Add new screens for game management, team management, and cache handling; implement caching logic and session management

src/utils/geoMath.js

@@ -0,0 +1,18 @@
+import * as geolib from 'geolib';
+
+const isWithinRadius = (playerCoords, cacheCoords, radius) => {
+  const distance = geolib.getDistance(playerCoords, cacheCoords);
+  return distance <= radius;
+};
+
+const isLookingAtCache = (playerHeading, playerCoords, cacheCoords, tolerance = 20) => {
+  if (playerHeading === null || playerHeading === undefined) {
+    return false;
+  }
+  const bearingToCache = geolib.getRhumbLineBearing(playerCoords, cacheCoords);
+  const diff = Math.abs(bearingToCache - playerHeading);
+  return diff <= tolerance || diff >= 360 - tolerance;
+};
+
+export { isWithinRadius, isLookingAtCache };
+