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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/>.
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