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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.
'''
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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