Introduction: Zeen

Hello, my name is zeen and today we will be presenting big idea 3. Our topics include 2d arrays, iteration, and lists and dictionaries.

Objectives

Master the concepts of iteration, list, 2d-arrays, Dictionaries, and APIs

Vocab

Here is some vocab during the lesson, you should be familar with them already no need for me to read these out, now I will pass the speaking off to Kush

  • Iteration: A process that repates itself
  • Array: Sometimes called a list, can keep strings and intergers inside it
  • 2D-Array: A collection of data elements arranged in a grid-like structure with rows and columns
  • Mutable: the ability to be changed or modified
  • Key: A Singular identifier that is associated with a certin value

1: 2D Array

Tic Tac Toe:Kush Sirohi

  • What are some examples of 2d Arrays
  • An example of a 2d array is the tic tac toe board game as it is repressented as a 3x3 grid and a multiplication table
  • What is a modern day game that could be classified as a 2D array
  • chess board because of the grid that is given
array = ["Hello", "Hi", "Whats up"]
twoDArray = [["Name", "ID", "Age"], ["Kush", "1", "16"], ["Finn", "2", "16"]]

print(f"This is a normal array: {array}")

print("This is a 2D array")
for row in twoDArray:
    print(row)
This is a normal array: ['Hello', 'Hi', 'Whats up']
This is a 2D array
['Name', 'ID', 'Age']
['Kush', '1', '16']
['Finn', '2', '16']

How I used 2D Arrays (game example)

  • Describe a 2D array in your own words
  • A 2D array is a collection of data that is organized in a grid or matrix-like structure with rows and columns. It is like a table where each cell holds a value or piece of data.
board = [[' ', ' ', ' '],
         [' ', ' ', ' '],
         [' ', ' ', ' ']]
         
# Function to print the current state of the game board
def print_board():
    print("   0   1   2")
    for i in range(3):
        print(i, end='  ')
        for j in range(3):
            print(board[i][j], end=' ')
        print()

# Function to check if a player has won the game
def check_win(player):
    # Check rows for a win
    for i in range(3):
        if board[i][0] == player and board[i][1] == player and board[i][2] == player:
            return True
    # Check columns for a win
    for j in range(3):
        if board[0][j] == player and board[1][j] == player and board[2][j] == player:
            return True
    # Check diagonals for a win
    if board[0][0] == player and board[1][1] == player and board[2][2] == player:
        return True
    if board[0][2] == player and board[1][1] == player and board[2][0] == player:
        return True
    # If no win condition is met, return False
    return False

# Function to check if the game is a tie
def check_tie():
    for i in range(3):
        for j in range(3):
            if board[i][j] == ' ':
                return False
    return True

# Function to play the game
def play_game():
    # Initialize player and turn counter
    player = 'X'
    turns = 0
    # Loop until the game is over
    while True:
        # Print the current state of the board
        print_board()
        # Get the player’s move
        row = int(input(f"{player}'s turn. Enter row (0-2): "))
        col = int(input(f"{player}'s turn. Enter column (0-2): "))
        # Check if the move is valid
        if board[row][col] == ' ':
            board[row][col] = player
            turns += 1
            # Check if the player has won
            if check_win(player):
                print_board()
                print(f"{player} wins!")
                return
            # Check if the game is a tie
            if check_tie():
                print_board()
                print("It's a tie!")
                return
            # Switch players
            player = 'O' if player == 'X' else 'X'
        else:
            print("That space is already taken. Try again.")

# Start the game
play_game()
   0   1   2
0        
1        
2        
   0   1   2
0  X     
1        
2        
   0   1   2
0  X O   
1        
2        
   0   1   2
0  X O   
1  X     
2        
   0   1   2
0  X O   
1  X     
2      O 
   0   1   2
0  X O   
1  X     
2  X   O 
X wins!

2: Iteration

Robot Game:Finn Carpenter- What is the defenition of iteration in your own words

  • Iteration refers to the process of repeating a set of instructions or actions a certain number of times or until a specific condition is met.
times = 0
numbers = [1, 2, 3, 4, 5]

## Loops
for i in range(5):
    print("hi")


while times <= 5:
    print("hello")
    times = times + 1

## Function with a parameters
def print_numbers(x):
    for num in x:
        print(num)

print_numbers(numbers)
hi
hi
hi
hi
hi
hello
hello
hello
hello
hello
hello
1
2
3
4
5

Iteration Game

  • Link to the game
  • Play the levels (only play the first 2 in class)
  • Explain how the game relates to itertation
  • This game relates to iteration because in this game there is repitition of steps being done until a condition is met which is getting the robot to the final spot

How I used iteration (game example)

  • What parts of the code use iteration
  • the for loops and the looper that is used uses iteration
function run() {
    // Read input values from the HTML document and convert them to integers.
    UPinput = parseInt(document.getElementById("up").value);
    DOWNinput = parseInt(document.getElementById("down").value);
    LEFTinput = parseInt(document.getElementById("left").value);
    RIGHTinput = parseInt(document.getElementById("right").value);
    looper = parseInt(document.getElementById("loop").value);

    runner.style.opacity = 0;
    

    // Create an array to hold the movements.
    let movements = [];

    // Push 'up' movements to the array.
    for (let l = 0; l < looper; l++) {
        for (let k = 0; k < UPinput; k++) {
            movements.push(up);
        }

        // Push 'down' movements to the array.
        for (let i = 0; i < DOWNinput; i++) {
            movements.push(down);
        }

        // Push 'left' movements to the array.
        for (let a = 0; a < LEFTinput; a++) {
            movements.push(left);
        }

        // Push 'right' movements to the array.
        for (let c = 0; c < RIGHTinput; c++) {
            movements.push(right);
        }
    }


    // Set the initial index to 0 and execute each movement in sequence with a delay of 800 milliseconds.
    let index = 0;
    let intervalId = setInterval(() => {
        // If the end of the movements array has been reached, stop executing movements.
        if (index >= movements.length) {
            clearInterval(intervalId);
            win(); // Call the win function.
            return;
        }
        movements[index](); // Execute the movement at the current index.
        index++; // Increment the index.
    }, 800);
}

3: List and Dictionaries

Scramble Game:Edwin

List = [1, 2, 3, 4, 5]
Dict = {
    1: "Hi",
    2: "Hello",
    3: "Whats Up"
}

# Why Do I call 0 for the first thing in a list, but 1 for Dict
#

print(List[0])
print(Dict[1])

How I used a dictonary to make a game

Memory Game:James- Link

  • Code

How I used List to make a game

  • Explain which parts of the code use lists
  • the word_list is used for the code and word_list is then called later
  • Explain what list manipulation is happening in that part
  • word_list is called in word where they use a random choice from the word_list, the words are then used for the game
import random

word_list = ["python", "computer", "programming", "algorithm", "database", "function", "variable", "loop", "iteration", "array", "mutable", "insertion", "deletion", "key", "API"]

word = random.choice(word_list)

scrambled_word = "".join(random.sample(word, len(word)))

print(f"Unscramble the following Computer Science Word: {scrambled_word}")

hints = 1
guesses = 1
guess = ""

while guess != word and guesses <= 4:
    guess = input("What's the unscrambled word? ").lower()
    if guess != word:
        print("Sorry, that's not the word. Try again!")
        if guesses == 1:
            guesses += 1
        elif guesses == 2:
            print(f"Hint 1: The first letter of the word is '{word[0]}'")
            guesses += 1
        elif guesses == 3:
            print(f"Hint 2: The second letter of the word is '{word[1]}'")
            guesses += 1
        else:
            print(f"All 4 Guesses have been used, you didn't unscramble the word, the word was {word}")
            guesses += 1
    else:
        print("Congratulations, you unscrambled the word!")

Hacks: Your Score/1

General 0.3

  • Copy this noteboook into your personal fastpages
  • Answer all questions
    • put the question in a new markdown block (so we can grade faster)

New Block with answered questions

1: 2D Array

Tic Tac Toe:Kush Sirohi

  • What are some examples of 2d Arrays
  • An example of a 2d array is the tic tac toe board game as it is repressented as a 3x3 grid and a multiplication table
  • What is a modern day game that could be classified as a 2D array
  • chess board because of the grid that is given

How I used 2D Arrays (game example)

  • Describe a 2D array in your own words
  • A 2D array is a collection of data that is organized in a grid or matrix-like structure with rows and columns. It is like a table where each cell holds a value or piece of data.

2: Iteration

Robot Game:Finn Carpenter- What is the defenition of iteration in your own words

  • Iteration refers to the process of repeating a set of instructions or actions a certain number of times or until a specific condition is met.

Iteration Game

  • Link to the game
  • Play the levels (only play the first 2 in class)
  • Explain how the game relates to itertation
  • This game relates to iteration because in this game there is repitition of steps being done until a condition is met which is getting the robot to the final spot

How I used iteration (game example)

  • What parts of the code use iteration
  • the for loops and the looper that is used uses iteration

How I used List to make a game

  • Explain which parts of the code use lists
  • the word_list is used for the code and word_list is then called later
  • Explain what list manipulation is happening in that part
  • word_list is called in word where they use a random choice from the word_list, the words are then used for the game

Iteration 0.2 (can get up to 0.23)

  • Get to level 5
    • Take ScreenShots of your name inside the box an put them in your ticket

1 2 3 4 5

  • Create a code segment with iteration that does something cool
import time

# Define the text to spin.
text = "SPINNING!"

# Set the delay between frames.
delay = 0.1

# Iterate through each character in the text, shifting the characters to the right by one position on each iteration.
for i in range(len(text)):
    # Clear the console screen.
    print("\033[H\033[J")

    # Create a new text string with the shifted characters.
    shifted_text = " " * i + text[i:] + text[:i]

    # Print the shifted text to the console.
    print(shifted_text)

    # Wait for a short delay before printing the next frame.
    time.sleep(delay)
SPINNING!

 PINNING!S

  INNING!SP

   NNING!SPI

    NING!SPIN

     ING!SPINN

      NG!SPINNI

       G!SPINNIN

        !SPINNING

2D array 0.2 (can get up to 0.23)

  • Explain how the tic tac toe game works

The game is using a 3x3 grid and each cell in the grid is either empty or filled with an "x" or "o" mark. The 2D array is used with the 3 rows and 3 columns to map out where an "x" or "o" could be on the game board.

  • Give 3 Examples of games that can be made from 2D arrays

Sudoku, 2048, chess

List and Dictionaries 0.2 (can get up to 0.23)

  • Explain the differences between Lists and Dictionaries

Lists are used to store ordered collections of values, while dictionaries are used to store collections of key-value pairs. They are both used to store values in different ways and are beneficial for writing a lot of code.

  • Make a code block that manipulates either a list or a dictionary
list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

print("Original list:", list)

list.append(11)
print("List after adding 11:", list)

list.pop(0)
print("List after removing the first element:", list)

list.reverse()
print("List after reversing the order:", list)

list.sort()
print("List after sorting in ascending order:", list)
Original list: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
List after adding 11: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
List after removing the first element: [2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
List after reversing the order: [11, 10, 9, 8, 7, 6, 5, 4, 3, 2]
List after sorting in ascending order: [2, 3, 4, 5, 6, 7, 8, 9, 10, 11]