From 3e15a32a48b24255e22ba3ed61baecacb97914b0 Mon Sep 17 00:00:00 2001 From: Dan Johnson Date: Wed, 3 Sep 2025 10:28:50 -0700 Subject: [PATCH] add seeding for rng --- Cargo.lock | 128 +++++++++++++++++++++++++++++++++++++++++++++++++++- Cargo.toml | 3 ++ src/main.rs | 24 +++++++--- 3 files changed, 147 insertions(+), 8 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index f934c39..95e7620 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -23,19 +23,46 @@ version = "1.2.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "64fa3c856b712db6612c019f14756e64e4bcea13337a6b33b696333a9eaa2d06" +[[package]] +name = "cfg-if" +version = "1.0.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9" + [[package]] name = "fast-srgb8" version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "dd2e7510819d6fbf51a5545c8f922716ecfb14df168a3242f7d33e0239efe6a1" +[[package]] +name = "getrandom" +version = "0.3.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4" +dependencies = [ + "cfg-if", + "libc", + "r-efi", + "wasi", +] + [[package]] name = "hanoigame" version = "0.1.0" dependencies = [ "palette", + "rand 0.9.2", + "rand_pcg", + "rand_seeder", ] +[[package]] +name = "libc" +version = "0.2.175" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543" + [[package]] name = "num-traits" version = "0.2.19" @@ -86,7 +113,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d" dependencies = [ "phf_shared", - "rand", + "rand 0.8.5", ] [[package]] @@ -111,6 +138,15 @@ dependencies = [ "siphasher", ] +[[package]] +name = "ppv-lite86" +version = "0.2.21" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9" +dependencies = [ + "zerocopy", +] + [[package]] name = "proc-macro2" version = "1.0.101" @@ -129,13 +165,39 @@ dependencies = [ "proc-macro2", ] +[[package]] +name = "r-efi" +version = "5.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f" + [[package]] name = "rand" version = "0.8.5" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404" dependencies = [ - "rand_core", + "rand_core 0.6.4", +] + +[[package]] +name = "rand" +version = "0.9.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1" +dependencies = [ + "rand_chacha", + "rand_core 0.9.3", +] + +[[package]] +name = "rand_chacha" +version = "0.9.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb" +dependencies = [ + "ppv-lite86", + "rand_core 0.9.3", ] [[package]] @@ -144,6 +206,33 @@ version = "0.6.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c" +[[package]] +name = "rand_core" +version = "0.9.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38" +dependencies = [ + "getrandom", +] + +[[package]] +name = "rand_pcg" +version = "0.9.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b48ac3f7ffaab7fac4d2376632268aa5f89abdb55f7ebf8f4d11fffccb2320f7" +dependencies = [ + "rand_core 0.9.3", +] + +[[package]] +name = "rand_seeder" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "502927fdfc3c9645d53e0c95bb2d53783b5a15bfeaeeb96f7703c21fbb76841e" +dependencies = [ + "rand_core 0.9.3", +] + [[package]] name = "siphasher" version = "1.0.1" @@ -166,3 +255,38 @@ name = "unicode-ident" version = "1.0.18" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512" + +[[package]] +name = "wasi" +version = "0.14.3+wasi-0.2.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6a51ae83037bdd272a9e28ce236db8c07016dd0d50c27038b3f407533c030c95" +dependencies = [ + "wit-bindgen", +] + +[[package]] +name = "wit-bindgen" +version = "0.45.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "052283831dbae3d879dc7f51f3d92703a316ca49f91540417d38591826127814" + +[[package]] +name = "zerocopy" +version = "0.8.26" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1039dd0d3c310cf05de012d8a39ff557cb0d23087fd44cad61df08fc31907a2f" +dependencies = [ + "zerocopy-derive", +] + +[[package]] +name = "zerocopy-derive" +version = "0.8.26" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181" +dependencies = [ + "proc-macro2", + "quote", + "syn", +] diff --git a/Cargo.toml b/Cargo.toml index f190e15..e8d44d7 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -5,5 +5,8 @@ edition = "2024" [dependencies] palette = "0.7" +rand = "0.9.2" +rand_pcg = "0.9.0" +rand_seeder = "0.4.0" [workspace] diff --git a/src/main.rs b/src/main.rs index 6ebc2ad..d302c5e 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,4 +1,7 @@ use palette::{IntoColor, OklabHue, Oklch, Srgb}; +use rand::seq::SliceRandom as _; +use rand_pcg::Pcg64; +use rand_seeder::Seeder; use std::{ collections::{BinaryHeap, HashMap, HashSet}, fmt::Display, @@ -643,15 +646,16 @@ pub struct GameGenerator { } impl GameGenerator { - pub fn generate(self) -> Game { + pub fn generate(self, rng: &mut Pcg64) -> Game { let mut towers = Vec::new(); - let mut rings = HashSet::new(); + let mut rings = Vec::new(); for ring_type in 0..self.num_ring_types { for idx in 0..TOWER_HEIGHT { - rings.insert((Ring(NonZero::new(ring_type + 1).unwrap()), idx)); + rings.push((Ring(NonZero::new(ring_type + 1).unwrap()), idx)); } } + rings.shuffle(rng); let rings = rings.into_iter().map(|(i, _)| i).collect::>(); @@ -666,9 +670,13 @@ impl GameGenerator { Game::new(towers) } - pub fn highest_burried_score(self) -> Game { + pub fn highest_burried_score( + self, + seed: &str, + ) -> Game { + let mut rng: Pcg64 = Seeder::from(seed).into_rng(); iter::repeat(self) - .map(|i| i.generate()) + .map(|i| i.generate(&mut rng)) .take(100) .max_by_key(|i| i.burried_ring_score()) .unwrap() @@ -748,11 +756,15 @@ impl Default for UndoStack { } fn main() -> io::Result<()> { + eprint!("seed> "); + let mut seed = String::new(); + stdin().read_line(&mut seed).unwrap(); + let mut g = GameGenerator { num_extra_towers: 2, num_ring_types: 13, } - .highest_burried_score::<4>(); + .highest_burried_score::<4>(&seed); if let Some(solution) = g.solve() { let mut g = Game {