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#!/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.
PEXPECT LICENSE
This license is approved by the OSI and FSF as GPL-compatible.
http://opensource.org/licenses/isc-license.txt
Copyright (c) 2012, Noah Spurrier <noah@noah.org>
PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
'''
import pexpect
import string
import ANSI
import sys, os, time
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.child.before)
#self.term.process_list (self.child.after)
self.last_computer_move = ''
def read_until_cursor (self, r,c, e=0):
'''Eventually something like this should move into the screen class or
a subclass. Maybe a combination of pexpect and screen...
'''
fout = open ('log','a')
while self.term.cur_r != r or self.term.cur_c != c:
try:
k = self.child.read(1, 10)
except Exception, e:
print 'EXCEPTION, (r,c):(%d,%d)\n' %(self.term.cur_r, self.term.cur_c)
sys.stdout.flush()
self.term.process (k)
fout.write ('(r,c):(%d,%d)\n' %(self.term.cur_r, self.term.cur_c))
fout.flush()
if e:
sys.stdout.write (k)
sys.stdout.flush()
if self.term.cur_r == r and self.term.cur_c == c:
fout.close()
return 1
print 'DIDNT EVEN HIT.'
fout.close()
return 1
def expect_region (self):
'''This is another method that would be moved into the
screen class.
'''
pass
def do_scan (self):
fout = open ('log','a')
while 1:
c = self.child.read(1,10)
self.term.process (c)
fout.write ('(r,c):(%d,%d)\n' %(self.term.cur_r, self.term.cur_c))
fout.flush()
sys.stdout.write (c)
sys.stdout.flush()
def do_move (self, move, e = 0):
time.sleep(1)
self.read_until_cursor (19,60, e)
self.child.sendline (move)
def wait (self, color):
while 1:
r = self.term.get_region (14,50,14,60)[0]
r = r.strip()
if r == color:
return
time.sleep (1)
def parse_computer_move (self, s):
i = s.find ('is: ')
cm = s[i+3:i+9]
return cm
def get_computer_move (self, e = 0):
time.sleep(1)
self.read_until_cursor (19,60, e)
time.sleep(1)
r = self.term.get_region (17,50,17,62)[0]
cm = self.parse_computer_move (r)
return cm
def switch (self):
print 'switching'
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')
def LOG (s):
print s
sys.stdout.flush ()
fout = open ('moves.log', 'a')
fout.write (s + '\n')
fout.close()
print 'Starting...'
black = Chess()
white = Chess()
white.read_until_cursor (19,60,1)
white.switch()
done = 0
while not done:
white.wait ('Black')
move_white = white.get_computer_move(1)
LOG ( 'move white:'+ move_white )
black.do_move (move_white)
black.wait ('White')
move_black = black.get_computer_move()
LOG ( 'move black:'+ move_black )
white.do_move (move_black, 1)
g.quit()
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