CUGL 3.0
Cornell University Game Library
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Public Member Functions | Static Public Member Functions | List of all members
cugl::scene3::ParticleNode Class Reference

#include <CUParticleNode3.h>

Inheritance diagram for cugl::scene3::ParticleNode:
cugl::scene3::SceneNode

Public Member Functions

 ParticleNode ()
 
 ~ParticleNode ()
 
virtual void dispose () override
 
bool initWithSystem (const std::shared_ptr< graphics::ParticleSystem > &system)
 
bool initWithData (const AssetManager *manager, const std::shared_ptr< JsonValue > &json) override
 
virtual std::shared_ptr< SceneNodecopy (const std::shared_ptr< SceneNode > &dst) const override
 
std::shared_ptr< SceneNodeclone () const
 
std::shared_ptr< graphics::ParticleSystemgetParticleSystem () const
 
void setParticleSystem (const std::shared_ptr< graphics::ParticleSystem > &system)
 
std::shared_ptr< graphics::TexturegetTexture () const
 
void setTexture (const std::shared_ptr< graphics::Texture > &value)
 
- Public Member Functions inherited from cugl::scene3::SceneNode
 SceneNode ()
 
 ~SceneNode ()
 
virtual void dispose ()
 
virtual bool init ()
 
virtual bool initWithPosition (const Vec3 pos)
 
bool initWithPosition (float x, float y, float z)
 
virtual bool initWithAnchor (const Vec3 anchor)
 
bool initWithAnchor (float x, float y, float z)
 
virtual bool initWithAnchor (const Vec3 pos, const Vec3 anchor)
 
virtual bool initWithData (const AssetManager *manager, const std::shared_ptr< JsonValue > &json)
 
virtual std::shared_ptr< SceneNodecopy (const std::shared_ptr< SceneNode > &dst) const
 
unsigned int getTag () const
 
void setTag (unsigned int tag)
 
const std::string getName () const
 
void setName (const std::string name)
 
const std::string getClassName () const
 
CUEnum getBatchKey () const
 
void setBatchKey (CUEnum key)
 
virtual std::string toString (bool verbose=false) const
 
 operator std::string () const
 
const Vec3 getPosition () const
 
void setPosition (const Vec3 position)
 
void setPosition (float x, float y, float z)
 
Vec3 getWorldPosition () const
 
void setAnchor (const Vec3 anchor)
 
void setAnchor (float x, float y, float z)
 
const Vec3 getAnchor () const
 
bool isVisible () const
 
void setVisible (bool visible)
 
cugl::Vec3 getScale () const
 
void setScale (float scale)
 
void setScale (const cugl::Vec3 scale)
 
cugl::Quaternion getRotation () const
 
void setRotation (cugl::Quaternion rot)
 
const Mat4getModelMatrix () const
 
const Mat4getNodeToParentTransform () const
 
Mat4 getParentToNodeTransform () const
 
virtual Mat4 getNodeToWorldTransform () const
 
Mat4 getWorldToNodeTransform () const
 
Vec3 screenToNodeCoords (const Vec2 screenPoint) const
 
Vec3 worldToNodeCoords (const Vec3 worldPoint) const
 
Vec2 nodeToScreenCoords (const Vec3 nodePoint) const
 
Vec3 nodeToWorldCoords (const Vec3 nodePoint) const
 
Vec3 parentToNodeCoords (const Vec3 parentPoint) const
 
Vec3 nodeToParentCoords (const Vec3 nodePoint) const
 
size_t getChildCount () const
 
std::shared_ptr< SceneNodegetChild (unsigned int pos)
 
const std::shared_ptr< SceneNode > & getChild (unsigned int pos) const
 
template<typename T >
std::shared_ptr< TgetChild (unsigned int pos) const
 
std::shared_ptr< SceneNodegetChildByTag (unsigned int tag) const
 
template<typename T >
std::shared_ptr< TgetChildByTag (unsigned int tag) const
 
std::shared_ptr< SceneNodegetChildByName (const std::string name) const
 
template<typename T >
std::shared_ptr< TgetChildByName (const std::string name) const
 
std::vector< std::shared_ptr< SceneNode > > getChildren ()
 
const std::vector< std::shared_ptr< SceneNode > > & getChildren () const
 
void addChild (const std::shared_ptr< SceneNode > &child)
 
void addChildWithTag (const std::shared_ptr< SceneNode > &child, unsigned int tag)
 
void addChildWithName (const std::shared_ptr< SceneNode > &child, const std::string name)
 
void swapChild (const std::shared_ptr< SceneNode > &child1, const std::shared_ptr< SceneNode > &child2, bool inherit=false)
 
SceneNodegetParent ()
 
const SceneNodegetParent () const
 
Scene3getScene ()
 
const Scene3getScene () const
 
void removeFromParent ()
 
virtual void removeChild (unsigned int pos)
 
void removeChild (const std::shared_ptr< SceneNode > &child)
 
void removeChildByTag (unsigned int tag)
 
void removeChildByName (const std::string name)
 
virtual void removeAllChildren ()
 

Static Public Member Functions

static std::shared_ptr< ParticleNodeallocWithSystem (const std::shared_ptr< graphics::ParticleSystem > &system)
 
static std::shared_ptr< ParticleNodeallocWithData (const AssetManager *manager, const std::shared_ptr< JsonValue > &json)
 
- Static Public Member Functions inherited from cugl::scene3::SceneNode
static std::shared_ptr< SceneNodealloc ()
 
static std::shared_ptr< SceneNodeallocWithPosition (const Vec3 pos)
 
static std::shared_ptr< SceneNodeallocWithPosition (float x, float y, float z)
 
static std::shared_ptr< SceneNodeallocWithAnchor (const Vec3 anchor)
 
static std::shared_ptr< SceneNodeallocWithAnchor (float x, float y, float z)
 
static std::shared_ptr< SceneNodeallocWithAnchor (const Vec3 pos, const Vec3 anchor)
 
static std::shared_ptr< SceneNodeallocWithData (const AssetManager *manager, const std::shared_ptr< JsonValue > &json)
 

Additional Inherited Members

- Protected Attributes inherited from cugl::scene3::SceneNode
unsigned int _tag
 
std::string _name
 
size_t _hashOfName
 
std::string _classname
 
bool _isVisible
 
cugl::Vec3 _position
 
cugl::Vec3 _anchor
 
cugl::Vec3 _scale
 
cugl::Quaternion _rotate
 
Mat4 _modelmat
 
std::vector< std::shared_ptr< SceneNode > > _children
 
SceneNode_parent
 
Scene3_graph
 
int _childOffset
 
CUEnum _batchkey
 
std::shared_ptr< JsonValue_json
 

Detailed Description

This class represents an particle system in a 3d scene graph.

Particle systems contain the logic for creating particles, as well as the underlying mesh. However, they do not have a position/orientation, or even a texture. That information is factored out so that we can reuse particle systems, as they are fairly heavy weight.

Depending on the choice of texture, systems do support limited animation. However, that animation is manage through the graphics::ParticleInstance objects. It is not managed in this node.

Constructor & Destructor Documentation

◆ ParticleNode()

cugl::scene3::ParticleNode::ParticleNode ( )

Creates an uninitialized node.

You must initialize this model before use.

NEVER USE A CONSTRUCTOR WITH NEW. If you want to allocate a model on the heap, use one of the static constructors instead.

◆ ~ParticleNode()

cugl::scene3::ParticleNode::~ParticleNode ( )
inline

Deletes this node, disposing all resources

Member Function Documentation

◆ allocWithData()

static std::shared_ptr< ParticleNode > cugl::scene3::ParticleNode::allocWithData ( const AssetManager manager,
const std::shared_ptr< JsonValue > &  json 
)
inlinestatic

Returns a newly allocated node with the given JSON specification.

This initializer is designed to receive the "data" object from the JSON passed to Scene3Loader. This JSON format supports all of the attribute values of its parent class. In addition, it supports the following additional attribute:

 "system":   A string with the name of a previously loaded particle system
 "texture":  A string with the name of a previously loaded texture asset

All attributes are optional. However, not specifying the system means that nothing is drawn. In addition, remember that JSON can provide the user-defined update and allocation functions for the particle system. Hence those will need to be defined for any particles to be emitted.

Parameters
managerThe asset manager handling this asset
jsonThe JSON object specifying the node
Returns
a newly allocated node with the given JSON specification.

◆ allocWithSystem()

static std::shared_ptr< ParticleNode > cugl::scene3::ParticleNode::allocWithSystem ( const std::shared_ptr< graphics::ParticleSystem > &  system)
inlinestatic

Returns a newly allocated node with the given particle system

This node will keep a reference to particle system, but it will have its own position, orientation, and texture. Therefore it is possible for multiple nodes to share the same particle system.

Parameters
systemThe particle system
Returns
a newly allocated node with the given particle system

◆ clone()

std::shared_ptr< SceneNode > cugl::scene3::ParticleNode::clone ( ) const

Returns a shallow copy of this node.

The nodes will initially share the same particle system and texture. However, the position and orientation are copied by value.

No children from this model are copied, and no children of dst are modified. In addition, the parents of both node are unchanged. However, all other attributes of this node are copied.

Returns
a shallow copy of this node.

◆ copy()

virtual std::shared_ptr< SceneNode > cugl::scene3::ParticleNode::copy ( const std::shared_ptr< SceneNode > &  dst) const
overridevirtual

Performs a shallow copy of this node into dst.

The nodes will initially share the same particle system and texture. However, the position and orientation are copied by value.

No children from this model are copied, and no children of dst are modified. In addition, the parents of both node are unchanged. However, all other attributes of this node are copied.

Parameters
dstThe node to copy into
Returns
a reference to dst for chaining.

Reimplemented from cugl::scene3::SceneNode.

◆ dispose()

virtual void cugl::scene3::ParticleNode::dispose ( )
overridevirtual

Disposes all of the resources used by this node.

A disposed node can be safely reinitialized. Any children owned by this node will be released. They will be deleted if no other object owns them.

It is unsafe to call this on a node that is still currently inside of a scene graph.

Reimplemented from cugl::scene3::SceneNode.

◆ getParticleSystem()

std::shared_ptr< graphics::ParticleSystem > cugl::scene3::ParticleNode::getParticleSystem ( ) const
inline

Returns the particle system associated with this node.

If this value is nullptr, nothing will be drawn for this node. If this value was initialized via JSON, you must provide this system with a user-defined update and allocation function.

Returns
the particle system associated with this node.

◆ getTexture()

std::shared_ptr< graphics::Texture > cugl::scene3::ParticleNode::getTexture ( ) const
inline

Returns the texture associated with this particle system.

If this value is nullptr, the particles will be rendered as a single color.

Returns
the texture associated with this particle system.

◆ initWithData()

bool cugl::scene3::ParticleNode::initWithData ( const AssetManager manager,
const std::shared_ptr< JsonValue > &  json 
)
overridevirtual

Initializes a node with the given JSON specification.

This initializer is designed to receive the "data" object from the JSON passed to Scene3Loader. This JSON format supports all of the attribute values of its parent class. In addition, it supports the following additional attribute:

 "system":   A string with the name of a previously loaded particle system
 "texture":  A string with the name of a previously loaded texture asset

All attributes are optional. However, not specifying the system means that nothing is drawn. In addition, remember that JSON can provide the user-defined update and allocation functions for the particle system. Hence those will need to be defined for any particles to be emitted.

Parameters
managerThe asset manager handling this asset
jsonThe JSON object specifying the node
Returns
true if initialization was successful.

Reimplemented from cugl::scene3::SceneNode.

◆ initWithSystem()

bool cugl::scene3::ParticleNode::initWithSystem ( const std::shared_ptr< graphics::ParticleSystem > &  system)

Initializes this node with the given particle system

This node will keep a reference to particle system, but it will have its own position, orientation, and texture. Therefore it is possible for multiple nodes to share the same particle system.

Parameters
systemThe particle system
Returns
true if initialization was successful.

◆ setParticleSystem()

void cugl::scene3::ParticleNode::setParticleSystem ( const std::shared_ptr< graphics::ParticleSystem > &  system)
inline

Sets the particle system associated with this node.

If this value is nullptr, nothing will be drawn for this node. If this value was initialized via JSON, you must provide this system with a user-defined update and allocation function.

Parameters
systemThe particle system mesh associated with this node.

◆ setTexture()

void cugl::scene3::ParticleNode::setTexture ( const std::shared_ptr< graphics::Texture > &  value)
inline

Sets the texture associated with this particle system.

If this value is nullptr, the particles will be rendered as a single color.

Parameters
valueThe texture associated with this particle system.

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