From 6980ace9e41f48b2e109257404eba0bb76b332af Mon Sep 17 00:00:00 2001
From: audiobird <cantrellhepner@gmail.com>
Date: Wed, 2 Apr 2025 13:16:19 -0700
Subject: [PATCH] Add simple rising edge detector

.
---
 util/edge_detector.hh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/util/edge_detector.hh b/util/edge_detector.hh
index 141fd36..70a1253 100644
--- a/util/edge_detector.hh
+++ b/util/edge_detector.hh
@@ -38,3 +38,14 @@ struct EdgeStateDetector {
 		last_state_ = false;
 	}
 };
+
+class RisingEdgeDetector {
+	bool last_state_ = false;
+
+public:
+	bool update(bool state) {
+		const auto out = state && last_state_ != state;
+		last_state_ = state;
+		return out;
+	}
+};