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Great job! You've reached another new level! In the previous level you've learned to use multiple lines of code in an if or repeat command. But you can't yet combine the two... Good news! In this level you will be allowed to put an if inside an if, or inside a repeat command. Putting a block of code inside another block of code is called nesting.

answer = ask 'Are you ready to learn something new?'
if answer is yes
    print 'Great! You can learn to use the repeat command in the if command!'
    print 'Hooray!'
    print 'Hooray!'
    print 'Hooray!'
else
    print 'Maybe you should practice some more in the previous level'

Great job! You've reached another new level! In the previous level you've learned to use multiple lines of code in an if or repeat command. But you can't yet combine the two...

Good news! In this level you will be allowed to put an if inside an if, repeat inside a repeat command and in each other. Give it a try!

repeat 3 times
    order = ask 'What would you like to order?'
    if order is pizza
        print 'Yammie'
    else
        print 'pizza is better!'

In this level you can also put an if command inside another if command.

continue = ask 'Do you want to continue?'
if continue = yes
    sure = ask 'Are you sure?'
    if sure is yes
        print 'We will continue'
    else
        print 'You are not sure'
else
    print 'You do not want to continue'

In this level you can program the whole rock, paper, scissors game by nesting the if commands.

Exercise

Can you finish the code? The program must tell who has won for every combination.

Extra Want to play more than one game? Expand the code so that you can play multiple rounds. You can even use an ask to ask the user how many rounds they want to play.

choices = rock, paper, scissors
your_choice is ask 'What do you choose?'
print 'You choose ' your_choice
computer_choice is choices at random
print 'The computer chooses ' computer_choice
if computer_choice is your_choice
    print 'Tie'
if computer_choice is rock
    if your_choice is paper
        print 'You win!'
    if your_choice is scissors
        print 'You lose!'
# finish this code

In this level you can use if and repeat commands inside other if and repeat commands. This gives you many options and really helps you to make your story interactive.

Exercise 1

Finish the code so the if works correctly.

Exercise 2

Add an if and else for the part of the story where Robin goes home too.

Exercise 3

Go back to your level 8 story and use at least two ifs inside another if.

print 'Robin is walking downtown'
location = ask 'Is Robin going into a shop, or does she go home?'
if location is shop
    print 'She enters the shop.'
    print 'Robin sees an interesting looking book'
    book = ask 'Does Robin buy the book?'
    if book is yes
    _ print 'Robin buys the book and goes home'
    _ else
    _ print 'Robin leaves the shop and goes home'
else
    print 'Robin goes home'

In a previous level, you've created a calculator. In this level, you can expand that code so it asks multiple questions.

Exercise 1

Can you finish line 10 to get the code to work?

Exercise 2

Give the player feedback when they enter an answer, like print 'Correct!' or print 'Wrong! The correct answer is ' correct_answer.

score = 0
repeat 10 times
    numbers = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
    number_1 = numbers at random
    number_2 = numbers at random
    correct_answer = number_1 * number_2
    print 'What is ' number_1 ' times ' number_2 '?'
    answer = ask 'Type your answer here...'
    print 'Your answer is ' answer
    if _ is _
        score = score + 1
print 'Great job! Your score is... ' score ' out of 10!'

From this level on you can - among other things - use a repeat command inside a repeat command. That makes songs like 'Happy birthday' even shorter!

Exercise

Finish the song!

first_time = yes
repeat 2 times
    repeat 2 times
        play C
    play D
    play C
    if first_time is yes
        play F
        play E
        first_time is no
    else
        _

In this level you can use nesting to make your restaurant more realistic and more fun!

Exercise

The indentation was removed in the example code. Can you figure out how much indentation each line needs in order for the code to work properly? If the customer orders pizza, Hedy shouldn't ask what sauce the customer wants.

Extra A restaurant does not stock all sauces. Make a list of available sauces and give a reply with each order whether you sell it.
Extra Pizzas have toppings. Ask customers what they want.
Extra Do customers want a drink? Ask them too!

print 'Welcome to Restaurant Chez Hedy!'
people = ask 'How many people will be joining us today?'
print 'Great!'
price = 0
repeat people times
_ food = ask 'What would you like to order?'
_ print food
_ if food is fries
_ price = price + 3
_ sauce = ask 'What kind of sauce would you like with your fries?'
_ if sauce is no
_ print 'no sauce'
_ else
_ price = price + 1
_ print 'with ' sauce
_ if food is pizza
_ price = price + 4
print 'That will be ' price ' dollar'
print 'Enjoy your meal!'

In this level you can use nesting, which allows you to make the haunted house even more interactive!

Exercise

Now it's very hard to win this game, can you make it easier to win? Change your code so it only has one wrong door and two correct doors instead of one correct door and two wrong ones? Tip: This means changing the variable correct_door into wrong_door, and switching the if and else code. And of course you may also change the story and make it your own. Change the monsters or make it a happy game show where you get a gift!

print 'Escape from the Haunted House!'
player = alive
doors = 1, 2, 3
monsters = zombie, vampire, giant spider
repeat 3 times
    if player is alive
        correct_door is doors at random
        print 'There are 3 doors in front of you...'
        chosen_door = ask 'Which door do you choose?'
        if chosen_door is correct_door
            print 'No monsters here!'
        else
            print 'You are eaten by a ' monsters at random
            player = dead
    else
        print 'GAME OVER'
if player is alive
    print 'Great! You survived!'

Now that you know how to combine statements, you can create a touch type tool with pressed.

Exercise

Finish the code. Each time a random letter should be chosen, which you have to press. You get a point for a correct press, and two points deduction for a wrong press. Extra Clear the screen after each letter, and show the user how many points they have scored.

points = 0
letters = a, b, c, d, e
repeat 10 times
    letter = _ _ _
    print 'Press the letter ' letter
    if letter is pressed
    _
    _
    _

Now that we can use a repeat inside a repeat, we can create more complex figures.

Exercise 1

This code creates three black triangles, change that into five pink squares.

Extra Create a figure of your own choosing consisting of at least two different shapes types.

color black
repeat 3 times
    repeat 3 times
        forward 10
        turn 120
    color white
    forward 50
    color black

Exercise

Recreate the drawings with the turtle!

Extra The number in brackets indicates in how many lines of code this figure can be drawn. Can you do it in the same amount of lines?

Extra Give the player a choice which country they would like to see the flag of.

Cross (7)

Randomly colored nested squares (8)

Flags

Hint for the nested squares:

colors = red, blue, orange, yellow, pink, purple, green, brown, black
distance = 120
repeat 5 times
_

Hint for the flags:

country = ask 'which country would you like to see the flag of?'
if country is 'the Netherlands'
    color_1 = red
    color_2 = white
    color_3 = blue

Exercise

Debug this code. Good luck!

Warning! This code needs to be debugged!

print 'Welcome to our sandwich shop'
amount 'How many sandwiches would you like to buy?'
repeat amount times
ask is ask 'What kind or bread would you like your sandwich to be?'
types_of_bread is white, wheat, rye, garlic, gluten free
if chosen_bread in types_of_bread
print 'Lovely!'
else
'I'm sorry we don't sell that'
topping is ask 'What kind of topping would you like?'
sauce is ask 'What kind of sauce would you like?'
print One chosen_bread with topping and sauce.
price = amount * 6
print 'That will be 'price dollar' please'

Latest update: 2025 May 02(809e63)

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