2017-04-17 06:17:10 -06:00

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/*! \file IPFOperator.h
\brief Operator-generic interface IPFOperator
This is a part of every PF Operator
*/
/**********************************************************************
*<
CREATED BY: Oleg Bayborodin
HISTORY: created 10-12-01
*> Copyright (c) 2001, All Rights Reserved.
**********************************************************************/
#ifndef _IPFOPERATOR_H_
#define _IPFOPERATOR_H_
#include "Max.h"
#include "PFExport.h"
#include "IPFIntegrator.h"
PFExport Object* GetPFObject(Object* obj);
// interface ID
#define PFOPERATOR_INTERFACE Interface_ID(0x74f93d01, 0x1eb34500)
#define GetPFOperatorInterface(obj) ((IPFOperator*)((GetPFObject(obj))->GetInterface(PFOPERATOR_INTERFACE)))
class IPFOperator : public FPMixinInterface
{
public:
// function IDs
enum { kProceed
};
// Function Map for Function Publish System
//***********************************
BEGIN_FUNCTION_MAP
FN_7(kProceed, TYPE_bool, Proceed, TYPE_IOBJECT, TYPE_TIMEVALUE, TYPE_TIMEVALUE_BR, TYPE_OBJECT, TYPE_INODE, TYPE_INODE, TYPE_INTERFACE);
END_FUNCTION_MAP
/** @defgroup IPFOperator IPFOperator.h
* @{
*/
/*! \fn Proceed(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd, Object* pSystem, INode* pNode, INode* actioNode, IPFIntegrator* integrator) = 0;
* \brief Returns true if the operation has been proceeded successfully.
methods' signatures are presented in two forms: one is compact, and the other one
is for function-publishing where PreciseTimeValue is presented as a pair (int,float).
\param pCont: particleContainer timeStart: the time for particle to start from the simulation. Each particle
may have its own current valid time greater than timeStart. In this
case the operator should consider the current particle time and
timeEnd parameter. Some operators (like Birth) may not consider
current particle time since it works with timeStart and timeEnd
parameters only.
\param timeEnd: the time for particles to come to; each particle may have its
own current valid time; the parameter sets the time for all
particles to synchronize to.
If current particle time is greater than timeEnd it means that the
particle doesn't require processing at all; the particle has been already
updated beyond the interval ]timeStart, timeEnd] of the current operator.
Sometimes the operator may not be able to proceed all the
particles to the given timeEnd. In this case the operator proceeds
the particles as far as possible and set the parameter to the
time achieved. All the following operators will be given the new
timeEnd value as a time value for particles to come to,
and the particle system will run another round of operator stack
modification in the attempt to proceed all the particles to the
initially set time.
\param pSystem: the particle system that generates the particle stream;
the same operator may get calls from different particle systems; if the
result varies according to the particle system that generates
particles, then this parameter is useful.
\param pNode:INode of the particle system that generates the particles.
\param actionNode: INode of the operator (if any; can be NULL)
\param integrator: an operator to proceed particles according to "inertia" rules.
The operator updates time, speed, position, spin, orientation channels
on the basis of time, acceleration, speed, angular acceleration and
spin channels. Each particle system has a default inertia operator.
When an operator want to update current time for particles, it
uses the "inertia" operator. An Action in the ActionList stack my "switch"
the suggested "inertia" operator by its own if the Action support
the "inertial" operator interface. The particle system recognizes
such an Action as a holder of "inertia" interface, and use it
for "inertia" purposes later on.
If the parameter is NULL then the particle system doesn't allow
the operator to advance particles in the time channel.
*/
virtual bool Proceed(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd, Object* pSystem, INode* pNode, INode* actioNode, IPFIntegrator* integrator) = 0;
/*! \fn PFExport bool Proceed(IObject* pCont, TimeValue timeStart, TimeValue& timeEnd, Object* pSystem, INode* pNode, INode* actionNode, FPInterface* integrator);
* \brief "function publishing" alternative for the method above
*/
PFExport bool Proceed(IObject* pCont, TimeValue timeStart, TimeValue& timeEnd, Object* pSystem, INode* pNode, INode* actionNode, FPInterface* integrator);
/*! \fn virtual bool HasPreProceed(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { return false; }
* \brief Three methods apply the Proceed method as a pre-procedure before the
regular proceed for all operators starts. It is not recommended to modify particle container.
The call is mostly used to give an operator opportunity to snapshot the state of particle container
before any operator modifies it.
The Proceed method is called in between PretProceedBegin and PreProceedEnd methods if
HasPreProceed method returns "true".
Those methods are not supported in MaxScript intentionally.
*/
virtual bool HasPreProceed(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { return false; }
/*! \fn virtual void PreProceedBegin(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { ; }
* \brief See virtual bool HasPreProceed(}
*/
virtual void PreProceedBegin(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { ; }
/*! \fn virtual void PreProceedEnd(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { ; }
* \brief See virtual bool HasPreProceed(}
*/
virtual void PreProceedEnd(IObject* pCont, PreciseTimeValue timeStart, PreciseTimeValue& timeEnd) { ; }
/*! \fn virtual bool HasPostProceed(IObject* pCont, PreciseTimeValue time) { return false; }
* \brief Three methods apply the Proceed method as a post procedure when the
amount of particles in all particle groups has been established and there won't be any
particle transfers from one particle group to another.
The Proceed method is called again in between PostProceedBegin and PostProceedEnd methods if
HasPostProceed method returns "true".
Since the post proceed methods are applied after everything has established, it is applied to a "time" moment, not
[timeStart, timeEnt] interval. The Proceed method is called with the same value for timeStart and timeEnd.
Those methods are not supported in MaxScript intentionally.
*/
virtual bool HasPostProceed(IObject* pCont, PreciseTimeValue time) { return false; }
/*! \fn virtual void PostProceedBegin(IObject* pCont, PreciseTimeValue time) { ; }
* \brief See virtual bool HasPostProceed(}
*/
virtual void PostProceedBegin(IObject* pCont, PreciseTimeValue time) { ; }
/*! \fn virtual void PostProceedEnd(IObject* pCont, PreciseTimeValue time) { ; }
* \brief See virtual bool HasPostProceed(}
*/
virtual void PostProceedEnd(IObject* pCont, PreciseTimeValue time) { ; }
/*! \fn FPInterfaceDesc* GetDesc() { return GetDescByID(PFOPERATOR_INTERFACE); }
* \brief
*/
FPInterfaceDesc* GetDesc() { return GetDescByID(PFOPERATOR_INTERFACE); }
/*@}*/
};
inline IPFOperator* PFOperatorInterface(Object* obj) {
return ((obj == NULL) ? NULL : GetPFOperatorInterface(obj));
};
inline IPFOperator* PFOperatorInterface(INode* node) {
return ((node == NULL) ? NULL : PFOperatorInterface(node->GetObjectRef()));
};
#endif // _IPFOPERATOR_H_