# Basic_Text_Adventure.py

# Basic_Text_Adventure.py
import os
import random

class Cv():
    loop='1'
cv=Cv()

got=[]
def ask(q):
    if not q: q="What do you do? "
    return raw_input(q).lower().strip()

def opt(options):
    s=[]
    print
    z=options.replace('\t','')
    z=z.split('\n')
    for a,b in enumerate(z):
        if a:
            b,c=b.split(' <> ')
            s.append(c)
            print a,'=',b
    print
    try:
        ans=int(ask(z[0]))
        cls()
        if '#' in s[ans-1]:
            cv.loop=s[ans-1][1:]
            print 'CHANGE OF SCENARIO --'
        else:
            print s[ans-1]
        return ans
    except:
        cls()
        print '???'

def repl_(z,x):
    x=x.replace('\t','')
    target,found,zzz,x=x.split('\n')
    if target not in got:
        return z.replace('@'+target,found)
    return z.replace('@'+target,zzz)

def sep():
    print("_"*80)

def cls():
    os.system('cls' if os.name == 'nt' else 'clear')
    print

while True:
    cls()
    print("Welcome to Zork - The Unofficial Python Demo Version")

    # First Input
    while cv.loop == '1':
        sep()
        print("You are standing in an open field west of a white mansion.")
        print("A secret path leads southwest into the forest.")
        print("There is a small mailbox.")
        z='''
        open door <> The door is heavily secured.
        look at house <> It is clear that the owners must have been wealthy.
        take mailbox <> It is securely anchored.
        @leaflet
        go southwest <> #2'''
        z=repl_(z, '''leaflet
        open mailbox <> Opening the small mailbox reveals a leaflet.
        read leaflet <> Written:  Your mission is to find a Jade Statue.
        ''')
        ans=opt(z)
        if ans is 4: got.append('leaflet')

    # Southwest
    while cv.loop == '2':
        sep()
        print("This is a forest, with trees in all directions. To the east, there appears to be sunlight.")
        opt('''
        go west <> You would need a machete to go further west
        go north <> The forest becomes impenetrable to the North
        go south <> Storm-tossed trees block your way
        go east <> #3''')

    # East and Grating Input
    while cv.loop == '3':
        sep()
        print("You are in a clearing, with a forest surrounding you on all sides.\nA path leads south.")
        print("There is an open grating, descending into darkness.")
        opt('''
        go south <> You see a large ogre and turn around
        descend grating <> #4''')

    # Grating and Cave Input
    while cv.loop == '4':
        sep()
        print("You are in a tiny cave with a dark, forbidding staircase leading down.")
        print("There is a skeleton of a human male in one corner.")
        opt('''
        take skeleton <> Why would you do that? Are you some sort of sicko?
        smash skeleton <> Ugh... have you no respect?
        light up room <> You would need a torch or lamp to do that.
        ascend grating <> #5
        descend staircase <> #6
        go down staircase <> #6''')
    if cv.loop == '5':
        sep()
        print("In backing out, you are immediately met with shadowy large monster just outside that... took your life.")
        print
        cv.loop='end'

    # Final Destination
    while cv.loop == '6':
        sep()
        print("You have entered a mud-floored room.")
        print("Lying half buried in the mud is an old trunk... bulging with assorted jewels !!!")
        print("There is an old trunk here, bulging with assorted jewels.")
        opt('''
        open trunk <> #glory''')

    # End of game
    while cv.loop == 'glory':
        sep()
        print("You have found the Jade Statue and have completed your quest !!!")
        cv.loop='end'

    # Exit at the end of game
    while cv.loop == 'end':
        yn=ask("Do you want to play again? Y/N ")
        if yn == ("n"): quit(1)
        elif yn == ("y"): cv.loop='1'