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#include "navmesh.hpp"
#include "worldspacedata.hpp"
#include <components/debug/debuglog.hpp>
#include <components/detournavigator/generatenavmeshtile.hpp>
#include <components/detournavigator/gettilespositions.hpp>
#include <components/detournavigator/navmeshdb.hpp>
#include <components/detournavigator/navmeshdbutils.hpp>
#include <components/detournavigator/preparednavmeshdata.hpp>
#include <components/detournavigator/recastmesh.hpp>
#include <components/detournavigator/recastmeshprovider.hpp>
#include <components/detournavigator/serialization.hpp>
#include <components/detournavigator/tileposition.hpp>
#include <components/misc/progressreporter.hpp>
#include <components/sceneutil/workqueue.hpp>
#include <components/sqlite3/transaction.hpp>
#include <osg/Vec3f>
#include <atomic>
#include <chrono>
#include <cstddef>
#include <utility>
#include <vector>
namespace NavMeshTool
{
namespace
{
using DetourNavigator::GenerateNavMeshTile;
using DetourNavigator::NavMeshDb;
using DetourNavigator::NavMeshTileInfo;
using DetourNavigator::PreparedNavMeshData;
using DetourNavigator::RecastMeshProvider;
using DetourNavigator::MeshSource;
using DetourNavigator::Settings;
using DetourNavigator::ShapeId;
using DetourNavigator::TileId;
using DetourNavigator::TilePosition;
using DetourNavigator::TileVersion;
using Sqlite3::Transaction;
void logGeneratedTiles(std::size_t provided, std::size_t expected)
{
Log(Debug::Info) << provided << "/" << expected << " ("
<< (static_cast<double>(provided) / static_cast<double>(expected) * 100)
<< "%) navmesh tiles are generated";
}
struct LogGeneratedTiles
{
void operator()(std::size_t provided, std::size_t expected) const
{
logGeneratedTiles(provided, expected);
}
};
class NavMeshTileConsumer final : public DetourNavigator::NavMeshTileConsumer
{
public:
std::atomic_size_t mExpected {0};
explicit NavMeshTileConsumer(NavMeshDb&& db)
: mDb(std::move(db))
, mTransaction(mDb.startTransaction())
, mNextTileId(mDb.getMaxTileId() + 1)
, mNextShapeId(mDb.getMaxShapeId() + 1)
{}
std::size_t getProvided() const { return mProvided.load(); }
std::size_t getInserted() const { return mInserted.load(); }
std::size_t getUpdated() const { return mUpdated.load(); }
std::int64_t resolveMeshSource(const MeshSource& source) override
{
const std::lock_guard lock(mMutex);
return DetourNavigator::resolveMeshSource(mDb, source, mNextShapeId);
}
std::optional<NavMeshTileInfo> find(const std::string& worldspace, const TilePosition &tilePosition,
const std::vector<std::byte> &input) override
{
std::optional<NavMeshTileInfo> result;
std::lock_guard lock(mMutex);
if (const auto tile = mDb.findTile(worldspace, tilePosition, input))
{
NavMeshTileInfo info;
info.mTileId = tile->mTileId;
info.mVersion = tile->mVersion;
result.emplace(info);
}
return result;
}
void ignore() override { report(); }
void insert(const std::string& worldspace, const TilePosition& tilePosition, std::int64_t version,
const std::vector<std::byte>& input, PreparedNavMeshData& data) override
{
data.mUserId = static_cast<unsigned>(mNextTileId);
{
std::lock_guard lock(mMutex);
mDb.insertTile(mNextTileId, worldspace, tilePosition, TileVersion {version}, input, serialize(data));
++mNextTileId.t;
}
++mInserted;
report();
}
void update(std::int64_t tileId, std::int64_t version, PreparedNavMeshData& data) override
{
data.mUserId = static_cast<unsigned>(tileId);
{
std::lock_guard lock(mMutex);
mDb.updateTile(TileId {tileId}, TileVersion {version}, serialize(data));
}
++mUpdated;
report();
}
void wait()
{
constexpr std::size_t tilesPerTransaction = 3000;
std::unique_lock lock(mMutex);
while (mProvided < mExpected)
{
mHasTile.wait(lock);
if (mProvided % tilesPerTransaction == 0)
{
mTransaction.commit();
mTransaction = mDb.startTransaction();
}
}
logGeneratedTiles(mProvided, mExpected);
}
void commit() { mTransaction.commit(); }
private:
std::atomic_size_t mProvided {0};
std::atomic_size_t mInserted {0};
std::atomic_size_t mUpdated {0};
std::mutex mMutex;
NavMeshDb mDb;
Transaction mTransaction;
TileId mNextTileId;
std::condition_variable mHasTile;
Misc::ProgressReporter<LogGeneratedTiles> mReporter;
ShapeId mNextShapeId;
void report()
{
mReporter(mProvided + 1, mExpected);
++mProvided;
mHasTile.notify_one();
}
};
}
void generateAllNavMeshTiles(const osg::Vec3f& agentHalfExtents, const Settings& settings,
const std::size_t threadsNumber, WorldspaceData& data, NavMeshDb&& db)
{
Log(Debug::Info) << "Generating navmesh tiles by " << threadsNumber << " parallel workers...";
SceneUtil::WorkQueue workQueue(threadsNumber);
auto navMeshTileConsumer = std::make_shared<NavMeshTileConsumer>(std::move(db));
std::size_t tiles = 0;
for (const std::unique_ptr<WorldspaceNavMeshInput>& input : data.mNavMeshInputs)
{
DetourNavigator::getTilesPositions(
Misc::Convert::toOsg(input->mAabb.m_min), Misc::Convert::toOsg(input->mAabb.m_max), settings.mRecast,
[&] (const TilePosition& tilePosition)
{
workQueue.addWorkItem(new GenerateNavMeshTile(
input->mWorldspace,
tilePosition,
RecastMeshProvider(input->mTileCachedRecastMeshManager),
agentHalfExtents,
settings,
navMeshTileConsumer
));
++tiles;
});
navMeshTileConsumer->mExpected = tiles;
}
navMeshTileConsumer->wait();
navMeshTileConsumer->commit();
Log(Debug::Info) << "Generated navmesh for " << navMeshTileConsumer->getProvided() << " tiles, "
<< navMeshTileConsumer->getInserted() << " are inserted and "
<< navMeshTileConsumer->getUpdated() << " updated";
}
}
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