Instance of particle graph layer in emitter. More...

#include <Urho3D/Particles/ParticleGraphLayerInstance.h>

Public Member Functions
	ParticleGraphLayerInstance ()
	Construct.

	~ParticleGraphLayerInstance ()
	Destruct.

void	Apply (const SharedPtr< ParticleGraphLayer > &layer)
	Apply layer settings to the layer instance.

unsigned	GetNumActiveParticles () const
	Return number of active particles.

void	RemoveAllParticles ()
	Remove all current particles.

bool	EmitNewParticles (float numParticles=1.0f)
	Create a new particles. Return true if there was room.

void	Update (float timeStep, bool emitting)
	Run update step.

unsigned	GetNumAttributes () const
	Get number of attributes.

template<typename T >
SparseSpan< T >	GetAttributeValues (unsigned attributeIndex)
	Get attribute values.

template<typename ValueType >
SparseSpan< ValueType >	GetSparse (unsigned attributeIndex, const ea::span< unsigned > &indices)

template<typename ValueType >
SparseSpan< ValueType >	GetScalar (unsigned pinIndex)

template<typename ValueType >
SparseSpan< ValueType >	GetSpan (unsigned pinIndex)

ParticleGraphEmitter *	GetEmitter () const
	Get emitter.

void	MarkForDeletion (unsigned particleIndex)
	Mark a particle for deletion.

unsigned	GetUniformIndex (const StringHash &string_hash, VariantType variant)
	Get uniform index. Creates new uniform slot on demand.

Variant &	GetUniform (unsigned index)
	Get uniform variant by index.

void	Reset ()

void	UpdateDrawables ()
	Update all drawable attributes. Executed by ParticleGraphEmitter.

ParticleGraphLayer *	GetLayer () const
	Get effect layer.

Protected Member Functions
void	OnSceneSet (Scene *scene)
	Handle scene change in instance.

void	SetEmitter (ParticleGraphEmitter *emitter)
	Set emitter reference.

UpdateContext	MakeUpdateContext (float timeStep)
	Initialize update context.

void	RunGraph (ea::span< ParticleGraphNodeInstance * > &nodes, UpdateContext &updateContext)
	Run graph.

void	DestroyParticles ()
	Destroy particles.

ea::span< uint8_t >	InitNodeInstances (ea::span< uint8_t > nodeInstanceBuffer, ea::span< ParticleGraphNodeInstance * > &nodeInstances, const ParticleGraph &particle_graph)

Private Attributes
float	emitCounterReminder_ {}
	Emit counter reminder. When reminder value get over 1 the layer emits particle.

ea::vector< uint8_t >	attributes_
	Memory used to store all layer related arrays: nodes, indices, attributes.

ea::vector< uint8_t >	temp_

ea::span< ParticleGraphNodeInstance * >	emitNodeInstances_
	Node instances for emit graph.

ea::span< ParticleGraphNodeInstance * >	initNodeInstances_
	Node instances for initialization graph.

ea::span< ParticleGraphNodeInstance * >	updateNodeInstances_
	Node instances for update graph.

ea::span< unsigned >	indices_
	All indices of the particle system.

ea::span< unsigned >	scalarIndices_
	All indices set to 0.

ea::span< unsigned >	naturalIndices_
	All indices going in natural order (0, 1, ...).

ea::span< unsigned >	destructionQueue_
	Particle indices to be removed.

unsigned	destructionQueueSize_
	Number of particles to destroy at end of the frame.

unsigned	activeParticles_
	Number of active particles.

SharedPtr< ParticleGraphLayer >	layer_
	Reference to layer.

ParticleGraphEmitter *	emitter_ {}
	Emitter that owns the layer instance.

float	time_ {}
	Time since emitter start.

Detailed Description

Instance of particle graph layer in emitter.

Member Function Documentation

void Urho3D::ParticleGraphLayerInstance::Reset ( )

Reset the particle emitter layer completely. Removes current particles, sets emitting state on, and resets the emission timer.

ea::vector<uint8_t> Urho3D::ParticleGraphLayerInstance::temp_

private

Temp memory needed for graph calculation. TODO: Should be replaced with memory pool as it could be shared between multiple emitter instances.

The documentation for this class was generated from the following files: