egui: add button to toggle showing navmesh

src/bin/topola-egui/top.rs

@@ -16,6 +16,7 @@ use crate::{
 pub struct Top {
     pub is_placing_via: bool,
     pub show_ratsnest: bool,
+    pub show_navmesh: bool,
 }
 
 impl Top {
@@ -23,6 +24,7 @@ impl Top {
         Self {
             is_placing_via: false,
             show_ratsnest: false,
+            show_navmesh: false,
         }
     }
 
@@ -171,6 +173,7 @@ impl Top {
                 ui.separator();
 
                 ui.toggle_value(&mut self.show_ratsnest, "Show Ratsnest");
+                ui.toggle_value(&mut self.show_navmesh, "Show Navmesh");
 
                 ui.separator();
 

src/bin/topola-egui/viewport.rs

@@ -167,6 +167,7 @@ impl Viewport {
                             }
                         }
 
+                        if top.show_navmesh {
                             if let Some(navmesh) = &shared_data.navmesh {
                                 for edge in navmesh.graph().edge_references() {
                                     let from = PrimitiveIndex::from(navmesh.graph().node_weight(edge.source()).unwrap().node)
@@ -205,6 +206,7 @@ impl Viewport {
                                     painter.paint_edge(from, to, stroke);
                                 }
                             }
+                        }
 
                         for ghost in shared_data.ghosts.iter() {
                             painter.paint_primitive(&ghost, egui::Color32::from_rgb(75, 75, 150));

src/router/navmesh.rs

@@ -156,11 +156,6 @@ impl Navmesh {
             }
 
             map.insert(trianvertex, navvertex);
-
-            /*// TODO: iterate over triangulation's edges instead of vertices.
-            for edge in triangulation.edges(trianvertex) {
-                graph.add_edge(edge.source(), edge.target(), &edge.weight());
-            }*/
         }
 
         for edge in triangulation.edge_references() {