udpate sick

frontend/src/types.rs

@@ -66,6 +66,9 @@ pub struct TileBuffers {
 
     pub water_line_vertex_buffer: wgpu::Buffer,
     pub water_line_vertex_count: u32,
+    
+    // Tile-specific uniform bind group for relative coordinates
+    pub tile_bind_group: wgpu::BindGroup,
 }
 
 /// Type of label for styling