def get(self):
if self.side == 0:
- return self.front
+ return (self.front, self.back)
else:
- return self.back
+ return (self.back, self.front)
def flip(self):
if self.side == 0:
def __init__(self):
self.index = 0
+ self.side = 0
def forward(self, stack):
if self.index != len(stack):
def back(self):
if not self.index < 1:
self.index -= 1
+
+ def get_reverse(self):
+ if self.side == 0:
+ return 1
+ else:
+ return 0