From 7e73782a7d51b40a558b74793c1d6c1abdea857d Mon Sep 17 00:00:00 2001
From: Botahamec <botahamec@outlook.com>
Date: Thu, 8 Jul 2021 20:32:44 -0400
Subject: here's what i have so far

---
 cli/Cargo.toml   | 12 ++++++++++++
 cli/src/main.rs  | 37 +++++++++++++++++++++++++++++++++++++
 cli/src/perft.rs | 26 ++++++++++++++++++++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 cli/Cargo.toml
 create mode 100644 cli/src/main.rs
 create mode 100644 cli/src/perft.rs

(limited to 'cli')

diff --git a/cli/Cargo.toml b/cli/Cargo.toml
new file mode 100644
index 0000000..093c594
--- /dev/null
+++ b/cli/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "cli"
+version = "0.1.0"
+authors = ["Mike White <botahamec@outlook.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = "2"
+ai = {path = "../ai"}
+rayon = "1.5"
\ No newline at end of file
diff --git a/cli/src/main.rs b/cli/src/main.rs
new file mode 100644
index 0000000..f7fcddf
--- /dev/null
+++ b/cli/src/main.rs
@@ -0,0 +1,37 @@
+use ai::CheckersBitBoard;
+use clap::{App, Arg, SubCommand};
+
+mod perft;
+
+fn main() {
+	let matches = App::new("Ampere")
+		.version("0.1")
+		.author("Botahamec <botahamec@outlook.com>")
+		.about("An American Checkers AI")
+		.subcommand(
+			SubCommand::with_name("perft")
+				.about("Calculate the number of possible moves")
+				.arg(
+					Arg::with_name("depth")
+						.required(true)
+						.short("d")
+						.takes_value(true)
+						.help("The depth to go to"),
+				),
+		)
+		.get_matches();
+
+	if let Some(matches) = matches.subcommand_matches("perft") {
+		println!(
+			"{}",
+			perft::positions(
+				CheckersBitBoard::starting_position(),
+				matches
+					.value_of("depth")
+					.unwrap()
+					.parse::<usize>()
+					.expect("Error: not a valid number")
+			)
+		);
+	}
+}
diff --git a/cli/src/perft.rs b/cli/src/perft.rs
new file mode 100644
index 0000000..eba640e
--- /dev/null
+++ b/cli/src/perft.rs
@@ -0,0 +1,26 @@
+use ai::{CheckersBitBoard, Move, PossibleMoves};
+use rayon::prelude::*;
+use std::fmt::{Display, Formatter};
+
+#[derive(Clone)]
+struct PerftResult {
+	result: Vec<(Move, usize)>,
+}
+
+pub fn positions(board: CheckersBitBoard, depth: usize) -> usize {
+	let moves = PossibleMoves::moves(board);
+
+	if depth == 0 {
+		1
+	} else {
+		let mut total = 0;
+
+		for current_move in moves {
+			// safety: we got this move out of the list of possible moves, so it's definitely valid
+			let board = unsafe { current_move.apply_to(board) };
+			total += positions(board, depth - 1);
+		}
+
+		total
+	}
+}
-- 
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