IPFAction.h

Module description

Functions
virtual bool	Init (IObject *pCont, Object *pSystem, INode *node, Tab< Object * > &actions, Tab< INode * > &actionNodes)=0
	Returns true if the operation has been proceeded successfully. More...
virtual bool	Release (IObject *pCont)=0
	See Init(). More...
virtual const ParticleChannelMask &	ChannelsUsed (const Interval &time) const =0
	See Init(). More...
PFExport void	ChannelsUsed (const Interval &time, FPValue *channels) const
	"Function publishing" alternative for ChannelsUsed method. More...
virtual const Interval	ActivityInterval () const =0
	Casting the FPValue->ptr parameter to Tab<Interface_ID>* as in PFExport void ChannelsUsed(...); an Action may have a time interval when the Action is active. More...
virtual bool	IsFertile () const
	Birth Action is a special type of actions since it can create particles from scratch. More...
virtual bool	IsNonExecutable () const
	There is a special case of non-executable actions. More...
virtual bool	Has3dIcon () const
	An action may have 3d icon representation in viewport. More...
virtual int	IsColorCoordinated () const
	If an operator/test has a 3D icon the icon can be automatically color matched to the color of the display operator in the same event. More...
virtual bool	SupportRand () const =0
	An Action may carry some chaos/unpredictibility in its processing. More...
virtual int	GetRand ()=0
	For chaos/unpredictibility action, gets rand value. More...
virtual void	SetRand (int seed)=0
	For chaos/unpredictibility action, sets rand value. More...
PFExport int	NewRand ()
	For chaos/unpredictibility action, sets and returns new rand value. More...
static PFExport int	NewRand (IParamBlock2 *pblock, ParamID randomSeedParamID)
	Alternative for PFExport int NewRand(); but not in FnPub interface. More...
virtual bool	IsMaterialHolder () const
	If the Action may potentically change particle material, then return true. More...
virtual Mtl *	GetMaterial ()
	Returns a material for particles. More...
virtual bool	SetMaterial (Mtl *mtl)
	Return true if material was set successfully. More...
virtual bool	SupportScriptWiring () const
	An Action may have parameters controlled by script channels. More...
virtual bool	GetUseScriptWiring () const
	Supports script wiring. More...
virtual void	SetUseScriptWiring (bool useScriptWiring)
	Supports script wiring. More...
virtual bool	IsEmitterTMDependent () const
	An Action may or may not be dependent on the particle system emitter. More...
virtual bool	IsEmitterPropDependent () const
	Checks the props category for dependency. More...
virtual IObject *	GetCurrentState (IObject *pContainer)
	Returns action state (see IPFActionState.h for details). More...
virtual void	SetCurrentState (IObject *actionState, IObject *pContainer)
	Sets the state of the action to the given state. More...
FPInterfaceDesc *	GetDesc ()

Function Documentation

bool Init ( IObject *  pCont, Object *  pSystem, INode *  node, Tab< Object * > &  actions, Tab< INode * > &  actionNodes  )

pure virtual

Returns true if the operation has been proceeded successfully.

The method is called when the ActionList is established the first time, when there is a first particle that enters the ActionList and there is a need to proceed particles. /param pCont: particle container with particle data /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 actions: Tab<Object*> of Actions in the current ActionList. The stack will be used to proceed particles. The stack is mutable: an Action may change the stack (to remove or add some Actions) to fine-tune the order of execution or add some extra actions. The next parameter should sync with the mutation. /param actionNodes: Tab<INode*> of action nodes.

Implemented in PFSimpleAction.

bool Release ( IObject *  pCont )

pure virtual

See Init().

Implemented in PFSimpleAction.

const ParticleChannelMask & ChannelsUsed ( const Interval &  time ) const

pure virtual

See Init().

Implemented in PFSimpleAction.

PFExport void ChannelsUsed	(	const Interval &	time,
		FPValue *	channels
	)		const

"Function publishing" alternative for ChannelsUsed method.

Reserved for future use.

const Interval ActivityInterval ( ) const

pure virtual

Casting the FPValue->ptr parameter to Tab<Interface_ID>* as in PFExport void ChannelsUsed(...); an Action may have a time interval when the Action is active.

Outside this interval the Action does nothing, therefore there is no need to proceed particles outside the activity interval.

Implemented in PFSimpleAction.

bool IsFertile ( ) const

inlinevirtual

Birth Action is a special type of actions since it can create particles from scratch.

All other type of actions proceed existing particles. Only Action that can create absolutely new particles (if number of particles in the container is zero) should override this method returning true.

{ return false; }

bool IsNonExecutable ( ) const

inlinevirtual

There is a special case of non-executable actions.

They are present in the action schematics but don't affect the particle behavior. Example: Comments operator

{ return false; }

bool Has3dIcon ( ) const

inlinevirtual

An action may have 3d icon representation in viewport.

The 3d icon can be used as a reference for some of the action parameters.

{ return false; }

int IsColorCoordinated ( ) const

inlinevirtual

If an operator/test has a 3D icon the icon can be automatically color matched to the color of the display operator in the same event.

For the automatic color match the operator/test should return 1 in this method. If returns 0 then the action gets the default color for operator/test. If returns -1 then the action doesn't need any color coordination from Particle Flow.

{ return -1; }

bool SupportRand ( ) const

pure virtual

An Action may carry some chaos/unpredictibility in its processing.

This method supports chaos randomness.

Implemented in PFSimpleAction.

virtual int GetRand ( )

pure virtual

For chaos/unpredictibility action, gets rand value.

Implemented in PFSimpleAction.

void SetRand ( int  seed )

pure virtual

For chaos/unpredictibility action, sets rand value.

Implemented in PFSimpleAction.

PFExport int NewRand

(

)

For chaos/unpredictibility action, sets and returns new rand value.

PFExport static int NewRand ( IParamBlock2 *  pblock, ParamID  randomSeedParamID  )

static

Alternative for PFExport int NewRand(); but not in FnPub interface.

bool IsMaterialHolder ( ) const

inlinevirtual

If the Action may potentically change particle material, then return true.

{ return false; }

Mtl * GetMaterial ( )

inlinevirtual

Returns a material for particles.

{ return NULL; }

bool SetMaterial ( Mtl *  mtl )

inlinevirtual

Return true if material was set successfully.

{ return false; }

bool SupportScriptWiring ( ) const

inlinevirtual

An Action may have parameters controlled by script channels.

How the script wiring is set up is controlled by a separate rollup with script-wiring pblock. The rollup is visible if "Use Script Wiring" option in the right-click menu is set to ON. The option is visible only for actions that support script wiring.

{ return false; }

bool GetUseScriptWiring ( ) const

inlinevirtual

Supports script wiring.

See SupportScriptWiring().

{ return false; }

void SetUseScriptWiring ( bool  useScriptWiring )

inlinevirtual

Supports script wiring.

See SupportScriptWiring().

{ ; }

bool IsEmitterTMDependent ( ) const

inlinevirtual

An Action may or may not be dependent on the particle system emitter.

When the emitter is invalidated, a particle group has to decide if it needs to invalidate itself. To make the decision, the group checks all the actions if any of them are dependent on the emitter change. There are two categories of dependency: the transformation matrix of the emitter (TM), and object parameters of the emitter (props). This method checks the TM category.

{ return false; }

bool IsEmitterPropDependent ( ) const

inlinevirtual

Checks the props category for dependency.

See IsEmitterTMDependent().

{ return false; }

IObject * GetCurrentState ( IObject *  pContainer )

inlinevirtual

Returns action state (see IPFActionState.h for details).

You have to delete the IObject by DeleteIObject method when the state is no longer needed.

Reimplemented in PFSimpleAction.

{ return NULL; }

void SetCurrentState ( IObject *  actionState, IObject *  pContainer  )

inlinevirtual

Sets the state of the action to the given state.

Reimplemented in PFSimpleAction.

{ ; }

FPInterfaceDesc * GetDesc ( )

inlinevirtual

Remarks

Returns a pointer to the class which contains the interface metadata.

Implements FPInterface.

{ return GetDescByID(PFACTION_INTERFACE); }