1. ./consecutiveHeads.py
2. ./consecutiveHeads_with_break.py
3. ./demo_str.py
4. ./game.py
5. ./string_compare.py
6. ./string_methods.py
7. ./survey.py

# Count how many times it takes to get 3 consecutive heads
# By CSCI111

from game import *

NUM_CONSECUTIVE = 3

print("This program finds how many coin flips it took before")
print("we get", NUM_CONSECUTIVE, "consecutive heads")

# keep track of the total number of flips
total_flips = 0
# keep track of the number of consecutive heads
num_consecutive_heads = 0

while num_consecutive_heads < NUM_CONSECUTIVE: 

    # repeat flips
    side = flipCoin()
    
    # update the number of flips
    total_flips += 1
    
    # check what we flipped
    if side == HEADS:
        print("HEADS")
        num_consecutive_heads += 1
    else: 
        print("TAILS")
        num_consecutive_heads = 0
        
print("The number of flips to", NUM_CONSECUTIVE, "is", total_flips)
    

# Count how many times it takes to get 3 consecutive heads.
# This version uses a break statement
# By CSCI111

from game import *

NUM_CONSECUTIVE = 3

print("This program finds how many coin flips it took before")
print("we get", NUM_CONSECUTIVE, "consecutive heads")


# keep track of the total number of flips
total_flips = 0
# keep track of the number of consecutive heads
num_consecutive_heads = 0

while True: 
    # repeat flips
    side = flipCoin()
    
    # update the number of flips
    total_flips += 1
    
    # check what we flipped
    if side == HEADS:
        print("HEADS")
        num_consecutive_heads += 1
    else: 
        print("TAILS")
        num_consecutive_heads = 0
        
    if num_consecutive_heads == NUM_CONSECUTIVE:
        break
        
print("The number of flips to", NUM_CONSECUTIVE, "is", total_flips)
    

# Demonstrate strings and long strings
# by Sara Sprenkle

string = """This is a long string.
Like, really long.
Sooooo loooooong"""

print(string)

# Later: how could you do this with escape sequences?

# Helpful functions for games 
# by CSCI111

from random import *

HEADS=0
TAILS=1

def flipCoin():
    """
    Simulates flipping a non-biased coin.
    returns either HEADS or TAILS.
    """
    return randint(HEADS, TAILS)
    
def testFlipCoin():
    """ tests the flipCoin function.
    Does not _guarantee_ success but helps gain confidence in correctness
    """
    numTests = 20
    numSuccesses = 0
    
    for x in range(numTests):
        flipped = flipCoin()
        
        if flipped == HEADS or flipped == TAILS:
            numSuccesses += 1
            
    print( numSuccesses, "out of", numTests, "tests passed.")
    
if __name__ == '__main__':
    testFlipCoin()

# Program compares two strings
# by Sara Sprenkle

str1 = input("Enter a string to compare: ")
str2 = input("Compare '" + str1 + "' with what string? ")

print("-" * 40)

if str1 < str2 :
    print("Alphabetically,", str1, "comes before", str2 + ".")
elif str1 > str2:
    print("Alphabetically,", str2, "comes before", str1 + ".")
else:
    print("You tried to trick me!", str1, "and", str2, "are the same word!")

# Manipulate strings, using methods
# by Sara Sprenkle

sentence = input("Enter a sentence to mangle: ")

length = len(sentence)

# Question: What does the statement below do?
print("*", sentence.center(int(length*1.5)), "*")

upperSentence = sentence.upper()
print(upperSentence)
print(sentence)

print("Uppercase: ", sentence.upper())
print()
print("Lowercase: ", sentence.lower())
print()

# Answer before running...
print("Did sentence change?: ", sentence)

# Demonstrate use of string concatenation, strings as constants
# by CS111

import sys
from random import *

SCALE_MIN=1
SCALE_MAX=100
SUBJECT = "Zendaya"
DIVIDER_LENGTH=50
NUM_TIMES=3

divider="-"*DIVIDER_LENGTH

prompt = "On a scale of " + str(SCALE_MIN) + " to " + str(SCALE_MAX) + ", how much do you like "+ SUBJECT

print(divider)

for whichTime in range(NUM_TIMES):
    # ask survey question, respond with a wise crack
    rating = float(input(prompt))
    if rating < SCALE_MIN or rating > SCALE_MAX:
        print("Your rating is not in the valid range", SCALE_MIN, "to", SCALE_MAX)
    else: 
        responseType = randint(0,3)
        if responseType <= 1:
            print(rating,"?!?  That's more than I do.")
        elif responseType == 2:
            print("yup, right on.")
        else:
            print("Nah,", rating, "is much too low.")
    
    print(divider)