added split

src/blackjack.rs

@@ -64,6 +64,7 @@ pub enum PlayMoves {
     Hit,
     Stand,
     DoubleDown,
+    Split,
     Deal(usize),
 }
 
@@ -130,6 +131,51 @@ impl BlackjackGame {
                     }
                 };
             }
+            (GameState::PlayerTurn(player_index, hand_index), PlayMoves::Split) => {
+                let Some(player) = self.players.get_mut(*player_index) else {
+                    // Player does not exists
+                    return false;
+                };
+
+                let Some(hand) = player.hands.get_mut(*hand_index) else {
+                    // Hand does not exist
+                    return false;
+                };
+
+                if hand.state != HandState::Playing {
+                    // Hand is not playing
+                    return false;
+                }
+
+                if hand.hand.count() != 2 {
+                    // Can only split with 2 cards
+                    return false;
+                }
+
+                if let Some(card_0) = hand.hand.get_card(0) {
+                    if let Some(card_1) = hand.hand.get_card(1) {
+                        if card_0.index.get_blackjack_value(true)
+                            != card_1.index.get_blackjack_value(true)
+                        {
+                            // Cards are not the same value
+                            return false;
+                        }
+
+                        // Split the hands
+
+                        let mut new_hand = PlayingHand::new();
+
+                        // Add card from the current hand and a card from the shoe
+                        new_hand.hand.add_card(hand.hand.pop_card().unwrap());
+                        new_hand.hand.add_card(self.shoe.pop_card().unwrap());
+
+                        // Add card to current hand
+                        hand.hand.add_card(self.shoe.pop_card().unwrap());
+
+                        player.hands.push(new_hand);
+                    }
+                }
+            }
             (GameState::PlayerTurn(player_index, hand_index), PlayMoves::DoubleDown) => {
                 let Some(player) = self.players.get_mut(*player_index) else {
                     // Player does not exists
@@ -184,20 +230,19 @@ impl BlackjackGame {
             }
             (GameState::Over, PlayMoves::Deal(player_count))
             | (GameState::Starting, PlayMoves::Deal(player_count)) => {
-
                 // Create players
-                for _ in 0..player_count{
+                for _ in 0..player_count {
                     self.players.push(Player::new());
                 }
 
                 // Create one hand for the players
-                for player in self.players.iter_mut(){
+                for player in self.players.iter_mut() {
                     player.hands.push(PlayingHand::new());
                 }
 
                 // Add one card to each hand the players have
-                for player in self.players.iter_mut(){
-                    for hand in player.hands.iter_mut(){
+                for player in self.players.iter_mut() {
+                    for hand in player.hands.iter_mut() {
                         hand.hand.add_card(self.shoe.pop_card().unwrap());
                     }
                 }
@@ -206,8 +251,8 @@ impl BlackjackGame {
                 self.dealer_hand.add_card(self.shoe.pop_card().unwrap());
 
                 // Add the 2nd card to the players hand
-                for player in self.players.iter_mut(){
-                    for hand in player.hands.iter_mut(){
+                for player in self.players.iter_mut() {
+                    for hand in player.hands.iter_mut() {
                         hand.hand.add_card(self.shoe.pop_card().unwrap());
 
                         if hand.hand.is_backjack() {
@@ -233,7 +278,7 @@ impl BlackjackGame {
             self.dealer_turn();
         }
 
-        return true;
+        true
     }
 
     fn dealer_turn(&mut self) {
@@ -278,13 +323,12 @@ impl BlackjackGame {
             }
 
             // Get next valid player
-            if let Some(next_hand) = self.players.iter().enumerate().find_map(|p| {
-                if let Some(h) = p.1.next_playing_hand(){
-                    Some((p.0,h))
-                }else{
-                    None
-                }
-            }) {
+            if let Some(next_hand) = self
+                .players
+                .iter()
+                .enumerate()
+                .find_map(|p| p.1.next_playing_hand().map(|h| (p.0, h)))
+            {
                 return Some((next_hand.0, next_hand.1));
             }
         }

src/console_blackjack.rs

@@ -7,13 +7,13 @@ pub fn play() -> Result<(), Box<dyn std::error::Error>> {
 
     loop {
         match game.get_state() {
-            GameState::PlayerTurn(player_index,_) => {
+            GameState::PlayerTurn(player_index, _) => {
                 print_full_state(&game);
                 let play_move = get_move(*player_index)?;
-                if !game.play(play_move){
+                if !game.play(play_move) {
                     println!("You can't do that");
                 }
-            },
+            }
             GameState::Over => {
                 print_full_state(&game);
                 println!("Game over");
@@ -21,14 +21,14 @@ pub fn play() -> Result<(), Box<dyn std::error::Error>> {
             }
             GameState::Starting => {
                 game.play(PlayMoves::Deal(2));
-            },
+            }
         }
     }
 }
 
 fn get_move(player_index: usize) -> Result<PlayMoves, io::Error> {
     loop {
-        println!("Turn {}: (H)it (S)tand (D)double",player_index);
+        println!("Turn {}: (H)it (S)tand (D)double, S(p)lit", player_index);
         let mut buffer = String::new();
 
         stdin().read_line(&mut buffer)?;
@@ -37,19 +37,30 @@ fn get_move(player_index: usize) -> Result<PlayMoves, io::Error> {
             "h" | "H" => return Ok(PlayMoves::Hit),
             "s" | "S" => return Ok(PlayMoves::Stand),
             "d" | "D" => return Ok(PlayMoves::DoubleDown),
+            "p" | "P" => return Ok(PlayMoves::Split),
             _ => {}
         }
     }
 }
 
 fn print_full_state(game: &BlackjackGame) {
-    println!("Dealer: {} ({})", game.get_dealer_hand(), game.get_dealer_hand().get_blackjack_value());
+    println!(
+        "Dealer: {} ({})",
+        game.get_dealer_hand(),
+        game.get_dealer_hand().get_blackjack_value()
+    );
 
-    for player_index in 0..game.get_player_count(){
+    for player_index in 0..game.get_player_count() {
         let player = game.get_player(player_index).unwrap();
-        println!("Player {}:",player_index);
-        for hand in player.get_hands().iter().enumerate(){
-            println!("{}: {} ({}) - {:?}",hand.0,hand.1.get_hand(),hand.1.get_hand().get_blackjack_value(),hand.1.get_state());
+        println!("Player {}:", player_index);
+        for hand in player.get_hands().iter().enumerate() {
+            println!(
+                "{}: {} ({}) - {:?}",
+                hand.0,
+                hand.1.get_hand(),
+                hand.1.get_hand().get_blackjack_value(),
+                hand.1.get_state()
+            );
         }
     }
 }