def step_to(self, node):
"""
steps to a node connected to the current node and marks all the components connecting the two nodes as seen
:param node:
:type node: Node
:return: the list of components stepped over (connecting to the current node and the next node)
"""
connecting_list = helper_funcs.connecting(node, self.location)
if node not in self.directions():
return self.location
self.location = node
self.components_seen.extend(connecting_list)
self.nodes_seen.append(self.location)
return connecting_list
def step_along(self, node):
"""
steps to a node connected to the current node and marks only
the first unseen component as read (as if stepping along that component)
:param node:
:type node: Node
:return: the component stepped along (the one marked as seen)
"""
unseen_connecting_list = self.unseen(helper_funcs.connecting(node, self.location))
if node not in self.directions():
raise ValueError
self.location = node
if not unseen_connecting_list:
return []
self.components_seen.append(unseen_connecting_list[0])
self.nodes_seen.append(self.location)
return unseen_connecting_list[0]
def step_to(self, node):
for comp in helper_funcs.connecting(self.location, node):
self.branch.add_comp(comp)
super(BranchCreatorCursor, self).step_to(node)
self.branch.add_node(node)
return helper_funcs.connecting(self.last_node_seen(), node)
