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scene.cpp
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scene.cpp
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#include "scene.hpp"
#include <atomic>
#include <chrono>
#include <limits>
#include <BulletCollision/CollisionDispatch/btCollisionObject.h>
#include <components/debug/debuglog.hpp>
#include <components/detournavigator/agentbounds.hpp>
#include <components/detournavigator/debug.hpp>
#include <components/detournavigator/heightfieldshape.hpp>
#include <components/detournavigator/navigator.hpp>
#include <components/detournavigator/updateguard.hpp>
#include <components/esm/esmterrain.hpp>
#include <components/esm/records.hpp>
#include <components/esm3/loadcell.hpp>
#include <components/loadinglistener/loadinglistener.hpp>
#include <components/misc/convert.hpp>
#include <components/misc/resourcehelpers.hpp>
#include <components/resource/resourcesystem.hpp>
#include <components/resource/scenemanager.hpp>
#include <components/sceneutil/positionattitudetransform.hpp>
#include <components/settings/values.hpp>
#include <components/vfs/pathutil.hpp>
#include "../mwbase/environment.hpp"
#include "../mwbase/luamanager.hpp"
#include "../mwbase/mechanicsmanager.hpp"
#include "../mwbase/soundmanager.hpp"
#include "../mwbase/windowmanager.hpp"
#include "../mwbase/world.hpp"
#include "../mwrender/landmanager.hpp"
#include "../mwrender/postprocessor.hpp"
#include "../mwrender/renderingmanager.hpp"
#include "../mwphysics/actor.hpp"
#include "../mwphysics/heightfield.hpp"
#include "../mwphysics/object.hpp"
#include "../mwphysics/physicssystem.hpp"
#include "../mwworld/actionteleport.hpp"
#include "cellpreloader.hpp"
#include "cellstore.hpp"
#include "cellvisitors.hpp"
#include "class.hpp"
#include "esmstore.hpp"
#include "localscripts.hpp"
#include "player.hpp"
#include "worldimp.hpp"
namespace
{
using MWWorld::RotationOrder;
osg::Quat makeActorOsgQuat(const ESM::Position& position)
{
return osg::Quat(position.rot[2], osg::Vec3(0, 0, -1));
}
osg::Quat makeInversedOrderObjectOsgQuat(const ESM::Position& position)
{
const float xr = position.rot[0];
const float yr = position.rot[1];
const float zr = position.rot[2];
return osg::Quat(xr, osg::Vec3(-1, 0, 0)) * osg::Quat(yr, osg::Vec3(0, -1, 0))
* osg::Quat(zr, osg::Vec3(0, 0, -1));
}
osg::Quat makeInverseNodeRotation(const MWWorld::Ptr& ptr)
{
const auto& pos = ptr.getRefData().getPosition();
return ptr.getClass().isActor() ? makeActorOsgQuat(pos) : makeInversedOrderObjectOsgQuat(pos);
}
osg::Quat makeDirectNodeRotation(const MWWorld::Ptr& ptr)
{
const auto& pos = ptr.getRefData().getPosition();
return ptr.getClass().isActor() ? makeActorOsgQuat(pos) : Misc::Convert::makeOsgQuat(pos);
}
osg::Quat makeNodeRotation(const MWWorld::Ptr& ptr, RotationOrder order)
{
if (order == RotationOrder::inverse)
return makeInverseNodeRotation(ptr);
return makeDirectNodeRotation(ptr);
}
void setNodeRotation(const MWWorld::Ptr& ptr, MWRender::RenderingManager& rendering, const osg::Quat& rotation)
{
if (ptr.getRefData().getBaseNode())
rendering.rotateObject(ptr, rotation);
}
std::string getModel(const MWWorld::Ptr& ptr)
{
if (Misc::ResourceHelpers::isHiddenMarker(ptr.getCellRef().getRefId()))
return {};
return ptr.getClass().getCorrectedModel(ptr);
}
// Null node meant to distinguish objects that aren't in the scene from paged objects
// TODO: find a more clever way to make paging exclusion more reliable?
static osg::ref_ptr<SceneUtil::PositionAttitudeTransform> pagedNode = new SceneUtil::PositionAttitudeTransform;
void addObject(const MWWorld::Ptr& ptr, const MWWorld::World& world, const std::vector<ESM::RefNum>& pagedRefs,
MWPhysics::PhysicsSystem& physics, MWRender::RenderingManager& rendering)
{
if (ptr.getRefData().getBaseNode() || physics.getActor(ptr))
{
Log(Debug::Warning) << "Warning: Tried to add " << ptr.getCellRef().getRefId() << " to the scene twice";
return;
}
std::string model = getModel(ptr);
const auto rotation = makeDirectNodeRotation(ptr);
ESM::RefNum refnum = ptr.getCellRef().getRefNum();
if (!refnum.hasContentFile() || !std::binary_search(pagedRefs.begin(), pagedRefs.end(), refnum))
ptr.getClass().insertObjectRendering(ptr, model, rendering);
else
ptr.getRefData().setBaseNode(pagedNode);
setNodeRotation(ptr, rendering, rotation);
if (ptr.getClass().useAnim())
MWBase::Environment::get().getMechanicsManager()->add(ptr);
if (ptr.getClass().isActor())
rendering.addWaterRippleEmitter(ptr);
// Restore effect particles
world.applyLoopingParticles(ptr);
if (!model.empty())
ptr.getClass().insertObject(ptr, model, rotation, physics);
MWBase::Environment::get().getLuaManager()->objectAddedToScene(ptr);
}
void addObject(const MWWorld::Ptr& ptr, const MWWorld::World& world, const MWPhysics::PhysicsSystem& physics,
float& lowestPoint, bool isInterior, DetourNavigator::Navigator& navigator,
const DetourNavigator::UpdateGuard* navigatorUpdateGuard = nullptr)
{
if (const auto object = physics.getObject(ptr))
{
// Find the lowest point of this collision object in world space from its AABB if interior
// this point is used to determine the infinite fall cutoff from lowest point in the cell
if (isInterior)
{
btVector3 aabbMin;
btVector3 aabbMax;
const auto transform = object->getTransform();
object->getShapeInstance()->mCollisionShape->getAabb(transform, aabbMin, aabbMax);
lowestPoint = std::min(lowestPoint, static_cast<float>(aabbMin.z()));
}
const DetourNavigator::ObjectTransform objectTransform{ ptr.getRefData().getPosition(),
ptr.getCellRef().getScale() };
if (ptr.getClass().isDoor() && !ptr.getCellRef().getTeleport())
{
btVector3 aabbMin;
btVector3 aabbMax;
object->getShapeInstance()->mCollisionShape->getAabb(btTransform::getIdentity(), aabbMin, aabbMax);
const auto center = (aabbMax + aabbMin) * 0.5f;
const auto distanceFromDoor = world.getMaxActivationDistance() * 0.5f;
const auto toPoint = aabbMax.x() - aabbMin.x() < aabbMax.y() - aabbMin.y()
? btVector3(distanceFromDoor, 0, 0)
: btVector3(0, distanceFromDoor, 0);
const auto transform = object->getTransform();
const btTransform closedDoorTransform(
Misc::Convert::makeBulletQuaternion(ptr.getCellRef().getPosition()), transform.getOrigin());
const auto start = Misc::Convert::toOsg(closedDoorTransform(center + toPoint));
const auto startPoint = physics.castRay(start, start - osg::Vec3f(0, 0, 1000), { ptr }, {},
MWPhysics::CollisionType_World | MWPhysics::CollisionType_HeightMap
| MWPhysics::CollisionType_Water);
const auto connectionStart = startPoint.mHit ? startPoint.mHitPos : start;
const auto end = Misc::Convert::toOsg(closedDoorTransform(center - toPoint));
const auto endPoint = physics.castRay(end, end - osg::Vec3f(0, 0, 1000), { ptr }, {},
MWPhysics::CollisionType_World | MWPhysics::CollisionType_HeightMap
| MWPhysics::CollisionType_Water);
const auto connectionEnd = endPoint.mHit ? endPoint.mHitPos : end;
navigator.addObject(DetourNavigator::ObjectId(object),
DetourNavigator::DoorShapes(
object->getShapeInstance(), objectTransform, connectionStart, connectionEnd),
transform, navigatorUpdateGuard);
}
else if (object->getShapeInstance()->mVisualCollisionType == Resource::VisualCollisionType::None)
{
navigator.addObject(DetourNavigator::ObjectId(object),
DetourNavigator::ObjectShapes(object->getShapeInstance(), objectTransform), object->getTransform(),
navigatorUpdateGuard);
}
}
else if (physics.getActor(ptr))
{
const DetourNavigator::AgentBounds agentBounds = world.getPathfindingAgentBounds(ptr);
if (!navigator.addAgent(agentBounds))
Log(Debug::Warning) << "Agent bounds are not supported by navigator for " << ptr.toString() << ": "
<< agentBounds;
}
}
struct InsertVisitor
{
MWWorld::CellStore& mCell;
Loading::Listener* mLoadingListener;
std::vector<MWWorld::Ptr> mToInsert;
InsertVisitor(MWWorld::CellStore& cell, Loading::Listener* loadingListener);
bool operator()(const MWWorld::Ptr& ptr);
template <class AddObject>
void insert(AddObject&& addObject);
};
InsertVisitor::InsertVisitor(MWWorld::CellStore& cell, Loading::Listener* loadingListener)
: mCell(cell)
, mLoadingListener(loadingListener)
{
}
bool InsertVisitor::operator()(const MWWorld::Ptr& ptr)
{
// do not insert directly as we can't modify the cell from within the visitation
// CreatureLevList::insertObjectRendering may spawn a new creature
mToInsert.push_back(ptr);
return true;
}
template <class AddObject>
void InsertVisitor::insert(AddObject&& addObject)
{
for (MWWorld::Ptr& ptr : mToInsert)
{
if (!ptr.mRef->isDeleted() && ptr.getRefData().isEnabled())
{
try
{
addObject(ptr);
}
catch (const std::exception& e)
{
Log(Debug::Error) << "failed to render '" << ptr.getCellRef().getRefId() << "': " << e.what();
}
}
if (mLoadingListener != nullptr)
mLoadingListener->increaseProgress(1);
}
}
int getCellPositionDistanceToOrigin(const std::pair<int, int>& cellPosition)
{
return std::abs(cellPosition.first) + std::abs(cellPosition.second);
}
bool isCellInCollection(ESM::ExteriorCellLocation cellIndex, MWWorld::Scene::CellStoreCollection& collection)
{
for (auto* cell : collection)
{
assert(cell->getCell()->isExterior());
if (cellIndex == cell->getCell()->getExteriorCellLocation())
return true;
}
return false;
}
bool removeFromSorted(ESM::RefNum refNum, std::vector<ESM::RefNum>& pagedRefs)
{
const auto it = std::lower_bound(pagedRefs.begin(), pagedRefs.end(), refNum);
if (it == pagedRefs.end() || *it != refNum)
return false;
pagedRefs.erase(it);
return true;
}
template <class Function>
void iterateOverCellsAround(int cellX, int cellY, int range, Function&& f)
{
for (int x = cellX - range, lastX = cellX + range; x <= lastX; ++x)
for (int y = cellY - range, lastY = cellY + range; y <= lastY; ++y)
f(x, y);
}
void sortCellsToLoad(int centerX, int centerY, std::vector<std::pair<int, int>>& cells)
{
const auto getDistanceToPlayerCell = [&](const std::pair<int, int>& cellPosition) {
return std::abs(cellPosition.first - centerX) + std::abs(cellPosition.second - centerY);
};
const auto getCellPositionPriority = [&](const std::pair<int, int>& cellPosition) {
return std::make_pair(getDistanceToPlayerCell(cellPosition), getCellPositionDistanceToOrigin(cellPosition));
};
std::sort(cells.begin(), cells.end(), [&](const std::pair<int, int>& lhs, const std::pair<int, int>& rhs) {
return getCellPositionPriority(lhs) < getCellPositionPriority(rhs);
});
}
}
namespace MWWorld
{
void Scene::removeFromPagedRefs(const Ptr& ptr)
{
ESM::RefNum refnum = ptr.getCellRef().getRefNum();
if (refnum.hasContentFile() && removeFromSorted(refnum, mPagedRefs))
{
if (!ptr.getRefData().getBaseNode())
return;
ptr.getClass().insertObjectRendering(ptr, getModel(ptr), mRendering);
setNodeRotation(ptr, mRendering, makeNodeRotation(ptr, RotationOrder::direct));
reloadTerrain();
}
}
bool Scene::isPagedRef(const Ptr& ptr) const
{
return ptr.getRefData().getBaseNode() == pagedNode.get();
}
void Scene::updateObjectRotation(const Ptr& ptr, RotationOrder order)
{
const auto rot = makeNodeRotation(ptr, order);
setNodeRotation(ptr, mRendering, rot);
mPhysics->updateRotation(ptr, rot);
}
void Scene::updateObjectScale(const Ptr& ptr)
{
float scale = ptr.getCellRef().getScale();
osg::Vec3f scaleVec(scale, scale, scale);
ptr.getClass().adjustScale(ptr, scaleVec, true);
mRendering.scaleObject(ptr, scaleVec);
mPhysics->updateScale(ptr);
}
void Scene::update(float duration)
{
if (mChangeCellGridRequest.has_value())
{
changeCellGrid(mChangeCellGridRequest->mPosition, mChangeCellGridRequest->mCellIndex,
mChangeCellGridRequest->mChangeEvent);
mChangeCellGridRequest.reset();
}
mPreloader->updateCache(mRendering.getReferenceTime());
preloadCells(duration);
}
void Scene::unloadCell(CellStore* cell, const DetourNavigator::UpdateGuard* navigatorUpdateGuard)
{
if (mActiveCells.find(cell) == mActiveCells.end())
return;
Log(Debug::Info) << "Unloading cell " << cell->getCell()->getDescription();
ListAndResetObjectsVisitor visitor;
cell->forEach(visitor);
for (const auto& ptr : visitor.mObjects)
{
if (const auto object = mPhysics->getObject(ptr))
{
if (object->getShapeInstance()->mVisualCollisionType == Resource::VisualCollisionType::None)
mNavigator.removeObject(DetourNavigator::ObjectId(object), navigatorUpdateGuard);
mPhysics->remove(ptr);
ptr.mRef->mData.mPhysicsPostponed = false;
}
else if (mPhysics->getActor(ptr))
{
mNavigator.removeAgent(mWorld.getPathfindingAgentBounds(ptr));
mRendering.removeActorPath(ptr);
mPhysics->remove(ptr);
}
MWBase::Environment::get().getLuaManager()->objectRemovedFromScene(ptr);
}
const auto cellX = cell->getCell()->getGridX();
const auto cellY = cell->getCell()->getGridY();
if (cell->getCell()->isExterior())
{
mNavigator.removeHeightfield(osg::Vec2i(cellX, cellY), navigatorUpdateGuard);
mPhysics->removeHeightField(cellX, cellY);
}
if (cell->getCell()->hasWater())
mNavigator.removeWater(osg::Vec2i(cellX, cellY), navigatorUpdateGuard);
ESM::visit(ESM::VisitOverload{
[&](const ESM::Cell& cell) {
if (const auto pathgrid = mWorld.getStore().get<ESM::Pathgrid>().search(cell))
mNavigator.removePathgrid(*pathgrid);
},
[&](const ESM4::Cell& cell) {},
},
*cell->getCell());
MWBase::Environment::get().getMechanicsManager()->drop(cell);
mRendering.removeCell(cell);
MWBase::Environment::get().getWindowManager()->removeCell(cell);
mWorld.getLocalScripts().clearCell(cell);
MWBase::Environment::get().getSoundManager()->stopSound(cell);
mActiveCells.erase(cell);
// Clean up any effects that may have been spawned while unloading all cells
if (mActiveCells.empty())
mRendering.notifyWorldSpaceChanged();
}
void Scene::loadCell(CellStore& cell, Loading::Listener* loadingListener, bool respawn, const osg::Vec3f& position,
const DetourNavigator::UpdateGuard* navigatorUpdateGuard)
{
using DetourNavigator::HeightfieldShape;
assert(mActiveCells.find(&cell) == mActiveCells.end());
mActiveCells.insert(&cell);
Log(Debug::Info) << "Loading cell " << cell.getCell()->getDescription();
const int cellX = cell.getCell()->getGridX();
const int cellY = cell.getCell()->getGridY();
const MWWorld::Cell& cellVariant = *cell.getCell();
ESM::RefId worldspace = cellVariant.getWorldSpace();
ESM::ExteriorCellLocation cellIndex(cellX, cellY, worldspace);
if (cellVariant.isExterior())
{
osg::ref_ptr<const ESMTerrain::LandObject> land = mRendering.getLandManager()->getLand(cellIndex);
const ESM::LandData* data = land ? land->getData(ESM::Land::DATA_VHGT) : nullptr;
const int verts = ESM::getLandSize(worldspace);
const int worldsize = ESM::getCellSize(worldspace);
if (data)
{
mPhysics->addHeightField(data->getHeights().data(), cellX, cellY, worldsize, verts,
data->getMinHeight(), data->getMaxHeight(), land.get());
}
else if (!ESM::isEsm4Ext(worldspace))
{
static const std::vector<float> defaultHeight(verts * verts, ESM::Land::DEFAULT_HEIGHT);
mPhysics->addHeightField(defaultHeight.data(), cellX, cellY, worldsize, verts,
ESM::Land::DEFAULT_HEIGHT, ESM::Land::DEFAULT_HEIGHT, land.get());
}
if (const auto heightField = mPhysics->getHeightField(cellX, cellY))
{
const osg::Vec2i cellPosition(cellX, cellY);
const btVector3& origin = heightField->getCollisionObject()->getWorldTransform().getOrigin();
const osg::Vec3f shift(origin.x(), origin.y(), origin.z());
const HeightfieldShape shape = [&]() -> HeightfieldShape {
if (data == nullptr)
{
return DetourNavigator::HeightfieldPlane{ static_cast<float>(ESM::Land::DEFAULT_HEIGHT) };
}
else
{
DetourNavigator::HeightfieldSurface heights;
heights.mHeights = data->getHeights().data();
heights.mSize = static_cast<std::size_t>(data->getLandSize());
heights.mMinHeight = data->getMinHeight();
heights.mMaxHeight = data->getMaxHeight();
return heights;
}
}();
mNavigator.addHeightfield(cellPosition, worldsize, shape, navigatorUpdateGuard);
}
}
ESM::visit(ESM::VisitOverload{
[&](const ESM::Cell& cell) {
if (const auto pathgrid = mWorld.getStore().get<ESM::Pathgrid>().search(cell))
mNavigator.addPathgrid(cell, *pathgrid);
},
[&](const ESM4::Cell& cell) {},
},
*cell.getCell());
// register local scripts
// do this before insertCell, to make sure we don't add scripts from levelled creature spawning twice
mWorld.getLocalScripts().addCell(&cell);
if (respawn)
cell.respawn();
insertCell(cell, loadingListener, navigatorUpdateGuard);
mRendering.addCell(&cell);
MWBase::Environment::get().getWindowManager()->addCell(&cell);
bool waterEnabled = cellVariant.hasWater() || cell.isExterior();
float waterLevel = cell.getWaterLevel();
mRendering.setWaterEnabled(waterEnabled);
if (waterEnabled)
{
mPhysics->enableWater(waterLevel);
mRendering.setWaterHeight(waterLevel);
if (cellVariant.isExterior())
{
if (const auto heightField = mPhysics->getHeightField(cellX, cellY))
mNavigator.addWater(
osg::Vec2i(cellX, cellY), ESM::Land::REAL_SIZE, waterLevel, navigatorUpdateGuard);
}
else
{
mNavigator.addWater(
osg::Vec2i(cellX, cellY), std::numeric_limits<int>::max(), waterLevel, navigatorUpdateGuard);
}
}
else
mPhysics->disableWater();
if (!cell.isExterior() && !cellVariant.isQuasiExterior())
mRendering.configureAmbient(cellVariant);
mPreloader->notifyLoaded(&cell);
}
void Scene::clear()
{
auto navigatorUpdateGuard = mNavigator.makeUpdateGuard();
for (auto iter = mActiveCells.begin(); iter != mActiveCells.end();)
{
auto* cell = *iter++;
unloadCell(cell, navigatorUpdateGuard.get());
}
navigatorUpdateGuard.reset();
assert(mActiveCells.empty());
mCurrentCell = nullptr;
mLowestPoint = std::numeric_limits<float>::max();
mPreloader->clear();
}
osg::Vec4i Scene::gridCenterToBounds(const osg::Vec2i& centerCell) const
{
return osg::Vec4i(centerCell.x() - mHalfGridSize, centerCell.y() - mHalfGridSize,
centerCell.x() + mHalfGridSize + 1, centerCell.y() + mHalfGridSize + 1);
}
osg::Vec2i Scene::getNewGridCenter(const osg::Vec3f& pos, const osg::Vec2i* currentGridCenter) const
{
ESM::RefId worldspace
= mCurrentCell ? mCurrentCell->getCell()->getWorldSpace() : ESM::Cell::sDefaultWorldspaceId;
if (currentGridCenter)
{
const osg::Vec2f center = ESM::indexToPosition(
ESM::ExteriorCellLocation(currentGridCenter->x(), currentGridCenter->y(), worldspace), true);
float distance = std::max(std::abs(center.x() - pos.x()), std::abs(center.y() - pos.y()));
float cellSize = ESM::getCellSize(worldspace);
const float maxDistance = cellSize / 2 + mCellLoadingThreshold; // 1/2 cell size + threshold
if (distance <= maxDistance)
return *currentGridCenter;
}
ESM::ExteriorCellLocation cellPos = ESM::positionToExteriorCellLocation(pos.x(), pos.y(), worldspace);
return { cellPos.mX, cellPos.mY };
}
void Scene::playerMoved(const osg::Vec3f& pos)
{
if (!mCurrentCell)
return;
// The player is reset when z is 90 units below the lowest reference bound z.
constexpr float lowestPointAdjustment = -90.0f;
if (mCurrentCell->isExterior())
{
osg::Vec2i newCell = getNewGridCenter(pos, &mCurrentGridCenter);
if (newCell != mCurrentGridCenter)
requestChangeCellGrid(pos, newCell);
}
else if (pos.z() < mLowestPoint + lowestPointAdjustment)
{
// Player has fallen into the void, reset to interior marker/coc (#1415)
const std::string_view cellNameId = mCurrentCell->getCell()->getNameId();
MWBase::World* world = MWBase::Environment::get().getWorld();
MWWorld::Ptr playerPtr = world->getPlayerPtr();
// Check that collision is enabled, which is opposite to Vanilla
// this change was decided in MR #4100 as the behaviour is preferable
if (world->isActorCollisionEnabled(playerPtr))
{
ESM::Position newPos;
const ESM::RefId refId = world->findInteriorPosition(cellNameId, newPos);
// Only teleport if that teleport point is > the lowest point, rare edge case
if (!refId.empty() && newPos.pos[2] >= mLowestPoint - lowestPointAdjustment)
{
MWWorld::ActionTeleport(refId, newPos, false).execute(playerPtr);
Log(Debug::Warning) << "Player position has been reset due to falling into the void";
}
}
}
}
void Scene::requestChangeCellGrid(const osg::Vec3f& position, const osg::Vec2i& cell, bool changeEvent)
{
mChangeCellGridRequest = ChangeCellGridRequest{ position,
ESM::ExteriorCellLocation(cell.x(), cell.y(), mCurrentCell->getCell()->getWorldSpace()), changeEvent };
}
void Scene::changeCellGrid(const osg::Vec3f& pos, ESM::ExteriorCellLocation playerCellIndex, bool changeEvent)
{
const int halfGridSize
= isEsm4Ext(playerCellIndex.mWorldspace) ? Constants::ESM4CellGridRadius : Constants::CellGridRadius;
auto navigatorUpdateGuard = mNavigator.makeUpdateGuard();
const int playerCellX = playerCellIndex.mX;
const int playerCellY = playerCellIndex.mY;
for (auto iter = mActiveCells.begin(); iter != mActiveCells.end();)
{
auto* cell = *iter++;
if (cell->getCell()->isExterior() && cell->getCell()->getWorldSpace() == playerCellIndex.mWorldspace)
{
const auto dx = std::abs(playerCellX - cell->getCell()->getGridX());
const auto dy = std::abs(playerCellY - cell->getCell()->getGridY());
if (dx > halfGridSize || dy > halfGridSize)
unloadCell(cell, navigatorUpdateGuard.get());
}
else
unloadCell(cell, navigatorUpdateGuard.get());
}
const DetourNavigator::CellGridBounds cellGridBounds{
.mCenter = osg::Vec2i(playerCellX, playerCellY),
.mHalfSize = halfGridSize,
};
mNavigator.updateBounds(playerCellIndex.mWorldspace, cellGridBounds, pos, navigatorUpdateGuard.get());
mHalfGridSize = halfGridSize;
mCurrentGridCenter = osg::Vec2i(playerCellX, playerCellY);
osg::Vec4i newGrid = gridCenterToBounds(mCurrentGridCenter);
mRendering.setActiveGrid(newGrid);
mRendering.enableTerrain(true, playerCellIndex.mWorldspace);
mPreloader->setTerrain(mRendering.getTerrain());
if (mRendering.pagingUnlockCache())
mPreloader->abortTerrainPreloadExcept(nullptr);
if (!mPreloader->isTerrainLoaded(PositionCellGrid{ pos, newGrid }, mRendering.getReferenceTime()))
preloadTerrain(pos, playerCellIndex.mWorldspace, true);
mPagedRefs.clear();
mRendering.getPagedRefnums(newGrid, mPagedRefs);
addPostponedPhysicsObjects();
std::size_t refsToLoad = 0;
std::vector<std::pair<int, int>> cellsPositionsToLoad;
iterateOverCellsAround(playerCellX, playerCellY, mHalfGridSize, [&](int x, int y) {
const ESM::ExteriorCellLocation location(x, y, playerCellIndex.mWorldspace);
if (isCellInCollection(location, mActiveCells))
return;
refsToLoad += mWorld.getWorldModel().getExterior(location).count();
cellsPositionsToLoad.emplace_back(x, y);
});
Loading::Listener* loadingListener = MWBase::Environment::get().getWindowManager()->getLoadingScreen();
Loading::ScopedLoad load(loadingListener);
loadingListener->setLabel("#{OMWEngine:LoadingExterior}");
loadingListener->setProgressRange(refsToLoad);
sortCellsToLoad(playerCellX, playerCellY, cellsPositionsToLoad);
for (const auto& [x, y] : cellsPositionsToLoad)
{
ESM::ExteriorCellLocation indexToLoad = { x, y, playerCellIndex.mWorldspace };
if (!isCellInCollection(indexToLoad, mActiveCells))
{
CellStore& cell = mWorld.getWorldModel().getExterior(indexToLoad);
loadCell(cell, loadingListener, changeEvent, pos, navigatorUpdateGuard.get());
}
}
mNavigator.update(pos, navigatorUpdateGuard.get());
navigatorUpdateGuard.reset();
CellStore& current = mWorld.getWorldModel().getExterior(playerCellIndex);
MWBase::Environment::get().getWindowManager()->changeCell(¤t);
if (changeEvent)
mCellChanged = true;
mCellLoaded = true;
}
void Scene::addPostponedPhysicsObjects()
{
for (const auto& cell : mActiveCells)
{
cell->forEach([&](const MWWorld::Ptr& ptr) {
if (ptr.mRef->mData.mPhysicsPostponed)
{
ptr.mRef->mData.mPhysicsPostponed = false;
if (ptr.mRef->mData.isEnabled() && ptr.mRef->mRef.getCount() > 0)
{
std::string model = getModel(ptr);
if (!model.empty())
{
const auto rotation = makeNodeRotation(ptr, RotationOrder::direct);
ptr.getClass().insertObjectPhysics(ptr, model, rotation, *mPhysics);
}
}
}
return true;
});
}
}
void Scene::testExteriorCells()
{
// Note: temporary disable ICO to decrease memory usage
mRendering.getResourceSystem()->getSceneManager()->setIncrementalCompileOperation(nullptr);
mRendering.getResourceSystem()->setExpiryDelay(1.f);
const MWWorld::Store<ESM::Cell>& cells = mWorld.getStore().get<ESM::Cell>();
Loading::Listener* loadingListener = MWBase::Environment::get().getWindowManager()->getLoadingScreen();
Loading::ScopedLoad load(loadingListener);
loadingListener->setProgressRange(cells.getExtSize());
MWWorld::Store<ESM::Cell>::iterator it = cells.extBegin();
int i = 1;
auto navigatorUpdateGuard = mNavigator.makeUpdateGuard();
for (; it != cells.extEnd(); ++it)
{
loadingListener->setLabel("#{OMWEngine:TestingExteriorCells} (" + std::to_string(i) + "/"
+ std::to_string(cells.getExtSize()) + ")...");
CellStore& cell = mWorld.getWorldModel().getExterior(
ESM::ExteriorCellLocation(it->mData.mX, it->mData.mY, ESM::Cell::sDefaultWorldspaceId));
const osg::Vec3f position
= osg::Vec3f(it->mData.mX + 0.5f, it->mData.mY + 0.5f, 0) * Constants::CellSizeInUnits;
const osg::Vec2i cellPosition(it->mData.mX, it->mData.mY);
const DetourNavigator::CellGridBounds cellGridBounds{
.mCenter = osg::Vec2i(it->mData.mX, it->mData.mY),
.mHalfSize = Constants::CellGridRadius,
};
mNavigator.updateBounds(
ESM::Cell::sDefaultWorldspaceId, cellGridBounds, position, navigatorUpdateGuard.get());
loadCell(cell, nullptr, false, position, navigatorUpdateGuard.get());
mNavigator.update(position, navigatorUpdateGuard.get());
navigatorUpdateGuard.reset();
mNavigator.wait(DetourNavigator::WaitConditionType::requiredTilesPresent, nullptr);
navigatorUpdateGuard = mNavigator.makeUpdateGuard();
auto iter = mActiveCells.begin();
while (iter != mActiveCells.end())
{
if (it->isExterior() && it->mData.mX == (*iter)->getCell()->getGridX()
&& it->mData.mY == (*iter)->getCell()->getGridY())
{
unloadCell(*iter, navigatorUpdateGuard.get());
break;
}
++iter;
}
mRendering.getResourceSystem()->updateCache(mRendering.getReferenceTime());
loadingListener->increaseProgress(1);
i++;
}
mRendering.getResourceSystem()->getSceneManager()->setIncrementalCompileOperation(
mRendering.getIncrementalCompileOperation());
mRendering.getResourceSystem()->setExpiryDelay(Settings::cells().mCacheExpiryDelay);
}
void Scene::testInteriorCells()
{
// Note: temporary disable ICO to decrease memory usage
mRendering.getResourceSystem()->getSceneManager()->setIncrementalCompileOperation(nullptr);
mRendering.getResourceSystem()->setExpiryDelay(1.f);
const MWWorld::Store<ESM::Cell>& cells = mWorld.getStore().get<ESM::Cell>();
Loading::Listener* loadingListener = MWBase::Environment::get().getWindowManager()->getLoadingScreen();
Loading::ScopedLoad load(loadingListener);
loadingListener->setProgressRange(cells.getIntSize());
int i = 1;
MWWorld::Store<ESM::Cell>::iterator it = cells.intBegin();
auto navigatorUpdateGuard = mNavigator.makeUpdateGuard();
for (; it != cells.intEnd(); ++it)
{
loadingListener->setLabel("#{OMWEngine:TestingInteriorCells} (" + std::to_string(i) + "/"
+ std::to_string(cells.getIntSize()) + ")...");
CellStore& cell = mWorld.getWorldModel().getInterior(it->mName);
ESM::Position position;
mWorld.findInteriorPosition(it->mName, position);
mNavigator.updateBounds(
cell.getCell()->getWorldSpace(), std::nullopt, position.asVec3(), navigatorUpdateGuard.get());
loadCell(cell, nullptr, false, position.asVec3(), navigatorUpdateGuard.get());
mNavigator.update(position.asVec3(), navigatorUpdateGuard.get());
navigatorUpdateGuard.reset();
mNavigator.wait(DetourNavigator::WaitConditionType::requiredTilesPresent, nullptr);
navigatorUpdateGuard = mNavigator.makeUpdateGuard();
auto iter = mActiveCells.begin();
while (iter != mActiveCells.end())
{
assert(!(*iter)->getCell()->isExterior());
if (it->mName == (*iter)->getCell()->getNameId())
{
unloadCell(*iter, navigatorUpdateGuard.get());
break;
}
++iter;
}
mRendering.getResourceSystem()->updateCache(mRendering.getReferenceTime());
loadingListener->increaseProgress(1);
i++;
}
mRendering.getResourceSystem()->getSceneManager()->setIncrementalCompileOperation(
mRendering.getIncrementalCompileOperation());
mRendering.getResourceSystem()->setExpiryDelay(Settings::cells().mCacheExpiryDelay);
}
void Scene::changePlayerCell(CellStore& cell, const ESM::Position& pos, bool adjustPlayerPos)
{
mHalfGridSize = cell.getCell()->isEsm4() ? Constants::ESM4CellGridRadius : Constants::CellGridRadius;
mCurrentCell = &cell;
mRendering.enableTerrain(cell.isExterior(), cell.getCell()->getWorldSpace());
MWWorld::Ptr old = mWorld.getPlayerPtr();
mWorld.getPlayer().setCell(&cell);
MWWorld::Ptr player = mWorld.getPlayerPtr();
mRendering.updatePlayerPtr(player);
// The player is loaded before the scene and by default it is grounded, with the scene fully loaded,
// we validate and correct this. Only run once, during initial cell load.
if (old.mCell == &cell)
mPhysics->traceDown(player, player.getRefData().getPosition().asVec3(), 10.f);
if (adjustPlayerPos)
{
mWorld.moveObject(player, pos.asVec3());
mWorld.rotateObject(player, pos.asRotationVec3());
player.getClass().adjustPosition(player, true);
}
MWBase::Environment::get().getMechanicsManager()->updateCell(old, player);
MWBase::Environment::get().getWindowManager()->watchActor(player);
mPhysics->updatePtr(old, player);
mWorld.adjustSky();
mLastPlayerPos = player.getRefData().getPosition().asVec3();
}
Scene::Scene(MWWorld::World& world, MWRender::RenderingManager& rendering, MWPhysics::PhysicsSystem* physics,
DetourNavigator::Navigator& navigator)
: mCurrentCell(nullptr)
, mCellChanged(false)
, mWorld(world)
, mPhysics(physics)
, mRendering(rendering)
, mNavigator(navigator)
, mCellLoadingThreshold(1024.f)
, mPreloadDistance(Settings::cells().mPreloadDistance)
, mPreloadEnabled(Settings::cells().mPreloadEnabled)
, mPreloadExteriorGrid(Settings::cells().mPreloadExteriorGrid)
, mPreloadDoors(Settings::cells().mPreloadDoors)
, mPreloadFastTravel(Settings::cells().mPreloadFastTravel)
, mPredictionTime(Settings::cells().mPredictionTime)
, mLowestPoint(std::numeric_limits<float>::max())
{
mPreloader = std::make_unique<CellPreloader>(rendering.getResourceSystem(), physics->getShapeManager(),
rendering.getTerrain(), rendering.getLandManager());
mPreloader->setWorkQueue(mRendering.getWorkQueue());
mPreloader->setExpiryDelay(Settings::cells().mPreloadCellExpiryDelay);
mPreloader->setMinCacheSize(Settings::cells().mPreloadCellCacheMin);
mPreloader->setMaxCacheSize(Settings::cells().mPreloadCellCacheMax);
mPreloader->setPreloadInstances(Settings::cells().mPreloadInstances);
}
Scene::~Scene()
{
for (const osg::ref_ptr<SceneUtil::WorkItem>& v : mWorkItems)
v->abort();
for (const osg::ref_ptr<SceneUtil::WorkItem>& v : mWorkItems)
v->waitTillDone();
}
bool Scene::hasCellChanged() const
{
return mCellChanged;
}
const Scene::CellStoreCollection& Scene::getActiveCells() const
{
return mActiveCells;
}
void Scene::changeToInteriorCell(
std::string_view cellName, const ESM::Position& position, bool adjustPlayerPos, bool changeEvent)
{
CellStore& cell = mWorld.getWorldModel().getInterior(cellName);
bool useFading = (mCurrentCell != nullptr);
if (useFading)
MWBase::Environment::get().getWindowManager()->fadeScreenOut(0.5);
Loading::Listener* loadingListener = MWBase::Environment::get().getWindowManager()->getLoadingScreen();
loadingListener->setLabel("#{OMWEngine:LoadingInterior}");
Loading::ScopedLoad load(loadingListener);
if (mCurrentCell == &cell)
{
mWorld.moveObject(mWorld.getPlayerPtr(), position.asVec3());
mWorld.rotateObject(mWorld.getPlayerPtr(), position.asRotationVec3());
if (adjustPlayerPos)
mWorld.getPlayerPtr().getClass().adjustPosition(mWorld.getPlayerPtr(), true);
MWBase::Environment::get().getWindowManager()->fadeScreenIn(0.5);
return;
}
Log(Debug::Info) << "Changing to interior";
auto navigatorUpdateGuard = mNavigator.makeUpdateGuard();
// unload
for (auto iter = mActiveCells.begin(); iter != mActiveCells.end();)
{
auto* cellToUnload = *iter++;
unloadCell(cellToUnload, navigatorUpdateGuard.get());
}
assert(mActiveCells.empty());
loadingListener->setProgressRange(cell.count());
mNavigator.updateBounds(
cell.getCell()->getWorldSpace(), std::nullopt, position.asVec3(), navigatorUpdateGuard.get());
// Load cell.
mPagedRefs.clear();
loadCell(cell, loadingListener, changeEvent, position.asVec3(), navigatorUpdateGuard.get());
navigatorUpdateGuard.reset();
changePlayerCell(cell, position, adjustPlayerPos);
// adjust fog
mRendering.configureFog(*mCurrentCell->getCell());
// Sky system
mWorld.adjustSky();
if (changeEvent)
mCellChanged = true;
mCellLoaded = true;
if (useFading)
MWBase::Environment::get().getWindowManager()->fadeScreenIn(0.5);
MWBase::Environment::get().getWindowManager()->changeCell(mCurrentCell);
MWBase::Environment::get().getWorld()->getPostProcessor()->setExteriorFlag(cell.getCell()->isQuasiExterior());
}
void Scene::changeToExteriorCell(
const ESM::RefId& extCellId, const ESM::Position& position, bool adjustPlayerPos, bool changeEvent)
{
if (changeEvent)
MWBase::Environment::get().getWindowManager()->fadeScreenOut(0.5);
CellStore& current = mWorld.getWorldModel().getCell(extCellId);