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DavidWyand-GG 2012-09-19 11:15:01 -04:00
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Engine/lib/opcode/OPC_PlanesCollider.h Normal file
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/*
* OPCODE - Optimized Collision Detection
* Copyright (C) 2001 Pierre Terdiman
* Homepage: http://www.codercorner.com/Opcode.htm
*/
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Contains code for a planes collider.
* \file OPC_PlanesCollider.h
* \author Pierre Terdiman
* \date January, 1st, 2002
*/
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Include Guard
#ifndef __OPC_PLANESCOLLIDER_H__
#define __OPC_PLANESCOLLIDER_H__
struct OPCODE_API PlanesCache : VolumeCache
{
PlanesCache()
{
}
};
class OPCODE_API PlanesCollider : public VolumeCollider
{
public:
// Constructor / Destructor
PlanesCollider();
virtual ~PlanesCollider();
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Generic collision query for generic OPCODE models. After the call, access the results:
* - with GetContactStatus()
* - with GetNbTouchedPrimitives()
* - with GetTouchedPrimitives()
*
* \param cache [in/out] a planes cache
* \param planes [in] list of planes in world space
* \param nb_planes [in] number of planes
* \param model [in] Opcode model to collide with
* \param worldm [in] model's world matrix, or null
* \return true if success
* \warning SCALE NOT SUPPORTED. The matrices must contain rotation & translation parts only.
*/
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
bool Collide(PlanesCache& cache, const Plane* planes, udword nb_planes, const Model& model, const Matrix4x4* worldm=null);
// Mutant box-with-planes collision queries
inline_ bool Collide(PlanesCache& cache, const OBB& box, const Model& model, const Matrix4x4* worldb=null, const Matrix4x4* worldm=null)
{
Plane PL[6];
if(worldb)
{
// Create a new OBB in world space
OBB WorldBox;
box.Rotate(*worldb, WorldBox);
// Compute planes from the sides of the box
WorldBox.ComputePlanes(PL);
}
else
{
// Compute planes from the sides of the box
box.ComputePlanes(PL);
}
// Collide with box planes
return Collide(cache, PL, 6, model, worldm);
}
// Settings
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Validates current settings. You should call this method after all the settings and callbacks have been defined for a collider.
* \return null if everything is ok, else a string describing the problem
*/
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
override(Collider) const char* ValidateSettings();
protected:
// Planes in model space
udword mNbPlanes;
Plane* mPlanes;
// Leaf description
VertexPointers mVP;
// Internal methods
void _Collide(const AABBCollisionNode* node, udword clip_mask);
void _Collide(const AABBNoLeafNode* node, udword clip_mask);
void _Collide(const AABBQuantizedNode* node, udword clip_mask);
void _Collide(const AABBQuantizedNoLeafNode* node, udword clip_mask);
void _CollideNoPrimitiveTest(const AABBCollisionNode* node, udword clip_mask);
void _CollideNoPrimitiveTest(const AABBNoLeafNode* node, udword clip_mask);
void _CollideNoPrimitiveTest(const AABBQuantizedNode* node, udword clip_mask);
void _CollideNoPrimitiveTest(const AABBQuantizedNoLeafNode* node, udword clip_mask);
// Overlap tests
inline_ BOOL PlanesAABBOverlap(const Point& center, const Point& extents, udword& out_clip_mask, udword in_clip_mask);
inline_ BOOL PlanesTriOverlap(udword in_clip_mask);
// Init methods
BOOL InitQuery(PlanesCache& cache, const Plane* planes, udword nb_planes, const Matrix4x4* worldm=null);
};
class OPCODE_API HybridPlanesCollider : public PlanesCollider
{
public:
// Constructor / Destructor
HybridPlanesCollider();
virtual ~HybridPlanesCollider();
bool Collide(PlanesCache& cache, const Plane* planes, udword nb_planes, const HybridModel& model, const Matrix4x4* worldm=null);
protected:
OPC_Container mTouchedBoxes;
};
#endif // __OPC_PLANESCOLLIDER_H__