Solution script for Mission 14

dewalker.py

class Stack:
  def __init__(self):
    self.__storage = []

  def isEmpty(self):
    return len(self.__storage) == 0

  def push(self,p):
    self.__storage.append(p)

  def pop(self):
    return self.__storage.pop()

  def p(self):
  	print self.__storage


W = 57
H = 25

dx = 0
dy = 0

cur_pos = {'x':0,'y':9, 'action': 'Init'}
stack = Stack()
stack.push(cur_pos)
with open('log.txt') as f, open('map.raw','wb') as d:
   d.write("#"*W*H)
   pos = (max(cur_pos['y']+dy,0))*W +(max(cur_pos['x']+dx,0))
   d.seek(pos)
   d.write('.')
   for l in f:
   	  print l
   	  if "break" in l:
   	  	break
   	  if "EAST" in l:
   	  	dx = 1
   	  	dy = 0
   	  	act = "EAST"
   	  if "WEST" in l:
   	  	dx = -1
   	  	dy = 0
   	  	act = "WEST"
   	  if "NORTH" in l:
   	  	dx = 0
   	  	dy = -1
   	  	act = "NORTH"
   	  if "SOUTH" in l:
   	  	dx = 0
   	  	dy = 1
   	  	act = "SOUTH"
   	  if "Steping back." in l:
   	  	cur_pos = stack.pop()
   	  	print 'A step back to: x: '+str(cur_pos['x'])+', y: '+str(cur_pos['y'])
   	  if "Taking a step." in l:
   	  	pos = (max(cur_pos['y']+dy,0))*W +(max(cur_pos['x']+dx,0))
   	  	d.seek(pos)
   	  	d.write('.')
   	  	stack.push({'x':cur_pos['x'],'y':cur_pos['y']})
   	  	cur_pos = {'x':cur_pos['x']+dx,'y':cur_pos['y'] +dy, 'action': act}
   	  	print cur_pos
   	  	pos = (max(cur_pos['y'],0))*W +(max(cur_pos['x'],0))
   	  	d.seek(pos)
   	  	d.write('.')
   	  if "There be dragons!" in l:
   	  	continue
   	  if "A wild wall appears!" in l:
   	  	pos = {'x':max(cur_pos['x']+dx,0),'y':max(cur_pos['y']+dy,0)}
   	  	print "Wall at: ",pos