def fetch_match(request):
context = RequestContext(request)
matchid = request.GET['matchid']
movecnt = request.GET['movecnt']
switchflag = request.GET['switchflag']
match = Match.objects.get(id=matchid)
if(match == None):
data = "§§"
else:
lastmove = Move.objects.filter(match_id=match.id).order_by("count").last()
if(lastmove != None):
movesrc = Match.index_to_koord(lastmove.srcx, lastmove.srcy)
movedst = Match.index_to_koord(lastmove.dstx, lastmove.dsty)
if(int(movecnt) == match.count):
data = "§"
else:
data = html_board(match, int(switchflag), movesrc, movedst) + "§" + html_moves(match)
thread = Match.get_active_thread(match)
if(thread and not thread.candidate_srcx):
data += "§<p>thread found with matchid: " + str(thread.match.id) + "</p>"
elif(thread and thread.candidate_srcx):
data += "§<p>move candidate: "
data += Match.index_to_koord(thread.candidate_srcx, thread.candidate_srcy) + "-" + Match.index_to_koord(thread.candidate_dstx, thread.candidate_dsty)
data += "</p>"
else:
data += "§"
return HttpResponse(data)
def is_move_ok(match, srcx, srcy, dstx, dsty, piece):
DIRS = rules.DIRS
direction, stepx, stepy = rk_step(None, srcx, srcy, dstx, dsty)
if(direction == DIRS['undefined']):
return False
color = Match.color_of_piece(piece)
pin_dir = rules.pin_dir(match, srcx, srcy)
if(direction == DIRS['north'] or direction == DIRS['south']):
if(pin_dir != DIRS['north'] and pin_dir != DIRS['south'] and pin_dir != DIRS['undefined']):
return False
elif(direction == DIRS['east'] or direction == DIRS['west']):
if(pin_dir != DIRS['east'] and pin_dir != DIRS['west'] and pin_dir != DIRS['undefined']):
return False
x = srcx + stepx
y = srcy + stepy
while(x >= 0 and x <= 7 and y >= 0 and y <= 7):
field = match.readfield(x, y)
if(x == dstx and y == dsty):
if(Match.color_of_piece(field) == color):
return False
else:
return True
elif(field != Match.PIECES['blk']):
return False
x += stepx
y += stepy
return False
def do_move(request, matchid):
context = RequestContext(request)
if request.method == 'POST':
match = get_object_or_404(Match, pk=matchid)
movesrc = request.POST['move_src']
movedst = request.POST['move_dst']
prompiece = request.POST['prom_piece']
switch = request.POST['switch']
if(match.next_color_human()):
if(len(movesrc) > 0 and len(movedst) > 0 and len(prompiece) > 0):
srcx,srcy = Match.koord_to_index(movesrc)
dstx,dsty = Match.koord_to_index(movedst)
prom_piece = match.PIECES[prompiece]
flag, msg = rules.is_move_valid(match, srcx, srcy, dstx, dsty, prom_piece)
status = rules.game_status(match)
if(flag == True and status == Match.STATUS['open']):
move = match.do_move(srcx, srcy, dstx, dsty, prom_piece)
move.save()
match.save()
calc_move_for_immanuel(match)
fmtmsg = "<p class='ok'>" + rules.ERROR_MSGS[msg] + "</p>"
else:
fmtmsg = "<p class='error'>" + rules.ERROR_MSGS[msg] + "</p>"
else:
fmtmsg = "<p class='error'>Zug-Format ist ungültig.</p>"
else:
fmtmsg = "<p class='error'>Farbe ist nicht am Zug.</p>"
fmtboard = fill_fmtboard(match, int(switch))
moves = []
currmove = Move.objects.filter(match_id=match.id).order_by("count").last()
if(currmove != None):
if(currmove.count % 2 == 0):
limit = 22
else:
limit = 21
qmoves = Move.objects.filter(match_id=match.id).order_by("-count")[:limit]
for qmove in reversed(qmoves):
moves.append(qmove)
comments = Comment.objects.filter(match_id=match.id).order_by("created_at").reverse()[:3]
status = rules.game_status(match)
if(status != Match.STATUS['open']):
fmtmsg = "<p class='error'>" + helper.reverse_lookup(Match.STATUS, status) + "</p>"
if(int(switch) == 0):
rangeobj = range(8)
else:
rangeobj = range(7, -1, -1)
candidate = ""
return render(request, 'kate/match.html', { 'match': match, 'board': fmtboard, 'switch': switch, 'movesrc': movesrc, 'movedst': movedst, 'moves': moves, 'comments': comments, 'msg': fmtmsg, 'range': rangeobj, 'candidate': candidate } )
else:
return HttpResponseRedirect(reverse('kate:match', args=(matchid, switch)))
def prnt_moves(match):
count = 1
print("------------------------------------------------------")
for move in match.move_list[1:]:
print(str(count) + ": " +
Match.index_to_koord(move.srcx, move.srcy) + " " +
Match.index_to_koord(move.dstx, move.dsty) + " " +
helper.reverse_lookup(Match.PIECES, move.prom_piece))
count += 1
print("------------------------------------------------------")
def __init__(self, name, match):
threading.Thread.__init__(self)
self.name = name
self.match = copy.deepcopy(match)
self.candidate_srcx = None
self.candidate_srcy = None
self.candidate_dstx = None
self.candidate_dsty = None
self.candidate_prom_piece = None
Match.remove_outdated_threads(match)
Match.add_thread(self)
def is_move_ok(match, srcx, srcy, dstx, dsty, piece):
DIRS = rules.DIRS
color = Match.color_of_piece(piece)
opp_color = Match.REVERSED_COLORS[color]
direction = kg_dir(srcx, srcy, dstx, dsty)
if(direction == DIRS['sh-castling']):
return is_sh_castling_ok(match, srcx, srcy, dstx, dsty, piece)
if(direction == DIRS['lg-castling']):
return is_lg_castling_ok(match, srcx, srcy, dstx, dsty, piece)
if(direction == DIRS['undefined']):
return False
king = match.readfield(srcx, srcy)
captured = match.readfield(dstx, dsty)
match.writefield(srcx, srcy, Match.PIECES['blk'])
match.writefield(dstx, dsty, king)
attacked = rules.attacked(match, dstx, dsty, opp_color)
match.writefield(srcx, srcy, king)
match.writefield(dstx, dsty, captured)
if(attacked == True):
return False
field = match.readfield(dstx, dsty)
if(match.color_of_piece(field) == color):
return False
return True
def is_lg_castling_ok(match, srcx, srcy, dstx, dsty, piece):
color = Match.color_of_piece(piece)
opp_color = Match.REVERSED_COLORS[color]
for i in range(1, 3, 1):
fieldx = srcx - i
field = match.readfield(fieldx, srcy)
if(field != Match.PIECES['blk']):
return False
if(color == Match.COLORS['white']):
if(match.wKg_first_movecnt != 0 or match.wRk_a1_first_movecnt != 0):
return False
else:
if(match.bKg_first_movecnt != 0 or match.bRk_a8_first_movecnt != 0):
return False
king = match.readfield(srcx, srcy)
match.writefield(srcx, srcy, Match.PIECES['blk'])
for i in range(0, -3, -1):
castlingx = srcx + i
attacked = rules.attacked(match, castlingx, srcy, opp_color)
if(attacked == True):
match.writefield(srcx, srcy, king)
return False
match.writefield(srcx, srcy, king)
return True
def run(self):
print("Starting " + str(self.name))
move = Move.objects.filter(match_id=self.match.id).order_by("count").last()
if(move != None):
self.match.move_list.append(move)
if(self.match.level == Match.LEVEL['low']):
maxdepth = 1
elif(self.match.level == Match.LEVEL['medium']):
maxdepth = 2
elif(self.match.level == Match.LEVEL['high']):
maxdepth = 3
else:
# professional
maxdepth = 4
gmove = calc_move(self.match, maxdepth)
if(gmove != None):
curr_match = Match.objects.get(id=self.match.id)
if(curr_match.count == self.match.count and Match.does_thread_exist(self)):
move = self.match.do_move(gmove.srcx, gmove.srcy, gmove.dstx, gmove.dsty, gmove.prom_piece)
move.save()
self.match.save()
print("move saved")
else:
print("thread outdated - move dropped")
return gmove
def generate_move(match, cnt):
if(match.next_color() == Match.COLORS['white']):
move_list = WHITEMOVES
else:
move_list = BLACKMOVES
if(cnt >= CNT):
return CNT + 1, None
for i in range(cnt, CNT):
x1, y1 = Match.koord_to_index(move_list[i][0])
x2, y2 = Match.koord_to_index(move_list[i][1])
if(rules.is_move_valid(match, x1, y1, x2, y2, Match.PIECES['blk'])[0]):
gmove = calc.GenMove(x1, y1, x2, y2, Match.PIECES['blk'])
return i, gmove
return CNT + 1, None
def is_move_color_ok_OLD(piece, count):
color = Match.color_of_piece(piece)
if count % 2 == 0 and color == Match.COLORS["white"]:
return True
elif count % 2 == 1 and color == Match.COLORS["black"]:
return True
else:
return False
def pin_dir(match, scrx, srcy):
piece = match.readfield(scrx, srcy)
color = Match.color_of_piece(piece)
if color == Match.COLORS["white"]:
kgx = match.wKg_x
kgy = match.wKg_y
else:
kgx = match.bKg_x
kgy = match.bKg_y
direction, stepx, stepy = rook.rk_step(None, scrx, srcy, kgx, kgy)
if direction != DIRS["undefined"]:
dstx, dsty = search(match, scrx, srcy, stepx, stepy)
if dstx != UNDEF_X:
piece = match.readfield(dstx, dsty)
if (color == Match.COLORS["white"] and piece == Match.PIECES["wKg"]) or (
color == Match.COLORS["black"] and piece == Match.PIECES["bKg"]
):
reverse_dir = REVERSE_DIRS[direction]
reverse_dir, stepx, stepy = rook.rk_step(reverse_dir, None, None, None, None)
dstx, dsty = search(match, scrx, srcy, stepx, stepy)
if dstx != UNDEF_X:
piece = match.readfield(dstx, dsty)
if color == Match.COLORS["white"]:
if piece == Match.PIECES["bQu"] or piece == Match.PIECES["bRk"]:
return direction
else:
return DIRS["undefined"]
else:
if piece == Match.PIECES["wQu"] or piece == Match.PIECES["wRk"]:
return direction
else:
return DIRS["undefined"]
direction, stepx, stepy = bishop.bp_step(None, scrx, srcy, kgx, kgy)
if direction != DIRS["undefined"]:
dstx, dsty = search(match, scrx, srcy, stepx, stepy)
if dstx != UNDEF_X:
piece = match.readfield(dstx, dsty)
if (color == Match.COLORS["white"] and piece == Match.PIECES["wKg"]) or (
color == Match.COLORS["black"] and piece == Match.PIECES["bKg"]
):
reverse_dir = REVERSE_DIRS[direction]
reverse_dir, stepx, stepy = bishop.bp_step(reverse_dir, None, None, None, None)
dstx, dsty = search(match, scrx, srcy, stepx, stepy)
if dstx != UNDEF_X:
piece = match.readfield(dstx, dsty)
if color == Match.COLORS["white"]:
if piece == Match.PIECES["bQu"] or piece == Match.PIECES["bBp"]:
return direction
else:
return DIRS["undefined"]
else:
if piece == Match.PIECES["wQu"] or piece == Match.PIECES["wBp"]:
return direction
else:
return DIRS["undefined"]
return DIRS["undefined"]
def retrieve_move(match):
if(match.count == 0):
omoves = OpeningMove.objects.filter(movecnt=1)
if(omoves):
idx = random.randint(0, len(omoves) - 1)
x1, y1 = Match.koord_to_index(omoves[idx].src)
x2, y2 = Match.koord_to_index(omoves[idx].dst)
gmove = calc.GenMove(x1, y1, x2, y2, Match.PIECES['blk'])
print("------------ opening move found! --------------")
return gmove
else:
print("############ No opening move found ############")
return None
lastmove = Move.objects.get(match_id=match.id, count=match.count)
movesrc = Match.index_to_koord(lastmove.srcx, lastmove.srcy)
movedst = Match.index_to_koord(lastmove.dstx, lastmove.dsty)
prev_omoves = OpeningMove.objects.filter(movecnt=match.count, src=movesrc, dst=movedst)
prev_list = list(prev_omoves)
for prev_omove in prev_omoves:
previous = prev_omove.previous
while(previous):
try:
move = Move.objects.get(match_id=match.id, count=previous.movecnt)
except Move.DoesNotExist:
print("---------None---------")
return None
prevsrc = Match.index_to_koord(move.srcx, move.srcy)
prevdst = Match.index_to_koord(move.dstx, move.dsty)
if(previous.src != prevsrc or previous.dst != prevdst):
prev_list.remove(prev_omove)
break
previous = previous.previous
if(prev_list):
previous = prev_list[0]
omoves = OpeningMove.objects.filter(movecnt=match.count + 1, previous_id=previous.id)
if(omoves):
idx = random.randint(0, len(omoves) - 1)
x1, y1 = Match.koord_to_index(omoves[idx].src)
x2, y2 = Match.koord_to_index(omoves[idx].dst)
gmove = calc.GenMove(x1, y1, x2, y2, Match.PIECES['blk'])
print("------------ opening move found! --------------")
return gmove
else:
print("############ 1: No opening move found! ###############")
return None
else:
print("############ 2: No opening move found! ###############")
return None
def evaluate_contacts(match):
supported_whites = 0
attacked_whites = 0
supported_blacks = 0
attacked_blacks = 0
color = match.next_color()
for y in range(0, 8, 1):
for x in range(0, 8, 1):
piece = match.readfield(x, y)
if(Match.color_of_piece(piece) == Match.COLORS['undefined']):
continue
elif(Match.color_of_piece(piece) == Match.COLORS['white']):
supported_whites += rules.count_attacks(match, x, y, Match.COLORS['white'])
attacked_whites += rules.count_attacks(match, x, y, Match.COLORS['black'])
else:
supported_blacks += rules.count_attacks(match, x, y, Match.COLORS['black'])
attacked_blacks += rules.count_attacks(match, x, y, Match.COLORS['white'])
return (supported_whites - attacked_whites) - (supported_blacks - attacked_blacks)
def evaluate_developments(match):
developed_whites = 0
developed_blacks = 0
for y in range(0, 8, 1):
for x in range(0, 8, 1):
piece = match.readfield(x, y)
if(Match.color_of_piece(piece) == Match.COLORS['undefined']):
continue
elif(Match.color_of_piece(piece) == Match.COLORS['white']):
if(piece == Match.PIECES['wKn']):
if(y > 0):
developed_whites += 3
elif(piece == Match.PIECES['wBp']):
if(y > 0):
developed_whites += 2
elif(piece == Match.PIECES['wQu']):
if(y > 0):
developed_whites += 1
elif(piece == Match.PIECES['wKg']):
if(y == 0 and (x == 6 or x == 2)):
developed_whites += 2
else:
if(piece == Match.PIECES['bKn']):
if(y < 7):
developed_blacks -= 3
elif(piece == Match.PIECES['bBp']):
if(y < 7):
developed_blacks -= 2
elif(piece == Match.PIECES['bQu']):
if(y < 7):
developed_blacks -= 1
elif(piece == Match.PIECES['bKg']):
if(y == 7 and (x == 6 or x == 2)):
developed_blacks -= 2
return developed_whites + developed_blacks
def match(request, matchid=None, switch=0):
context = RequestContext(request)
if(matchid == None):
match = Match(white_player=None, black_player=None)
match.setboardbase()
else:
match = Match.objects.get(id=matchid)
lastmove = Move.objects.filter(match_id=match.id).order_by("count").last()
if(lastmove):
movesrc = Match.index_to_koord(lastmove.srcx, lastmove.srcy)
movedst = Match.index_to_koord(lastmove.dstx, lastmove.dsty)
else:
movesrc = ''
movedst = ''
fmtboard = fill_fmtboard(match, int(switch))
moves = []
currmove = Move.objects.filter(match_id=match.id).order_by("count").last()
if(currmove != None):
if(currmove.count % 2 == 0):
limit = 22
else:
limit = 21
qmoves = Move.objects.filter(match_id=match.id).order_by("-count")[:limit]
for qmove in reversed(qmoves):
moves.append(qmove)
comments = Comment.objects.filter(match_id=match.id).order_by("created_at").reverse()[:3]
fmtmsg = "<p class='ok'></p>"
if(int(switch) == 0):
rangeobj = range(8)
else:
rangeobj = range(7, -1, -1)
return render(request, 'kate/match.html', { 'match': match, 'board': fmtboard, 'switch': switch, 'movesrc': movesrc, 'movedst': movedst, 'moves': moves, 'comments': comments, 'msg': fmtmsg, 'range': rangeobj } )
def is_move_valid(match, srcx, srcy, dstx, dsty, prom_piece):
# print(" counts " + str(match.wKg_first_movecnt) + " " + str(match.wRk_h1_first_movecnt) + " " + str(match.wRk_a1_first_movecnt))
# print(" counts " + str(match.bKg_first_movecnt) + " " + str(match.bRk_h8_first_movecnt) + " " + str(match.bRk_a8_first_movecnt))
# print("-------------------------------------------")
if not is_move_inbounds(srcx, srcy, dstx, dsty):
return False, ERROR_CODES["out-of-bounds"]
piece = match.readfield(srcx, srcy)
if match.next_color() != Match.color_of_piece(piece):
return False, ERROR_CODES["wrong-color"]
if piece != Match.PIECES["wKg"] and piece != Match.PIECES["bKg"]:
if is_king_after_move_attacked(match, srcx, srcy, dstx, dsty):
return False, ERROR_CODES["king-error"]
if piece == Match.PIECES["wPw"] or piece == Match.PIECES["bPw"]:
if not pawn.is_move_ok(match, srcx, srcy, dstx, dsty, piece, prom_piece):
return False, ERROR_CODES["pawn-error"]
else:
return True, ERROR_CODES["none"]
elif piece == Match.PIECES["wRk"] or piece == Match.PIECES["bRk"]:
if not rook.is_move_ok(match, srcx, srcy, dstx, dsty, piece):
return False, ERROR_CODES["rook-error"]
else:
return True, ERROR_CODES["none"]
elif piece == Match.PIECES["wKn"] or piece == Match.PIECES["bKn"]:
if not knight.is_move_ok(match, srcx, srcy, dstx, dsty, piece):
return False, ERROR_CODES["knight-error"]
else:
return True, ERROR_CODES["none"]
elif piece == Match.PIECES["wBp"] or piece == Match.PIECES["bBp"]:
if not bishop.is_move_ok(match, srcx, srcy, dstx, dsty, piece):
return False, ERROR_CODES["bishop-error"]
else:
return True, ERROR_CODES["none"]
elif piece == Match.PIECES["wQu"] or piece == Match.PIECES["bQu"]:
if not queen.is_move_ok(match, srcx, srcy, dstx, dsty, piece):
return False, ERROR_CODES["queen-error"]
else:
return True, ERROR_CODES["none"]
elif piece == Match.PIECES["wKg"] or piece == Match.PIECES["bKg"]:
if not king.is_move_ok(match, srcx, srcy, dstx, dsty, piece):
return False, ERROR_CODES["king-error"]
else:
return True, ERROR_CODES["none"]
else:
return False, ERROR_CODES["general-error"]
def is_move_ok(match, srcx, srcy, dstx, dsty, piece, prom_piece):
DIRS = rules.DIRS
direction = pw_dir(srcx, srcy, dstx, dsty, piece)
if(direction == DIRS['undefined']):
return False
pin_dir = rules.pin_dir(match, srcx, srcy)
if(direction == DIRS['north'] or direction == DIRS['south'] or direction == DIRS['2north']
or direction == DIRS['2south']):
if(pin_dir != DIRS['north'] and pin_dir != DIRS['south'] and pin_dir != DIRS['undefined']):
return False
elif(direction == DIRS['north-west'] or direction == DIRS['south-east']):
if(pin_dir != DIRS['north-west'] and pin_dir != DIRS['south-east'] and pin_dir != DIRS['undefined']):
return False
elif(direction == DIRS['north-east'] or direction == DIRS['south-west']):
if(pin_dir != DIRS['north-east'] and pin_dir != DIRS['south-west'] and pin_dir != DIRS['undefined']):
return False
dstpiece = match.readfield(dstx, dsty)
dstcolor = Match.color_of_piece(dstpiece)
if(direction == DIRS['north'] or direction == DIRS['south']):
if(dstpiece != Match.PIECES['blk']):
return False
elif(direction == DIRS['2north']):
midpiece = match.readfield(dstx, srcy + 1)
if(midpiece != Match.PIECES['blk'] or dstpiece != Match.PIECES['blk']):
return False
elif(direction == DIRS['2south']):
midpiece = match.readfield(dstx, srcy - 1)
if(midpiece != Match.PIECES['blk'] or dstpiece != Match.PIECES['blk']):
return False
if(direction == DIRS['north-west'] or direction == DIRS['north-east']):
if(dstcolor != Match.COLORS['black']):
return is_white_ep_move_ok(match, srcx, srcy, dstx, dsty)
elif(direction == DIRS['south-east'] or direction == DIRS['south-west']):
if(dstcolor != Match.COLORS['white']):
return is_black_ep_move_ok(match, srcx, srcy, dstx, dsty)
if(piece == Match.PIECES['wPw'] and dsty == 7 and not (prom_piece == Match.PIECES['wQu'] or
prom_piece == Match.PIECES['wRk'] or prom_piece == Match.PIECES['wBp'] or prom_piece == Match.PIECES['wKn'])):
return False
elif(piece == Match.PIECES['bPw'] and dsty == 0 and not (prom_piece == Match.PIECES['bQu'] or
prom_piece == Match.PIECES['bRk'] or prom_piece == Match.PIECES['bBp'] or prom_piece == Match.PIECES['bKn'])):
return False
return True
def is_move_available(match):
color = match.next_color()
for y1 in range(8):
for x1 in range(8):
piece = match.readfield(x1, y1)
if color == Match.color_of_piece(piece):
if color == Match.COLORS["white"]:
prom_piece = Match.PIECES["wQu"]
else:
prom_piece = Match.PIECES["bQu"]
for y2 in range(8):
for x2 in range(8):
flag = is_move_valid(match, x1, y1, x2, y2, prom_piece)[0]
if flag:
return True
return False
def evaluate_piece_moves(match, srcx, srcy):
color = match.next_color()
piece = match.readfield(srcx, srcy)
movecnt = 0
if(Match.color_of_piece(piece) != color):
return movecnt
if(piece == Match.PIECES['wQu'] or piece == Match.PIECES['bQu']):
dirs = [ [0, 1], [0, -1], [1, 0], [-1, 0], [1, 1], [-1, -1], [-1, 1], [1, -1] ]
dircnt = 8
stepcnt = 7
value = 2
elif(piece == Match.PIECES['wRk'] or piece == Match.PIECES['bRk']):
dirs = [ [0, 1], [0, -1], [1, 0], [-1, 0] ]
dircnt = 4
stepcnt = 7
value = 4
elif(piece == Match.PIECES['wBp'] or piece == Match.PIECES['bBp']):
dirs = [ [1, 1], [-1, -1], [-1, 1], [1, -1] ]
dircnt = 4
stepcnt = 7
value = 6
elif(piece == Match.PIECES['wKn'] or piece == Match.PIECES['bKn']):
dirs = [ [1, 2], [2, 1], [2, -1], [1, -2], [-1, -2], [-2, -1], [-2, 1], [-1, 2] ]
dircnt = 8
stepcnt = 1
value = 6
else:
return movecnt
for j in range(dircnt):
stepx = dirs[j][0]
stepy = dirs[j][1]
dstx = srcx
dsty = srcy
for i in range(stepcnt):
dstx += stepx
dsty += stepy
flag,errcode = rules.is_move_valid(match, srcx, srcy, dstx, dsty, Match.PIECES['blk'])
if(flag):
movecnt += value
elif(errcode == rules.ERROR_CODES['out-of-bounds']):
break
return (movecnt // 10)
def is_king_after_move_attacked(match, srcx, srcy, dstx, dsty):
piece = match.readfield(srcx, srcy)
match.writefield(srcx, srcy, Match.PIECES["blk"])
dstpiece = match.readfield(dstx, dsty)
match.writefield(dstx, dsty, piece)
color = Match.color_of_piece(piece)
if color == Match.COLORS["white"]:
flag = attacked(match, match.wKg_x, match.wKg_y, Match.COLORS["black"])
else:
flag = attacked(match, match.bKg_x, match.bKg_y, Match.COLORS["white"])
match.writefield(dstx, dsty, dstpiece)
match.writefield(srcx, srcy, piece)
return flag
def is_move_ok(match, srcx, srcy, dstx, dsty, piece):
DIRS = rules.DIRS
direction = kn_dir(srcx, srcy, dstx, dsty)
if(direction == DIRS['undefined']):
return False
color = Match.color_of_piece(piece)
pin_dir = rules.pin_dir(match, srcx, srcy)
if(pin_dir != DIRS['undefined']):
return False
field = match.readfield(dstx, dsty)
if(match.color_of_piece(field) == color):
return False
return True
def prnt_move(msg, move):
print(msg +
Match.index_to_koord(move.srcx, move.srcy) + " " +
Match.index_to_koord(move.dstx, move.dsty) + " " +
helper.reverse_lookup(Match.PIECES, move.prom_piece), end="")
def calc_min(match, maxdepth, depth, alpha, beta):
generator = Generator()
generator.match = match
gmove = None
color = match.next_color()
newscore = None
minscore = 200000
oldscore = 0
count = 0
while(generator.active):
flag, newgmove = generator.generate_move()
if(flag):
count += 1
oldscore = match.score
move = match.do_move(newgmove.srcx, newgmove.srcy, newgmove.dstx, newgmove.dsty, newgmove.prom_piece)
match.move_list.append(move)
if(depth == 1):
msg = "\nmatch.id:" + str(match.id) + " calculate "
prnt_move(msg, newgmove)
if(gmove):
prnt_move(" CANDIDATE ", gmove)
print(" score: " + str(newscore))
thread = Match.get_active_thread(match)
if(thread and newscore):
thread.populate_candiate(gmove)
if(depth <= maxdepth):
newscore = calc_max(match, maxdepth, depth + 1, alpha, minscore)[0]
elif(depth <= maxdepth + 2):
if(match.next_color() == Match.COLORS['white']):
wkg_attacked = rules.attacked(match, match.wKg_x, match.wKg_y, Match.COLORS['black'])
white_promotion = match.readfield(newgmove.dstx, newgmove.dsty) == Match.PIECES['wPw'] and newgmove.dsty >= 6
if(oldscore != match.score or wkg_attacked or white_promotion ):
newscore = calc_max(match, maxdepth, depth + 1, alpha, minscore)[0]
else:
newscore = match.score + calc_helper.evaluate_position(match)
else:
bkg_attacked = rules.attacked(match, match.bKg_x, match.bKg_y, Match.COLORS['white'])
black_promotion = match.readfield(newgmove.dstx, newgmove.dsty) == Match.PIECES['bPw'] and newgmove.dsty <= 1
if(oldscore != match.score or bkg_attacked or black_promotion):
newscore = calc_max(match, maxdepth, depth + 1, alpha, minscore)[0]
else:
newscore = match.score + calc_helper.evaluate_position(match)
elif(depth <= maxdepth + 4 and oldscore != match.score):
newscore = calc_max(match, maxdepth, depth + 1, alpha, minscore)[0]
else:
newscore = match.score + calc_helper.evaluate_position(match)
newscore, gmove = rate(color, gmove, newgmove, minscore, newscore)
match.undo_move(True)
if(newscore < minscore):
minscore = newscore
if(minscore <= alpha):
break
else:
if(count == 0):
status = rules.game_status(match)
if(status == Match.STATUS['winner_black']):
newscore = Match.SCORES[Match.PIECES['wKg']]
elif(status == Match.STATUS['winner_white']):
newscore = Match.SCORES[Match.PIECES['bKg']]
elif(status == Match.STATUS['draw']):
newscore = Match.SCORES[Match.PIECES['blk']]
else:
newscore = match.score
if(depth == 1):
msg = "\nmatch.id:" + str(match.id) + " CANDIDATE "
prnt_move(msg, gmove)
print(" score: " + str(newscore))
thread = Match.get_active_thread(match)
if(thread):
thread.populate_candiate(gmove)
return newscore, gmove
return minscore, gmove
def generate_move(self):
gmove = GenMove()
color = self.match.next_color()
while(self.active):
if(self.steps == None):
piece = self.match.readfield(self.board_x, self.board_y)
if(piece == Match.PIECES['blk'] or color != Match.color_of_piece(piece)):
if(self.rotate_field()):
continue
else:
return False, gmove
else:
if(piece == Match.PIECES['wPw']):
if(self.board_y < 6):
self.steps = WPW_STEPS
self.dir_idx = 0
self.max_dir = 4
self.step_idx = 0
self.max_step = 1
else:
self.steps = WPROM_STEPS
self.dir_idx = 0
self.max_dir = 3
self.step_idx = 0
self.max_step = 4
elif(piece == Match.PIECES['bPw']):
if(self.board_y > 1):
self.steps = BPW_STEPS
self.dir_idx = 0
self.max_dir = 4
self.step_idx = 0
self.max_step = 1
else:
self.steps = BPROM_STEPS
self.dir_idx = 0
self.max_dir = 3
self.step_idx = 0
self.max_step = 4
elif(piece == Match.PIECES['wRk'] or piece == Match.PIECES['bRk']):
self.steps = RK_STEPS
self.dir_idx = 0
self.max_dir = 4
self.step_idx = 0
self.max_step = 7
elif(piece == Match.PIECES['wBp'] or piece == Match.PIECES['bBp']):
self.steps = BP_STEPS
self.dir_idx = 0
self.max_dir = 4
self.step_idx = 0
self.max_step = 7
elif(piece == Match.PIECES['wKn'] or piece == Match.PIECES['bKn']):
self.steps = KN_STEPS
self.dir_idx = 0
self.max_dir = 8
self.step_idx = 0
self.max_step = 1
elif(piece == Match.PIECES['wQu'] or piece == Match.PIECES['bQu']):
self.steps = QU_STEPS
self.dir_idx = 0
self.max_dir = 8
self.step_idx = 0
self.max_step = 7
else:
self.steps = KG_STEPS
self.dir_idx = 0
self.max_dir = 10
self.step_idx = 0
self.max_step = 1
stepx, stepy, prom_piece = self.read_steps()
dstx = self.board_x + stepx
dsty = self.board_y + stepy
flag, errmsg = rules.is_move_valid(self.match, self.board_x, self.board_y, dstx, dsty, prom_piece)
if(flag):
gmove = GenMove(self.board_x, self.board_y, dstx, dsty, prom_piece)
self.rotate()
return True, gmove
else:
if(errmsg == rules.ERROR_CODES['king-error']):
self.rotate()
else:
if(self.rotate_dir() == False):
return False, gmove
return False, gmove
def create(request):
context = RequestContext(request)
if(request.method == 'POST'):
match = Match()
match.white_player = request.POST['white_player']
if(request.POST.get('white_player_human')):
match.white_player_human = True
else:
match.white_player_human = False
match.black_player = request.POST['black_player']
if(request.POST.get('black_player_human')):
match.black_player_human = True
else:
match.black_player_human = False
levellist = request.POST.getlist('level')
match.level = Match.LEVEL[levellist[0]]
if(len(match.white_player) > 0 and len(match.black_player) > 0):
match.setboardbase()
match.save()
calc_move_for_immanuel(match)
return HttpResponseRedirect(reverse('kate:match', args=(match.id,)))
return render(request, 'kate/new.html', { 'white_player': match.white_player, 'white_player_human': match.white_player_human, 'black_player': match.black_player, 'black_player_human': match.black_player_human } )