335 lines
8.6 KiB
Rust
335 lines
8.6 KiB
Rust
//! Hangman Game with Threading
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//!
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//! A classic hangman game where game logic runs in a separate thread
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//! while the render loop stays responsive. The user can make guesses
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//! while turtle animations play smoothly.
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//!
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//! Run with: `cargo run --package turtle-lib --example hangman_threaded`
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use dialog::DialogBox;
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use std::thread;
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use turtle_lib::*;
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// Word list for the game
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const WORDS: &[&str] = &[
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"turtle",
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"graphics",
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"threading",
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"rust",
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"animation",
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"crossbeam",
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"channel",
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"synchronization",
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"parallel",
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"concurrent",
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];
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#[macroquad::main("Hangman")]
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async fn main() {
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let mut app = TurtleApp::new();
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// Create three turtles: hangman, lines, and smiley
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let hangman_tx = app.create_turtle_channel(100);
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let lines_tx = app.create_turtle_channel(100);
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let smiley_tx = app.create_turtle_channel(100);
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// Spawn game logic thread
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let game_thread = thread::spawn({
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let hangman = hangman_tx.clone();
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let lines = lines_tx.clone();
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let smiley = smiley_tx.clone();
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move || {
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run_game_logic(hangman, lines, smiley);
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}
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});
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// Main render loop
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loop {
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// Check for quit
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if macroquad::prelude::is_key_pressed(macroquad::prelude::KeyCode::Escape)
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|| macroquad::prelude::is_key_pressed(macroquad::prelude::KeyCode::Q)
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{
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break;
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}
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// Clear and render
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macroquad::prelude::clear_background(WHITE);
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app.process_commands();
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app.update();
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app.render();
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macroquad::prelude::next_frame().await;
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}
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// Wait for game thread to finish
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game_thread.join().ok();
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println!("Game ended. Goodbye!");
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}
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fn run_game_logic(
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hangman_tx: TurtleCommandSender,
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lines_tx: TurtleCommandSender,
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smiley_tx: TurtleCommandSender,
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) {
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let secret = choose_word();
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println!("Starting hangman game...");
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println!("Secret word has {} letters", secret.len());
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// hide the smiley at start
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{
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let mut plan = create_turtle_plan();
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plan.hide();
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smiley_tx.send(plan.build()).ok();
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}
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draw_smiley(&smiley_tx, true);
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// Setup: Position hangman turtle and draw base (hill)
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{
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let mut plan = create_turtle_plan();
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setup_hangman(&mut plan);
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draw_hill(&mut plan);
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hangman_tx.send(plan.build()).ok();
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}
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let mut all_guesses = String::new();
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let mut wrong_guesses = 0;
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const MAX_WRONG: usize = 8; // 8 body parts after base
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// Draw current state of lines
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draw_lines_state(&lines_tx, &secret, &all_guesses);
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// Main game loop
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loop {
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// Check if won
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if secret.chars().all(|c| all_guesses.contains(c)) {
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draw_smiley(&smiley_tx, true);
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break;
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}
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// Check if lost
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if wrong_guesses >= MAX_WRONG {
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draw_smiley(&smiley_tx, false);
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break;
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}
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// Ask for guess
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let guess = ask_for_letter();
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let guess_lower = guess.to_lowercase();
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all_guesses.push_str(&guess_lower);
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if secret.contains(&guess_lower) {
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println!("✓ Correct! '{}' is in the word", guess_lower);
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// Draw current state of lines
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draw_lines_state(&lines_tx, &secret, &all_guesses);
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} else {
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println!("✗ Wrong! '{}' is NOT in the word", guess_lower);
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wrong_guesses += 1;
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// Draw next hangman step
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draw_hangman_step(&hangman_tx, wrong_guesses);
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println!("Wrong guesses: {}/{}", wrong_guesses, MAX_WRONG);
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}
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}
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}
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fn choose_word() -> &'static str {
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WORDS[(std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap_or_default()
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.as_secs() as usize)
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% WORDS.len()]
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}
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fn ask_for_letter() -> String {
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loop {
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match dialog::Input::new("Enter a single letter to guess")
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.title("Hangman - Letter Guess")
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.show()
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{
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Ok(Some(input)) => {
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let trimmed = input.trim();
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if trimmed.len() == 1 && trimmed.chars().all(|c| c.is_alphabetic()) {
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return trimmed.to_lowercase();
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} else {
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// Invalid input, show error and retry
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let _ = dialog::Message::new("Please enter exactly one letter (a-z).")
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.title("Invalid Input")
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.show();
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// Loop continues to ask again
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}
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}
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Ok(None) => {
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// User cancelled - ask again
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continue;
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}
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Err(e) => {
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// Dialog system failed - exit game
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eprintln!("Dialog error: {}", e);
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std::process::exit(1);
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}
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}
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}
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}
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fn setup_hangman(plan: &mut TurtlePlan) {
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plan.hide()
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.set_speed(1001) // Instant mode
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.set_pen_width(3.0) // Thicker lines for visibility
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.set_pen_color(BLACK)
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.pen_up()
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.go_to(vec2(-100.0, -100.0)) // More centered position
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.pen_down();
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}
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fn draw_hangman_step(tx: &TurtleCommandSender, step: usize) {
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let mut plan = create_turtle_plan();
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plan.set_speed(1001); // Instant mode
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match step {
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1 => draw_mast(&mut plan),
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2 => draw_bar(&mut plan),
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3 => draw_support(&mut plan),
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4 => draw_rope(&mut plan),
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5 => draw_head(&mut plan),
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6 => draw_arms(&mut plan),
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7 => draw_body(&mut plan),
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8 => draw_legs(&mut plan),
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_ => {}
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}
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tx.send(plan.build()).ok();
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}
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// Hangman drawing functions (scaled down for visibility)
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fn draw_hill(plan: &mut TurtlePlan) {
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plan.left(135.0)
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.circle_left(100.0, 90.0, 36)
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.circle_left(100.0, -45.0, 36)
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.right(90.0);
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}
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fn draw_mast(plan: &mut TurtlePlan) {
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plan.forward(150.0);
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}
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fn draw_bar(plan: &mut TurtlePlan) {
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plan.right(90.0).forward(75.0);
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}
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fn draw_support(plan: &mut TurtlePlan) {
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plan.backward(50.0)
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.right(135.0)
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.forward(35.355)
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.backward(35.355)
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.left(135.0)
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.forward(50.0);
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}
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fn draw_rope(plan: &mut TurtlePlan) {
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plan.set_pen_width(2.0).right(90.0).forward(35.0);
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}
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fn draw_head(plan: &mut TurtlePlan) {
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plan.left(90.0).circle_right(15.0, 540.0, 72);
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}
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fn draw_arms(plan: &mut TurtlePlan) {
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plan.left(60.0)
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.forward(50.0)
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.backward(50.0)
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.left(60.0)
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.forward(50.0)
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.backward(50.0)
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.right(30.0);
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}
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fn draw_body(plan: &mut TurtlePlan) {
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plan.forward(50.0);
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}
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fn draw_legs(plan: &mut TurtlePlan) {
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plan.right(20.0)
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.forward(60.0)
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.backward(60.0)
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.left(40.0)
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.forward(60.0)
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.backward(60.0)
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.right(20.0);
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}
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fn draw_lines_state(tx: &TurtleCommandSender, secret: &str, all_guesses: &str) {
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let mut plan = create_turtle_plan();
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plan.reset()
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//.hide()
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.set_pen_color(BLACK)
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.set_pen_width(2.0)
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.pen_up()
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.go_to(vec2(-100.0, 100.0))
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.pen_down();
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// Draw underscores/circles for each letter with text labels
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for letter in secret.chars() {
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if all_guesses.contains(letter) {
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// Draw green circle for revealed letter
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plan.set_pen_color(GREEN)
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.write_text(&letter.to_uppercase().to_string(), 32u16)
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.forward(15.0);
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} else {
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// Draw black underscore
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plan.set_pen_color(BLACK).forward(15.0);
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}
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plan.pen_up().forward(15.0).pen_down();
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}
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tx.send(plan.build()).ok();
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}
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fn draw_smiley(tx: &TurtleCommandSender, won: bool) {
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let mut plan = create_turtle_plan();
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plan.reset()
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.hide()
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.set_speed(1001) // Instant mode
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.pen_up()
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.go_to(vec2(100.0, -100.0)) // Right side of screen
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.pen_down()
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.set_pen_color(if won { GREEN } else { RED })
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.left(90.);
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// Face
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plan.circle_right(50.0, 360.0, 72);
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// Left eye
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plan.pen_up()
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.forward(10.0)
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.right(90.0)
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.forward(27.5)
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.pen_down()
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.circle_left(3.0, 360.0, 24);
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// Right eye
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plan.pen_up()
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.forward(45.0)
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.pen_down()
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.circle_left(3.0, 360.0, 24);
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// Mouth
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plan.pen_up()
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.backward(42.5)
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.left(90.0)
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.backward(30.0)
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.right(90.0)
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.pen_down();
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if won {
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// Smile
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plan.right(45.0).circle_left(32.5, 90.0, 36);
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} else {
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// Frown
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plan.left(45.0).circle_right(32.5, 90.0, 36);
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}
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tx.send(plan.build()).ok();
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}
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