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Editing: chess2.py
#!/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. ''' from __future__ import print_function from __future__ import absolute_import import pexpect from pexpect import ANSI import sys import 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 as 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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