cs8project

#PROJECT 2
#Kevin Zhang and Sijia Sun
#Raymond Wong
#Section 3
#Encrypting Messages
#STEP 1
def shortenKey(raw_key):
index = 0
short_key = ''
for ch in raw_key:
newIndex = 0
furthestIndex = -1
for newch in raw_key:
if newch == ch and index != newIndex:
furthestIndex = newIndex
newIndex += 1
if furthestIndex == -1 or furthestIndex < index:
short_key += ch
index += 1
return short_key
def generateKey(raw_key):
key = ''
for ch in shortenKey(raw_key):
count = 0
for newch in shortenKey(raw_key):
if newch < ch:
count = count + 1
key += str(count+1)
return key
#STEP 2
import random
def toPlaintext(s, keyLength):
intermediate = ''
for c in s:
if ord(c) > 64 and ord(c) < 91:
intermediate += c
plaintext = intermediate
for i in range((keyLength - len(plaintext) % keyLength) % keyLength):
plaintext += chr(random.randint(65, 90))
return plaintext
# STEP 3

def columnar(plaintext, key):
ciphertext = ''
for i in range(len(str(key))):
ki = 0
for k in str(key):
if str(k) == str(i + 1):
pi = 0
for p in plaintext:
if pi % len(str(key)) == ki:
ciphertext += p
pi += 1
ki += 1
return ciphertext
# STEP 4
def encryptColumnar(s, raw_key):
key = generateKey(raw_key)
plaintext = toPlaintext(s, len(key))
return columnar(plaintext, key)
input_s = input('Enter the message: ')
input_key = input('Enter the raw key for columnar transposition: ')
print encryptColumnar(input_s, input_key)
project 3
#Raymond Wong

#Section 3
#Creating a Dictionary of Constellations and Stars
def starSetup():
newfile=open('starfile.txt','r')
s=newfile.readlines()
newfile.close()
news=[]
seplst=''
dictStar={}
for i in range(len(s)):
news.append(s[i].strip('n')) #eliminate n in each string
for j in range(len(news)):
seplst=news[j]
seplst=seplst.split() #eliminate all spaces
tup=(float(seplst[1]),float(seplst[2])) #create tuple
dictStar[seplst[0]]=tup #assign each key with a value in dict
return dictStar
def starData(starName,dictStar): #test if starName is in dictStar
if starName in dictStar:
return dictStar[starName] #if true, return value for starName
else:
return 'Not found in dictStar'
def starDistance(low,high):
dictStar=starSetup()
for key in dictStar.keys(): #using for loop to get every key in dictStar
if (dictStar[key][0]> low) and (dictStar[key][0]<high): #test for the conditions of Distance
print (key)
def starAPPVM(low,high):
dictStar=starSetup()
for key in dictStar.keys():
if (dictStar[key][1]> low) and (dictStar[key][1]<high):#test for the conditions of APPVM
print (key)
def starAvs(myDict): #for test procedure, we use starAvs(starSetup())
#G0
G0=[]
disG0=0
avgG0=0.0
for key in myDict.keys():
if (myDict[key][1]> 0.0) and (myDict[key][1]<=0.50): #test for the range from 0.0 to 0.5
G0.append(key) # add starname into G0 list

for i in range(len(G0)): #calculate total distance for G0
value=myDict[G0[i]]
disG0+=value[0]
avgG0=disG0/len(G0)
print('The mean distance of the stars in dictStar with 0.0 < APPVM <= 0.5 is '+str(avgG0))
#G1

#Raymond Wong
#Section 3
#Project 4
#Creating an Slideshow Window Program
from cImage import *
myWin = ImageWin("SlideShow", 400, 350) #opens window with dimensions 400x350
bottomBar = FileImage('/cs/student/kqzhang/cs8/p4images/bottom_bar.gif')
firstImage = FileImage('/cs/student/kqzhang/cs8/p4images/picture0.gif')
firstImage.draw(myWin)
bottomBar.setPosition(0,300)
bottomBar.draw(myWin)
def imageChange(i):
change = myWin.getMouse()
#print(change)
if change[0] in range(20, 60):
if change[1] in range(305, 345):
#print('left')
i = (i-1)%len(acc)
acc[i].draw(myWin)
elif change[0] in range(340,380):
if change[1] in range(305,345):
i = (i+1)%len(acc)
acc[i].draw(myWin)
elif change[0] in range(180, 220):
if change[1] in range(305,345):
myWin.exitOnClick()
return i
acc = []
def album(n): #input as 'n'
for img in range(0, n):
imgClxn = FileImage('/cs/student/kqzhang/cs8/p4images/picture' + str(img) + '.gif')
acc.append(imgClxn)
i = 0
while True:
i = imageChange(i)
album(7)

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