Greetings, code sorcerers! On Day 10 of my #100DaysOfCode Rust saga, I summoned a magical project – a number-guessing game! 🧙♂️✨ Let's unravel the secrets and unveil the new spells I've learned.
The Ritual of Randomness 🎲
In the heart of the code incantation lies the mysterious rand crate, a tool for conjuring random numbers. The gen_range method, like a wand, whispers enchantments to summon a number between 1 and 100.
let random_number: u8 = rand::thread_rng().gen_range(1..=100);
Dancing with User Input 💃🕺
The mystical dance with user input begins! A loop enchants the user to guess the lucky number, showcasing the art of spellbinding user interactions.
let mut user_input = String::new();
io::stdin()
.read_line(&mut user_input)
.expect("Failed to read the input, please try again");
Weaving the Threads of Logic 🧵
The incantation of logic ensures that only valid guesses are considered. A match spell checks the user's input, transforming mistakes into graceful prompts.
match user_input.trim().parse() {
Ok(num) if num >= 1 && num <= 100 => num,
_ => {
println!("Please enter a valid number between 1 and 100!");
continue;
}
};
Dueling with the Enigmatic Ordering 🤺
The duel with Ordering unfolds – a mystical confrontation between user input and the elusive lucky number.
match user_input.cmp(&random_number) {
Ordering::Less => println!("The lucky number is greater than you have entered!"),
Ordering::Greater => println!("The lucky number is smaller than you have entered!"),
Ordering::Equal => {
// Victory!
println!("You guessed the correct number in {} guesses", no_of_guesses);
break;
}
}
Final Code
use rand::Rng;
use std::cmp::Ordering;
use std::io;
use std::time::Duration;
fn main() {
let random_number: u8 = rand::thread_rng().gen_range(1..=100);
let mut no_of_guesses: u8 = 0;
loop {
let mut user_input = String::new();
no_of_guesses += 1;
println!("Guess the lucky number between 1 and 100...");
io::stdin()
.read_line(&mut user_input)
.expect("Failed to read the input, please try again");
let user_input: u8 = match user_input.trim().parse() {
Ok(num) if num >= 1 && num <= 100 => num,
_ => {
println!("Please enter a valid number between 1 and 100!");
continue;
}
};
match user_input.cmp(&random_number) {
Ordering::Less => println!("The lucky number is greater than you have entered!"),
Ordering::Greater => println!("The lucky number is smaller than you have entered!"),
Ordering::Equal => {
println!("The lucky number is {}", random_number);
println!(
"You guessed the correct number in {} guesses",
no_of_guesses
);
break;
}
}
}
std::thread::sleep(Duration::from_secs(2));
}
A Lesson in Perpetual Learning 📘
As the project concludes, I reflect on the undeniable truth in the realm of coding – learning is a journey with endless paths. There are myriad ways to achieve the same result, each unveiling a new facet of the magical world of programming.
Embrace the magic, my fellow sorcerers! 🚀💻✨
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