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 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_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
