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597 lines
16 KiB
C++
597 lines
16 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "std3d.h"
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#include "nel/3d/cluster.h"
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#include "nel/3d/portal.h"
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#include "nel/misc/stream.h"
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#include "nel/misc/string_mapper.h"
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#include "nel/3d/scene.h"
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#include "nel/3d/transform_shape.h"
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//#include "mesh_instance.h"
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#include "nel/3d/scene_group.h"
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using namespace NLMISC;
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using namespace std;
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namespace NL3D
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{
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// 0.5 cm of precision
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#define CLUSTERPRECISION 0.005
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// ***************************************************************************
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CCluster::CCluster ()
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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FatherVisible = VisibleFromFather = false;
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FatherAudible = AudibleFromFather = false;
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Father = NULL;
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Group = NULL;
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// map a no fx string
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_EnvironmentFxId = CStringMapper::map("no fx");
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// map a no soundgroup string
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_SoundGroupId = CStringMapper::map("");
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// I am a transform cluster
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CTransform::setIsCluster(true);
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// Default: not traversed
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_Visited= false;
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_CameraIn= false;
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}
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// ***************************************************************************
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CCluster::~CCluster()
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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unlinkFromClusterTree();
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}
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void CCluster::setSoundGroup(const std::string &soundGroup)
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{
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_SoundGroupId = CStringMapper::map(soundGroup);
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}
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void CCluster::setSoundGroup(const NLMISC::TStringId &soundGroupId)
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{
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_SoundGroupId = soundGroupId;
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}
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const std::string &CCluster::getSoundGroup()
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{
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return CStringMapper::unmap(_SoundGroupId);
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}
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NLMISC::TStringId CCluster::getSoundGroupId()
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{
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return _SoundGroupId;
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}
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void CCluster::setEnvironmentFx(const std::string &environmentFx)
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{
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_EnvironmentFxId = CStringMapper::map(environmentFx);
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}
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void CCluster::setEnvironmentFx(const NLMISC::TStringId &environmentFxId)
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{
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_EnvironmentFxId = environmentFxId;
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}
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const std::string &CCluster::getEnvironmentFx()
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{
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return CStringMapper::unmap(_EnvironmentFxId);
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}
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NLMISC::TStringId CCluster::getEnvironmentFxId()
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{
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return _EnvironmentFxId;
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}
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// ***************************************************************************
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void CCluster::unlinkFromParent()
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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// unlink from father sons list
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if (Father)
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{
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Father->Children.erase(remove(Father->Children.begin(), Father->Children.end(), this), Father->Children.end());
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Father = NULL;
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}
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}
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// ***************************************************************************
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void CCluster::unlinkSons()
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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// tells all sons that they have no more father
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for(uint k = 0; k < Children.size(); ++k)
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{
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if (Children[k]->Father == this)
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{
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Children[k]->Father = NULL;
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}
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}
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NLMISC::contReset(Children);
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}
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// ***************************************************************************
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void CCluster::unlinkFromClusterTree()
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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unlinkFromParent();
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unlinkSons();
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}
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// ***************************************************************************
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void CCluster::registerBasic ()
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{
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CScene::registerModel (ClusterId, 0, CCluster::creator);
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}
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// ***************************************************************************
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bool CCluster::makeVolume (const CVector& p1, const CVector& p2, const CVector& p3)
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{
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uint i;
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// Check if the plane is not close to a plane that already define the cluster
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for (i = 0; i < _LocalVolume.size(); ++i)
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{
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float f1 = fabsf (_LocalVolume[i]*p1);
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float f2 = fabsf (_LocalVolume[i]*p2);
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float f3 = fabsf (_LocalVolume[i]*p3);
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if ((f1 < CLUSTERPRECISION) && (f2 < CLUSTERPRECISION) && (f3 < CLUSTERPRECISION))
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return true;
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}
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// Check if we want to add a triangle not completely in the predefined volume
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for (i = 0; i < _LocalVolume.size(); ++i)
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{
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float f1 = _LocalVolume[i]*p1;
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float f2 = _LocalVolume[i]*p2;
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float f3 = _LocalVolume[i]*p3;
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if ((f1 > CLUSTERPRECISION) && (f2 > CLUSTERPRECISION) && (f3 > CLUSTERPRECISION))
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return false;
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}
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// Build volume
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CPlane p;
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p.make (p1, p2, p3);
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p.normalize();
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_LocalVolume.push_back (p);
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// Build BBox
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if (_LocalVolume.size() == 1)
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_LocalBBox.setCenter(p1);
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else
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_LocalBBox.extend(p1);
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_LocalBBox.extend(p2);
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_LocalBBox.extend(p3);
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_Volume = _LocalVolume;
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_BBox = _LocalBBox;
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return true;
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}
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// ***************************************************************************
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bool CCluster::isIn (const CVector& p)
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{
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for (uint i = 0; i < _Volume.size(); ++i)
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if (_Volume[i]*p > CLUSTERPRECISION)
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return false;
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return true;
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}
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// ***************************************************************************
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bool CCluster::isIn (const CAABBox& b)
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{
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for (uint i = 0; i < _Volume.size(); ++i)
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{
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if (!b.clipBack (_Volume[i]))
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return false;
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}
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return true;
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}
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// ***************************************************************************
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bool CCluster::isIn (const NLMISC::CVector& center, float size)
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{
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for (uint i = 0; i < _Volume.size(); ++i)
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if (_Volume[i]*center > size)
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return false;
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return true;
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}
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// ***************************************************************************
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bool CCluster::clipSegment (NLMISC::CVector &p0, NLMISC::CVector &p1)
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{
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for (uint i = 0; i < _Volume.size(); ++i)
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{
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if (!_Volume[i].clipSegmentBack(p0, p1))
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return false;
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}
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return true;
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}
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// ***************************************************************************
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void CCluster::resetPortalLinks ()
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{
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_Portals.clear();
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}
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// ***************************************************************************
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void CCluster::link (CPortal* portal)
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{
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_Portals.push_back (portal);
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}
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// ***************************************************************************
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void CCluster::unlink (CPortal* portal)
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{
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uint32 pos;
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for (pos = 0; pos < _Portals.size(); ++pos)
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{
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if (_Portals[pos] == portal)
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break;
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}
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if (pos < _Portals.size())
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_Portals.erase (_Portals.begin()+pos);
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}
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// ***************************************************************************
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void CCluster::serial (NLMISC::IStream&f)
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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sint version = f.serialVersion (3);
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if (version >= 1)
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f.serial (Name);
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f.serialCont (_LocalVolume);
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f.serial (_LocalBBox);
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f.serial (FatherVisible);
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f.serial (VisibleFromFather);
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if (f.isReading())
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{
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_Volume = _LocalVolume;
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_BBox = _LocalBBox;
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}
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if (version >= 2)
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{
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if (f.isReading())
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{
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std::string soundGroup;
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std::string envFxName;
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f.serial(soundGroup);
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_SoundGroupId = CStringMapper::map(soundGroup);
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f.serial(envFxName);
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if (envFxName == "")
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envFxName = "no fx";
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_EnvironmentFxId = CStringMapper::map(envFxName);
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}
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else
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{
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// write the sound group
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std::string soundGroup = CStringMapper::unmap(_SoundGroupId);
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f.serial(soundGroup);
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// write the env fx name
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std::string envFxName = CStringMapper::unmap(_EnvironmentFxId);
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if (envFxName == "no fx")
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envFxName = "";
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f.serial(envFxName);
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}
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// nldebug("Cluster %s, sound group [%s]", Name.c_str(), CStringMapper::unmap(_SoundGroupId).c_str());
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}
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if (version >= 3)
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{
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f.serial(AudibleFromFather);
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f.serial(FatherAudible);
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}
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else
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{
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// copy the visual property
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AudibleFromFather = VisibleFromFather;
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FatherAudible = FatherVisible;
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}
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}
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// ***************************************************************************
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void CCluster::setWorldMatrix (const CMatrix &WM)
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{
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uint32 i;
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CMatrix invWM = WM;
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invWM.invert();
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// Transform the volume
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for (i = 0; i < _LocalVolume.size(); ++i)
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_Volume[i] = _LocalVolume[i] * invWM;
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_BBox = NLMISC::CAABBox::transformAABBox(WM, _LocalBBox);
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// Transform the bounding box
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/*CVector p[8];
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p[0].x = _LocalBBox.getMin().x;
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p[0].y = _LocalBBox.getMin().y;
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p[0].z = _LocalBBox.getMin().z;
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p[1].x = _LocalBBox.getMax().x;
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p[1].y = _LocalBBox.getMin().y;
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p[1].z = _LocalBBox.getMin().z;
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p[2].x = _LocalBBox.getMin().x;
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p[2].y = _LocalBBox.getMax().y;
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p[2].z = _LocalBBox.getMin().z;
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p[3].x = _LocalBBox.getMax().x;
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p[3].y = _LocalBBox.getMax().y;
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p[3].z = _LocalBBox.getMin().z;
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p[4].x = _LocalBBox.getMin().x;
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p[4].y = _LocalBBox.getMin().y;
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p[4].z = _LocalBBox.getMax().z;
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p[5].x = _LocalBBox.getMax().x;
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p[5].y = _LocalBBox.getMin().y;
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p[5].z = _LocalBBox.getMax().z;
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p[6].x = _LocalBBox.getMin().x;
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p[6].y = _LocalBBox.getMax().y;
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p[6].z = _LocalBBox.getMax().z;
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p[7].x = _LocalBBox.getMax().x;
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p[7].y = _LocalBBox.getMax().y;
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p[7].z = _LocalBBox.getMax().z;
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for (i = 0; i < 8; ++i)
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p[i] = WM.mulPoint(p[i]);
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CAABBox boxTemp;
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boxTemp.setCenter(p[0]);
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for (i = 1; i < 8; ++i)
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boxTemp.extend(p[i]);
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_BBox = boxTemp;*/
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}
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// ***************************************************************************
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void CCluster::traverseHrc ()
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{
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CTransform::traverseHrc ();
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setWorldMatrix (_WorldMatrix);
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for (uint32 i = 0; i < getNbPortals(); ++i)
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{
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CPortal *pPortal = getPortal(i);
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pPortal->setWorldMatrix (_WorldMatrix);
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}
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// Re affect the cluster to the accelerator if not the root
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if (!isRoot())
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{
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Group->_ClipTrav->unregisterCluster(this);
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Group->_ClipTrav->registerCluster (this);
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}
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}
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// ***************************************************************************
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bool CCluster::clip ()
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{
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return true;
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}
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// ***************************************************************************
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void CCluster::traverseClip ()
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{
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// This is the root call called by the SceneRoot
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recursTraverseClip(NULL);
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}
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// ***************************************************************************
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void CCluster::recursTraverseClip(CTransform *caller)
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{
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if (_Visited)
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return;
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_Visited = true;
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// The cluster is visible because we are in it
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// So clip the models attached (with MOT links) to the cluster
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uint num= clipGetNumChildren();
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uint32 i;
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for(i=0;i<num;i++)
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clipGetChild(i)->traverseClip();
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// Debug visible clusters
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CClipTrav &clipTrav = getOwnerScene()->getClipTrav();
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if (clipTrav.getClusterVisibilityTracking())
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{
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clipTrav.addVisibleCluster(this);
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}
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// And look through portals
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for (i = 0; i < getNbPortals(); ++i)
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{
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CPortal*pPortal = getPortal (i);
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vector<CPlane> WorldPyrTemp = clipTrav.WorldPyramid;
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bool backfaceclipped = false;
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CCluster *pOtherSideCluster;
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if (pPortal->getCluster(0) == this)
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pOtherSideCluster = pPortal->getCluster (1);
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else
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pOtherSideCluster = pPortal->getCluster (0);
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if (Father != NULL)
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if (caller == Father) // If the caller is the father
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if (VisibleFromFather)
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// Backface clipping
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if( !pPortal->isInFront( clipTrav.CamPos ))
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backfaceclipped = true;
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if (!backfaceclipped && pOtherSideCluster)
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{
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/* If the otherSide cluster is fully visible because the camera is IN, then don't need to clip.
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This is important to landscape test, to ensure that pyramid are strictly equal from 2 paths which
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come from the 2 clusters where the camera start
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*/
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if (pOtherSideCluster->isCameraIn() || pPortal->clipPyramid (clipTrav.CamPos, clipTrav.WorldPyramid))
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{
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pOtherSideCluster->recursTraverseClip(this);
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}
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}
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clipTrav.WorldPyramid = WorldPyrTemp;
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}
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// Link up in hierarchy
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if ((FatherVisible)&&(Father != NULL))
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{
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Father->recursTraverseClip(this);
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}
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// Link down in hierarchy
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for (i = 0; i < Children.size(); ++i)
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if (Children[i]->VisibleFromFather)
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{
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Children[i]->recursTraverseClip(this);
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}
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_Visited = false;
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}
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// ***************************************************************************
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void CCluster::applyMatrix(const NLMISC::CMatrix &m)
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{
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uint32 i;
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CMatrix invM = m;
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invM.invert();
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nlassert(_Volume.size() == _LocalVolume.size());
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// Transform the volume
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for (i = 0; i < _LocalVolume.size(); ++i)
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{
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_Volume[i] = _Volume[i] * invM;
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_LocalVolume[i] = _LocalVolume[i] * invM;
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}
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// Transform the bounding boxes
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_BBox = NLMISC::CAABBox::transformAABBox(m, _BBox);
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_LocalBBox = NLMISC::CAABBox::transformAABBox(m, _LocalBBox);
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}
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// ***************************************************************************
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void CCluster::cameraRayClip(const CVector &start, const CVector &end, std::vector<CCluster*> &clusterVisited)
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{
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uint i;
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if (_Visited)
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return;
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_Visited = true;
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// The cluster is visible because we are in it. add it to the list of cluster (if not already inserted)
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for(i=0;i<clusterVisited.size();i++)
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{
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if(clusterVisited[i]==this)
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break;
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}
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if(i==clusterVisited.size())
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clusterVisited.push_back(this);
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// look through portals
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for (i = 0; i < getNbPortals(); ++i)
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{
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CPortal*pPortal = getPortal (i);
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CCluster *pOtherSideCluster;
|
|
if (pPortal->getCluster(0) == this)
|
|
pOtherSideCluster = pPortal->getCluster (1);
|
|
else
|
|
pOtherSideCluster = pPortal->getCluster (0);
|
|
|
|
/*
|
|
bool backfaceclipped = false;
|
|
if (Father != NULL)
|
|
if (caller == Father) // If the caller is the father
|
|
if (VisibleFromFather)
|
|
// Backface clipping
|
|
if( !pPortal->isInFront( clipTrav.CamPos ))
|
|
backfaceclipped = true;
|
|
if (!backfaceclipped && pOtherSideCluster)*/
|
|
|
|
if (pOtherSideCluster)
|
|
{
|
|
if (pPortal->clipRay (start, end))
|
|
{
|
|
pOtherSideCluster->cameraRayClip(start, end, clusterVisited);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Link up in hierarchy. Test the Inverse Flag, cause the path is inverted here!!!
|
|
ie: if I allow the camera to go out, it MUST can re-enter (ie if I am VisibleFromFather)
|
|
*/
|
|
if ((VisibleFromFather)&&(Father != NULL))
|
|
{
|
|
Father->cameraRayClip(start, end, clusterVisited);
|
|
}
|
|
|
|
// Link down in hierarchy
|
|
for (i = 0; i < Children.size(); ++i)
|
|
{
|
|
// same remark. test FatherVisible, not VisibleFromFather
|
|
if (Children[i]->FatherVisible)
|
|
{
|
|
Children[i]->cameraRayClip(start, end, clusterVisited);
|
|
}
|
|
}
|
|
|
|
_Visited = false;
|
|
}
|
|
|
|
|
|
} // NL3D
|