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/src/perft.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 cli/src/perft.rs

(limited to 'cli/src/perft.rs')

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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