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/**
* @file llpathfindingnavmeshzone.cpp
* @author William Todd Stinson
* @brief A class for representing the zone of navmeshes containing and possible surrounding the current region.
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llsd.h"
#include "lluuid.h"
#include "llagent.h"
#include "llviewerregion.h"
#include "llpathfindingnavmesh.h"
#include "llpathfindingnavmeshzone.h"
#include "llpathfindingmanager.h"
#include "llviewercontrol.h"
#include "LLPathingLib.h"
#include <string>
#include <map>
#define CENTER_REGION 99
//---------------------------------------------------------------------------
// LLPathfindingNavMeshZone
//---------------------------------------------------------------------------
LLPathfindingNavMeshZone::LLPathfindingNavMeshZone()
: mNavMeshLocations(),
mNavMeshZoneSignal(),
mNavMeshSlot()
{
}
LLPathfindingNavMeshZone::~LLPathfindingNavMeshZone()
{
}
LLPathfindingNavMeshZone::navmesh_zone_slot_t LLPathfindingNavMeshZone::registerNavMeshZoneListener(navmesh_zone_callback_t pNavMeshZoneCallback)
{
return mNavMeshZoneSignal.connect(pNavMeshZoneCallback);
}
void LLPathfindingNavMeshZone::setCurrentRegionAsCenter()
{
llassert(LLPathingLib::getInstance() != NULL);
if (LLPathingLib::getInstance() != NULL)
{
LLPathingLib::getInstance()->cleanupResidual();
}
mNavMeshLocations.clear();
LLViewerRegion *currentRegion = gAgent.getRegion();
const LLUUID ¤tRegionUUID = currentRegion->getRegionID();
NavMeshLocation centerNavMesh(currentRegionUUID, CENTER_REGION);
mNavMeshLocations.insert(std::pair<LLUUID, NavMeshLocation>(currentRegionUUID, centerNavMesh));
}
void LLPathfindingNavMeshZone::refresh()
{
LLPathfindingManager *pathfindingManagerInstance = LLPathfindingManager::getInstance();
if (!mNavMeshSlot.connected())
{
mNavMeshSlot = pathfindingManagerInstance->registerNavMeshListenerForCurrentRegion(boost::bind(&LLPathfindingNavMeshZone::handleNavMesh, this, _1, _2, _3, _4));
}
pathfindingManagerInstance->requestGetNavMeshForCurrentRegion();
}
void LLPathfindingNavMeshZone::disable()
{
if (mNavMeshSlot.connected())
{
mNavMeshSlot.disconnect();
}
if (LLPathingLib::getInstance() != NULL)
{
LLPathingLib::getInstance()->cleanupResidual();
}
mNavMeshLocations.clear();
}
void LLPathfindingNavMeshZone::handleNavMesh(LLPathfindingNavMesh::ENavMeshRequestStatus pNavMeshRequestStatus, const LLUUID &pRegionUUID, U32 pNavMeshVersion, const LLSD::Binary &pNavMeshData)
{
NavMeshLocations::iterator navMeshIter = mNavMeshLocations.find(pRegionUUID);
if (navMeshIter != mNavMeshLocations.end())
{
navMeshIter->second.handleNavMesh(pNavMeshRequestStatus, pRegionUUID, pNavMeshVersion, pNavMeshData);
updateStatus();
}
}
void LLPathfindingNavMeshZone::updateStatus()
{
bool hasRequestUnknown = false;
bool hasRequestStarted = false;
bool hasRequestCompleted = false;
bool hasRequestNotEnabled = false;
bool hasRequestError = false;
for (NavMeshLocations::iterator navMeshIter = mNavMeshLocations.begin();
navMeshIter != mNavMeshLocations.end(); ++navMeshIter)
{
switch (navMeshIter->second.getRequestStatus())
{
case LLPathfindingNavMesh::kNavMeshRequestUnknown :
hasRequestUnknown = true;
break;
case LLPathfindingNavMesh::kNavMeshRequestStarted :
hasRequestStarted = true;
break;
case LLPathfindingNavMesh::kNavMeshRequestCompleted :
hasRequestCompleted = true;
break;
case LLPathfindingNavMesh::kNavMeshRequestNotEnabled :
hasRequestNotEnabled = true;
break;
case LLPathfindingNavMesh::kNavMeshRequestError :
hasRequestError = true;
break;
default :
hasRequestError = true;
llassert(0);
break;
}
}
ENavMeshZoneRequestStatus zoneRequestStatus = kNavMeshZoneRequestUnknown;
if (hasRequestNotEnabled)
{
zoneRequestStatus = kNavMeshZoneRequestNotEnabled;
}
else if (hasRequestError)
{
zoneRequestStatus = kNavMeshZoneRequestError;
}
else if (hasRequestStarted)
{
zoneRequestStatus = kNavMeshZoneRequestStarted;
}
else if (hasRequestUnknown)
{
zoneRequestStatus = kNavMeshZoneRequestUnknown;
llassert(0);
}
else if (hasRequestCompleted)
{
zoneRequestStatus = kNavMeshZoneRequestCompleted;
llassert(LLPathingLib::getInstance() != NULL);
if (LLPathingLib::getInstance() != NULL)
{
LLPathingLib::getInstance()->stitchNavMeshes( gSavedSettings.getBOOL("EnableVBOForNavMeshVisualization") );
}
}
else
{
zoneRequestStatus = kNavMeshZoneRequestError;
llassert(0);
}
mNavMeshZoneSignal(zoneRequestStatus);
}
//---------------------------------------------------------------------------
// LLPathfindingNavMeshZone::NavMeshLocation
//---------------------------------------------------------------------------
LLPathfindingNavMeshZone::NavMeshLocation::NavMeshLocation(const LLUUID &pRegionUUID, S32 pDirection)
: mRegionUUID(pRegionUUID),
mDirection(pDirection),
mHasNavMesh(false),
mNavMeshVersion(0U),
mRequestStatus(LLPathfindingNavMesh::kNavMeshRequestUnknown)
{
}
LLPathfindingNavMeshZone::NavMeshLocation::NavMeshLocation(const NavMeshLocation &other)
: mRegionUUID(other.mRegionUUID),
mDirection(other.mDirection),
mHasNavMesh(other.mHasNavMesh),
mNavMeshVersion(other.mNavMeshVersion),
mRequestStatus(other.mRequestStatus)
{
}
LLPathfindingNavMeshZone::NavMeshLocation::~NavMeshLocation()
{
}
void LLPathfindingNavMeshZone::NavMeshLocation::handleNavMesh(LLPathfindingNavMesh::ENavMeshRequestStatus pNavMeshRequestStatus, const LLUUID &pRegionUUID, U32 pNavMeshVersion, const LLSD::Binary &pNavMeshData)
{
llassert(mRegionUUID == pRegionUUID);
mRequestStatus = pNavMeshRequestStatus;
if ((pNavMeshRequestStatus == LLPathfindingNavMesh::kNavMeshRequestCompleted) && (!mHasNavMesh || (mNavMeshVersion != pNavMeshVersion)))
{
llassert(!pNavMeshData.empty());
mHasNavMesh = true;
mNavMeshVersion = pNavMeshVersion;
llassert(LLPathingLib::getInstance() != NULL);
if (LLPathingLib::getInstance() != NULL)
{
LLPathingLib::getInstance()->extractNavMeshSrcFromLLSD(pNavMeshData, mDirection);
}
}
}
LLPathfindingNavMesh::ENavMeshRequestStatus LLPathfindingNavMeshZone::NavMeshLocation::getRequestStatus() const
{
return mRequestStatus;
}
LLPathfindingNavMeshZone::NavMeshLocation &LLPathfindingNavMeshZone::NavMeshLocation::operator =(const NavMeshLocation &other)
{
mRegionUUID = other.mRegionUUID;
mDirection = other.mDirection;
mHasNavMesh = other.mHasNavMesh;
mNavMeshVersion = other.mNavMeshVersion;
mRequestStatus = other.mRequestStatus;
return (*this);
}
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