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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef plVolumeIsect_inc
#define plVolumeIsect_inc
#include "hsGeometry3.h"
#include "hsMatrix44.h"
#include "hsTemplates.h"
#include "hsBounds.h"
#include "../pnFactory/plCreatable.h"
class hsBounds3Ext;
enum plVolumeCullResult
{
kVolumeClear = 0x0,
kVolumeCulled = 0x1,
kVolumeSplit = 0x2
};
class plVolumeIsect : public plCreatable
{
public:
CLASSNAME_REGISTER( plVolumeIsect );
GETINTERFACE_ANY( plVolumeIsect, plCreatable );
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l) = 0;
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const = 0;
virtual hsScalar Test(const hsPoint3& pos) const = 0;
virtual void Read(hsStream* s, hsResMgr* mgr) = 0;
virtual void Write(hsStream* s, hsResMgr* mgr) = 0;
};
class plSphereIsect : public plVolumeIsect
{
protected:
hsPoint3 fCenter;
hsPoint3 fWorldCenter;
hsScalar fRadius;
hsPoint3 fMins;
hsPoint3 fMaxs;
public:
plSphereIsect();
virtual ~plSphereIsect();
CLASSNAME_REGISTER( plSphereIsect );
GETINTERFACE_ANY( plSphereIsect, plVolumeIsect );
void SetCenter(const hsPoint3& c);
void SetRadius(hsScalar r);
hsScalar GetRadius() const { return fRadius; }
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const; // return 0 if point inside, else "distance" from pos to volume
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plConeIsect : public plVolumeIsect
{
protected:
hsBool fCapped;
hsScalar fRadAngle;
hsScalar fLength;
hsPoint3 fWorldTip;
hsVector3 fWorldNorm;
hsMatrix44 fWorldToNDC;
hsMatrix44 fLightToNDC;
hsVector3 fNorms[5];
hsScalar fDists[5];
void ISetup();
public:
plConeIsect();
virtual ~plConeIsect();
CLASSNAME_REGISTER( plConeIsect );
GETINTERFACE_ANY( plConeIsect, plVolumeIsect );
void SetAngle(hsScalar rads);
void SetLength(hsScalar d);
hsScalar GetLength() const { return fCapped ? fLength : 0; }
hsScalar GetAngle() const { return fRadAngle; }
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plCylinderIsect : public plVolumeIsect
{
protected:
hsPoint3 fTop;
hsPoint3 fBot;
hsScalar fRadius;
hsPoint3 fWorldBot;
hsVector3 fWorldNorm;
hsScalar fLength;
hsScalar fMin;
hsScalar fMax;
void ISetupCyl(const hsPoint3& wTop, const hsPoint3& wBot, hsScalar radius);
public:
plCylinderIsect();
virtual ~plCylinderIsect();
CLASSNAME_REGISTER( plCylinderIsect );
GETINTERFACE_ANY( plCylinderIsect, plVolumeIsect );
void SetCylinder(const hsPoint3& lTop, const hsPoint3& lBot, hsScalar radius);
void SetCylinder(const hsPoint3& lBot, const hsVector3& axis, hsScalar radius);
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plParallelIsect : public plVolumeIsect
{
protected:
class ParPlane
{
public:
hsVector3 fNorm;
hsScalar fMin;
hsScalar fMax;
hsPoint3 fPosOne;
hsPoint3 fPosTwo;
};
hsTArray<ParPlane> fPlanes;
public:
plParallelIsect();
virtual ~plParallelIsect();
CLASSNAME_REGISTER( plParallelIsect );
GETINTERFACE_ANY( plParallelIsect, plVolumeIsect );
void SetNumPlanes(int n); // each plane is really two parallel planes
UInt16 GetNumPlanes() const { return fPlanes.GetCount(); }
void SetPlane(int which, const hsPoint3& locPosOne, const hsPoint3& locPosTwo);
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plConvexIsect : public plVolumeIsect
{
protected:
class SinglePlane
{
public:
hsVector3 fNorm;
hsScalar fDist;
hsPoint3 fPos;
hsVector3 fWorldNorm;
hsScalar fWorldDist;
};
hsTArray<SinglePlane> fPlanes;
public:
plConvexIsect();
virtual ~plConvexIsect();
CLASSNAME_REGISTER( plConvexIsect );
GETINTERFACE_ANY( plConvexIsect, plVolumeIsect );
void ClearPlanes() { fPlanes.SetCount(0); }
void AddPlaneUnchecked(const hsVector3& n, hsScalar dist); // no validation here
void AddPlane(const hsVector3& n, const hsPoint3& p);
UInt16 GetNumPlanes() const { return fPlanes.GetCount(); }
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plBoundsIsect : public plVolumeIsect
{
protected:
hsBounds3Ext fLocalBounds;
hsBounds3Ext fWorldBounds;
public:
plBoundsIsect();
virtual ~plBoundsIsect();
CLASSNAME_REGISTER( plBoundsIsect );
GETINTERFACE_ANY( plBoundsIsect, plVolumeIsect );
void SetBounds(const hsBounds3Ext& bnd);
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plComplexIsect : public plVolumeIsect
{
protected:
hsTArray<plVolumeIsect*> fVolumes;
public:
plComplexIsect();
virtual ~plComplexIsect();
CLASSNAME_REGISTER( plComplexIsect );
GETINTERFACE_ANY( plComplexIsect, plVolumeIsect );
void AddVolume(plVolumeIsect* v); // Will capture pointer
UInt16 GetNumVolumes() const { return fVolumes.GetCount(); }
virtual void SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l);
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
};
class plUnionIsect : public plComplexIsect
{
public:
plUnionIsect();
~plUnionIsect();
CLASSNAME_REGISTER( plUnionIsect );
GETINTERFACE_ANY( plUnionIsect, plComplexIsect );
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
};
class plIntersectionIsect : public plComplexIsect
{
public:
plIntersectionIsect();
~plIntersectionIsect();
CLASSNAME_REGISTER( plIntersectionIsect );
GETINTERFACE_ANY( plIntersectionIsect, plComplexIsect );
virtual plVolumeCullResult Test(const hsBounds3Ext& bnd) const;
virtual hsScalar Test(const hsPoint3& pos) const;
};
#endif // plVolumeIsect_inc