implemented working externAgent wrapper

[progcomp10.git] / src / link / pexpect / examples / chess.py

diff --git a/src/link/pexpect/examples/chess.py b/src/link/pexpect/examples/chess.py
new file mode 100755 (executable)
index 0000000..8c32cf7
--- /dev/null
+++ b/src/link/pexpect/examples/chess.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+
+'''This demonstrates controlling a screen oriented application (curses).
+It starts two instances of gnuchess and then pits them against each other.
+'''
+
+import pexpect
+import string
+import ANSI
+
+REGEX_MOVE = '(?:[a-z]|\x1b\[C)(?:[0-9]|\x1b\[C)(?:[a-z]|\x1b\[C)(?:[0-9]|\x1b\[C)'
+REGEX_MOVE_PART = '(?:[0-9]|\x1b\[C)(?:[a-z]|\x1b\[C)(?:[0-9]|\x1b\[C)'
+
+class Chess:
+
+       def __init__(self, engine = "/usr/local/bin/gnuchess -a -h 1"):
+               self.child = pexpect.spawn (engine)
+                self.term = ANSI.ANSI ()
+             
+               self.child.expect ('Chess')
+               if self.child.after != 'Chess':
+                       raise IOError, 'incompatible chess program'
+                self.term.process_list (self.before)
+                self.term.process_list (self.after)
+               self.last_computer_move = ''
+        def read_until_cursor (self, r,c)
+            while 1:
+                self.child.read(1, 60)
+                self.term.process (c)
+                if self.term.cur_r == r and self.term.cur_c == c:
+                    return 1
+
+       def do_first_move (self, move):
+               self.child.expect ('Your move is')
+               self.child.sendline (move)
+                self.term.process_list (self.before)
+                self.term.process_list (self.after)
+               return move
+
+       def do_move (self, move):
+                read_until_cursor (19,60)
+               #self.child.expect ('\[19;60H')
+               self.child.sendline (move)
+               print 'do_move' move
+               return move
+
+       def get_first_computer_move (self):
+               self.child.expect ('My move is')
+               self.child.expect (REGEX_MOVE)
+#              print '', self.child.after
+               return self.child.after
+       
+       def get_computer_move (self):
+               print 'Here'
+               i = self.child.expect (['\[17;59H', '\[17;58H'])
+               print i
+               if i == 0:
+                       self.child.expect (REGEX_MOVE)
+                       if len(self.child.after) < 4:
+                               self.child.after = self.child.after + self.last_computer_move[3]
+               if i == 1:
+                       self.child.expect (REGEX_MOVE_PART)
+                       self.child.after = self.last_computer_move[0] + self.child.after
+               print '', self.child.after
+               self.last_computer_move = self.child.after
+               return self.child.after
+
+       def switch (self):
+               self.child.sendline ('switch')
+
+       def set_depth (self, depth):
+               self.child.sendline ('depth')
+               self.child.expect ('depth=')
+               self.child.sendline ('%d' % depth)
+
+       def quit(self):
+               self.child.sendline ('quit')
+import sys, os
+print 'Starting...'
+white = Chess()
+white.child.echo = 1
+white.child.expect ('Your move is')
+white.set_depth(2)
+white.switch()
+
+move_white = white.get_first_computer_move()
+print 'first move white:', move_white
+
+white.do_move ('e7e5')
+move_white = white.get_computer_move()
+print 'move white:', move_white
+white.do_move ('f8c5')
+move_white = white.get_computer_move()
+print 'move white:', move_white
+white.do_move ('b8a6')
+move_white = white.get_computer_move()
+print 'move white:', move_white
+
+sys.exit(1)
+
+
+
+black = Chess()
+white = Chess()
+white.child.expect ('Your move is')
+white.switch()
+
+move_white = white.get_first_computer_move()
+print 'first move white:', move_white
+
+black.do_first_move (move_white)
+move_black = black.get_first_computer_move()
+print 'first move black:', move_black
+
+white.do_move (move_black)
+
+done = 0
+while not done:
+    move_white = white.get_computer_move()
+    print 'move white:', move_white
+
+    black.do_move (move_white)
+    move_black = black.get_computer_move()
+    print 'move black:', move_black
+   
+    white.do_move (move_black)
+    print 'tail of loop'
+
+g.quit()
+
+