* setting up framework for Regions, TransportKeys, etc

src/helpers/RegionMap.cpp

@@ -0,0 +1,35 @@
+#include "RegionMap.h"
+#include <SHA256.h>
+
+void RegionMap::load(FILESYSTEM* _fs) {
+  // TODO
+}
+void RegionMap::save(FILESYSTEM* _fs) {
+  // TODO
+}
+
+RegionEntry* RegionMap::findMatch(mesh::Packet* packet, uint8_t mask) {
+  for (int i = 0; i < num_regions; i++) {
+    auto region = &regions[i];
+    if (region->flags & mask) {   // does region allow this? (per 'mask' param)
+      TransportKey keys[4];
+      int num = _store->loadKeysFor(region->name, region->id, keys, 4);
+      for (int j = 0; j < num; j++) {
+        uint16_t code = keys[j].calcTransportCode(packet);
+        if (packet->transport_codes[0] == code) {   // a match!!
+          return region;
+        }
+      }
+    }
+  }
+  return NULL;  // no matches
+}
+
+const RegionEntry* RegionMap::findName(const char* name) const {
+  for (int i = 0; i < num_regions; i++) {
+    auto region = &regions[i];
+    if (strcmp(name, region->name) == 0) return region;
+  }
+  return NULL;  // not found
+}
+