Much work fleshing out cards and hands.

src/card.rs

@@ -0,0 +1,100 @@
+use rand::Rng;
+use std::fmt;
+
+#[derive(Clone, Copy, Eq, PartialEq)]
+pub enum CardSuit {
+    Diamonds,
+    Clubs,
+    Hearts,
+    Spades,
+}
+
+#[derive(Debug, Clone, Copy, Eq, PartialEq, PartialOrd, Ord, Hash)]
+pub enum CardValue {
+    Two = 2,
+    Three,
+    Four,
+    Five,
+    Six,
+    Seven,
+    Eight,
+    Nine,
+    Ten,
+    Jack,
+    Queen,
+    King,
+    Ace,
+}
+
+#[derive(PartialEq, Eq)]
+pub struct PlayingCard {
+    pub value: CardValue,
+    pub suit: CardSuit,
+}
+
+impl Ord for PlayingCard {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.value.cmp(&other.value)
+    }
+}
+
+impl PartialOrd for PlayingCard {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        self.value.partial_cmp(&other.value)
+    }
+}
+
+impl fmt::Display for PlayingCard {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        let suit = match self.suit {
+            CardSuit::Clubs => "♣",
+            CardSuit::Diamonds => "♦",
+            CardSuit::Hearts => "♥",
+            CardSuit::Spades => "♠",
+        };
+
+        write!(f, "{:?}{}", self.value, suit)
+    }
+}
+
+pub fn draw_card(deck: &mut Vec<PlayingCard>) -> PlayingCard {
+    let num = rand::thread_rng().gen_range(0..deck.len());
+    let card = deck.remove(num);
+
+    card
+}
+
+pub fn create_deck() -> Vec<PlayingCard> {
+    let mut deck: Vec<PlayingCard> = vec![];
+    let suits = [
+        CardSuit::Diamonds,
+        CardSuit::Clubs,
+        CardSuit::Hearts,
+        CardSuit::Spades,
+    ];
+
+    let values = [
+        CardValue::Two,
+        CardValue::Three,
+        CardValue::Four,
+        CardValue::Five,
+        CardValue::Six,
+        CardValue::Seven,
+        CardValue::Eight,
+        CardValue::Nine,
+        CardValue::Ten,
+        CardValue::Jack,
+        CardValue::Queen,
+        CardValue::King,
+        CardValue::Ace,
+    ];
+
+    for s in suits {
+        for i in values {
+            let card = PlayingCard { suit: s, value: i };
+            deck.insert(0, card);
+        }
+    }
+
+    deck
+}