From 2eaa99e82dc40ab59ca0033717667fe7f66452d3 Mon Sep 17 00:00:00 2001
From: funman300 <funman300@gmail.com>
Date: Mon, 8 Jun 2026 10:55:05 -0700
Subject: [PATCH] feat(card_game): add Suit::is_black and Rank::value
 convenience methods

---
 card_game/src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/card_game/src/lib.rs b/card_game/src/lib.rs
index fcf94fa..ea77918 100644
--- a/card_game/src/lib.rs
+++ b/card_game/src/lib.rs
@@ -72,6 +72,10 @@ impl Suit {
 	pub const fn is_red(self) -> bool {
 		self as u8 & 0b01 != 0
 	}
+	/// Is the suit black.
+	pub const fn is_black(self) -> bool {
+		!self.is_red()
+	}
 	/// Suit value is 2 bits, is_red is the low bit.
 	pub const fn suit_high_bit(self) -> bool {
 		self as u8 & 0b10 != 0
@@ -130,6 +134,10 @@ impl Rank {
 			_ => return None,
 		})
 	}
+	/// Numeric value: Ace = 1, King = 13.
+	pub const fn value(self) -> u8 {
+		self as u8
+	}
 	pub const fn checked_add(self, offset: u8) -> Option<Rank> {
 		match (self as u8).checked_add(offset) {
 			Some(rank) => Self::new(rank),