs++ blitLine :: [(Cell, Cell)] -> IO ()+ blitLine ccs = CM.foldM blitChar 0 ccs >>+ CA.cursorDown 1 >>+ CA.setCursorColumn (fromIntegral rc)++ -- k is "spaces to skip"+ blitChar :: Int -> (Cell, Cell) -> IO Int+ blitChar k (clo, cln)+ | cln == clo = return (k+1)+ | otherwise = moveIf k >>= \k' ->+ putChar (cellChar cln) >>+ return k'++ moveIf :: Int -> IO Int+ moveIf k | k == 0 = return k+ | otherwise = CA.cursorForward k >>+ return 0+
+ src/Terminal/Game/Animation.hs view
@@ -0,0 +1,53 @@+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE DefaultSignatures #-}+{-# LANGUAGE StandaloneDeriving #-}+{-# LANGUAGE FlexibleInstances #-}+-------------------------------------------------------------------------------+-- Animation+-- 2018 Francesco Ariis GPLv3+-------------------------------------------------------------------------------++module Terminal.Game.Animation (module Terminal.Game.Animation,+ module T+ ) where++import Terminal.Game.Plane++import Control.Timer.Tick as T++import Data.Serialize+import GHC.Generics++import qualified Data.ByteString as BS+import qualified Data.Bifunctor as BF++-- todo missing: creaani, creaframe, fetchcurrframe, etc.++type Animation = T.Timed Plane++creaAni :: Loop -> [(Integer, Plane)] -> Animation+creaAni = creaTimedRes++-------------------+-- SERIALISATION --+-------------------++-- deriving instance Generic loc => Generic (Frame loc)+-- instance (Generic loc, Serialize loc) => Serialize (Frame loc Integer)++instance Serialize ExpBehaviour+instance Serialize Loop+instance Serialize Cell+instance Serialize Plane+instance Serialize Animation++encodeAni :: FilePath -> Animation -> IO ()+encodeAni fp fs = BS.writeFile fp (encode fs)++decodeAni :: FilePath -> IO (Either String Animation)+decodeAni fp = fmap decode (BS.readFile fp) >>=+ return . BF.bimap err id+ where+ err se = fp ++ ": " ++ se++
+ src/Terminal/Game/Draw.hs view
@@ -0,0 +1,82 @@+-------------------------------------------------------------------------------+-- Print convenience functions+-- 2017 Francesco Ariis GPLv3+-------------------------------------------------------------------------------++-- Drawing primitives. If not stated otherwise (textbox, etc.), ' ' are+-- assumed to be opaque++module Terminal.Game.Draw (module Terminal.Game.Draw,+ module DF) where++import Terminal.Game.Plane++import Text.LineBreak++import Data.Function as DF ( (&) )++-----------+-- TYPES --+-----------++type Draw = Plane -> Plane++(%) :: Coords -> Plane -> Draw+cds % p1 = \p2 -> pastePlane p1 p2 cds++ -- most of the drawing is done with % and &, e.g.+ --+ -- let d :: Plane+ -- d = blankPlane (100, 100) &+ -- (3, 4) % box '_' Yellow (3, 5) &+ -- (a, b) % butCell '@' Red+ --++-------------+-- DRAWING --+-------------++box :: Char -> Width -> Height -> Plane+box chr w h = seqCellsDim w h cells+ where+ cells = [((r, c), chr) | r <- [1..h], c <- [1..w]]++cell :: Char -> Plane+cell ch = box ch 1 1++-- opaque :: Plane -> Plane+-- opaque p = pastePlane p (box ' ' White w h) (1, 1)+-- where+-- (w, h) = pSize p++-- assumes ' ' are transparent+textBox :: String -> Width -> Height -> Plane+textBox cs w h = transparent+ where+ -- hypenathion+ hyp = Nothing -- Just english_GB+ bf = BreakFormat (fromIntegral w) 4 '-' hyp+ hcs = breakStringLn bf (take (fromIntegral $ w*h) cs)+ hl = fromIntegral $ length hcs++ f :: [String] -> [(Coords, Char)]+ f css = concatMap (uncurry rf) (zip [1..] css)+ where rf :: Integer -> String -> [(Coords, Char)]+ rf cr ln = zip (zip (repeat cr) [1..]) ln++ out = seqCellsDim w h (f hcs)+ transparent = addVitrum ' ' out+++-----------------+-- ANCILLARIES --+-----------------++seqCellsDim :: Width -> Height -> [(Coords, Char)] -> Plane+seqCellsDim w h cells = seqCells (blankPlane w h) cells++seqCells :: Plane -> [(Coords, Char)] -> Plane+seqCells p cells = updatePlane p (map f cells)+ where+ f (cds, chr) = (cds, creaCell chr)+
+ src/Terminal/Game/GameLoop.hs view
@@ -0,0 +1,183 @@+-------------------------------------------------------------------------------+-- Input/compute/output loop+-- 2017 Francesco Ariis GPLv3+-------------------------------------------------------------------------------++{-# OPTIONS_GHC -fno-warn-type-defaults #-}++module Terminal.Game.GameLoop where++import Terminal.Game.Plane+import Terminal.Game.Input+import Terminal.Game.ANSI+import Terminal.Game.Utils+import Control.Concurrent++import qualified System.IO as SI+import qualified Control.Monad as CM+import qualified System.Console.ANSI as CA+import qualified System.Console.Terminal.Size as TS+import qualified System.Clock as SC++-- todo elimina fps ora che li puoi fare on IO++-- | Entry point for the game.+gameLoop :: String -- ^title+ -> s -- ^initial state+ -- todo [release] [study] no full IO for s, but a+ -- jailed IO (provided by a datatype), both for I+ -- and for O+ -> (s -> Maybe Char -> IO s) -- ^logic function+ -> (s -> Plane) -- ^draw function+ -> (s -> Bool) -- ^quit? function+ -> Integer -- ^framerate (in fps)+ -> IO ()+gameLoop t s lf df qf fps =++ -- init+ SI.hSetBuffering SI.stdout SI.NoBuffering >>+ SI.hSetBuffering SI.stdin SI.NoBuffering >>+ SI.hSetEcho SI.stdin False >>++ -- title and initial setup/checks+ CA.setTitle t >>+ CA.hideCursor >>+ blackScreen >>++ -- mvars & fork+ newMVar 1 >>= \frameCounter ->+ newMVar Nothing >>= \inputChar ->+ forkIO (inputAction inputChar) >>+ forkIO (incTimer frameCounter fps) >>++ logicDraw inputChar frameCounter+ s lf df qf Nothing+ (initFPSCounter 20) (0,0) >>++ cleanAndExit+++----------------+-- CONCURRENT --+----------------++-- get action char+inputAction :: MVar (Maybe Char) -> IO ()+inputAction mc = -- vedi platform-dep/+ inputCharTerminal >>= \c ->+ swapMVar mc (Just c) >>+ inputAction mc++-- modifica il timer+incTimer :: MVar Integer -> Integer -> IO ()+incTimer mi fps = modifyMVar_ mi (return . succ) >>+ threadDelay delayAmount >>+ incTimer mi fps+ where+ delayAmount :: Int+ delayAmount = fromIntegral $ div (10^6) fps+++-- from http://www.loomsoft.net/resources/alltut/alltut_lesson5.htm+logicDraw :: MVar (Maybe Char) -> MVar Integer -> s -> -- input, ticks, state+ (s -> Maybe Char -> IO s) -> -- logic function+ (s -> Plane) -> -- draw function+ (s -> Bool) -> -- quit? function+ Maybe Plane -> -- last blitted screen+ FPSCounter -> -- FPS counter+ (Width, Height) -> -- Term Dimensions+ IO ()+logicDraw mc mi s lf df qf opln fc td =++ -- not to hog CPU cycles+ -- todo come mai 300 così alto? come influenza i timer?+ threadDelay 300 >>++ -- quit?+ if qf s+ then return ()+ else++ -- no tick from timer yet?+ readMVar mi >>= \k ->+ if k <= 0+ then logicDraw mc mi s lf df qf opln fc td+ else++ -- do logic+ readMVarNothing mc >>= \c ->+ modifyMVar mi (\a -> return (a-1, a-1)) >>= \k' ->+ lf s c >>= \s' ->++ -- not enough logic done? Skip blitting+ if k' > 0+ then logicDraw mc mi s' lf df qf opln fc td+ else++ -- clear screen if resolution change+ screenSize >>= \td'@(tw, th) ->+ let resc = td /= td' in+ CM.when resc blackScreen >>++ let opln' | resc = Nothing -- res changed? restart double buffering+ | otherwise = opln+ npln = df s'+ cFps = getCurrFPS fc in+ blitPlane tw th opln' npln cFps >>+ tickCounter fc >>= \fc' ->+ logicDraw mc mi s' lf df qf (Just npln) fc' td'+++-----------------+-- FPS COUNTER --+-----------------++-- poll fps every x frames, current fps, stored time, current fps+data FPSCounter = FPSCounter Integer Integer SC.TimeSpec Integer++-- poll utctime every x ticks+initFPSCounter :: Integer -> FPSCounter+initFPSCounter x = FPSCounter x 0 0 0++tickCounter :: FPSCounter -> IO FPSCounter+tickCounter (FPSCounter g e t1 cf)+ | g > e = return (FPSCounter g (e+1) t1 cf)+ | g == e = SC.getTime SC.Monotonic >>= \t2 ->+ let dtn = SC.toNanoSecs $ SC.diffTimeSpec t2 t1+ fr = fi dtn / fi (g+1)+ fps = round $ fi (10^9) / fr in+ --- xxx no div+ return (FPSCounter g 0 t2 fps)+ | otherwise = error "tickCounter: g < e"+ where+ fi = fromIntegral++getCurrFPS :: FPSCounter -> Integer+getCurrFPS (FPSCounter _ _ _ cFps) = cFps++-----------------+-- ANCILLARIES --+-----------------++cleanAndExit :: IO ()+cleanAndExit = CA.setSGR [CA.Reset] >>+ CA.clearScreen >>+ CA.setCursorPosition 0 0 >>+ CA.showCursor++readMVarNothing :: MVar (Maybe a) -> IO (Maybe a)+readMVarNothing mvar = readMVar mvar >>= \ma ->+ CM.unless (null ma)+ (() <$ swapMVar mvar Nothing) >>+ return ma++-- turn screen into black+blackScreen :: IO ()+blackScreen = CA.setCursorPosition 0 0 >>+ -- CA.setSGR [CA.Reset,+ -- CA.SetColor CA.Foreground CA.Dull CA.White,+ -- CA.SetColor CA.Background CA.Dull CA.Black] >>+ -- è dull black che voglio?+ screenSize >>= \(w, h) ->+ CM.replicateM_ (fromIntegral $ w*h) (putChar ' ')+
+ src/Terminal/Game/Internal.hs view
@@ -0,0 +1,11 @@+-------------------------------------------------------------------------------+-- Screen datatypes and functions+-- 2017 Francesco Ariis GPLv3+-------------------------------------------------------------------------------++module Terminal.Game.Internal (module All) where++-- You should not need this module (as now, only useful for+-- serializing instances).++import Terminal.Game.Plane as All ( Cell )
+ src/Terminal/Game/Plane.hs view
@@ -0,0 +1,164 @@+{-# LANGUAGE DeriveGeneric #-} + +------------------------------------------------------------------------------- +-- Screen datatypes and functions +-- 2017 Francesco Ariis GPLv3 +------------------------------------------------------------------------------- + +-- a canvas where to draw our stuff + +module Terminal.Game.Plane where + +import qualified GHC.Generics as G +import qualified Data.Array as A +import qualified Data.Char as C +import qualified Data.List as L +import qualified Data.List.Split as LS +import qualified Data.Tuple as T + + +---------------- +-- DATA TYPES -- +---------------- + +type Width = Integer +type Height = Integer +type Row = Integer +type Column = Integer +type Coords = (Row, Column) -- row, column, from TL (TL = 1, 1) + +-- can be an ASCIIChar or a special, transparent character +data Cell = CellChar Char + | Transparent + deriving (Show, Eq, Ord, G.Generic) + +-- A place where to blit stuff. Coordinates starts from top left +-- corner (1, 1) +newtype Plane = Plane { fromPlane :: (A.Array Coords Cell) } + deriving (Show, Eq, G.Generic) + +---------- +-- CREA -- +---------- + +creaCell :: Char -> Cell +creaCell ch = CellChar ch + +-- creates plane from a string, good to import ascii art/diagrams/etc. +-- Char indicates transparency, integer = pic width +stringPlane :: Maybe Char -> Integer -> String -> Plane +stringPlane mc w t = vitrous + where + lined = lines t + + h :: Integer + h = L.genericLength lined + + pad :: Integer -> String -> String + pad mw t = take (fromIntegral mw) (t ++ repeat ' ') + + padded :: [String] + padded = map (pad w) lined + + celled :: [Cell] + celled = map creaCell . concat $ padded + + plane :: Plane + plane = Plane $ A.listArray ((1,1), (h, w)) celled + + vitrous :: Plane + vitrous = case mc of + Just c -> addVitrum c plane + Nothing -> plane + + +-- creates an empty, opaque Plane (limits: TL, BR) +blankPlane :: Width -> Height -> Plane +blankPlane w h = Plane $ A.listArray ((1,1), (h, w)) (repeat $ creaCell ' ') + +-- add transparency to a plane, matching a given character +addVitrum :: Char -> Plane -> Plane +addVitrum tc p = mapPlane f p + where + f cl | cellChar cl == tc = Transparent + | otherwise = cl + + +----------- +-- SLICE -- +----------- + +-- copies a slice of the plane (bl, tr) +copyPlane :: Plane -> Coords -> Coords -> Plane +copyPlane p (r1, c1) (r2, c2) = + Plane $ A.listArray ((1, 1), (w', h')) (map snd section) + where + inside ((r, c), _) | r >= r1 && r <= r2 && + c >= c1 && c <= c2 = True + | otherwise = False + + (w, h) = planeSize p + + w' = min w c2 - max c1 1 + 1 + h' = min h r2 - max r1 1 + 1 + + section = filter inside (assocsPlane p) + +-- paste one plane over the other at a certain position (p1 gets over p2). +-- Remember that coordinates start from bottom left! +-- Maybe char = possible transparency +pastePlane :: Plane -> Plane -> Coords -> Plane +pastePlane p1 p2 (r, c) = updatePlane p2 filtered + where + cs = assocsPlane p1 + (w2, h2) = planeSize p2 + traslated = fmap (\((r1, c1), cl) -> ((r1 + r - 1, c1 + c -1), cl)) + cs + filtered = filter (\x -> inside x && solid x) traslated + + inside ((r1, c1), _) | r1 >= 1 && r1 <= h2 && + c1 >= 1 && c1 <= w2 = True + | otherwise = False + + solid (_, Transparent) = False + solid (_, otherwise) = True + + +------------- +-- INQUIRE -- +------------- + +planeSize :: Plane -> (Width, Height) +planeSize p = T.swap . snd $ A.bounds (fromPlane p) + +cellChar :: Cell -> Char +cellChar (CellChar ch) = ch +cellChar Transparent = ' ' + +assocsPlane :: Plane -> [(Coords, Cell)] +assocsPlane p = A.assocs (fromPlane p) + +-- an '\n' divided (and ended) String ready to be written on file +paperPlane :: Plane -> String +paperPlane p = unlines . LS.chunksOf w . + map c2c . A.elems $ fromPlane p + where + w :: Int + w = fromIntegral . fst . planeSize $ p + + c2c :: Cell -> Char + c2c Transparent = ' ' + c2c (CellChar c) = c + + +----------------- +-- ANCILLARIES -- +----------------- + +-- faux map +mapPlane :: (Cell -> Cell) -> Plane -> Plane +mapPlane f (Plane a) = Plane $ fmap f a + +-- Array.// +updatePlane :: Plane -> [(Coords, Cell)] -> Plane +updatePlane (Plane a) kcs = Plane $ a A.// kcs
+ src/Terminal/Game/Timer.hs view
@@ -0,0 +1,3 @@+module Terminal.Game.Timer (module T) where++import Control.Timer.Tick as T
+ src/Terminal/Game/Utils.hs view
@@ -0,0 +1,11 @@+module Terminal.Game.Utils where++import Terminal.Game.Plane++import qualified System.Console.Terminal.Size as TS++screenSize :: IO (Width, Height)+screenSize =+ TS.size >>= \ts ->+ let (TS.Window h w) = maybe (error "cannot get TERM size") id ts+ in return (w, h)
+ test/Test.hs view
@@ -0,0 +1,1 @@+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}