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Add NavMeshPathFlags to navmesh for partial paths info

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This commit is contained in:
Wojtek Figat
2023-08-31 09:37:27 +02:00
parent 540681e59d
commit 5500e99ed8
2 changed files with 31 additions and 2 deletions
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4
Source/Engine/Navigation/NavMeshRuntime.cpp
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@@ -78,9 +78,10 @@ bool NavMeshRuntime::FindDistanceToWall(const Vector3& startPosition, NavMeshHit
return true;
}
bool NavMeshRuntime::FindPath(const Vector3& startPosition, const Vector3& endPosition, Array<Vector3, HeapAllocation>& resultPath) const
bool NavMeshRuntime::FindPath(const Vector3& startPosition, const Vector3& endPosition, Array<Vector3, HeapAllocation>& resultPath, NavMeshPathFlags& resultFlags) const
{
resultPath.Clear();
resultFlags = NavMeshPathFlags::None;
ScopeLock lock(Locker);
const auto query = GetNavMeshQuery();
if (!query || !_navMesh)
@@ -120,6 +121,7 @@ bool NavMeshRuntime::FindPath(const Vector3& startPosition, const Vector3& endPo
if (pathSize == 1 && dtStatusDetail(findPathStatus, DT_PARTIAL_RESULT))
{
resultFlags |= NavMeshPathFlags::PartialPath;
// TODO: skip adding 2nd end point if it's not reachable (use navmesh raycast check? or physics check? or local Z distance check?)
resultPath.Resize(2);
resultPath[0] = startPosition;

29
Source/Engine/Navigation/NavMeshRuntime.h
View File

@@ -24,6 +24,19 @@ public:
BytesContainer Data;
};
/// <summary>
/// The navigation mesh path flags.
/// </summary>
enum class NavMeshPathFlags
{
// Nothing.
None = 0,
// Path is only partially generated, goal is unreachable so path represents the best guess.
PartialPath = 1,
};
DECLARE_ENUM_OPERATORS(NavMeshPathFlags);
/// <summary>
/// The navigation mesh runtime object that builds the navmesh from all loaded scenes.
/// </summary>
@@ -106,7 +119,21 @@ public:
/// <param name="endPosition">The end position.</param>
/// <param name="resultPath">The result path.</param>
/// <returns>True if found valid path between given two points (it may be partial), otherwise false if failed.</returns>
bool FindPath(const Vector3& startPosition, const Vector3& endPosition, Array<Vector3, HeapAllocation>& resultPath) const;
bool FindPath(const Vector3& startPosition, const Vector3& endPosition, Array<Vector3, HeapAllocation>& resultPath) const
{
NavMeshPathFlags flags;
return FindPath(startPosition, endPosition, resultPath, flags);
}
/// <summary>
/// Finds the path between the two positions presented as a list of waypoints stored in the corners array.
/// </summary>
/// <param name="startPosition">The start position.</param>
/// <param name="endPosition">The end position.</param>
/// <param name="resultPath">The result path.</param>
/// <param name="resultPath">The result path flags.</param>
/// <returns>True if found valid path between given two points (it may be partial), otherwise false if failed.</returns>
bool FindPath(const Vector3& startPosition, const Vector3& endPosition, Array<Vector3, HeapAllocation>& resultPath, NavMeshPathFlags& resultFlags) const;
/// <summary>
/// Tests the path between the two positions (non-partial).