def adjacent_railroad_moves(cls, spec, orig_position, position, corner):
"""Gets adjacent railroad moves and is used for traversing the
railroad.
To use this function correctly, you must know:
- the type of a piece
- which is at a specific position
- that it can travel to some other position on the railroad
- whether traveling to this other position consists of moving
around a railroad corner
These things correspond to the arguments to the function.
The return value is a dict mapping Coord objects to either
'RAILROAD' or 'RAILROAD_CORNER', depending on the move type.
"""
def component_values(line):
for position_component, line_component in zip(position, line):
values = (position_component - 1, position_component,
position_component + 1)
yield tuple(val for val in values if val in line_component)
for line in cls.nonabsolute_railroad_lines():
if (match_sequence(position, line)
and (not spec or spec.railroad_corners
or match_sequence(orig_position, line))):
new_corner = corner
if new_corner is False:
new_corner = not match_sequence(orig_position, line)
for components in product(*component_values(line)):
if components != position:
yield components, new_corner
def position_match(cls, position, matchval):
"""Check whether a position matches a given matchval.
This supports both match_sequence based matching and matching based
on the Space object at the given position.
"""
if isinstance(matchval, Space):
return cls.position_spec(position) == matchval
else:
return match_sequence(position, matchval)
def position_match(cls, position, matchval):
"""Check whether a position matches a given matchval.
This supports both match_sequence based matching and matching based
on the Space object at the given position.
"""
if isinstance(matchval, Space):
return cls.position_spec(position) == matchval
else:
return match_sequence(position, matchval)
def adjacent_railroad_moves(cls, spec, orig_position, position, corner):
def component_values(line):
for position_component, line_component in zip(position, line):
values = (position_component - 1,
position_component,
position_component + 1)
yield tuple(val for val in values
if val in line_component)
for line in cls.nonabsolute_railroad_lines():
if (match_sequence(position, line) and
(not spec or
spec.railroad_corners or
match_sequence(orig_position, line))):
new_corner = corner
if new_corner is False:
new_corner = not match_sequence(orig_position, line)
for components in product(*component_values(line)):
if components != position:
yield components, new_corner
def adjacent_railroad_moves(cls, spec, orig_position, position, corner):
"""Gets adjacent railroad moves and is used for traversing the
railroad.
To use this function correctly, you must know:
- the type of a piece
- which is at a specific position
- that it can travel to some other position on the railroad
- whether traveling to this other position consists of moving
around a railroad corner
These things correspond to the arguments to the function.
The return value is a dict mapping Coord objects to either
'RAILROAD' or 'RAILROAD_CORNER', depending on the move type.
"""
def component_values(line):
for position_component, line_component in zip(position, line):
values = (position_component - 1,
position_component,
position_component + 1)
yield tuple(val for val in values
if val in line_component)
for line in cls.nonabsolute_railroad_lines():
if (match_sequence(position, line) and
(not spec or
spec.railroad_corners or
match_sequence(orig_position, line))):
new_corner = corner
if new_corner is False:
new_corner = not match_sequence(orig_position, line)
for components in product(*component_values(line)):
if components != position:
yield components, new_corner
