GAME DESCRIPTION

STEP 1: GENERATING RANDOM SEQUENCE OF 0 AND 1

First write a program which defines the function createSeg(n) that fills n random numbers 0 or 1 in the list seq. Test the program with different n. Use the following template:

Program: [► Online Editor]

from microbit import *
from random import randint
     
def createSeq(n):
   ...
    
seq = []
n = 3
createSeq(n)
print(seq)  

STEP 2: GENERATING RANDOM SEQUENCE OF ARROWS

The functions left() displays a left arrow (image ARROW_E ) for 500 ms and then clears the display. Write this function and test it with a small test program.

Write a similar function right() for the right arrow (image ARROW_W) and modify the function createSeg() so that a 0 in the list displays a left arrow and a 1 displays a right arrow. Test the program with different n.

STEP 3: IMPLEMENTING USER PLAYBACK

Now you implement the user interaction. When the user presses the left button, the number 0 is appended in the list seg2, when the right button is pressed, the number 1 is appended. Use the following template:

n = 3
seg2 = []

while len(seq2) < n:
    if button_a.was_pressed():
        seq2.append(0)
    if button_b.was_pressed():
        seq2.append(1) 
    sleep(10)

sleep(10) prevents the program from wasting processing time in the repeat loop (which makes it hard to break off). Complete the template so that an arrow is shown when a button is  pressed.

Extend the program by comparing the two lists seq and seq2. If they are the same, the playback is correct, otherwise the game is over. To give a user feedback, you can display the images YES or NO..

if seq == seq2:
    display.show(Image.YES)
...

STEP 4: INCREASING THE DIFFICULTY LEVEL

So far, the sequence has still the fixed length 3. Now step you begin the game with n = 2 and increase the length of the sequence by 1, if the answer is correct.

STEP 5: HANDLING END OF GAME

Finish the program by stopping the main loop when the game is over. It is common to use a boolean flag gameOver that is True, when the main loop has to be terminated. Use the following template:

....
n = 2
gameOver = False

while not gameOver:
    seq = []
    seq2 = []
    createSeq(n)
    
    while len(seq2) < n:
        if button_a.was_pressed():
            .....
    
    if seq == seq2:

        ....
        n += 1
    else:
        ....
        gameOver = True
  

It is nice to show the length of the last sequence as a scrolling text (the game score). You can restart the game any time by pressing the reset button.

STEP 6: EXPANDING THE GAME TO OWN IDEAS

You certainly have many ideas on how to customize or enhance the game.

Suggestion:
Modify the game to remember sound sequences. Check out the chapter Sound for how to play tones.