Use version instead of generation and revision for recast mesh

apps/benchmarks/detournavigator/navmeshtilescache.cpp

@@ -140,12 +140,14 @@ namespace
         const CollisionShapeType agentShapeType = CollisionShapeType::Aabb;
         const osg::Vec3f agentHalfExtents = generateAgentHalfExtents(0.5, 1.5, random);
         const TilePosition tilePosition = generateVec2i(10000, random);
-        const std::size_t generation = std::uniform_int_distribution<std::size_t>(0, 100)(random);
-        const std::size_t revision = std::uniform_int_distribution<std::size_t>(0, 10000)(random);
+        const Version version {
+            .mGeneration = std::uniform_int_distribution<std::size_t>(0, 100)(random),
+            .mRevision = std::uniform_int_distribution<std::size_t>(0, 10000)(random),
+        };
         Mesh mesh = generateMesh(triangles, random);
         std::vector<CellWater> water;
         generateWater(std::back_inserter(water), 1, random);
-        RecastMesh recastMesh(generation, revision, std::move(mesh), std::move(water),
+        RecastMesh recastMesh(version, std::move(mesh), std::move(water),
                               {generateHeightfield(random)}, {generateFlatHeightfield(random)}, {});
         return Key {AgentBounds {agentShapeType, agentHalfExtents}, tilePosition, std::move(recastMesh)};
     }

apps/openmw/mwrender/recastmesh.cpp

@@ -53,8 +53,7 @@ namespace MWRender
                 continue;
             }
 
-            if (it->second.mGeneration != tile->second->getGeneration()
-                || it->second.mRevision != tile->second->getRevision())
+            if (it->second.mVersion != tile->second->getVersion())
             {
                 const auto group = SceneUtil::createRecastMeshGroup(*tile->second, settings.mRecast);
                 MWBase::Environment::get().getResourceSystem()->getSceneManager()->recreateShaders(group, "debug");
@@ -62,8 +61,7 @@ namespace MWRender
                 mRootNode->removeChild(it->second.mValue);
                 mRootNode->addChild(group);
                 it->second.mValue = group;
-                it->second.mGeneration = tile->second->getGeneration();
-                it->second.mRevision = tile->second->getRevision();
+                it->second.mVersion = tile->second->getVersion();
             }
 
             ++it;
@@ -76,7 +74,7 @@ namespace MWRender
             const auto group = SceneUtil::createRecastMeshGroup(*tile.second, settings.mRecast);
             MWBase::Environment::get().getResourceSystem()->getSceneManager()->recreateShaders(group, "debug");
             group->setNodeMask(Mask_Debug);
-            mGroups.emplace(tile.first, Group {tile.second->getGeneration(), tile.second->getRevision(), group});
+            mGroups.emplace(tile.first, Group {tile.second->getVersion(), group});
             mRootNode->addChild(group);
         }
     }

apps/openmw/mwrender/recastmesh.hpp

@@ -2,6 +2,7 @@
 #define OPENMW_MWRENDER_RECASTMESH_H
 
 #include <components/detournavigator/recastmeshtiles.hpp>
+#include <components/detournavigator/version.hpp>
 
 #include <osg/ref_ptr>
 
@@ -44,8 +45,7 @@ namespace MWRender
     private:
         struct Group
         {
-            std::size_t mGeneration;
-            std::size_t mRevision;
+            DetourNavigator::Version mVersion;
             osg::ref_ptr<osg::Group> mValue;
         };
 

apps/openmw_test_suite/detournavigator/navmeshtilescache.cpp

@@ -97,14 +97,13 @@ namespace
     {
         const AgentBounds mAgentBounds {CollisionShapeType::Aabb, {1, 2, 3}};
         const TilePosition mTilePosition {0, 0};
-        const std::size_t mGeneration = 0;
-        const std::size_t mRevision = 0;
+        const Version mVersion {0, 0};
         const Mesh mMesh {makeMesh()};
         const std::vector<CellWater> mWater {};
         const std::vector<Heightfield> mHeightfields {};
         const std::vector<FlatHeightfield> mFlatHeightfields {};
         const std::vector<MeshSource> mSources {};
-        const RecastMesh mRecastMesh {mGeneration, mRevision, mMesh, mWater, mHeightfields, mFlatHeightfields, mSources};
+        const RecastMesh mRecastMesh {mVersion, mMesh, mWater, mHeightfields, mFlatHeightfields, mSources};
         std::unique_ptr<PreparedNavMeshData> mPreparedNavMeshData {makePeparedNavMeshData(3)};
 
         const std::size_t mRecastMeshSize = sizeof(mRecastMesh) + getSize(mRecastMesh);
@@ -192,7 +191,7 @@ namespace
         const std::size_t maxSize = 1;
         NavMeshTilesCache cache(maxSize);
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh unexistentRecastMesh(mGeneration, mRevision, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
+        const RecastMesh unexistentRecastMesh(mVersion, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
 
         cache.set(mAgentBounds, mTilePosition, mRecastMesh, std::move(mPreparedNavMeshData));
         EXPECT_FALSE(cache.get(mAgentBounds, mTilePosition, unexistentRecastMesh));
@@ -204,7 +203,7 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh anotherRecastMesh(mGeneration, mRevision, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
+        const RecastMesh anotherRecastMesh(mVersion, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
         auto anotherPreparedNavMeshData = makePeparedNavMeshData(3);
         const auto copy = clone(*anotherPreparedNavMeshData);
 
@@ -222,7 +221,7 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh anotherRecastMesh(mGeneration, mRevision, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
+        const RecastMesh anotherRecastMesh(mVersion, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
         auto anotherPreparedNavMeshData = makePeparedNavMeshData(3);
 
         const auto value = cache.set(mAgentBounds, mTilePosition, mRecastMesh,
@@ -238,12 +237,12 @@ namespace
         const auto copy = clone(*mPreparedNavMeshData);
 
         const std::vector<CellWater> leastRecentlySetWater(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh leastRecentlySetRecastMesh(mGeneration, mRevision, mMesh, leastRecentlySetWater,
+        const RecastMesh leastRecentlySetRecastMesh(mVersion, mMesh, leastRecentlySetWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto leastRecentlySetData = makePeparedNavMeshData(3);
 
         const std::vector<CellWater> mostRecentlySetWater(1, CellWater {osg::Vec2i(), Water {2, 0.0f}});
-        const RecastMesh mostRecentlySetRecastMesh(mGeneration, mRevision, mMesh, mostRecentlySetWater,
+        const RecastMesh mostRecentlySetRecastMesh(mVersion, mMesh, mostRecentlySetWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto mostRecentlySetData = makePeparedNavMeshData(3);
 
@@ -266,13 +265,13 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> leastRecentlyUsedWater(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh leastRecentlyUsedRecastMesh(mGeneration, mRevision, mMesh, leastRecentlyUsedWater,
+        const RecastMesh leastRecentlyUsedRecastMesh(mVersion, mMesh, leastRecentlyUsedWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto leastRecentlyUsedData = makePeparedNavMeshData(3);
         const auto leastRecentlyUsedCopy = clone(*leastRecentlyUsedData);
 
         const std::vector<CellWater> mostRecentlyUsedWater(1, CellWater {osg::Vec2i(), Water {2, 0.0f}});
-        const RecastMesh mostRecentlyUsedRecastMesh(mGeneration, mRevision, mMesh, mostRecentlyUsedWater,
+        const RecastMesh mostRecentlyUsedRecastMesh(mVersion, mMesh, mostRecentlyUsedWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto mostRecentlyUsedData = makePeparedNavMeshData(3);
         const auto mostRecentlyUsedCopy = clone(*mostRecentlyUsedData);
@@ -307,7 +306,7 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh tooLargeRecastMesh(mGeneration, mRevision, mMesh, water,
+        const RecastMesh tooLargeRecastMesh(mVersion, mMesh, water,
                     mHeightfields, mFlatHeightfields, mSources);
         auto tooLargeData = makePeparedNavMeshData(10);
 
@@ -322,12 +321,12 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> anotherWater(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh anotherRecastMesh(mGeneration, mRevision, mMesh, anotherWater,
+        const RecastMesh anotherRecastMesh(mVersion, mMesh, anotherWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto anotherData = makePeparedNavMeshData(3);
 
         const std::vector<CellWater> tooLargeWater(1, CellWater {osg::Vec2i(), Water {2, 0.0f}});
-        const RecastMesh tooLargeRecastMesh(mGeneration, mRevision, mMesh, tooLargeWater,
+        const RecastMesh tooLargeRecastMesh(mVersion, mMesh, tooLargeWater,
                     mHeightfields, mFlatHeightfields, mSources);
         auto tooLargeData = makePeparedNavMeshData(10);
 
@@ -348,7 +347,7 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh anotherRecastMesh(mGeneration, mRevision, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
+        const RecastMesh anotherRecastMesh(mVersion, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
         auto anotherData = makePeparedNavMeshData(3);
 
         const auto firstCopy = cache.set(mAgentBounds, mTilePosition, mRecastMesh, std::move(mPreparedNavMeshData));
@@ -367,7 +366,7 @@ namespace
         NavMeshTilesCache cache(maxSize);
 
         const std::vector<CellWater> water(1, CellWater {osg::Vec2i(), Water {1, 0.0f}});
-        const RecastMesh anotherRecastMesh(mGeneration, mRevision, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
+        const RecastMesh anotherRecastMesh(mVersion, mMesh, water, mHeightfields, mFlatHeightfields, mSources);
         auto anotherData = makePeparedNavMeshData(3);
 
         cache.set(mAgentBounds, mTilePosition, mRecastMesh, std::move(mPreparedNavMeshData));

apps/openmw_test_suite/detournavigator/recastmeshbuilder.cpp

@@ -58,8 +58,7 @@ namespace
     struct DetourNavigatorRecastMeshBuilderTest : Test
     {
         TileBounds mBounds;
-        const std::size_t mGeneration = 0;
-        const std::size_t mRevision = 0;
+        const Version mVersion {0, 0};
         const osg::ref_ptr<const Resource::BulletShape> mSource {nullptr};
         const ObjectTransform mObjectTransform {ESM::Position {{0, 0, 0}, {0, 0, 0}}, 0.0f};
 
@@ -75,7 +74,7 @@ namespace
     TEST_F(DetourNavigatorRecastMeshBuilderTest, create_for_empty_should_return_empty)
     {
         RecastMeshBuilder builder(mBounds);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>());
         EXPECT_EQ(recastMesh->getMesh().getIndices(), std::vector<int>());
         EXPECT_EQ(recastMesh->getMesh().getAreaTypes(), std::vector<AreaType>());
@@ -90,7 +89,7 @@ namespace
         RecastMeshBuilder builder(mBounds);
         builder.addObject(static_cast<const btCollisionShape&>(shape), btTransform::getIdentity(),
                           AreaType_ground, mSource, mObjectTransform);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -1, -1, 0,
             -1, 1, 0,
@@ -111,7 +110,7 @@ namespace
             btTransform(btMatrix3x3::getIdentity().scaled(btVector3(1, 2, 3)), btVector3(1, 2, 3)),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             0, 0, 3,
             0, 4, 3,
@@ -128,7 +127,7 @@ namespace
         RecastMeshBuilder builder(mBounds);
         builder.addObject(static_cast<const btCollisionShape&>(shape), btTransform::getIdentity(),
                           AreaType_ground, mSource, mObjectTransform);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -0.5, -0.5, 0,
             -0.5, 0.5, 0,
@@ -145,7 +144,7 @@ namespace
         RecastMeshBuilder builder(mBounds);
         builder.addObject(static_cast<const btCollisionShape&>(shape), btTransform::getIdentity(),
                           AreaType_ground, mSource, mObjectTransform);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -1, -1, -2,
             -1, -1, 2,
@@ -192,7 +191,7 @@ namespace
             btTransform::getIdentity(),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -1, -1, -2,
             -1, -1, 0,
@@ -239,7 +238,7 @@ namespace
             btTransform(btMatrix3x3::getIdentity().scaled(btVector3(1, 2, 3)), btVector3(1, 2, 3)),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             0, 0, 3,
             0, 4, 3,
@@ -263,7 +262,7 @@ namespace
             btTransform(btMatrix3x3::getIdentity().scaled(btVector3(1, 2, 3)), btVector3(1, 2, 3)),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             1, 2, 12,
             1, 10, 12,
@@ -285,7 +284,7 @@ namespace
             btTransform::getIdentity(),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -3, -3, 0,
             -3, -2, 0,
@@ -312,7 +311,7 @@ namespace
             btTransform::getIdentity(),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -3, -3, 0,
             -3, -2, 0,
@@ -337,7 +336,7 @@ namespace
             static_cast<btScalar>(-osg::PI_4))),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_THAT(recastMesh->getMesh().getVertices(), Pointwise(FloatNear(1e-5f), std::vector<float>({
             0, -4.24264049530029296875f, 4.44089209850062616169452667236328125e-16f,
             0, -3.535533905029296875f, -0.707106769084930419921875f,
@@ -362,7 +361,7 @@ namespace
             static_cast<btScalar>(osg::PI_4))),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_THAT(recastMesh->getMesh().getVertices(), Pointwise(FloatNear(1e-5f), std::vector<float>({
             -4.24264049530029296875f, 0, 4.44089209850062616169452667236328125e-16f,
             -3.535533905029296875f, 0, -0.707106769084930419921875f,
@@ -387,7 +386,7 @@ namespace
             static_cast<btScalar>(osg::PI_4))),
             AreaType_ground, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_THAT(recastMesh->getMesh().getVertices(), Pointwise(FloatNear(1e-5f), std::vector<float>({
             -1.41421353816986083984375f, -1.1102230246251565404236316680908203125e-16f, 0,
             1.1102230246251565404236316680908203125e-16f, -1.41421353816986083984375f, 0,
@@ -416,7 +415,7 @@ namespace
             btTransform::getIdentity(),
             AreaType_null, mSource, mObjectTransform
         );
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -3, -3, 0,
             -3, -2, 0,
@@ -433,7 +432,7 @@ namespace
     {
         RecastMeshBuilder builder(mBounds);
         builder.addWater(osg::Vec2i(1, 2), Water {1000, 300.0f});
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getWater(), std::vector<CellWater>({
             CellWater {osg::Vec2i(1, 2), Water {1000, 300.0f}}
         }));
@@ -448,7 +447,7 @@ namespace
 
         RecastMeshBuilder builder(mBounds);
         builder.addObject(static_cast<const btCollisionShape&>(shape), btTransform::getIdentity(), AreaType_ground, mSource, mObjectTransform);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getMesh().getVertices(), std::vector<float>({
             -1, -1, 0,
             -1, 1, 0,
@@ -467,7 +466,7 @@ namespace
         mBounds.mMin = osg::Vec2f(100, 100);
         RecastMeshBuilder builder(mBounds);
         builder.addHeightfield(cellPosition, cellSize, height);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         EXPECT_EQ(recastMesh->getFlatHeightfields(), std::vector<FlatHeightfield>({
             FlatHeightfield {cellPosition, cellSize, height},
         }));
@@ -487,7 +486,7 @@ namespace
         const float maxHeight = 8;
         RecastMeshBuilder builder(mBounds);
         builder.addHeightfield(cellPosition, cellSize, heights.data(), size, minHeight, maxHeight);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         Heightfield expected;
         expected.mCellPosition = cellPosition;
         expected.mCellSize = cellSize;
@@ -519,7 +518,7 @@ namespace
         const float maxHeight = 8;
         RecastMeshBuilder builder(maxCellTileBounds(cellPosition, cellSize));
         builder.addHeightfield(cellPosition, cellSize, heights.data(), size, minHeight, maxHeight);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         Heightfield expected;
         expected.mCellPosition = cellPosition;
         expected.mCellSize = cellSize;
@@ -552,7 +551,7 @@ namespace
         mBounds.mMin = osg::Vec2f(750, 750);
         RecastMeshBuilder builder(mBounds);
         builder.addHeightfield(cellPosition, cellSize, heights.data(), size, minHeight, maxHeight);
-        const auto recastMesh = std::move(builder).create(mGeneration, mRevision);
+        const auto recastMesh = std::move(builder).create(mVersion);
         Heightfield expected;
         expected.mCellPosition = cellPosition;
         expected.mCellSize = cellSize;

components/detournavigator/asyncnavmeshupdater.cpp

@@ -513,9 +513,7 @@ namespace DetourNavigator
         const Job& job, const GuardedNavMeshCacheItem& navMeshCacheItem, const RecastMesh& recastMesh)
     {
         const Version navMeshVersion = navMeshCacheItem.lockConst()->getVersion();
-        mRecastMeshManager.get().reportNavMeshChange(job.mChangedTile,
-            Version {recastMesh.getGeneration(), recastMesh.getRevision()},
-            navMeshVersion);
+        mRecastMeshManager.get().reportNavMeshChange(job.mChangedTile, recastMesh.getVersion(), navMeshVersion);
 
         if (status == UpdateNavMeshStatus::removed || status == UpdateNavMeshStatus::lost)
         {

components/detournavigator/recastmesh.cpp

@@ -18,11 +18,10 @@ namespace DetourNavigator
         mAreaTypes = std::move(areaTypes);
     }
 
-    RecastMesh::RecastMesh(std::size_t generation, std::size_t revision, Mesh mesh, std::vector<CellWater> water,
+    RecastMesh::RecastMesh(const Version& version, Mesh mesh, std::vector<CellWater> water,
         std::vector<Heightfield> heightfields, std::vector<FlatHeightfield> flatHeightfields,
         std::vector<MeshSource> meshSources)
-        : mGeneration(generation)
-        , mRevision(revision)
+        : mVersion(version)
         , mMesh(std::move(mesh))
         , mWater(std::move(water))
         , mHeightfields(std::move(heightfields))

components/detournavigator/recastmesh.hpp

@@ -3,6 +3,7 @@
 
 #include "areatype.hpp"
 #include "objecttransform.hpp"
+#include "version.hpp"
 
 #include <components/bullethelpers/operators.hpp>
 #include <components/resource/bulletshape.hpp>
@@ -129,19 +130,11 @@ namespace DetourNavigator
     class RecastMesh
     {
     public:
-        RecastMesh(std::size_t generation, std::size_t revision, Mesh mesh, std::vector<CellWater> water,
+        explicit RecastMesh(const Version& version, Mesh mesh, std::vector<CellWater> water,
             std::vector<Heightfield> heightfields, std::vector<FlatHeightfield> flatHeightfields,
             std::vector<MeshSource> sources);
 
-        std::size_t getGeneration() const
-        {
-            return mGeneration;
-        }
-
-        std::size_t getRevision() const
-        {
-            return mRevision;
-        }
+        const Version& getVersion() const noexcept { return mVersion; }
 
         const Mesh& getMesh() const noexcept { return mMesh; }
 
@@ -163,8 +156,7 @@ namespace DetourNavigator
         const std::vector<MeshSource>& getMeshSources() const noexcept { return mMeshSources; }
 
     private:
-        std::size_t mGeneration;
-        std::size_t mRevision;
+        Version mVersion;
         Mesh mMesh;
         std::vector<CellWater> mWater;
         std::vector<Heightfield> mHeightfields;

components/detournavigator/recastmeshbuilder.cpp

@@ -272,13 +272,13 @@ namespace DetourNavigator
         mHeightfields.push_back(std::move(heightfield));
     }
 
-    std::shared_ptr<RecastMesh> RecastMeshBuilder::create(std::size_t generation, std::size_t revision) &&
+    std::shared_ptr<RecastMesh> RecastMeshBuilder::create(const Version& version) &&
     {
         mTriangles.erase(std::remove_if(mTriangles.begin(), mTriangles.end(), isNan), mTriangles.end());
         std::sort(mTriangles.begin(), mTriangles.end());
         std::sort(mWater.begin(), mWater.end());
         Mesh mesh = makeMesh(std::move(mTriangles));
-        return std::make_shared<RecastMesh>(generation, revision, std::move(mesh), std::move(mWater),
+        return std::make_shared<RecastMesh>(version, std::move(mesh), std::move(mWater),
                                             std::move(mHeightfields), std::move(mFlatHeightfields),
                                             std::move(mSources));
     }

components/detournavigator/recastmeshbuilder.hpp

@@ -58,7 +58,7 @@ namespace DetourNavigator
         void addHeightfield(const osg::Vec2i& cellPosition, int cellSize, const float* heights, std::size_t size,
             float minHeight, float maxHeight);
 
-        std::shared_ptr<RecastMesh> create(std::size_t generation, std::size_t revision) &&;
+        std::shared_ptr<RecastMesh> create(const Version& version) &&;
 
     private:
         const TileBounds mBounds;

components/detournavigator/recastmeshmanager.cpp

@@ -143,7 +143,7 @@ namespace DetourNavigator
         }
         for (const auto& [instance, objectTransform, shape, transform, areaType] : objects)
             builder.addObject(shape, transform, areaType, instance->getSource(), objectTransform);
-        return std::move(builder).create(mGeneration, revision);
+        return std::move(builder).create(Version {.mGeneration = mGeneration, .mRevision = revision});
     }
 
     bool RecastMeshManager::isEmpty() const