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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Pulling CCollisionEvent's definition out of physics.cpp so it can be abstracted upon (for the portal mod)
//
//
// $Workfile: $
// $Date: $
// $NoKeywords: $
//=============================================================================//
#ifndef PHYSICS_COLLISIONEVENT_H
#define PHYSICS_COLLISIONEVENT_H
#ifdef _WIN32
#pragma once
#endif
#include "physics.h"
#include "tier1/callqueue.h"
extern CCallQueue g_PostSimulationQueue;
struct damageevent_t
{
CBaseEntity *pEntity;
IPhysicsObject *pInflictorPhysics;
CTakeDamageInfo info;
bool bRestoreVelocity;
};
struct inflictorstate_t
{
Vector savedVelocity;
AngularImpulse savedAngularVelocity;
IPhysicsObject *pInflictorPhysics;
float otherMassMax;
short nextIndex;
short restored;
};
enum
{
COLLSTATE_ENABLED = 0,
COLLSTATE_TRYDISABLE = 1,
COLLSTATE_TRYNPCSOLVER = 2,
COLLSTATE_TRYENTITYSOLVER = 3,
COLLSTATE_DISABLED = 4
};
struct penetrateevent_t
{
EHANDLE hEntity0;
EHANDLE hEntity1;
float startTime;
float timeStamp;
int collisionState;
};
class CCollisionEvent : public IPhysicsCollisionEvent, public IPhysicsCollisionSolver, public IPhysicsObjectEvent
{
public:
CCollisionEvent();
friction_t *FindFriction( CBaseEntity *pObject );
void ShutdownFriction( friction_t &friction );
void FrameUpdate();
void LevelShutdown( void );
// IPhysicsCollisionEvent
void PreCollision( vcollisionevent_t *pEvent );
void PostCollision( vcollisionevent_t *pEvent );
void Friction( IPhysicsObject *pObject, float energy, int surfaceProps, int surfacePropsHit, IPhysicsCollisionData *pData );
void StartTouch( IPhysicsObject *pObject1, IPhysicsObject *pObject2, IPhysicsCollisionData *pTouchData );
void EndTouch( IPhysicsObject *pObject1, IPhysicsObject *pObject2, IPhysicsCollisionData *pTouchData );
void FluidStartTouch( IPhysicsObject *pObject, IPhysicsFluidController *pFluid );
void FluidEndTouch( IPhysicsObject *pObject, IPhysicsFluidController *pFluid );
void PostSimulationFrame();
void ObjectEnterTrigger( IPhysicsObject *pTrigger, IPhysicsObject *pObject );
void ObjectLeaveTrigger( IPhysicsObject *pTrigger, IPhysicsObject *pObject );
bool GetTriggerEvent( triggerevent_t *pEvent, CBaseEntity *pTriggerEntity );
void BufferTouchEvents( bool enable ) { m_bBufferTouchEvents = enable; }
virtual void AddDamageEvent( CBaseEntity *pEntity, const CTakeDamageInfo &info, IPhysicsObject *pInflictorPhysics, bool bRestoreVelocity, const Vector &savedVel, const AngularImpulse &savedAngVel );
void AddImpulseEvent( IPhysicsObject *pPhysicsObject, const Vector &vecCenterForce, const AngularImpulse &vecCenterTorque );
void AddSetVelocityEvent( IPhysicsObject *pPhysicsObject, const Vector &vecVelocity );
void AddRemoveObject(IServerNetworkable *pRemove);
void FlushQueuedOperations();
// IPhysicsCollisionSolver
int ShouldCollide( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1 );
int ShouldSolvePenetration( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1, float dt );
bool ShouldFreezeObject( IPhysicsObject *pObject );
static const char *ModuleName() { return CBaseEntity::IsServer() ? "SERVER" : "CLIENT"; }
int AdditionalCollisionChecksThisTick( int currentChecksDone )
{
//CallbackContext check(this);
if ( currentChecksDone < 1200 )
{
DevMsg(1,"%s: VPhysics Collision detection getting expensive, check for too many convex pieces!\n", ModuleName());
return 1200 - currentChecksDone;
}
DevMsg(1,"%s: VPhysics exceeded collision check limit (%d)!!!\nInterpenetration may result!\n", ModuleName(), currentChecksDone );
return 0;
}
bool ShouldFreezeContacts( IPhysicsObject **pObjectList, int objectCount );
// IPhysicsObjectEvent
// these can be used to optimize out queries on sleeping objects
// Called when an object is woken after sleeping
virtual void ObjectWake( IPhysicsObject *pObject );
// called when an object goes to sleep (no longer simulating)
virtual void ObjectSleep( IPhysicsObject *pObject );
// locals
bool GetInflictorVelocity( IPhysicsObject *pInflictor, Vector &velocity, AngularImpulse &angVelocity );
void GetListOfPenetratingEntities( CBaseEntity *pSearch, CUtlVector<CBaseEntity *> &list );
bool IsInCallback() { return m_inCallback > 0 ? true : false; }
private:
#if _DEBUG
int ShouldCollide_2( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1 );
#endif
void UpdateFrictionSounds();
void UpdateTouchEvents();
void UpdateDamageEvents();
void UpdatePenetrateEvents( void );
void UpdateFluidEvents();
void UpdateRemoveObjects();
void AddTouchEvent( CBaseEntity *pEntity0, CBaseEntity *pEntity1, int touchType, const Vector &point, const Vector &normal );
penetrateevent_t &FindOrAddPenetrateEvent( CBaseEntity *pEntity0, CBaseEntity *pEntity1 );
float DeltaTimeSinceLastFluid( CBaseEntity *pEntity );
void RestoreDamageInflictorState( IPhysicsObject *pInflictor );
void RestoreDamageInflictorState( int inflictorStateIndex, float velocityBlend );
int AddDamageInflictor( IPhysicsObject *pInflictorPhysics, float otherMass, const Vector &savedVel, const AngularImpulse &savedAngVel, bool addList );
int FindDamageInflictor( IPhysicsObject *pInflictorPhysics );
// make the call into the entity system
void DispatchStartTouch( CBaseEntity *pEntity0, CBaseEntity *pEntity1, const Vector &point, const Vector &normal );
void DispatchEndTouch( CBaseEntity *pEntity0, CBaseEntity *pEntity1 );
class CallbackContext
{
public:
CallbackContext(CCollisionEvent *pOuter)
{
m_pOuter = pOuter;
m_pOuter->m_inCallback++;
}
~CallbackContext()
{
m_pOuter->m_inCallback--;
}
private:
CCollisionEvent *m_pOuter;
};
friend class CallbackContext;
friction_t m_current[4];
gamevcollisionevent_t m_gameEvent;
CUtlVector<triggerevent_t> m_triggerEvents;
triggerevent_t m_currentTriggerEvent;
CUtlVector<touchevent_t> m_touchEvents;
CUtlVector<damageevent_t> m_damageEvents;
CUtlVector<inflictorstate_t> m_damageInflictors;
CUtlVector<penetrateevent_t> m_penetrateEvents;
CUtlVector<fluidevent_t> m_fluidEvents;
CUtlVector<IServerNetworkable *> m_removeObjects;
int m_inCallback;
int m_lastTickFrictionError; // counter to control printing of the dev warning for large contact systems
bool m_bBufferTouchEvents;
};
#endif //#ifndef PHYSICS_COLLISIONEVENT_H
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