add benchmark executable

src/benchmark.rs

@@ -0,0 +1,39 @@
+use std::time::Instant;
+
+use marble_machinations::{
+	level::Level,
+	marble_engine::{board::Board, Machine},
+	solution::Solution,
+};
+
+fn main() {
+	aoc_2024_1a();
+}
+
+fn aoc_2024_1a() {
+	println!("running aoc_2024_1a");
+	benchmark(
+		include_str!("../benchmarks/aoc_2024_1a_level.json"),
+		include_str!("../benchmarks/aoc_2024_1a_solution.json"),
+	);
+}
+
+fn benchmark(level: &str, solution: &str) {
+	let level: Level = serde_json::from_str(level).unwrap();
+	let solution: Solution = serde_json::from_str(solution).unwrap();
+	let cycle_count = solution.score.unwrap().cycles;
+	let mut machine = Machine::new_empty();
+	machine.set_board(Board::parse(&solution.board));
+	let start_time = Instant::now();
+	for (n, stage) in level.stages().iter().enumerate() {
+		machine.set_input(stage.input().as_bytes().to_owned());
+		for _ in 0..cycle_count {
+			machine.step();
+		}
+		assert_eq!(machine.output(), stage.output().as_bytes());
+		println!("passed stage {n}");
+		machine.reset();
+	}
+	let elapsed = start_time.elapsed();
+	println!("took {elapsed:?}");
+}