pyScrambleFilmTitles

# Create Scrambled Text containing a Film Title

import random

letters = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"

# A list of Film Titles from which we will try and make usable scrambled text
titles = ["Toy Story", "Silent Running", "Star Wars", "The Good Life", "Ground Hog Day", "High Noon",
          "Forrest Gump", "The Godfather", "Mary Poppins", "Great Expectations", "Romeo and Juliet",
          "Pulp Fiction", "Citizen Kane", "Thunderball", "Goldfinger", "The Searchers", "Top Gun"]


def func(s, v, z):          # s = film title, v = size of array to be created, z = initial letter for output
    s = z + s               # add initial dummy letter to the film title
    s += "."                # append a terminal full-stop
    x = 0
    arr = ['-'] * v         # create an initial "empty" array where scrambled output will be created
    for j, c in enumerate(s):
        try:
            d = arr[x]
        except:
            return False       # error. went outside of array
        if arr[x] != "-":
            return False       # error:- this array slot already used
        arr[x] = c
        off = 1 + (ord(c) & 15)     # compute increment or decrement
        if off % 2:
            x += off                # add increment to index
        else:
            x -= off                # subtract increment from index

    # scrambling was successful. fill the empty cells with random letters
    for j, c in enumerate(arr):
        if c == "-":
            arr[j] = random.choice(letters)
    mystring = "".join(arr)
    return mystring                 # return scrambled text


for sent in titles:                         # For each film title ...
    for vv in range(40, 120, 5):            # Try a variety of array lengths
        aa = random.choice(letters)        # Choose a dummy starting letter

        res = func(sent, vv, aa)            # Try and scramble this film title
        if res:                             # Check if successful
            print(sent, "Succeeded with a scrambled length of: ", vv)        # show the good results
            print(res, "\n")
            break


# Sample results:
# Toy Story Succeeded with a scrambled length of:  55
# aiFodtHVZPE.XJGmTErFoyIdNfZeNtTx SoHvqToGdyculkzqjiDSTT
#
# Silent Running Succeeded with a scrambled length of:  65
# cEiXtASnc RiBuXZLrtHyfnPugjnPpZFhs.kciGgcVgGdCZlMJVoeonZpiHCeSUiO
#
# Mary Poppins Succeeded with a scrambled length of:  50
# HAxcCVvSeMruLUnnkRNxICppi.ntvsHpoRMK PoEVBgrdayjoJ
#
# Top Gun Succeeded with a scrambled length of:  40
# deERkTltgEoOszlxTkcYqhniGXlKurhxJAp G.Rh