initial commit - basic TUI blackjack game

src/main.rs

@@ -0,0 +1,93 @@
+use blackjack::card::Card;
+use blackjack::game::{Game, PlayResult, PlayerChoice};
+use blackjack::hand::Hand;
+use std::io;
+use std::io::prelude::*;
+
+fn main() {
+    interactive_play();
+}
+
+fn interactive_play() {
+    let mut bank: u64 = 1_000;
+    let mut game = Game::new().with_decks(6);
+    let mut last_bet: Option<u32> = None;
+
+    loop {
+        println!("\nMoney in the bank: {bank}");
+
+        // Bet checking loop
+        let mut bet: u32;
+        loop {
+            if last_bet.is_some() {
+                print!("Your bet [{}]? ", last_bet.unwrap());
+                io::stdout().flush().unwrap();
+                let input = read_input();
+                if input == "" {
+                    bet = last_bet.unwrap();
+                } else {
+                    bet = input.parse().unwrap();
+                }
+            } else {
+                print!("Your bet? ");
+                io::stdout().flush().unwrap();
+                bet = read_input().parse().unwrap();
+            }
+            if bet as u64 <= bank {
+                break;
+            } else {
+                println!("You don't have enough money!\n");
+            }
+        }
+
+        bank -= bet as u64;
+        last_bet = Some(bet);
+        println!();
+
+        let result = game.play(bet, interactive_decision);
+        let dealer_hand = Hand::from(result.dealer_cards);
+        let player_hand = Hand::from(result.player_cards);
+        println!("Dealer's hand: {} = {}", dealer_hand, dealer_hand.value());
+        println!("Your hand: {} = {}", player_hand, player_hand.value());
+
+        match result.result {
+            PlayResult::Win => println!("You won!"),
+            PlayResult::Blackjack => println!("Blackjack!"),
+            PlayResult::Lose => println!("You lost"),
+            PlayResult::Push => println!("Push"),
+            PlayResult::DealerBlackjack => println!("Dealer got blackjack"),
+            PlayResult::Bust => println!("You busted"),
+        }
+
+        bank += result.player_winnings;
+    }
+}
+
+fn interactive_decision(hand: &Hand, dealer_showing: &Card) -> PlayerChoice {
+    println!("\nDealer showing: {dealer_showing}");
+    println!("Your hand: {hand}\n");
+
+    if hand.value() == 21 {
+        println!("You have 21, standing.");
+        return PlayerChoice::Stand;
+    }
+
+    let choice: PlayerChoice;
+    loop {
+        print!("(h)it or (s)tand? ");
+        io::stdout().flush().unwrap();
+        choice = match read_input().to_lowercase().as_ref() {
+            "h" => PlayerChoice::Hit,
+            "s" => PlayerChoice::Stand,
+            _ => continue,
+        };
+        break;
+    }
+    choice
+}
+
+fn read_input() -> String {
+    let mut buf = String::new();
+    io::stdin().read_line(&mut buf).unwrap();
+    buf.trim().to_owned()
+}