add 8, 11, 12

src/assignments/assignment12/card.rs

@@ -0,0 +1,52 @@
+//! Flipping card game.
+//!
+//! For this assignment, you have to see `play` function in `card_grade.rs` file.
+//! Multiple threads will be created and they will run as enemy bots(`bot_threads`).
+//! Strategy of the enemy bots is implemented in the closure of the `thread::spawn` function.
+//! Your goal is to beat them so that there are more white cards than blue cards in the ground.
+//! Write your strategy in the `flip_card_strategy` function of the `Player` struct.
+//!
+//! Have fun!
+
+use std::{
+    collections::HashMap,
+    sync::{Arc, Mutex},
+};
+
+/// Color represents the color of the card.
+/// The color of a card can be either Blue or White.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum Color {
+    /// blue
+    Blue,
+
+    /// white
+    White,
+}
+
+/// Player struct represents a player in the card game.
+/// Each player has a memory which is represented as a HashMap.
+#[derive(Debug)]
+pub struct Player {
+    memory: HashMap<isize, isize>,
+}
+
+impl Default for Player {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Player {
+    /// Creates a new player with an empty memory.
+    pub fn new() -> Self {
+        Self {
+            memory: HashMap::new(),
+        }
+    }
+
+    /// This function should return the index of the card to flip and the color to change to.
+    pub fn flip_card_strategy(&mut self) -> (usize, Color) {
+        todo!()
+    }
+}