You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
341 lines
12 KiB
341 lines
12 KiB
/*==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 hsBounds_inc |
|
#define hsBounds_inc |
|
|
|
#include "hsGeometry3.h" |
|
#include "hsPoint2.h" |
|
#include "hsMatrix44.h" |
|
|
|
/////////////////////////////////////////////////////////////////////////////// |
|
// BOUNDS |
|
/////////////////////////////////////////////////////////////////////////////// |
|
|
|
enum hsBoundsType |
|
{ |
|
kBoundsNormal, |
|
kBoundsFull, |
|
kBoundsEmpty, |
|
kBoundsUninitialized |
|
}; |
|
|
|
// |
|
// Abstract base class |
|
// |
|
class hsBounds3; |
|
class hsBounds |
|
{ |
|
protected: |
|
hsBoundsType fType; |
|
public: |
|
static const hsScalar kRealSmall; |
|
|
|
hsBounds() : fType(kBoundsUninitialized) { }; |
|
|
|
hsBounds& MakeEmpty() { fType = kBoundsEmpty; return *this; } |
|
hsBounds& MakeFull() { fType = kBoundsFull; return *this; } |
|
hsBoundsType GetType() const { return fType; } |
|
|
|
// |
|
// These set type to kBounds Normal |
|
// |
|
virtual void Reset(const hsBounds3*) = 0; |
|
|
|
virtual hsBool IsInside(const hsPoint3* pos) const =0; // Only valid for kBounds Normal |
|
|
|
virtual void Read(hsStream*); |
|
virtual void Write(hsStream*); |
|
}; |
|
|
|
// |
|
// |
|
// |
|
class hsBounds3 : public hsBounds |
|
{ |
|
public: |
|
enum { |
|
kCenterValid = 0x1, |
|
kIsSphere = 0x2 |
|
}; |
|
protected: |
|
mutable UInt32 fBounds3Flags; |
|
hsPoint3 fMins; |
|
hsPoint3 fMaxs; |
|
mutable hsPoint3 fCenter; |
|
|
|
void ICalcCenter() const; |
|
public: |
|
hsBounds3() : fBounds3Flags(0) {} |
|
hsBounds3(const hsBounds3 &pRHS) : fBounds3Flags(0) { Reset(&pRHS); } |
|
hsBounds3 &operator=(const hsBounds3 &pRHS ) |
|
{ if (&pRHS != this) Reset(&pRHS); return *this; } |
|
|
|
// |
|
// These set type to kBounds Normal |
|
// |
|
virtual void Reset(const hsBounds3*); |
|
virtual void Reset(const hsPoint3 *p); |
|
virtual void Reset(int n, const hsPoint3 *p); |
|
virtual void Union(const hsPoint3 *p); |
|
virtual void Union(const hsBounds3 *b); |
|
virtual void Union(const hsVector3 *v); // smears the bounds in given direction |
|
virtual void MakeSymmetric(const hsPoint3* p); // Expands bounds to be symmetric about p |
|
virtual void InscribeSphere(); |
|
|
|
virtual void Transform(const hsMatrix44*); |
|
|
|
// |
|
// Only valid for kBounds Normal |
|
// |
|
virtual void GetCorners(hsPoint3 *b) const; |
|
const hsPoint3& GetMins() const; |
|
const hsPoint3& GetMaxs() const; |
|
hsScalar GetMaxDim() const; // Computes the answer |
|
const hsPoint3& GetCenter() const; // Computes the answer if not already there |
|
virtual hsBool IsInside(const hsPoint3* pos) const; // ok for full/empty |
|
virtual void TestPlane(const hsVector3 &n, hsPoint2 &depth) const; |
|
virtual void TestPlane(const hsPlane3 *p, hsPoint2 &depth) const; |
|
virtual hsBool ClosestPoint(const hsPoint3& p, hsPoint3& inner, hsPoint3& outer) const; |
|
|
|
// Test according to my axes only, doesn't check other's axes |
|
// neg, pos, zero == disjoint, I contain other, overlap |
|
virtual Int32 TestBound(const hsBounds3& other) const; |
|
|
|
static hsScalar ClosestPointToLine(const hsPoint3 *p, const hsPoint3 *v0, const hsPoint3 *v1, hsPoint3 *out); |
|
static hsScalar ClosestPointToInfiniteLine(const hsPoint3* p, const hsVector3* v, hsPoint3* out); |
|
|
|
virtual void Read(hsStream*); |
|
virtual void Write(hsStream*); |
|
}; |
|
|
|
inline void hsBounds3::ICalcCenter() const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for ICalcCenter"); |
|
fCenter = ((fMins + fMaxs) / 2.0); |
|
fBounds3Flags |= kCenterValid; |
|
} |
|
inline void hsBounds3::GetCorners(hsPoint3 *b) const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for GetCorners"); |
|
for(int i = 0; i < 8; i++) |
|
{ |
|
b[i][0] = (i & 0x1) ? fMins[0] : fMaxs[0]; |
|
b[i][1] = (i & 0x2) ? fMins[1] : fMaxs[1]; |
|
b[i][2] = (i & 0x4) ? fMins[2] : fMaxs[2]; |
|
} |
|
} |
|
inline const hsPoint3& hsBounds3::GetMins() const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for GetMins"); |
|
return fMins; |
|
} |
|
inline const hsPoint3& hsBounds3::GetMaxs() const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for GetMaxs"); |
|
return fMaxs; |
|
} |
|
|
|
inline const hsPoint3& hsBounds3::GetCenter() const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for GetCenter"); |
|
if(!(fBounds3Flags & kCenterValid)) |
|
ICalcCenter(); |
|
return fCenter; |
|
} |
|
|
|
inline hsScalar hsBounds3::GetMaxDim() const |
|
{ |
|
hsAssert(kBoundsNormal == fType, "Invalid type for GetMaxDim"); |
|
return hsMaximum(hsMaximum(fMaxs.fX-fMins.fX, fMaxs.fY-fMins.fY), fMaxs.fZ-fMins.fZ); |
|
} |
|
|
|
// |
|
// A convex region specified by a series of planes. |
|
// |
|
class hsBoundsOriented : public hsBounds |
|
{ |
|
private: |
|
hsBool fCenterValid; |
|
hsPoint3 fCenter; |
|
hsPlane3 *fPlanes; |
|
UInt32 fNumPlanes; |
|
public: |
|
hsBoundsOriented() : fPlanes(nil),fNumPlanes(0),fCenterValid(false) {} |
|
virtual ~hsBoundsOriented() { if (fPlanes) delete [] fPlanes; } |
|
|
|
// Center is not computed by the class, it must be set by the creator of the class. |
|
void SetCenter(const hsPoint3* c) { fCenter=*c; fCenterValid = true; } |
|
void SetCenter(const hsBounds3* b) { hsBounds3 bb=*b; fCenter=bb.GetCenter(); fCenterValid = true; } |
|
void SetCenter(const hsBoundsOriented* b) { fCenter=b->GetCenter(); fCenterValid = true; } |
|
hsPoint3 GetCenter() const; |
|
|
|
void SetNumberPlanes(UInt32 n); |
|
|
|
hsPlane3* GetPlane(int i) { return &fPlanes[i]; } |
|
int GetNumPlanes() { return fNumPlanes; } |
|
|
|
// |
|
// These set type to kBounds Normal |
|
// |
|
virtual void Reset(const hsBounds3*); |
|
void SetPlane(UInt32 i, hsPlane3 *p); |
|
|
|
// |
|
// Only valid for kBounds Normal |
|
// |
|
virtual hsBool IsInside(const hsPoint3* pos) const; |
|
virtual void TestPlane(const hsVector3 &n, hsPoint2 &depth) const; // Complain and refuse |
|
|
|
virtual void Write(hsStream *stream); |
|
virtual void Read(hsStream *stream); |
|
}; |
|
|
|
class hsHitInfoExt; |
|
class hsBounds3Ext : public hsBounds3 { |
|
protected: |
|
enum { |
|
kAxisAligned =0x1, |
|
kSphereSet =0x2, |
|
kDistsSet =0x4, |
|
kAxisZeroZero =(1<<20), |
|
kAxisOneZero =(1<<21), |
|
kAxisTwoZero =(1<<22) |
|
}; |
|
mutable UInt32 fExtFlags; |
|
hsPoint3 fCorner; |
|
hsVector3 fAxes[3]; |
|
mutable hsPoint2 fDists[3]; |
|
mutable hsScalar fRadius; |
|
|
|
hsBool IAxisIsZero(UInt32 i) const { return (fExtFlags & (1 << (20+i))) != 0; }; |
|
void IMakeSphere() const; |
|
void IMakeDists() const; |
|
void IMakeMinsMaxs(); |
|
public: |
|
hsBounds3Ext() : fExtFlags(kAxisAligned) {}; |
|
|
|
hsBounds3Ext(const hsBounds3 &b); |
|
hsBounds3Ext &operator=(const hsBounds3 &b); |
|
hsBounds3Ext(const hsBounds3Ext &pRHS) { Reset(&pRHS); } |
|
hsBounds3Ext &operator=(const hsBounds3Ext &pRHS ) |
|
{ if (&pRHS != this) Reset(&pRHS); return *this; } |
|
|
|
virtual void Reset(const hsBounds3Ext *b); |
|
virtual void Reset(const hsBounds3 *b); |
|
virtual void Reset(const hsPoint3 *p); |
|
virtual void Reset(int n, const hsPoint3 *p); |
|
|
|
virtual void Union(const hsPoint3 *p); |
|
virtual void Union(const hsBounds3 *b); |
|
|
|
virtual void Union(const hsVector3 *v); // smears the bounds in given direction |
|
virtual void MakeSymmetric(const hsPoint3* p); // Expands bounds to be symmetric about p |
|
virtual void InscribeSphere(); |
|
virtual void Unalign(); |
|
|
|
virtual void Transform(const hsMatrix44 *m); |
|
virtual void Translate(const hsVector3 &v); |
|
|
|
virtual hsScalar GetRadius() const; |
|
virtual void GetAxes(hsVector3 *fAxis0, hsVector3 *fAxis1, hsVector3 *fAxis2) const; |
|
virtual hsPoint3 *GetCorner(hsPoint3 *c) const { *c = (fExtFlags & kAxisAligned ? fMins : fCorner); return c; } |
|
virtual void GetCorners(hsPoint3 *b) const; |
|
virtual hsBool ClosestPoint(const hsPoint3& p, hsPoint3& inner, hsPoint3& outer) const; |
|
|
|
virtual hsBool IsInside(const hsPoint3* pos) const; // ok for full/empty |
|
|
|
virtual void TestPlane(const hsVector3 &n, hsPoint2 &depth) const; |
|
virtual Int32 TestPoints(int n, const hsPoint3 *pList) const; // pos,neg,zero == allout, allin, cut |
|
|
|
// Test according to my axes only, doesn't check other's axes |
|
// neg, pos, zero == disjoint, I contain other, overlap |
|
virtual Int32 TestBound(const hsBounds3Ext& other) const; |
|
|
|
virtual void TestPlane(const hsVector3 &n, const hsVector3 &myVel, hsPoint2 &depth) const; |
|
virtual void TestPlane(const hsPlane3 *p, const hsVector3 &myVel, hsPoint2 &depth) const; |
|
virtual Int32 TestPoints(int n, const hsPoint3 *pList, const hsVector3 &ptVel) const; // pos,neg,zero == allout, allin, cut |
|
virtual hsBool ISectBB(const hsBounds3Ext &other, const hsVector3 &myVel) const; |
|
virtual hsBool ISectBB(const hsBounds3Ext &other, const hsVector3 &myVel, hsHitInfoExt *hit) const; |
|
virtual hsBool ISectABB(const hsBounds3Ext &other, const hsVector3 &myVel) const; |
|
virtual hsBool ISectBS(const hsBounds3Ext &other, const hsVector3 &myVel) const; |
|
|
|
virtual Int32 IClosestISect(const hsBounds3Ext& other, const hsVector3& myVel, |
|
hsScalar* tClose, hsScalar* tImpact) const; |
|
virtual hsBool ISectBoxBS(const hsBounds3Ext &other, const hsVector3 &myVel, hsHitInfoExt *hit) const; |
|
virtual hsBool ISectBSBox(const hsBounds3Ext &other, const hsVector3 &myVel, hsHitInfoExt *hit) const; |
|
virtual hsBool ISectBoxBS(const hsBounds3Ext &other, const hsVector3 &myVel) const; |
|
virtual hsBool ISectBSBS(const hsBounds3Ext &other, const hsVector3 &myVel, hsHitInfoExt *hit) const; |
|
|
|
virtual hsBool ISectLine(const hsPoint3* from, const hsPoint3* to) const; |
|
virtual hsBool ISectCone(const hsPoint3* from, const hsPoint3* to, hsScalar radius) const; |
|
virtual hsBool ISectRayBS(const hsPoint3& from, const hsPoint3& to, hsPoint3& at) const; |
|
|
|
virtual void Read(hsStream *s); |
|
virtual void Write(hsStream *s); |
|
}; |
|
|
|
inline hsScalar hsBounds3Ext::GetRadius() const |
|
{ |
|
if( !(fExtFlags & kSphereSet) ) |
|
IMakeSphere(); |
|
return fRadius; |
|
} |
|
|
|
class hsHitInfoExt { |
|
public: |
|
hsScalar fDepth; |
|
hsVector3 fNormal; |
|
hsVector3 fDelPos; |
|
|
|
const hsBounds3Ext* fBoxBnd; |
|
const hsBounds3Ext* fOtherBoxBnd; |
|
const hsPoint3* fRootCenter; |
|
|
|
hsHitInfoExt(const hsPoint3 *ctr, const hsVector3& offset) { fRootCenter=ctr; fDelPos=offset; }; |
|
|
|
void Set(const hsBounds3Ext *m, const hsVector3* n, hsScalar d) |
|
{ fDepth = d; fBoxBnd = m; fNormal = *n; fOtherBoxBnd = nil; } |
|
void Set(const hsBounds3Ext *m, const hsBounds3Ext *o, const hsVector3 &norm, hsScalar d) |
|
{ fDepth = d; fBoxBnd = m, fOtherBoxBnd = o; fNormal = norm; } |
|
}; |
|
#endif // hsBounds_inc
|
|
|