WaterBlock tiling to match T2/Torque, improve CLAUDE.md

src/components/usePositionTracker.ts

@@ -0,0 +1,25 @@
+import { useCallback, useRef } from "react";
+import { Vector3 } from "three";
+
+export function usePositionTracker() {
+  const positionRef = useRef<Vector3>(null);
+
+  const hasChanged = useCallback((position: Vector3) => {
+    if (!positionRef.current) {
+      positionRef.current = position.clone();
+      return true;
+    }
+    const isSamePosition =
+      positionRef.current.x === position.x &&
+      positionRef.current.y === position.y &&
+      positionRef.current.z === position.z;
+
+    if (!isSamePosition) {
+      positionRef.current.copy(position);
+    }
+
+    return isSamePosition;
+  }, []);
+
+  return hasChanged;
+}