504 lines
17 KiB
C++
504 lines
17 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef COLLISIONPROPERTY_H
|
|
#define COLLISIONPROPERTY_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "networkvar.h"
|
|
#include "engine/ICollideable.h"
|
|
#include "mathlib/vector.h"
|
|
#include "ispatialpartition.h"
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Forward declarations
|
|
//-----------------------------------------------------------------------------
|
|
class CBaseEntity;
|
|
class IHandleEntity;
|
|
class QAngle;
|
|
class Vector;
|
|
struct Ray_t;
|
|
class IPhysicsObject;
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Force spatial partition updates (to avoid threading problems caused by lazy update)
|
|
//-----------------------------------------------------------------------------
|
|
void UpdateDirtySpatialPartitionEntities();
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Specifies how to compute the surrounding box
|
|
//-----------------------------------------------------------------------------
|
|
enum SurroundingBoundsType_t
|
|
{
|
|
USE_OBB_COLLISION_BOUNDS = 0,
|
|
USE_BEST_COLLISION_BOUNDS, // Always use the best bounds (most expensive)
|
|
USE_HITBOXES,
|
|
USE_SPECIFIED_BOUNDS,
|
|
USE_GAME_CODE,
|
|
USE_ROTATION_EXPANDED_BOUNDS,
|
|
USE_COLLISION_BOUNDS_NEVER_VPHYSICS,
|
|
|
|
SURROUNDING_TYPE_BIT_COUNT = 3
|
|
};
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Encapsulates collision representation for an entity
|
|
//-----------------------------------------------------------------------------
|
|
class CCollisionProperty : public ICollideable
|
|
{
|
|
DECLARE_CLASS_NOBASE( CCollisionProperty );
|
|
DECLARE_EMBEDDED_NETWORKVAR();
|
|
DECLARE_PREDICTABLE();
|
|
|
|
#ifdef GAME_DLL
|
|
DECLARE_DATADESC();
|
|
#endif
|
|
|
|
public:
|
|
CCollisionProperty();
|
|
~CCollisionProperty();
|
|
|
|
void Init( CBaseEntity *pEntity );
|
|
|
|
// Methods of ICollideable
|
|
virtual IHandleEntity *GetEntityHandle();
|
|
virtual const Vector& OBBMinsPreScaled() const { return m_vecMinsPreScaled.Get(); }
|
|
virtual const Vector& OBBMaxsPreScaled() const { return m_vecMaxsPreScaled.Get(); }
|
|
virtual const Vector& OBBMins() const { return m_vecMins.Get(); }
|
|
virtual const Vector& OBBMaxs() const { return m_vecMaxs.Get(); }
|
|
virtual void WorldSpaceTriggerBounds( Vector *pVecWorldMins, Vector *pVecWorldMaxs ) const;
|
|
virtual bool TestCollision( const Ray_t &ray, unsigned int fContentsMask, trace_t& tr );
|
|
virtual bool TestHitboxes( const Ray_t &ray, unsigned int fContentsMask, trace_t& tr );
|
|
virtual int GetCollisionModelIndex();
|
|
virtual const model_t* GetCollisionModel();
|
|
virtual const Vector& GetCollisionOrigin() const;
|
|
virtual const QAngle& GetCollisionAngles() const;
|
|
virtual const matrix3x4_t& CollisionToWorldTransform() const;
|
|
virtual SolidType_t GetSolid() const;
|
|
virtual int GetSolidFlags() const;
|
|
virtual IClientUnknown* GetIClientUnknown();
|
|
virtual int GetCollisionGroup() const;
|
|
virtual void WorldSpaceSurroundingBounds( Vector *pVecMins, Vector *pVecMaxs );
|
|
virtual bool ShouldTouchTrigger( int triggerSolidFlags ) const;
|
|
virtual const matrix3x4_t *GetRootParentToWorldTransform() const;
|
|
|
|
public:
|
|
// Spatial partition management
|
|
void CreatePartitionHandle();
|
|
void DestroyPartitionHandle();
|
|
unsigned short GetPartitionHandle() const;
|
|
|
|
// Marks the spatial partition dirty
|
|
void MarkPartitionHandleDirty();
|
|
|
|
// Sets the collision bounds + the size (OBB)
|
|
void SetCollisionBounds( const Vector& mins, const Vector &maxs );
|
|
|
|
// Rebuilds the scaled bounds from the pre-scaled bounds after a model's scale has changed
|
|
void RefreshScaledCollisionBounds( void );
|
|
|
|
// Sets special trigger bounds. The bloat amount indicates how much bigger the
|
|
// trigger bounds should be beyond the bounds set in SetCollisionBounds
|
|
// This method will also set the FSOLID flag FSOLID_USE_TRIGGER_BOUNDS
|
|
void UseTriggerBounds( bool bEnable, float flBloat = 0.0f );
|
|
|
|
// Sets the method by which the surrounding collision bounds is set
|
|
// You must pass in values for mins + maxs if you select the USE_SPECIFIED_BOUNDS type.
|
|
void SetSurroundingBoundsType( SurroundingBoundsType_t type, const Vector *pMins = NULL, const Vector *pMaxs = NULL );
|
|
|
|
// Sets the solid type (which type of collision representation)
|
|
void SetSolid( SolidType_t val );
|
|
|
|
// Methods related to size. The OBB here is measured in CollisionSpace
|
|
// (specified by GetCollisionToWorld)
|
|
const Vector& OBBSize( ) const;
|
|
|
|
// Returns a radius (or the square of the radius) of a sphere
|
|
// *centered at the world space center* bounding the collision representation
|
|
// of the entity. NOTE: The world space center *may* move when the entity rotates.
|
|
float BoundingRadius() const;
|
|
float BoundingRadius2D() const;
|
|
|
|
// Returns the center of the OBB in collision space
|
|
const Vector & OBBCenter( ) const;
|
|
|
|
// center point of entity measured in world space
|
|
// NOTE: This point *may* move when the entity moves depending on
|
|
// which solid type is being used.
|
|
const Vector & WorldSpaceCenter( ) const;
|
|
|
|
// Methods related to solid flags
|
|
void ClearSolidFlags( void );
|
|
void RemoveSolidFlags( int flags );
|
|
void AddSolidFlags( int flags );
|
|
bool IsSolidFlagSet( int flagMask ) const;
|
|
void SetSolidFlags( int flags );
|
|
bool IsSolid() const;
|
|
|
|
// Updates the spatial partition
|
|
void UpdatePartition( );
|
|
|
|
// Are the bounds defined in entity space?
|
|
bool IsBoundsDefinedInEntitySpace() const;
|
|
|
|
// Transforms a point in OBB space to world space
|
|
const Vector & CollisionToWorldSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Transforms a point in world space to OBB space
|
|
const Vector & WorldToCollisionSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Transforms a direction in world space to OBB space
|
|
const Vector & WorldDirectionToCollisionSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Selects a random point in the bounds given the normalized 0-1 bounds
|
|
void RandomPointInBounds( const Vector &vecNormalizedMins, const Vector &vecNormalizedMaxs, Vector *pPoint) const;
|
|
|
|
// Is a worldspace point within the bounds of the OBB?
|
|
bool IsPointInBounds( const Vector &vecWorldPt ) const;
|
|
|
|
// Computes a bounding box in world space surrounding the collision bounds
|
|
void WorldSpaceAABB( Vector *pWorldMins, Vector *pWorldMaxs ) const;
|
|
|
|
// Get the collision space mins directly
|
|
const Vector & CollisionSpaceMins( void ) const;
|
|
|
|
// Get the collision space maxs directly
|
|
const Vector & CollisionSpaceMaxs( void ) const;
|
|
|
|
// Computes a "normalized" point (range 0,0,0 - 1,1,1) in collision space
|
|
// Useful for things like getting a point 75% of the way along z on the OBB, for example
|
|
const Vector & NormalizedToCollisionSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Computes a "normalized" point (range 0,0,0 - 1,1,1) in world space
|
|
const Vector & NormalizedToWorldSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Transforms a point in world space to normalized space
|
|
const Vector & WorldToNormalizedSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Transforms a point in collision space to normalized space
|
|
const Vector & CollisionToNormalizedSpace( const Vector &in, Vector *pResult ) const;
|
|
|
|
// Computes the nearest point in the OBB to a point specified in world space
|
|
void CalcNearestPoint( const Vector &vecWorldPt, Vector *pVecNearestWorldPt ) const;
|
|
|
|
// Computes the distance from a point in world space to the OBB
|
|
float CalcDistanceFromPoint( const Vector &vecWorldPt ) const;
|
|
|
|
// Does a rotation make us need to recompute the surrounding box?
|
|
bool DoesRotationInvalidateSurroundingBox( ) const;
|
|
|
|
// Does VPhysicsUpdate make us need to recompute the surrounding box?
|
|
bool DoesVPhysicsInvalidateSurroundingBox( ) const;
|
|
|
|
// Marks the entity has having a dirty surrounding box
|
|
void MarkSurroundingBoundsDirty();
|
|
|
|
// Compute the largest dot product of the OBB and the specified direction vector
|
|
float ComputeSupportMap( const Vector &vecDirection ) const;
|
|
|
|
private:
|
|
// Transforms an AABB measured in collision space to a box that surrounds it in world space
|
|
void CollisionAABBToWorldAABB( const Vector &entityMins, const Vector &entityMaxs, Vector *pWorldMins, Vector *pWorldMaxs ) const;
|
|
|
|
// Expand trigger bounds..
|
|
void ComputeVPhysicsSurroundingBox( Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
|
|
// Expand trigger bounds..
|
|
bool ComputeHitboxSurroundingBox( Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
bool ComputeEntitySpaceHitboxSurroundingBox( Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
|
|
// Computes the surrounding collision bounds based on whatever algorithm we want...
|
|
void ComputeCollisionSurroundingBox( bool bUseVPhysics, Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
|
|
// Computes the surrounding collision bounds from the the OBB (not vphysics)
|
|
void ComputeRotationExpandedBounds( Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
|
|
// Computes the surrounding collision bounds based on whatever algorithm we want...
|
|
void ComputeSurroundingBox( Vector *pVecWorldMins, Vector *pVecWorldMaxs );
|
|
|
|
// Check for untouch
|
|
void CheckForUntouch();
|
|
|
|
// Updates the spatial partition
|
|
void UpdateServerPartitionMask( );
|
|
|
|
// Outer
|
|
CBaseEntity *GetOuter();
|
|
const CBaseEntity *GetOuter() const;
|
|
|
|
private:
|
|
CBaseEntity *m_pOuter;
|
|
|
|
CNetworkVector( m_vecMinsPreScaled );
|
|
CNetworkVector( m_vecMaxsPreScaled );
|
|
CNetworkVector( m_vecMins );
|
|
CNetworkVector( m_vecMaxs );
|
|
float m_flRadius;
|
|
|
|
CNetworkVar( unsigned short, m_usSolidFlags );
|
|
|
|
// Spatial partition
|
|
SpatialPartitionHandle_t m_Partition;
|
|
CNetworkVar( unsigned char, m_nSurroundType );
|
|
|
|
// One of the SOLID_ defines. Use GetSolid/SetSolid.
|
|
CNetworkVar( unsigned char, m_nSolidType );
|
|
CNetworkVar( unsigned char , m_triggerBloat );
|
|
|
|
// SUCKY: We didn't use to have to store this previously
|
|
// but storing it here means that we can network it + avoid a ton of
|
|
// client-side mismatch problems
|
|
CNetworkVector( m_vecSpecifiedSurroundingMinsPreScaled );
|
|
CNetworkVector( m_vecSpecifiedSurroundingMaxsPreScaled );
|
|
CNetworkVector( m_vecSpecifiedSurroundingMins );
|
|
CNetworkVector( m_vecSpecifiedSurroundingMaxs );
|
|
|
|
// Cached off world-aligned surrounding bounds
|
|
#if 0
|
|
short m_surroundingMins[3];
|
|
short m_surroundingMaxs[3];
|
|
#else
|
|
Vector m_vecSurroundingMins;
|
|
Vector m_vecSurroundingMaxs;
|
|
#endif
|
|
|
|
// pointer to the entity's physics object (vphysics.dll)
|
|
//IPhysicsObject *m_pPhysicsObject;
|
|
|
|
friend class CBaseEntity;
|
|
};
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// For networking this bad boy
|
|
//-----------------------------------------------------------------------------
|
|
#ifdef CLIENT_DLL
|
|
EXTERN_RECV_TABLE( DT_CollisionProperty );
|
|
#else
|
|
EXTERN_SEND_TABLE( DT_CollisionProperty );
|
|
#endif
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Inline methods
|
|
//-----------------------------------------------------------------------------
|
|
inline CBaseEntity *CCollisionProperty::GetOuter()
|
|
{
|
|
return m_pOuter;
|
|
}
|
|
|
|
inline const CBaseEntity *CCollisionProperty::GetOuter() const
|
|
{
|
|
return m_pOuter;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Spatial partition
|
|
//-----------------------------------------------------------------------------
|
|
inline unsigned short CCollisionProperty::GetPartitionHandle() const
|
|
{
|
|
return m_Partition;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Methods related to size
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector& CCollisionProperty::OBBSize( ) const
|
|
{
|
|
// NOTE: Could precache this, but it's not used that often..
|
|
Vector &temp = AllocTempVector();
|
|
VectorSubtract( m_vecMaxs, m_vecMins, temp );
|
|
return temp;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Bounding radius size
|
|
//-----------------------------------------------------------------------------
|
|
inline float CCollisionProperty::BoundingRadius() const
|
|
{
|
|
return m_flRadius;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Methods relating to solid flags
|
|
//-----------------------------------------------------------------------------
|
|
inline bool CCollisionProperty::IsBoundsDefinedInEntitySpace() const
|
|
{
|
|
return (( m_usSolidFlags & FSOLID_FORCE_WORLD_ALIGNED ) == 0 ) &&
|
|
( m_nSolidType != SOLID_BBOX ) && ( m_nSolidType != SOLID_NONE );
|
|
}
|
|
|
|
inline void CCollisionProperty::ClearSolidFlags( void )
|
|
{
|
|
SetSolidFlags( 0 );
|
|
}
|
|
|
|
inline void CCollisionProperty::RemoveSolidFlags( int flags )
|
|
{
|
|
SetSolidFlags( m_usSolidFlags & ~flags );
|
|
}
|
|
|
|
inline void CCollisionProperty::AddSolidFlags( int flags )
|
|
{
|
|
SetSolidFlags( m_usSolidFlags | flags );
|
|
}
|
|
|
|
inline int CCollisionProperty::GetSolidFlags( void ) const
|
|
{
|
|
return m_usSolidFlags;
|
|
}
|
|
|
|
inline bool CCollisionProperty::IsSolidFlagSet( int flagMask ) const
|
|
{
|
|
return (m_usSolidFlags & flagMask) != 0;
|
|
}
|
|
|
|
inline bool CCollisionProperty::IsSolid() const
|
|
{
|
|
return ::IsSolid( (SolidType_t)(unsigned char)m_nSolidType, m_usSolidFlags );
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Returns the center in OBB space
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector& CCollisionProperty::OBBCenter( ) const
|
|
{
|
|
Vector &vecResult = AllocTempVector();
|
|
VectorLerp( m_vecMins, m_vecMaxs, 0.5f, vecResult );
|
|
return vecResult;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// center point of entity
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector &CCollisionProperty::WorldSpaceCenter( ) const
|
|
{
|
|
Vector &vecResult = AllocTempVector();
|
|
CollisionToWorldSpace( OBBCenter(), &vecResult );
|
|
return vecResult;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Transforms a point in OBB space to world space
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector &CCollisionProperty::CollisionToWorldSpace( const Vector &in, Vector *pResult ) const
|
|
{
|
|
// Makes sure we don't re-use the same temp twice
|
|
if ( !IsBoundsDefinedInEntitySpace() || ( GetCollisionAngles() == vec3_angle ) )
|
|
{
|
|
VectorAdd( in, GetCollisionOrigin(), *pResult );
|
|
}
|
|
else
|
|
{
|
|
VectorTransform( in, CollisionToWorldTransform(), *pResult );
|
|
}
|
|
return *pResult;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Transforms a point in world space to OBB space
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector &CCollisionProperty::WorldToCollisionSpace( const Vector &in, Vector *pResult ) const
|
|
{
|
|
if ( !IsBoundsDefinedInEntitySpace() || ( GetCollisionAngles() == vec3_angle ) )
|
|
{
|
|
VectorSubtract( in, GetCollisionOrigin(), *pResult );
|
|
}
|
|
else
|
|
{
|
|
VectorITransform( in, CollisionToWorldTransform(), *pResult );
|
|
}
|
|
return *pResult;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Transforms a direction in world space to OBB space
|
|
//-----------------------------------------------------------------------------
|
|
inline const Vector & CCollisionProperty::WorldDirectionToCollisionSpace( const Vector &in, Vector *pResult ) const
|
|
{
|
|
if ( !IsBoundsDefinedInEntitySpace() || ( GetCollisionAngles() == vec3_angle ) )
|
|
{
|
|
*pResult = in;
|
|
}
|
|
else
|
|
{
|
|
VectorIRotate( in, CollisionToWorldTransform(), *pResult );
|
|
}
|
|
return *pResult;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Computes a bounding box in world space surrounding the collision bounds
|
|
//-----------------------------------------------------------------------------
|
|
inline void CCollisionProperty::WorldSpaceAABB( Vector *pWorldMins, Vector *pWorldMaxs ) const
|
|
{
|
|
CollisionAABBToWorldAABB( m_vecMins, m_vecMaxs, pWorldMins, pWorldMaxs );
|
|
}
|
|
|
|
|
|
// Get the collision space mins directly
|
|
inline const Vector & CCollisionProperty::CollisionSpaceMins( void ) const
|
|
{
|
|
return m_vecMins;
|
|
}
|
|
|
|
// Get the collision space maxs directly
|
|
inline const Vector & CCollisionProperty::CollisionSpaceMaxs( void ) const
|
|
{
|
|
return m_vecMaxs;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Does a rotation make us need to recompute the surrounding box?
|
|
//-----------------------------------------------------------------------------
|
|
inline bool CCollisionProperty::DoesRotationInvalidateSurroundingBox( ) const
|
|
{
|
|
if ( IsSolidFlagSet(FSOLID_ROOT_PARENT_ALIGNED) )
|
|
return true;
|
|
|
|
switch ( m_nSurroundType )
|
|
{
|
|
case USE_COLLISION_BOUNDS_NEVER_VPHYSICS:
|
|
case USE_OBB_COLLISION_BOUNDS:
|
|
case USE_BEST_COLLISION_BOUNDS:
|
|
return IsBoundsDefinedInEntitySpace();
|
|
|
|
// In the case of game code, we don't really know, so we have to assume it does
|
|
case USE_HITBOXES:
|
|
case USE_GAME_CODE:
|
|
return true;
|
|
|
|
case USE_ROTATION_EXPANDED_BOUNDS:
|
|
case USE_SPECIFIED_BOUNDS:
|
|
return false;
|
|
|
|
default:
|
|
Assert(0);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
|
|
#endif // COLLISIONPROPERTY_H
|