update

frontend/src/types.rs

@@ -13,13 +13,14 @@ pub struct MapNode {
     pub tags: HashMap<String, String>,
 }
 
-/// A map way (line/polygon feature with tags and geometry)
+///A map way (line/polygon feature with tags and geometry)
 #[allow(dead_code)]
 #[derive(Deserialize, Debug, Clone)]
 pub struct MapWay {
     pub id: i64,
     pub tags: HashMap<String, String>,
     pub points: Vec<u8>,
+    pub vertex_buffer: Vec<u8>, // Precomputed GPU-ready vertex data
 }
 
 /// Combined tile data from the backend
@@ -66,3 +67,26 @@ pub struct TileBuffers {
     pub water_line_vertex_buffer: wgpu::Buffer,
     pub water_line_vertex_count: u32,
 }
+
+/// Type of label for styling
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum LabelType {
+    Country,
+    City,
+    Street,
+    Poi,
+    Transit, // S-Bahn/U-Bahn line labels (S1, U3, etc.)
+}
+
+/// Pre-computed label data to avoid processing tags every frame
+#[derive(Clone, Debug)]
+pub struct CachedLabel {
+    pub name: String,
+    pub lat: f64,
+    pub lon: f64,
+    pub label_type: LabelType,
+    pub rotation: f64,
+    pub priority: i32,
+    pub min_zoom: f64,
+    pub category: String, // CSS class suffix
+}