From 95df9764759f737407289a5a0eed6e583867058d Mon Sep 17 00:00:00 2001
From: stopflock <admin@stopflock.com>
Date: Fri, 18 Jul 2025 23:12:54 -0500
Subject: [PATCH] we have fov cones

---
 lib/models/osm_camera_node.dart | 16 ++++++++++++++--
 lib/screens/home_screen.dart    |  1 -
 lib/widgets/map_view.dart       | 24 +++++++++++++++++++-----
 3 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/lib/models/osm_camera_node.dart b/lib/models/osm_camera_node.dart
index f2e17aa..7e994b4 100644
--- a/lib/models/osm_camera_node.dart
+++ b/lib/models/osm_camera_node.dart
@@ -15,8 +15,20 @@ class OsmCameraNode {
       tags.containsKey('direction') || tags.containsKey('camera:direction');
 
   double? get directionDeg {
-    final val = tags['direction'] ?? tags['camera:direction'];
-    return double.tryParse(val ?? '');
+    final raw = tags['direction'] ?? tags['camera:direction'];
+    if (raw == null) return null;
+
+    // Keep digits, optional dot, optional leading sign.
+    final match = RegExp(r'[-+]?\d*\.?\d+').firstMatch(raw);
+    if (match == null) return null;
+
+    final numStr = match.group(0);
+    final val = double.tryParse(numStr ?? '');
+    if (val == null) return null;
+
+    // Normalize: wrap negative or >360 into 0‑359 range.
+    final normalized = ((val % 360) + 360) % 360;
+    return normalized;
   }
 }
 
diff --git a/lib/screens/home_screen.dart b/lib/screens/home_screen.dart
index 2f6ca4f..a6001bc 100644
--- a/lib/screens/home_screen.dart
+++ b/lib/screens/home_screen.dart
@@ -27,7 +27,6 @@ class _HomeScreenState extends State<HomeScreen> {
       builder: (_) => const AddCameraSheet(),
     );
 
-    // null == closed via system back (treat as cancel)
     if (submitted == true) {
       appState.commitSession();
       if (mounted) {
diff --git a/lib/widgets/map_view.dart b/lib/widgets/map_view.dart
index be23920..fc1d95a 100644
--- a/lib/widgets/map_view.dart
+++ b/lib/widgets/map_view.dart
@@ -95,6 +95,19 @@ class _MapViewState extends State<MapView> {
   Widget build(BuildContext context) {
     final appState = context.watch<AppState>();
     final session = appState.session;
+
+    // If we just entered add‑mode and no target yet, seed it with current map center.
+    if (session != null && session.target == null) {
+      try {
+        final center = _controller.camera.center;
+        WidgetsBinding.instance.addPostFrameCallback(
+          (_) => appState.updateSession(target: center),
+        );
+      } catch (_) {
+        // controller not ready yet; will update onPositionChanged soon
+      }
+    }
+
     final zoom = _safeZoom();
 
     final markers = <Marker>[
@@ -141,8 +154,7 @@ class _MapViewState extends State<MapView> {
           ),
           children: [
             TileLayer(
-              urlTemplate:
-                  'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+              urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
               userAgentPackageName: 'com.example.flock_map_app',
             ),
             PolygonLayer(polygons: overlays),
@@ -161,7 +173,7 @@ class _MapViewState extends State<MapView> {
 
   Polygon _buildCone(LatLng origin, double bearingDeg, double zoom) {
     const halfAngle = 15.0;
-    final length = 0.002 * math.pow(2, 15 - zoom);
+    final length = 0.002 * math.pow(2, 15 - zoom); // scale with zoom
 
     LatLng _project(double deg) {
       final rad = deg * math.pi / 180;
@@ -175,9 +187,11 @@ class _MapViewState extends State<MapView> {
     final right = _project(bearingDeg + halfAngle);
 
     return Polygon(
-      points: [origin, left, right],
+      points: [origin, left, right, origin],
+      isFilled: true,
       color: Colors.redAccent.withOpacity(0.25),
-      borderStrokeWidth: 0,
+      borderColor: Colors.redAccent,
+      borderStrokeWidth: 1,
     );
   }
 }