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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 plCutter_inc
#define plCutter_inc
#include "../pnFactory/plCreatable.h"
#include "hsGeometry3.h"
#include "hsTemplates.h"
#include "hsBounds.h"
#include "../plIntersect/plVolumeIsect.h"
#include "hsColorRGBA.h"
struct hsPoint3;
struct hsVector3;
class plPrintCollect;
class plAccTriIterator;
class plAccessSpan;
class plCutoutHit
{
public:
hsPoint3 fPos;
hsVector3 fNorm;
};
class plCutoutVtx
{
public:
plCutoutVtx& Init(const hsPoint3& p, const hsVector3& n, const hsColorRGBA& c) { fPos = p; fNorm = n; fColor = c; return *this; }
hsPoint3 fPos;
hsVector3 fNorm;
hsColorRGBA fColor;
hsPoint3 fUVW;
};
class plCutoutPoly
{
public:
hsTArray<plCutoutVtx> fVerts;
hsBool fBaseHasAlpha;
};
class plCutoutMiniVtx
{
public:
hsPoint3 fPos;
hsPoint3 fUVW;
};
class plFlatGridMesh
{
public:
hsTArray<plCutoutMiniVtx> fVerts;
hsTArray<UInt16> fIdx;
void Reset() { fVerts.SetCount(0); fIdx.SetCount(0); }
};
class plCutter : public plCreatable
{
protected:
// Permanent attributes
hsScalar fLengthU;
hsScalar fLengthV;
hsScalar fLengthW;
// Internal cached stuff
hsScalar fDistU;
hsScalar fDistV;
hsScalar fDistW;
hsVector3 fDirU;
hsVector3 fDirV;
hsVector3 fDirW;
hsVector3 fBackDir;
hsBounds3Ext fWorldBounds;
plBoundsIsect fIsect;
void IConstruct(hsTArray<plCutoutPoly>& dst, hsTArray<plCutoutVtx>& poly, hsBool baseHasAlpha) const;
hsBool IPolyClip(hsTArray<plCutoutVtx>& poly, const hsPoint3 vPos[]) const;
inline void ICutoutVtxHiU(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxHiV(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxHiW(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxLoU(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxLoV(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxLoW(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxMidV(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxMidU(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
inline void ICutoutVtxMidW(const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
hsBool IFindHitPoint(const hsTArray<plCutoutVtx>& inPoly, plCutoutHit& hit) const;
inline void ISetPosNorm(hsScalar parm, const plCutoutVtx& inVtx, const plCutoutVtx& outVtx, plCutoutVtx& dst) const;
void ICutoutTransformed(plAccessSpan& src, hsTArray<plCutoutPoly>& dst) const;
void ICutoutConstHeight(plAccessSpan& src, hsTArray<plCutoutPoly>& dst) const;
void ICutoutTransformedConstHeight(plAccessSpan& src, hsTArray<plCutoutPoly>& dst) const;
public:
plCutter() {}
virtual ~plCutter() {}
CLASSNAME_REGISTER( plCutter );
GETINTERFACE_ANY( plCutter, plCreatable );
virtual void Read(hsStream* stream, hsResMgr* mgr);
virtual void Write(hsStream* stream, hsResMgr* mgr);
hsBool FindHitPoints(const hsTArray<plCutoutPoly>& src, hsTArray<plCutoutHit>& hits) const;
hsBool FindHitPointsConstHeight(const hsTArray<plCutoutPoly>& src, hsTArray<plCutoutHit>& hits, hsScalar height) const;
void Set(const hsPoint3& pos, const hsVector3& dir, const hsVector3& out, hsBool flip=false);
void Cutout(plAccessSpan& src, hsTArray<plCutoutPoly>& dst) const;
hsBool CutoutGrid(int nWid, int nLen, plFlatGridMesh& dst) const;
void SetLength(const hsVector3& s) { fLengthU = s.fX; fLengthV = s.fY; fLengthW = s.fZ; }
hsScalar GetLengthU() const { return fLengthU; }
hsScalar GetLengthV() const { return fLengthV; }
hsScalar GetLengthW() const { return fLengthW; }
const hsBounds3Ext& GetWorldBounds() const { return fWorldBounds; }
plBoundsIsect& GetIsect() { return fIsect; }
hsVector3 GetBackDir() const { return fBackDir; }
static hsBool MakeGrid(int nWid, int nLen, const hsPoint3& center, const hsVector3& halfU, const hsVector3& halfV, plFlatGridMesh& grid);
};
#endif // plCutter_inc