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(Undo revision 42933 by Rmason (Talk). -- Rmason did this probably by mistake, so I'm reverting)
 
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== Othello (Reversi), by Mimoso. April 2011. ==
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  +
 
<haskell>
 
<haskell>
--Othello (Reversi). Manuel Hernández, April 2011.
 
 
import Random
 
import Random
 
import List
 
import List
   
 
data Element = O | X | E | L deriving (Eq,Show)
 
data Element = O | X | E | L deriving (Eq,Show)
data ArbolG = T Board [ArbolG] deriving Show
+
data TreeG = T Board [TreeG] deriving Show
 
type Board = [Element]
 
type Board = [Element]
data ArbolG1 = T1 (Element,Integer,Board,Int,Int) [ArbolG1] deriving Show
+
data TreeG1 = T1 (Element,Integer,Board,Int,Int) [TreeG1] deriving Show
--Bug? Hugs does not accept "vectors" from size > 5 to show
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data ArbolG3 = T3 (Element, -- Player
+
data TreeG3 = T3 (Element, -- Player
 
Integer, -- Mov
 
Integer, -- Mov
 
Board, -- Position
 
Board, -- Position
 
(Int,Int,Int) -- (num Xs, num Os, num Movs)
 
(Int,Int,Int) -- (num Xs, num Os, num Movs)
) [ArbolG3] deriving Show
+
) [TreeG3] deriving Show
   
data ArbolG4 = T4 (Element, -- Player
+
data TreeG4 = T4 (Element, -- Player
 
[Integer], -- Mov
 
[Integer], -- Mov
 
(Int,Int,Int) -- (num Xs, num Os, num Movs)
 
(Int,Int,Int) -- (num Xs, num Os, num Movs)
) [ArbolG4] deriving Show
+
) [TreeG4] deriving Show
   
 
data MvVal = MvVal {mov::Integer, xs :: Int, os :: Int} deriving Show
 
data MvVal = MvVal {mov::Integer, xs :: Int, os :: Int} deriving Show
  +
  +
--A board:
  +
  +
-- 11 12 13 14 15 16 17 18
  +
-- 21 22 23 24 25 26 27 28
  +
-- ... xy-10
  +
-- ... xy-1<-xy ->xy+1
  +
-- ... xy+10
  +
-- 81 82 83 84 85 86 87 88
   
 
lcoords = concat [[(x+1)..(x+8)]| x<-[10,20..80]]
 
lcoords = concat [[(x+1)..(x+8)]| x<-[10,20..80]]
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(concat
 
(concat
 
[findCoords x (coords pos)| x<-dirs n])))
 
[findCoords x (coords pos)| x<-dirs n])))
-- Para hallar los vecinos a una ficha X
+
-- To find the neighborhoods...
 
onlyNBos player pos = map (candidates . (neighbs (change player) pos))
 
onlyNBos player pos = map (candidates . (neighbs (change player) pos))
 
(findF player (coords pos))
 
(findF player (coords pos))
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| elem n [18] = [17,27,28]
 
| elem n [18] = [17,27,28]
   
numTTT::Int
+
numBoard::Int
numTTT= 64
+
numBoard= 64
   
 
part8 [] = []
 
part8 [] = []
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ls = [T1 (mMoveVirtual player k pos) [] | k <- (allNum player pos)]
 
ls = [T1 (mMoveVirtual player k pos) [] | k <- (allNum player pos)]
   
barrer player (T1 (p,m,pos,n1,n2) []) = allVBasic player m pos
+
sweep player (T1 (p,m,pos,n1,n2) []) = allVBasic player m pos
barrer player (T1 (p,m,pos,n1,n2) (c:cs)) =
+
sweep player (T1 (p,m,pos,n1,n2) (c:cs)) =
 
T1 (player,m,pos,count X pos,count O pos)
 
T1 (player,m,pos,count X pos,count O pos)
(map (barrer (change player)) (c:cs))
+
(map (sweep (change player)) (c:cs))
   
genTree player pos n = take n (iterate (barrer player) (T1 (X,0,pos,2,2) []))
+
genTree player pos n = take n (iterate (sweep player) (T1 (X,0,pos,2,2) []))
--Realmente sólo se utilizan jugador=X y posición=pos
 
   
 
mMoveVirtual player n pos =
 
mMoveVirtual player n pos =
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(allMoves player pos)))))) pos)
 
(allMoves player pos)))))) pos)
 
in (player, n, newpos, count X newpos, count O newpos)
 
in (player, n, newpos, count X newpos, count O newpos)
--Dato: (jugador,movimiento,posición,cuantosX,cuantosO)
+
--Dato: (player, movement, position, howmanyX, howmanyO)
   
 
sortby [] = []
 
sortby [] = []
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ls = (map transTree (a:bs))
 
ls = (map transTree (a:bs))
 
nm = length (allNum n pos)
 
nm = length (allNum n pos)
+
--Simple minimax:
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])
 
|nm==0 = ([mov],-70) -- -70 o 70?
 
|nm==0 = ([mov],-70) -- -70 o 70?
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])
|nm>0 = ([mov],-numberOfxs)
+
|nm>0 = ([mov],-numberOfxs) -- positive, it is "greedy"
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) (a:bs)) = (ms,n)
 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) (a:bs)) = (ms,n)
 
where
 
where
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minimax (transTree (last (genTree player pos n)))
 
minimax (transTree (last (genTree player pos n)))
   
minList ls = foldr (min) (1000) ls
 
 
minP (a1,b1) (a2,b2) = if b1<b2 then (a1,b1) else (a2,b2)
 
minP (a1,b1) (a2,b2) = if b1<b2 then (a1,b1) else (a2,b2)
 
minList' ls = foldr (minP) ([],1000) ls
 
minList' ls = foldr (minP) ([],1000) ls
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change O = X
 
change O = X
   
------Ahora ya juega muy bien :) (xs - os)
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-- The strength of playing depends on the eval functio as well as the search depth
   
 
calcMov :: Board -> IO()
 
calcMov :: Board -> IO()
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--Report winner..., missing
 
--Report winner..., missing
 
let
 
let
bm = head (tail (fst (bestMv X pos 3)))
+
bm = head (tail (fst (bestMv X pos 3))) -- Empty list..., missing
 
newpos1 = newPos X bm pos
 
newpos1 = newPos X bm pos
 
mMove X bm pos
 
mMove X bm pos
 
putStr $ show bm
 
putStr $ show bm
 
putStr $ "\n"
 
putStr $ "\n"
putStrLn $ "Fichas negras: " ++ (show (count X newpos1))
+
putStrLn $ "Black: " ++ (show (count X newpos1))
putStrLn $ "Fichas blancas: " ++ (show (count O newpos1))
+
putStrLn $ "White: " ++ (show (count O newpos1))
 
putStrLn $ (show (allNum O newpos1))++"\n"
 
putStrLn $ (show (allNum O newpos1))++"\n"
putStr "Tu movimiento: "
+
putStr "Your move: "
 
input <- getLine
 
input <- getLine
 
let square = (read input) :: Integer
 
let square = (read input) :: Integer
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newpos2 = newPos O square newpos1
 
newpos2 = newPos O square newpos1
 
mMove O square newpos1
 
mMove O square newpos1
putStrLn $ "Fichas negras: "++ (show (count X newpos2))
+
putStrLn $ "Black: "++ (show (count X newpos2))
putStrLn $ "Fichas blancas: "++ (show (count O newpos2))
+
putStrLn $ "White: "++ (show (count O newpos2))
 
calcMov (newPos O square newpos2)
 
calcMov (newPos O square newpos2)
   
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--Variants:
 
--Variants:
--a) Three players (or more)
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# Three players (or more)
--b) Scattering pieces over the board
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# Scattering pieces over the board
--c) Boards with obstacles (squares, or diamonds, for example)
+
# Boards with obstacles (squares, or diamonds, for example)
--d) Boards with distinct geometrical forms.
+
# Boards with distinct geometrical forms.
--e) Boards with distinct square geometry.
+
# Boards with distinct square geometry.
--f) Random static token
+
# Random static token
--g) Factor number betrayed
+
# Factor number betrayed
--h) ¿Dimensions?
+
# ¿Dimensions? I am thinking... 3D Othello.
--i) Special turns (like to put a token over an arbitrary square)
+
# Special turns (like to put a token over an arbitrary square)
  +
# Hexa "squares"
  +
  +
  +
I suggest to use the OpenGL library to make an interface.
  +
  +
For future editing: [http://www.wikipedia.org Wikipedia]
  +
[[Category:Programming]]
  +
[[Category:Games]]
  +
[[Category:Artificial Intelligence]]

Latest revision as of 12:27, 16 November 2011

[edit] Othello (Reversi), by Mimoso. April 2011.

import Random
import List
 
data Element = O | X | E | L deriving (Eq,Show)
data TreeG = T Board [TreeG] deriving Show
type Board = [Element]
data TreeG1 = T1 (Element,Integer,Board,Int,Int) [TreeG1] deriving Show
 
data TreeG3 = T3 (Element, -- Player
                   Integer, -- Mov
                   Board, -- Position
                   (Int,Int,Int) -- (num Xs, num Os, num Movs) 
                   ) [TreeG3] deriving Show
 
data TreeG4 = T4 (Element, -- Player
                   [Integer], -- Mov
                   (Int,Int,Int) -- (num Xs, num Os, num Movs) 
                   ) [TreeG4] deriving Show
 
data MvVal = MvVal {mov::Integer, xs :: Int, os :: Int} deriving Show
 
--A board:
 
-- 11 12 13 14 15 16 17 18
-- 21 22 23 24 25 26 27 28
--  ...       xy-10
--  ... xy-1<-xy ->xy+1
--  ...       xy+10
-- 81 82 83 84 85 86 87 88
 
lcoords = concat [[(x+1)..(x+8)]| x<-[10,20..80]]
 
coords pos = zipWith (\x y -> (x,y)) lcoords pos
 
expandx pos ((ini,X),(cand, O)) = 
        let (delta,av) = (cand-ini,cand+delta)
            es = findCoords av (coords pos)
            in if null es then [] else 
                 let h = snd (head es) in
                    case h of 
                     X -> []
                     E -> [(cand,O),(av,E)]
                     O ->  let rest = expandoX pos delta (av, O) in
                             if null rest then [] else (cand, O):rest 
 
expandoX pos delta (av, O) = 
             let av1 = av + delta
                 es = findCoords av1 (coords pos)
                  in if null es then [] else
                    let h = snd (head es) in 
                      case h of 
                        X -> [] 
                        E -> [(av, O),(av1, E)]
                        O -> let rest= expandoX pos delta (av1, O) in
                               if null rest then [] else (av, O):rest
 
expando pos ((ini,O),(cand, X)) = 
        let
           (delta,av) = (cand-ini,cand+delta)
           es = findCoords av (coords pos)
           in 
            if null es  then [] else 
                 let h = snd (head es) in
                    case h of 
                     O -> []
                     E -> [(cand, X),(av, E)]
                     X ->  let rest = expandxO pos delta (av, X) in
                             if null rest then [] else  (cand, X):rest 
 
expandxO pos delta (av, X) = let
                 av1 = av + delta
                 es = findCoords av1 (coords pos) in
                   if null es then [] else
                        let h = snd (head es) in 
                          case h of 
                           O -> [] 
                           E -> [(av, X),(av1, E)]
                           X -> let rest= expandxO pos delta (av1, X) in
                                    if null rest then [] else  (av, X):rest
 
allNum player pos = (nub . sort) 
              (map (fst) (validMoves player pos))
 
validMoves player pos = map last (allMoves player pos)
 
allMoves player pos = filter (/=[]) (movs player pos) 
 
movs player pos = if player==X then 
        map (expandx pos) (concat (onlyNBos X pos))
               else
        map (expando pos) (concat (onlyNBos O pos))
 
candidates (init, ls) = zip (repeat init) ls
 
findF e coors = (filter (\x -> (snd x)==e) coors) 
 
findCoords m coors = (filter (\x -> (fst x) == m) coors) 
 
neighbs e1 pos (n, e) = ((n, e),(only e1 
                                 (concat 
                                   [findCoords x (coords pos)| x<-dirs n])))
-- To find the neighborhoods...
onlyNBos player pos =  map (candidates . (neighbs (change player) pos)) 
                                     (findF player (coords pos))
 
only e ls = filter (\x -> (snd x)==e) ls
 
dirs n | elem n ([22..27]++[32..37]++[42..47]++[52..57]++[62..67]++[72..77])
                         =  map (+n) [-11,-10,-9,-1,1,9,10,11]
       | elem n [12..17] = map (+n) [-1,1,9,10,11]
       | elem n [82..87] = map (+n) [-1,1,-9,-10,-11]
       | elem n [21,31..71] = map (+n) [-10,-9,1,10,11]
       | elem n [28,38..78] = map (+n) [-11,-10,-1,9,10]
       | elem n [11] = [12,22,21]
       | elem n [88] = [87,77,78]
       | elem n [81] = [71,72,82]
       | elem n [18] = [17,27,28]
 
numBoard::Int
numBoard= 64
 
part8 [] = []
part8 (a:bs) = (take 8 (a:bs)):(part8 (drop 8 (a:bs)))
 
posIni::[Element]
posIni =  (take 24 (repeat E))++[E,E,E,X,O,E,E,E,
                                 E,E,E,O,X,E,E,E]++(take 24 (repeat E))
 
to a = snd (head (filter (\x -> a==fst x) (zip lcoords [1..64])))
 
maxV (MvVal n1 a1 b1) (MvVal n2 a2 b2) | a1<=a2 = MvVal n2 a2 b2
                                       | otherwise = MvVal n1 a1 b1
 
findMaxV ls = foldr (maxV) (MvVal 0 (-1000) 0) ls 
 
showB [] = ""
showB (a:bs) = (show a)++"\n"++(showB bs)
 
showBoard pos = putStr (" _ _ _ _ _ _ _ _ \n"
                ++[xchange x|x<-(showB (part8 pos))])
 
xchange x | x==',' = '|' 
          | x=='E' = '_'
          | otherwise = x
 
count player pos = length (filter (==player) pos)
 
validCoord player pos = nub (strip (validMoves player pos))
 
strip [] = []
strip ((n, x):ls) = fst (n, x):strip ls
------------------------------begin wrt X---------------------
allVBasic player g pos = 
           T1 (player,g,pos,count X pos,count O pos) ls
            where 
            ls = [T1 (mMoveVirtual player k pos) [] | k <- (allNum player pos)]
 
sweep player (T1 (p,m,pos,n1,n2) []) = allVBasic player m pos
sweep player (T1 (p,m,pos,n1,n2) (c:cs)) = 
           T1 (player,m,pos,count X pos,count O pos) 
                 (map (sweep (change player)) (c:cs))
 
genTree player pos n = take n (iterate (sweep player) (T1 (X,0,pos,2,2) []))
 
mMoveVirtual player n pos = 
            let newpos = (applyMove 
                    (apply player (nub (concat 
                      (filter (\x->fst (head x)==n) 
                        (map reverse 
                               (allMoves player pos)))))) pos)
             in (player, n, newpos, count X newpos, count O newpos)
--Dato: (player, movement, position, howmanyX, howmanyO)
 
sortby [] = []
sortby ((a1,b1):bs) = sortby [x | x<- bs, snd x < b1]++[(a1,b1)]++ 
                      sortby [x | x<- bs, snd x >= b1] 
newPos player n pos = 
            applyMove
                    (apply player (nub (concat 
                      (filter (\x->fst (head x)==n) 
                        (map reverse 
                               (allMoves player pos)))))) pos
mMvVirtual player n pos = 
            let newpos = (applyMove
                    (apply player (nub (concat 
                      (filter (\x->fst (head x)==n) 
                        (map reverse 
                               (allMoves player pos)))))) pos)
                          in MvVal n (count X newpos) (count O newpos)
 
transTree (T1 (n,mov,pos,xs,os) []) = T4 (n,[mov],(xs-os,os,nm)) []
                                     where
                                       nm = length (allNum n pos)
transTree (T1 (n,mov,pos,xs,os) (a:bs)) = T4 (n,[mov],(xs,os,nm)) ls 
                             where 
                               ls =  (map transTree (a:bs))
                               nm = length (allNum n pos)
--Simple minimax: 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])  
                        |nm==0 = ([mov],-70) -- -70 o 70?
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) [])
                        |nm>0 = ([mov],-numberOfxs) -- positive, it is "greedy" 
minimax (T4 (n,[mov],(numberOfxs,numberOfos,nm)) (a:bs)) = (ms,n)
           where
             ls = (negP (minList' (map minimax (a:bs))))
             (mvT,val) = ls 
             ms = (mov:mvT) -- ++[mov]
             n  = val
 
app ls (ms,t) = (ls++ms,t)
negP (a,b) = (a,-b)
 
bestMv player pos n = 
               minimax (transTree (last (genTree player pos n)))
 
minP (a1,b1) (a2,b2) = if b1<b2 then (a1,b1) else (a2,b2)
minList' ls = foldr (minP) ([],1000) ls
 
mMove player n pos = showBoard (applyMove
                  (apply player (nub (concat 
                      (filter (\x->fst (head x)==n) 
                        (map reverse 
                               (allMoves player pos)))))) pos)
---------------------------end wrt X-----------------------------
apply player [] = []
apply player ((n,e):ls) = (n,player):apply player ls 
 
applyMove [] pos = pos
applyMove ((n,player):ls) pos = applyMove ls (sustn player (to n) pos)     
 
sustn :: (Num a, Ord a) => b -> a -> [b] -> [b]
sustn a 1 (c:cs) = (a:cs) 
sustn a n (c:cs) | n>1 =  c:(sustn a (n-1) cs)
 
change X = O
change O = X
 
-- The strength of playing depends on the eval functio as well as the search depth
 
calcMov :: Board -> IO()
calcMov pos = do
        --Report winner..., missing
        let 
          bm = head (tail (fst (bestMv X pos 3))) -- Empty list..., missing
          newpos1 = newPos X bm pos
        mMove X bm  pos
        putStr $ show bm
        putStr $ "\n"
        putStrLn $ "Black: " ++ (show (count X newpos1))
        putStrLn $ "White: " ++ (show (count O newpos1))
        putStrLn $ (show (allNum O newpos1))++"\n"
        putStr "Your move: "
        input <- getLine
        let square = (read input) :: Integer
--        putStr (show square)
        let 
          newpos2 = newPos O square newpos1
        mMove O square newpos1  
        putStrLn $ "Black: "++ (show (count X newpos2))                
        putStrLn $ "White: "++ (show (count O newpos2))                
        calcMov (newPos O square newpos2)          
 
main = calcMov posIni

--Variants:

  1. Three players (or more)
  2. Scattering pieces over the board
  3. Boards with obstacles (squares, or diamonds, for example)
  4. Boards with distinct geometrical forms.
  5. Boards with distinct square geometry.
  6. Random static token
  7. Factor number betrayed
  8. ¿Dimensions? I am thinking... 3D Othello.
  9. Special turns (like to put a token over an arbitrary square)
  10. Hexa "squares"


I suggest to use the OpenGL library to make an interface.

For future editing: Wikipedia