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Add a PathFinderOverlay to visualize path searches.

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Activated with the '/path-debug' chat command, this displays the explored search space and costs when searching for paths. It supports custom movement layers, bi-directional searches as well as visualizing searches over the abstract graph of the HierarchicalPathFinder. The most recent search among selected units is shown.
This commit is contained in:
RoosterDragon
2022-05-22 15:20:38 +01:00
committed by Matthias Mailänder
parent aef65d353d
commit 93998dc4a7
8 changed files with 283 additions and 20 deletions
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11
OpenRA.Mods.Common/Traits/World/PathFinder.cs
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@@ -39,6 +39,7 @@ namespace OpenRA.Mods.Common.Traits
const int DefaultHeuristicWeightPercentage = 125;
readonly World world;
PathFinderOverlay pathFinderOverlay;
Dictionary<Locomotor, HierarchicalPathFinder> hierarchicalPathFindersByLocomotor;
public PathFinder(Actor self)
@@ -55,6 +56,8 @@ namespace OpenRA.Mods.Common.Traits
public void WorldLoaded(World w, WorldRenderer wr)
{
pathFinderOverlay = world.WorldActor.TraitOrDefault<PathFinderOverlay>();
// Requires<LocomotorInfo> ensures all Locomotors have been initialized.
hierarchicalPathFindersByLocomotor = w.WorldActor.TraitsImplementing<Locomotor>().ToDictionary(
locomotor => locomotor,
@@ -106,12 +109,12 @@ namespace OpenRA.Mods.Common.Traits
// Use a hierarchical path search, which performs a guided bidirectional search.
return hierarchicalPathFindersByLocomotor[locomotor].FindPath(
self, source, target, check, DefaultHeuristicWeightPercentage, customCost, ignoreActor, laneBias);
self, source, target, check, DefaultHeuristicWeightPercentage, customCost, ignoreActor, laneBias, pathFinderOverlay);
}
// Use a hierarchical path search, which performs a guided unidirectional search.
return hierarchicalPathFindersByLocomotor[locomotor].FindPath(
self, sourcesList, target, check, DefaultHeuristicWeightPercentage, customCost, ignoreActor, laneBias);
self, sourcesList, target, check, DefaultHeuristicWeightPercentage, customCost, ignoreActor, laneBias, pathFinderOverlay);
}
/// <summary>
@@ -129,9 +132,11 @@ namespace OpenRA.Mods.Common.Traits
Actor ignoreActor = null,
bool laneBias = true)
{
pathFinderOverlay?.NewRecording(self, sources, null);
// With no pre-specified target location, we can only use a unidirectional search.
using (var search = PathSearch.ToTargetCellByPredicate(
world, GetActorLocomotor(self), self, sources, targetPredicate, check, customCost, ignoreActor, laneBias))
world, GetActorLocomotor(self), self, sources, targetPredicate, check, customCost, ignoreActor, laneBias, pathFinderOverlay?.RecordLocalEdges(self)))
return search.FindPath();
}