OpenMW/components/detournavigator/navigatorutils.cpp

#include "navigatorutils.hpp"
#include "findrandompointaroundcircle.hpp"
#include "navigator.hpp"
#include "raycast.hpp"

namespace DetourNavigator
{
    std::optional<osg::Vec3f> findRandomPointAroundCircle(const Navigator& navigator, const AgentBounds& agentBounds,
        const osg::Vec3f& start, const float maxRadius, const Flags includeFlags, float (*prng)())
    {
        const auto navMesh = navigator.getNavMesh(agentBounds);
        if (!navMesh)
            return std::nullopt;
        const Settings& settings = navigator.getSettings();
        const auto locked = navMesh->lock();
        const auto result = DetourNavigator::findRandomPointAroundCircle(locked->getQuery(),
            toNavMeshCoordinates(settings.mRecast, agentBounds.mHalfExtents),
            toNavMeshCoordinates(settings.mRecast, start), toNavMeshCoordinates(settings.mRecast, maxRadius),
            includeFlags, prng);
        if (!result)
            return std::nullopt;
        return std::optional<osg::Vec3f>(fromNavMeshCoordinates(settings.mRecast, *result));
    }

    std::optional<osg::Vec3f> raycast(const Navigator& navigator, const AgentBounds& agentBounds,
        const osg::Vec3f& start, const osg::Vec3f& end, const Flags includeFlags)
    {
        const auto navMesh = navigator.getNavMesh(agentBounds);
        if (navMesh == nullptr)
            return std::nullopt;
        const Settings& settings = navigator.getSettings();
        const auto locked = navMesh->lock();
        const auto result = DetourNavigator::raycast(locked->getQuery(),
            toNavMeshCoordinates(settings.mRecast, agentBounds.mHalfExtents),
            toNavMeshCoordinates(settings.mRecast, start), toNavMeshCoordinates(settings.mRecast, end), includeFlags);
        if (!result)
            return std::nullopt;
        return fromNavMeshCoordinates(settings.mRecast, *result);
    }
}