refactor(autorouter/invoker): Expose getter for whole A* stepper, not just navmesh

Besides owning the navmesh, the A* stepper stores g-scores and f-scores,
displaying which will be helpful for debugging, so we want to be able to
access the whole A* stepper instead of only the navmesh.

crates/topola-egui/src/viewport.rs

@@ -12,7 +12,7 @@ use topola::{
     autorouter::{
         execution::Command,
         invoker::{
-            GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles,
+            GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
         },
     },
     board::AccessMesadata,
@@ -252,7 +252,9 @@ impl Viewport {
 
                         if menu_bar.show_navmesh {
                             if let Some(activity) = workspace.interactor.maybe_activity() {
-                                if let Some(navmesh) = activity.maybe_navmesh() {
+                                if let Some(ref navmesh) =
+                                    activity.maybe_astar().map(|astar| &astar.graph)
+                                {
                                     for edge in navmesh.edge_references() {
                                         let mut from = PrimitiveIndex::from(
                                             navmesh.node_weight(edge.source()).unwrap().node,
@@ -448,7 +450,9 @@ impl Viewport {
                                     .paint_primitive(ghost, egui::Color32::from_rgb(75, 75, 150));
                             }
 
-                            if let Some(navmesh) = activity.maybe_navmesh() {
+                            if let Some(ref navmesh) =
+                                activity.maybe_astar().map(|astar| &astar.graph)
+                            {
                                 if menu_bar.show_origin_destination {
                                     let (origin, destination) =
                                         (navmesh.origin(), navmesh.destination());

src/autorouter/autoroute.rs

@@ -15,6 +15,7 @@ use crate::{
     geometry::primitive::PrimitiveShape,
     layout::LayoutEdit,
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
         RouteStepper, Router,
@@ -23,7 +24,9 @@ use crate::{
 };
 
 use super::{
-    invoker::{GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles},
+    invoker::{
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
+    },
     Autorouter, AutorouterError, AutorouterOptions,
 };
 
@@ -162,9 +165,9 @@ impl<M: AccessMesadata> Step<Autorouter<M>, Option<LayoutEdit>, AutorouteContinu
     }
 }
 
-impl GetMaybeNavmesh for AutorouteExecutionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
-        self.route.as_ref().map(|route| route.navmesh())
+impl GetMaybeAstarStepper for AutorouteExecutionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
+        self.route.as_ref().map(|route| route.astar())
     }
 }
 

src/autorouter/compare_detours.rs

@@ -15,6 +15,7 @@ use crate::{
     geometry::{primitive::PrimitiveShape, shape::MeasureLength},
     graph::MakeRef,
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
@@ -23,7 +24,9 @@ use crate::{
 
 use super::{
     autoroute::{AutorouteContinueStatus, AutorouteExecutionStepper},
-    invoker::{GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles},
+    invoker::{
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
+    },
     Autorouter, AutorouterError, AutorouterOptions,
 };
 
@@ -103,9 +106,9 @@ impl<M: AccessMesadata> Step<Autorouter<M>, (f64, f64)> for CompareDetoursExecut
     }
 }
 
-impl GetMaybeNavmesh for CompareDetoursExecutionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
-        self.autoroute.maybe_navmesh()
+impl GetMaybeAstarStepper for CompareDetoursExecutionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
+        self.autoroute.maybe_astar()
     }
 }
 

src/autorouter/execution.rs

@@ -36,7 +36,7 @@ pub enum Command {
 }
 
 #[enum_dispatch(
-    GetMaybeNavmesh,
+    GetMaybeAstarStepper,
     GetMaybeNavcord,
     GetGhosts,
     GetObstacles,

src/autorouter/invoker.rs

@@ -16,6 +16,7 @@ use crate::{
     drawing::graph::PrimitiveIndex,
     geometry::{edit::ApplyGeometryEdit, primitive::PrimitiveShape},
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
@@ -33,31 +34,32 @@ use super::{
     Autorouter, AutorouterError,
 };
 
+/// Trait for getting the A* stepper to display its data on the debug overlay,
+/// most importantly the navmesh which is owned by the A* stepper.
 #[enum_dispatch]
-/// Trait for getting the navmesh to display it on the debug overlay.
-pub trait GetMaybeNavmesh {
-    fn maybe_navmesh(&self) -> Option<&Navmesh>;
+pub trait GetMaybeAstarStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>>;
 }
 
-#[enum_dispatch]
 /// Trait for getting the navcord to display it on the debug overlay.
+#[enum_dispatch]
 pub trait GetMaybeNavcord {
     fn maybe_navcord(&self) -> Option<&Navcord>;
 }
 
-#[enum_dispatch]
 /// Trait for getting ghosts to display on the debug overlay. Ghosts are the
 /// shapes that Topola attempted to create but failed due to them infringing on
 /// other shapes.
+#[enum_dispatch]
 pub trait GetGhosts {
     fn ghosts(&self) -> &[PrimitiveShape];
 }
 
-#[enum_dispatch]
 /// Trait for getting the obstacles that prevented Topola from creating
 /// new objects (the shapes of these objects can be obtained with the above
 /// `GetGhosts` trait), for the purpose of displaying these obstacles on the
 /// debug overlay.
+#[enum_dispatch]
 pub trait GetObstacles {
     fn obstacles(&self) -> &[PrimitiveIndex];
 }

src/autorouter/measure_length.rs

@@ -12,13 +12,16 @@ use crate::{
     geometry::{primitive::PrimitiveShape, shape::MeasureLength as MeasureLengthTrait},
     graph::MakeRef,
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
 };
 
 use super::{
-    invoker::{GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles},
+    invoker::{
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
+    },
     selection::BandSelection,
     Autorouter, AutorouterError,
 };
@@ -58,8 +61,8 @@ impl MeasureLengthExecutionStepper {
     }
 }
 
-impl GetMaybeNavmesh for MeasureLengthExecutionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
+impl GetMaybeAstarStepper for MeasureLengthExecutionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
         None
     }
 }

src/autorouter/place_via.rs

@@ -12,13 +12,16 @@ use crate::{
     geometry::primitive::PrimitiveShape,
     layout::{via::ViaWeight, LayoutEdit},
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
 };
 
 use super::{
-    invoker::{GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles},
+    invoker::{
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
+    },
     Autorouter, AutorouterError,
 };
 
@@ -55,8 +58,8 @@ impl PlaceViaExecutionStepper {
     }
 }
 
-impl GetMaybeNavmesh for PlaceViaExecutionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
+impl GetMaybeAstarStepper for PlaceViaExecutionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
         None
     }
 }

src/autorouter/remove_bands.rs

@@ -10,13 +10,16 @@ use crate::{
     geometry::primitive::PrimitiveShape,
     layout::LayoutEdit,
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
 };
 
 use super::{
-    invoker::{GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles},
+    invoker::{
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
+    },
     selection::BandSelection,
     Autorouter, AutorouterError,
 };
@@ -54,8 +57,8 @@ impl RemoveBandsExecutionStepper {
     }
 }
 
-impl GetMaybeNavmesh for RemoveBandsExecutionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
+impl GetMaybeAstarStepper for RemoveBandsExecutionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
         None
     }
 }

src/interactor/activity.rs

@@ -12,7 +12,7 @@ use crate::{
     autorouter::{
         execution::ExecutionStepper,
         invoker::{
-            GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles,
+            GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
             Invoker, InvokerError,
         },
     },
@@ -21,6 +21,7 @@ use crate::{
     geometry::primitive::PrimitiveShape,
     interactor::interaction::{InteractionError, InteractionStepper},
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
@@ -49,7 +50,7 @@ pub enum ActivityError {
 
 /// An activity is either an interaction or an execution
 #[enum_dispatch(
-    GetMaybeNavmesh,
+    GetMaybeAstarStepper,
     GetMaybeNavcord,
     GetGhosts,
     GetObstacles,
@@ -124,9 +125,9 @@ impl<M: AccessMesadata> Abort<ActivityContext<'_, M>> for ActivityStepperWithSta
     }
 }
 
-impl GetMaybeNavmesh for ActivityStepperWithStatus {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
-        self.activity.maybe_navmesh()
+impl GetMaybeAstarStepper for ActivityStepperWithStatus {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
+        self.activity.maybe_astar()
     }
 }
 

src/interactor/interaction.rs

@@ -8,12 +8,13 @@ use thiserror::Error;
 
 use crate::{
     autorouter::invoker::{
-        GetGhosts, GetMaybeNavcord, GetMaybeNavmesh, GetNavmeshDebugTexts, GetObstacles,
+        GetGhosts, GetMaybeAstarStepper, GetMaybeNavcord, GetNavmeshDebugTexts, GetObstacles,
     },
     board::AccessMesadata,
     drawing::graph::PrimitiveIndex,
     geometry::primitive::PrimitiveShape,
     router::{
+        astar::AstarStepper,
         navcord::Navcord,
         navmesh::{Navmesh, NavvertexIndex},
     },
@@ -52,8 +53,8 @@ impl<M: AccessMesadata> Abort<ActivityContext<'_, M>> for InteractionStepper {
     }
 }
 
-impl GetMaybeNavmesh for InteractionStepper {
-    fn maybe_navmesh(&self) -> Option<&Navmesh> {
+impl GetMaybeAstarStepper for InteractionStepper {
+    fn maybe_astar(&self) -> Option<&AstarStepper<Navmesh, f64>> {
         todo!()
     }
 }

src/router/route.rs

@@ -24,7 +24,6 @@ use crate::{
 
 #[derive(Getters, Dissolve)]
 pub struct RouteStepper {
-    #[getter(skip)]
     astar: AstarStepper<Navmesh, f64>,
     navcord: Navcord,
     ghosts: Vec<PrimitiveShape>,
@@ -68,10 +67,6 @@ impl RouteStepper {
             obstacles,
         }
     }
-
-    pub fn navmesh(&self) -> &Navmesh {
-        &self.astar.graph
-    }
 }
 
 impl<R: AccessRules> Step<Router<'_, R>, BandTermsegIndex> for RouteStepper {