-
Notifications
You must be signed in to change notification settings - Fork 0
/
SearchAgent.py
66 lines (58 loc) · 2.43 KB
/
SearchAgent.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
# from Action import Action
from Cube import Cube
from Path import Path
from Frontier import Frontier
import pdb
from pymongo import MongoClient
# import copy
# TODO: created method search method with usage of _explore.
class SearchAgent(object):
def __init__(self):
self.initial_cube = Cube()
self.frontier = Frontier()
self.frontier.append(Path(self.initial_cube))
self.explored = {}
self.db = MongoClient()['rubic_cube']
def explore(self):
added = 0
iteration = 0
ignored = 0
while True:
path = self._path_to_explore()
stringified_path_cube = self._squash_cube_to_string_sequence(path.exploration_candidate.cube)
#if path leads to already explored space do not add it to frontier
if stringified_path_cube in self.explored:
ignored += 1
path.explore()
else:
new_path = path.explore()
if new_path.cube.get_missing_blocks() == 0:
return new_path
else:
added += 1
self.frontier.append(new_path)
self.explored[stringified_path_cube] = True # in fact we are only interested in existance of give key
if not path.should_be_dropped():
self.frontier.append(path)
if iteration % 1000 == 0:
self._log_state(iteration, added, ignored)
# print 'Iteration no: {0} frontier size: {1} explored states: {2}'.format(iteration, len(self.frontier.paths), len(self.explored))
# print 'Already added: {0}, ignored {1}'.format(added, ignored)
# self.frontier.print_out()
# print '*******************************'
iteration += 1
def _path_to_explore(self):
return self.frontier.pop()
def _squash_cube_to_string_sequence(self, cube):
return'-'.join(str(wall.state) for wall in cube.walls)
def _log_state(self, iteration, added, ignored):
log = {
'iteration': iteration,
'frontier_size': len(self.frontier.paths),
'explored_states': len(self.explored),
'added': added,
'ignored': ignored,
'frontier': self.frontier.state_log()
}
print 'inserting {0}'.format(log)
self.db.logs.insert_one(log)