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Ghazal Abdulraheem
Ghazal Abdulraheem

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Build Treasure Island

#python #codenewbie #beginners #tutorial

Today’s lesson was one of the most exciting lessons so far because we moved deeper into decision-making in Python by learning how to control the flow of our program using conditional statements.

The final project for today was called Treasure Island, a simple adventure game where users make choices that determine whether they win or lose the game. It was a fun project because it made programming feel more interactive and game-like.

The topics covered in today’s lesson include:

  1. Introducing Modulo
  2. Nested if Statements and elif Statements
  3. BMI Calculator with Interpretations
  4. Multiple if Statements
  5. Pizza Order Practice
  6. Logical Operators
  7. Final Project — Treasure Island

Let’s break them down one after the other.

Introducing Modulo

The modulo operator % is used to return the remainder after dividing two numbers.

Example:

print(10 % 3)
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Output:

1
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Why?

Because:

10 / 3 = 3 remainder 1
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Modulo is commonly used when checking:

  • Even and odd numbers
  • Divisibility
  • Counters and loops

Example:

number = 8

if number % 2 == 0:
    print("Even number")
else:
    print("Odd number")
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Output:

Even number
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Nested if Statements and elif Statements

An if statement allows us to make decisions in Python.

Example:

age = 18

if age >= 18:
    print("You can vote")
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Sometimes we want to check multiple conditions. That is where elif comes in.

Example:

score = 75

if score >= 90:
    print("Excellent")
elif score >= 70:
    print("Good")
else:
    print("Try again")
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Output:

Good
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A nested if statement means placing one if statement inside another if statement.

Example:

age = 20
has_id = True

if age >= 18:
    if has_id:
        print("Access granted")
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Nested conditions are useful when building games, login systems, and real-world applications.

Mini Project — BMI Calculator with Interpretations

In today’s lesson, we also built a BMI calculator that not only calculates BMI but also interprets the result.

BMI stands for Body Mass Index.

The formula is:

BMI = \frac{weight}{height^2}

Example:

weight = 70
height = 1.75

bmi = weight / (height ** 2)

print(bmi)
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Output:

22.857142857142858
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We can also interpret the result using conditional statements.

if bmi < 18.5:
    print("Underweight")
elif bmi < 25:
    print("Normal weight")
else:
    print("Overweight")
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Multiple if Statements

Unlike elif, multiple if statements allow Python to check every condition independently.

Example:

age = 25

if age > 18:
    print("Adult")

if age > 21:
    print("Can enter club")
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Output:

Adult
Can enter club
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Both conditions were checked because they are independent of each other.

Pizza Order Practice

Another fun exercise from today’s lesson was building a pizza order program.

The program calculates the total cost of pizza based on:

  • Pizza size
  • Extra toppings
  • Cheese addition

Example:

bill = 0

size = "M"

if size == "S":
    bill += 15
elif size == "M":
    bill += 20
else:
    bill += 25

print(bill)
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Output:

20
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This exercise helped me better understand how conditions work together in real-life scenarios.

Logical Operators

Logical operators are used to combine multiple conditions together.

Python has three major logical operators:

  1. and
  2. or
  3. not

Example using and:

age = 20
has_id = True

if age >= 18 and has_id:
    print("Access granted")
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The condition only becomes True if both statements are true.

Example using or:

weather = "Rainy"

if weather == "Rainy" or weather == "Cloudy":
    print("Take umbrella")
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Example using not:

is_logged_in = False

if not is_logged_in:
    print("Please login")
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Logical operators are very important when building authentication systems, games, and applications with multiple conditions.

Final Project — Treasure Island

The final project for today was called Treasure Island.

The goal of the game is simple:

  • Make the correct choices
  • Avoid losing
  • Find the treasure

This project combined everything learned today:

  • if statements
  • elif
  • Nested conditions
  • User input
  • Decision-making

Here is the complete code for the project:

print('''
 ,adPPYb,d8 ,adPPYYba, 88,dPYba,,adPYba,   ,adPPYba, ,adPPYba,
a8"    `Y88 ""     `Y8 88P'   "88"    "8a a8P_____88 I8[    ""
8b       88 ,adPPPPP88 88      88      88 8PP"""""""  `"Y8ba,
"8a,   ,d88 88,    ,88 88      88      88 "8b,   ,aa aa    ]8I
 `"YbbdP"Y8 `"8bbdP"Y8 88      88      88  `"Ybbd8"' `"YbbdP"'
 aa,    ,88
  "Y8bbdP"                                        ''')

print("Welcome to Treasure Island!")
print("Your mission is to find the treasure")

direction = input("Left or right? ")

if direction == "Right":
    print("Game Over!")
elif direction == "Left":
    step2 = input("Swim or Wait? ")

    if step2 == "Swim":
        print("Game Over!")

    elif step2 == "Wait":
        step3 = input("Which door? Red, Yellow, or Blue? ")

        if step3 == "Red":
            print("Game Over")

        elif step3 == "Blue":
            print("Game Over")

        elif step3 == "Yellow":
            print("You win!")
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One thing I really enjoyed about this project was how a simple program could become interactive just by using conditions and user inputs.

This lesson made me understand how powerful decision-making is in programming because almost every real-world application depends on conditions to make decisions.

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