Lesson 5.1: Intro to Games in Python

Today’s Goals

• See how Python can be used to build simple text-based games
• Review input(), print(), and random
• Modify a number guessing game

Warm-Up Question

• What’s your favorite game?
• What makes it fun?
  (Call on 2–3 students)

A Game Is Just…

• A loop (repeated play)
• Input from the player
• Output that reacts
• Rules that control what happens

First Example: Number Guessing

import random
number = random.randint(1, 10)
guess = int(input("Guess a number 1–10: "))
if guess == number:
    print("You got it!")
else:
    print("Nope, it was", number)

Class Practice

• Run the code on your computer
• Play the game a few times
• What happens if you enter text instead of a number?

Adding Tries

import random
number = random.randint(1, 10)
for i in range(3):
    guess = int(input("Guess: "))
    if guess == number:
        print("Correct!")
        break
    else:
        print("Wrong!")

Discussion

• Why is the loop useful here?
• What happens if the user guesses wrong every time?

Student Challenge

• Add a “You lost!” message if the player never guesses correctly.
• Bonus: Let the user choose the range of numbers.

Wrap-Up

• Games are just code with input, loops, and rules
• Next time: We’ll start building Hangman!