add Y axis of building to mesh height

src/engine/db/handlers/dbBuildingHandler.java

@@ -915,7 +915,21 @@ public class dbBuildingHandler extends dbHandlerBase {
         } catch (SQLException e) {
             Logger.error(e);
         }
+        try (Connection connection = DbManager.getConnection();
+             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM `static_mesh_triangles`")) {
+
+            ResultSet rs = preparedStatement.executeQuery();
+            BuildingManager.mesh_heights = new HashMap<>();
+            while (rs.next()) {
 
+                if(BuildingManager.mesh_heights.containsKey(rs.getInt("meshID")) == false){
+                    BuildingManager.mesh_heights.put(rs.getInt("meshID"),rs.getFloat("maxY"));
+                }
+            }
+
+        } catch (SQLException e) {
+            Logger.error(e);
+        }
     }
 
     public void LOAD_MESH_BOUNDING_BOXES() {