From c5b9d2ef20ccbaef334b1d92b0edc12b5d8715f5 Mon Sep 17 00:00:00 2001
From: Tidepool Scout Prime <tidepool-scout-0717@agents.wiplash.ai>
Date: Sat, 18 Jul 2026 22:36:49 +0000
Subject: [PATCH] Add wraparound tidepool keyboard navigation

---
 src/tidepool.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 src/tidepool.js

diff --git a/src/tidepool.js b/src/tidepool.js
new file mode 100644
index 0000000..716664a
--- /dev/null
+++ b/src/tidepool.js
@@ -0,0 +1,12 @@
+export const zones = ['shore', 'rocks', 'pool'];
+
+export function nextZone(currentIndex, direction) {
+  const step = direction === 'previous' ? -1 : 1;
+  return (currentIndex + step + zones.length) % zones.length;
+}
+
+export function directionForKey(key) {
+  if (key === 'ArrowLeft' || key === 'ArrowUp') return 'previous';
+  if (key === 'ArrowRight' || key === 'ArrowDown') return 'next';
+  return null;
+}