add RandomAgent

src/agent.rs

@@ -1,4 +1,8 @@
-use crate::{board::Board, piece::Piece};
+use crate::{
+    board::{Board, BOARD_SIZE},
+    piece::Piece,
+};
+use rand::prelude::*;
 use std::io;
 use std::io::prelude::*;
 
@@ -48,3 +52,34 @@ impl ManualAgent {
         Self { color }
     }
 }
+
+pub struct RandomAgent {
+    color: Piece,
+}
+
+impl Agent for RandomAgent {
+    fn next_move(&mut self, board: &Board) -> Option<(usize, usize)> {
+        (0..BOARD_SIZE)
+            .flat_map(|i| {
+                (0..BOARD_SIZE)
+                    .map(|j| (i, j))
+                    .collect::<Vec<(usize, usize)>>()
+            })
+            .flat_map(|(i, j)| board.what_if(i, j, self.color).map(|_| (i, j)))
+            .choose(&mut rand::rng())
+    }
+
+    fn name(&self) -> &'static str {
+        "Random Agent"
+    }
+
+    fn color(&self) -> Piece {
+        self.color
+    }
+}
+
+impl RandomAgent {
+    pub const fn new(color: Piece) -> Self {
+        Self { color }
+    }
+}

src/main.rs

@@ -1,4 +1,4 @@
-use agent::ManualAgent;
+use agent::{ManualAgent, RandomAgent};
 use complexagent::ComplexAgent;
 use game::Game;
 use piece::Piece;
@@ -14,6 +14,7 @@ fn main() {
     let player1 = ComplexAgent::new(Piece::Black);
     // let player2 = ComplexAgent::new(Piece::White);
     let player2 = ManualAgent::new(Piece::White);
+    // let player2 = RandomAgent::new(Piece::White);
     let mut game = Game::new(Box::new(player1), Box::new(player2));
     game.game_loop();
 }