add benchmark for cloning the board

battlesnake/benches/simulation.rs

@@ -112,9 +112,75 @@ fn bench_standard_random_moves(c: &mut Criterion) {
     });
 }
 
+fn bench_board_clone(c: &mut Criterion) {
+    let board = battlesnake::Board {
+        height: 11,
+        width: 11,
+        food: vec![Coord { x: 5, y: 5 }],
+        snakes: vec![
+            battlesnake::Battlesnake {
+                id: "1".to_owned(),
+                name: "1".to_owned(),
+                health: 100,
+                body: vec![Coord { x: 5, y: 1 }; 3],
+                head: Coord { x: 5, y: 1 },
+                length: 3,
+                latency: "0".to_owned(),
+                shout: None,
+                squad: String::new(),
+            },
+            battlesnake::Battlesnake {
+                id: "2".to_owned(),
+                name: "2".to_owned(),
+                health: 100,
+                body: vec![Coord { x: 5, y: 9 }; 3],
+                head: Coord { x: 5, y: 9 },
+                length: 3,
+                latency: "0".to_owned(),
+                shout: None,
+                squad: String::new(),
+            },
+            battlesnake::Battlesnake {
+                id: "3".to_owned(),
+                name: "3".to_owned(),
+                health: 100,
+                body: vec![Coord { x: 1, y: 5 }; 3],
+                head: Coord { x: 1, y: 5 },
+                length: 3,
+                latency: "0".to_owned(),
+                shout: None,
+                squad: String::new(),
+            },
+            battlesnake::Battlesnake {
+                id: "4".to_owned(),
+                name: "4".to_owned(),
+                health: 100,
+                body: vec![Coord { x: 9, y: 5 }; 3],
+                head: Coord { x: 9, y: 5 },
+                length: 3,
+                latency: "0".to_owned(),
+                shout: None,
+                squad: String::new(),
+            },
+        ],
+        hazards: vec![],
+    };
+    let token_map = SnakeToken::from_board(&board);
+    let mut board =
+        battlesnake::simulation::Board::from_game_board(&board, &token_map, 0, 12, 1, false);
+
+    let mut rng = StdRng::seed_from_u64(0);
+    board.simulate_until(&mut rng, |board| board.turn() > 25);
+
+    c.bench_function("board clone", |b| {
+        b.iter(|| board.clone());
+    });
+}
+
 criterion_group!(
     benches,
     bench_duel_random_moves,
-    bench_standard_random_moves
+    bench_standard_random_moves,
+    bench_board_clone,
 );
 criterion_main!(benches);