add simulation benchmark

Cargo.lock

@@ -26,6 +26,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anes"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "735d4f398ca57cfa2880225c2bf81c3b9af3be5bb22e44ae70118dad38713e84"
+
 [[package]]
 name = "anstream"
 version = "0.6.15"
@@ -148,6 +154,7 @@ dependencies = [
 name = "battlesnake"
 version = "1.0.0"
 dependencies = [
+ "criterion2",
  "enum-iterator",
  "env_logger",
  "iter_tools",
@@ -171,6 +178,12 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
+[[package]]
+name = "bpaf"
+version = "0.9.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d4e5ca9929037866947af4b8b7418124f2ec7c411a8b9ee24e46ad2b8470497"
+
 [[package]]
 name = "bytemuck"
 version = "1.17.1"
@@ -189,6 +202,12 @@ version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8318a53db07bb3f8dca91a600466bdb3f2eaadeedfdbcf02e1accbad9271ba50"
 
+[[package]]
+name = "cast"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
+
 [[package]]
 name = "cc"
 version = "1.1.15"
@@ -204,6 +223,33 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "ciborium"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42e69ffd6f0917f5c029256a24d0161db17cea3997d185db0d35926308770f0e"
+dependencies = [
+ "ciborium-io",
+ "ciborium-ll",
+ "serde",
+]
+
+[[package]]
+name = "ciborium-io"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05afea1e0a06c9be33d539b876f1ce3692f4afea2cb41f740e7743225ed1c757"
+
+[[package]]
+name = "ciborium-ll"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57663b653d948a338bfb3eeba9bb2fd5fcfaecb9e199e87e1eda4d9e8b240fd9"
+dependencies = [
+ "ciborium-io",
+ "half",
+]
+
 [[package]]
 name = "clone_dyn_types"
 version = "0.23.0"
@@ -227,6 +273,24 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "criterion2"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6c2be2af5816b76f45745ccfb9959a9efd1322ae4c88fc3c9b2d6bcdabe5554"
+dependencies = [
+ "anes",
+ "bpaf",
+ "cast",
+ "ciborium",
+ "num-traits",
+ "oorandom",
+ "rayon",
+ "serde",
+ "serde_json",
+ "walkdir",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.5"
@@ -252,6 +316,12 @@ version = "0.8.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
 [[package]]
 name = "deranged"
 version = "0.3.11"
@@ -514,6 +584,16 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "half"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dd08c532ae367adf81c312a4580bc67f1d0fe8bc9c460520283f4c0ff277888"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
@@ -826,6 +906,12 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "oorandom"
+version = "11.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b410bbe7e14ab526a0e86877eb47c6996a2bd7746f027ba551028c925390e4e9"
+
 [[package]]
 name = "ordered-float"
 version = "4.3.0"
@@ -1187,6 +1273,15 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "scoped-tls"
 version = "1.0.1"
@@ -1586,6 +1681,16 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -1617,6 +1722,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

battlesnake/Cargo.toml

@@ -26,8 +26,16 @@ enum-iterator = "2.1"
 iter_tools = "0.21"
 ordered-float = "4.3.0"
 
+[dev-dependencies]
+# criterion = { version = "0.5.1", features = ["html_reports"] }
+criterion2 = "1.1.1"
+
 [profile.release]
 lto = "fat"
 codegen-units = 1
 panic = "abort"
 strip = true
+
+[[bench]]
+name = "simulation"
+harness = false

battlesnake/benches/simulation.rs

@@ -0,0 +1,120 @@
+use battlesnake::{
+    simulation::{self, SnakeToken},
+    Coord,
+};
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use rand::{rngs::StdRng, SeedableRng};
+
+fn random_moves(board: &battlesnake::Board) -> Option<SnakeToken> {
+    let token_map = SnakeToken::from_board(board);
+    let mut board = simulation::Board::from_game_board(board, &token_map, 0, 15, 1, false);
+    let mut rng = StdRng::seed_from_u64(0);
+
+    board.simulate_until(&mut rng, |board| board.alive_snakes() <= 1);
+
+    let winner = board.snakes().next();
+    winner
+}
+
+fn bench_duel_random_moves(c: &mut Criterion) {
+    c.bench_function("duel random moves", |b| {
+        b.iter(|| {
+            random_moves(black_box(&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(),
+                    },
+                ],
+                hazards: vec![],
+            }))
+        });
+    });
+}
+
+fn bench_standard_random_moves(c: &mut Criterion) {
+    c.bench_function("standard random moves", |b| {
+        b.iter(|| {
+            random_moves(black_box(&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![],
+            }))
+        });
+    });
+}
+
+criterion_group!(
+    benches,
+    bench_duel_random_moves,
+    bench_standard_random_moves
+);
+criterion_main!(benches);