Coin Flip Streaks ver. 2 // absp

# https://automatetheboringstuff.com/2e/chapter4/
# project 2 Coin Flip Streaks ver. 2

import random

numberOfStreaks = 0
runs = 10000
flips_per_run = 100
streakNo = 6                        # how many streaks to look for

streaksCounter = 0                  # counts consequtive strikes
currentIndex = None                 # records current index in flipsList
nextIndex = None                    # records next index in flipsList

for i in range(runs):
    # Code that creates a list of 100 'heads' or 'tails' values.
    flipsList = []
    for i in range(flips_per_run):
        if random.randint(0,1) == 1:
            flipsList.append('H')
        else:
            flipsList.append('T')

    # Code that checks if there is a streak of 6 heads or tails in a row.
    for i in range(len(flipsList)):
        currentIndex = nextIndex
        nextIndex = flipsList[i]
        if currentIndex == nextIndex:
            streaksCounter += 1
        else:
            streaksCounter = 0
        if streaksCounter == streakNo:
            numberOfStreaks += 1

print('numberOfStreaks is: ' + str(numberOfStreaks))
print('Chance of streak: %s%%' % (numberOfStreaks / runs))