@physion/app / Exports / LaserNode

Class: LaserNode

Base class for all nodes in Physion.

Hierarchy

• Node

  ↳ LaserNode

Constructors

constructor

• new LaserNode(): LaserNode

Returns

LaserNode

Overrides

Node.constructor

Properties

userData

• userData: Record<string, unknown>

Inherited from

Node.userData

---

EVT_CHILD_ADDED

▪ Static Readonly EVT_CHILD_ADDED: "childAdded"

The name of the event that is emitted whenever a child is added to this node.

The argument supplied is the child that was just added to this node.

Inherited from

Node.EVT_CHILD_ADDED

---

EVT_CHILD_REMOVED

▪ Static Readonly EVT_CHILD_REMOVED: "childRemoved"

The name of the event that is emitted whenever a child is removed from this node.

The argument supplied is the child that was just removed from this node.

Inherited from

Node.EVT_CHILD_REMOVED

---

EVT_CHILD_REORDERED

▪ Static Readonly EVT_CHILD_REORDERED: "childReordered"

The name of the event that is emitted whenever a child of this node is reordered.

The arguments supplied are: (1) The child that was just reordered (2) the old index of the child and (3) the new index of the child.

Inherited from

Node.EVT_CHILD_REORDERED

---

EVT_NAME_CHANGED

▪ Static Readonly EVT_NAME_CHANGED: "nameChanged"

The name of the event that is emitted whenever the name of this object changes.

The argument suplied is the new CoreObject.name of the object.

Inherited from

Node.EVT_NAME_CHANGED

---

EVT_PROPERTY_CHANGED

▪ Static Readonly EVT_PROPERTY_CHANGED: "propertyChanged"

The name of the event that is emitted whenever a property of this object changes.

The arguments supplied are: (1) The name of the property that has changed and (2) the new value of that property.

Inherited from

Node.EVT_PROPERTY_CHANGED

---

EVT_TRANSFORM_CHANGED

▪ Static Readonly EVT_TRANSFORM_CHANGED: "transformChanged"

The name of the event that is emitted whenever the x, y or angle properties of this Node are changed.

Note that this event is not emitted when x, y or angle properties are changed as a result of an update().

Inherited from

Node.EVT_TRANSFORM_CHANGED

---

ID_LENGTH

▪ Static Readonly ID_LENGTH: 12

Inherited from

Node.ID_LENGTH

---

MAX_NAME_LENGTH

▪ Static Readonly MAX_NAME_LENGTH: 128

Inherited from

Node.MAX_NAME_LENGTH

Accessors

alpha

• get alpha(): number

Node's alpha

This value is between 0 (transparent) and 1.0 (opaque). This property can be considered as the "master" opacity of the node. Defaults to 1 (fully opaque)

Returns

number

Overrides

Node.alpha

• set alpha(v): void

Parameters

Name	Type
v	number

Returns

void

Overrides

Node.alpha

---

angle

• get angle(): number

Node's angle (in degrees)

Returns

number

Inherited from

Node.angle

• set angle(v): void

Parameters

Name	Type
v	number

Returns

void

Inherited from

Node.angle

---

childCount

• get childCount(): number

Returns the number of children this node contains.

Returns

number

Inherited from

Node.childCount

---

children

• get children(): Node[]

Returns the children of this node.

Returns

Node[]

Inherited from

Node.children

---

color

• get color(): number

Returns

number

• set color(v): void

Parameters

Name	Type
v	number

Returns

void

---

coreIntensity

• get coreIntensity(): number

Returns

number

• set coreIntensity(v): void

Parameters

Name	Type
v	number

Returns

void

---

coreSize

• get coreSize(): number

Returns

number

• set coreSize(v): void

Parameters

Name	Type
v	number

Returns

void

---

drawBody

• get drawBody(): boolean

Returns

boolean

• set drawBody(v): void

Parameters

Name	Type
v	boolean

Returns

void

---

fadeWithDistance

• get fadeWithDistance(): boolean

Returns

boolean

• set fadeWithDistance(v): void

Parameters

Name	Type
v	boolean

Returns

void

---

flags

• get flags(): CoreObjectFlags

Returns

CoreObjectFlags

Inherited from

Node.flags

---

id

• get id(): string

Object's (unique) id

Note that the id of the object cannot be set (it is automatically assigned upon construction)

Returns

string

Inherited from

Node.id

---

maxBounces

• get maxBounces(): number

Returns

number

• set maxBounces(v): void

Parameters

Name	Type
v	number

Returns

void

---

maxDistance

• get maxDistance(): number

Returns

number

• set maxDistance(v): void

Parameters

Name	Type
v	number

Returns

void

---

metaObject

• get metaObject(): MetaObject

Returns the MetaObject that describes this class

Returns

MetaObject

Overrides

Node.metaObject

---

name

• get name(): string

The object's name

The object's name is a free text value which defaults to an empty string.

Note that when the name of the object changes, the CoreObject.EVT_NAME_CHANGED signal will be emitted.

Returns

string

Inherited from

Node.name

• set name(v): void

Parameters

Name	Type
v	string

Returns

void

Inherited from

Node.name

---

parent

• get parent(): undefined | Node

Returns the parent of this node (or undefined if this node has no parent).

Returns

undefined | Node

Inherited from

Node.parent

---

powered

• get powered(): boolean

Returns

boolean

• set powered(v): void

Parameters

Name	Type
v	boolean

Returns

void

---

queryParticleSystem

• get queryParticleSystem(): boolean

Returns

boolean

• set queryParticleSystem(v): void

Parameters

Name	Type
v	boolean

Returns

void

---

scripts

• get scripts(): IScript[]

Returns

IScript[]

Inherited from

Node.scripts

• set scripts(v): void

Parameters

Name	Type
v	IScript[]

Returns

void

Inherited from

Node.scripts

---

size

• get size(): number

Returns

number

• set size(v): void

Parameters

Name	Type
v	number

Returns

void

---

ttl

• get ttl(): number

Node's time-to-live, in milliseconds.

A value of -1 (the default) means this node has no ttl and will never be automatically removed. Any other value counts down while the simulation is running; once it reaches 0 the node (and any nodes that depend on it) is removed from the Scene.

Has no effect on the Scene node itself, which never counts down or gets removed via ttl.

Returns

number

Inherited from

Node.ttl

• set ttl(v): void

Parameters

Name	Type
v	number

Returns

void

Inherited from

Node.ttl

---

visualFilters

• get visualFilters(): IVisualFilters

The visual effects drawn over this node and its children, keyed by types.VisualFilterKey. See VisualFiltersMixin.

Returns

IVisualFilters

Inherited from

Node.visualFilters

• set visualFilters(v): void

Parameters

Name	Type
v	IVisualFilters

Returns

void

Inherited from

Node.visualFilters

---

x

• get x(): number

Node's x position (in meters)

Returns

number

Inherited from

Node.x

• set x(v): void

Parameters

Name	Type
v	number

Returns

void

Inherited from

Node.x

---

y

• get y(): number

Node's y position (in meters)

Returns

number

Inherited from

Node.y

• set y(v): void

Parameters

Name	Type
v	number

Returns

void

Inherited from

Node.y

Methods

addChild

▸ addChild(child): boolean

Adds the given child to this node.

If the given child is already contained in this node or it already has a Node.parent then this method will fail (false will be returned).

Otherwise the child will be added to this node and the Node.EVT_CHILD_ADDED signal will be emitted.

Parameters

Name	Type	Description
child	Node	The child to be added to this node.

Returns

boolean

True on success otherwise false.

Inherited from

Node.addChild

---

addChildren

▸ addChildren(children): void

Convenience method for adding multiple children to this node.

Parameters

Name	Type
children	Node[]

Returns

void

Inherited from

Node.addChildren

---

addScript

▸ addScript(assetId, params?): undefined | IScript

Adds a new script to this node.

Convenience wrapper around the scripts property, which validates the entry and rejects it if malformed. An entry whose asset is not available yet stays inert until it is.

Parameters

Name	Type	Description
assetId	string	The id of the script's TextAsset.
params	ScriptParams	Initial values for the script's editable properties.

Returns

undefined | IScript

A copy of the added script entry, or undefined if it was rejected. Use its id with getNodeScript() or removeScript().

Inherited from

Node.addScript

---

callMethodForAllNodeScripts

▸ callMethodForAllNodeScripts<T>(methodName, ...args): void

Type parameters

Name	Type
T	extends NodeScriptMethodName

Parameters

Name	Type
methodName	T
...args	Parameters<NonNullable<INodeScriptValue[T]>>

Returns

void

Inherited from

Node.callMethodForAllNodeScripts

---

canAddChild

▸ canAddChild(child): boolean

Returns true if the given child can be added to this node

Parameters

Name	Type
child	Node

Returns

boolean

Inherited from

Node.canAddChild

---

canRemoveChild

▸ canRemoveChild(child): boolean

Returns true if the given child can be removed from this node

Parameters

Name	Type
child	Node

Returns

boolean

Inherited from

Node.canRemoveChild

---

childIndex

▸ childIndex(child): number

Returns the index of the given child (or -1 if child is not contained in thie node).

Parameters

Name	Type
child	Node

Returns

number

Inherited from

Node.childIndex

---

clone

▸ clone(): LaserNode

Creates and returns a clone of this node.

The clone returned will have the same property values as this node except from its CoreObject.id.

Returns

LaserNode

A clone of this node.

Inherited from

Node.clone

---

containsChild

▸ containsChild(child): boolean

Returns true if this node contains the given child

Parameters

Name	Type
child	Node

Returns

boolean

Inherited from

Node.containsChild

---

destroy

▸ destroy(): void

Returns

void

Overrides

Node.destroy

---

findAncestorByClassName

▸ findAncestorByClassName(className): undefined | Node

Parameters

Name	Type
className	string

Returns

undefined | Node

Inherited from

Node.findAncestorByClassName

---

findChildById

▸ findChildById(id): undefined | Node

Finds and returns the child with the given id.

Parameters

Name	Type	Description
id	string	The CoreObject.id of the child to search for.

Returns

undefined | Node

The child with the given id or undefined if no such child exists.

Inherited from

Node.findChildById

---

findChildByName

▸ findChildByName(name): undefined | Node

Finds and returns the first child node with the given name.

Parameters

Name	Type	Description
name	string	The CoreObject.name of the child to search for.

Returns

undefined | Node

The first child with the given name or undefined if no such child exists.

Inherited from

Node.findChildByName

---

findDescendantById

▸ findDescendantById(id): undefined | Node

Finds and returns the descendant with the given id.

Parameters

Name	Type	Description
id	string	The CoreObject.id of the descendant to search for.

Returns

undefined | Node

The descendant with the given id or undefined if no such descendant exists.

Inherited from

Node.findDescendantById

---

findSceneAssetById

▸ findSceneAssetById(id): undefined | Asset

Finds and returns the asset specified by the given id. Note that the node needs to be parented to a Scene for this method to work.

Parameters

Name	Type	Description
id	string	The id of the asset to search for.

Returns

undefined | Asset

The matched Asset of undefined if no such asset exists in the scene.

Inherited from

Node.findSceneAssetById

---

findSceneAssetByName

▸ findSceneAssetByName(name): undefined | Asset

Finds and returns the asset specified by the given name. Note that the node needs to be parented to a Scene for this method to work. Asset names are not unique, so if more than one asset shares the given name the first match is returned.

Parameters

Name	Type	Description
name	string	The name of the asset to search for.

Returns

undefined | Asset

The matched Asset or undefined if no such asset exists in the scene.

Inherited from

Node.findSceneAssetByName

---

findSceneNode

▸ findSceneNode(): undefined | Node

Uses the Node.findAncestorByClassName to find the Scene that this node is added to. If this node has not yet been added to a scene then this method will return undefined.

Returns

undefined | Node

Inherited from

Node.findSceneNode

---

fromScreen

▸ fromScreen(position, from?, skipUpdate?): IPointData

Parameters

Name	Type
position	IPoint
from?	Node
skipUpdate?	boolean

Returns

IPointData

Inherited from

Node.fromScreen

---

getAncestors

▸ getAncestors(): Node[]

Returns the ancestors of this node

Returns

Node[]

Inherited from

Node.getAncestors

---

getAssetIds

▸ getAssetIds(): string[]

Returns the ids of the assets that are used by this Node.

Returns

string[]

The ids of the assets that are used by this Node.

Inherited from

Node.getAssetIds

---

getBoundingRect

▸ getBoundingRect(): Rectangle

Returns the bounding rectangle of this node in local coordinates.

The default implementation returns the local bounds of the underlying PIXI container but subclasses can re-implement this method to return their custom bounding rectangle.

Returns

Rectangle

Overrides

Node.getBoundingRect

---

getDependencies

▸ getDependencies(): Node[]

Returns the nodes this node depends on. If this node is not added to a [[Scene]] then an empty array will be returned.

Returns

Node[]

Array of nodes this node depends on.

Inherited from

Node.getDependencies

---

getDependencyIds

▸ getDependencyIds(): string[]

Returns the IDs of all nodes this node depends on. Subclasses that have dependencies (e.g. JointNode) should re-implement this method and return the IDs of the nodes that they depend on. The default implementation returns an empty array.

Returns

string[]

Array of node IDs this node depends on.

Inherited from

Node.getDependencyIds

---

getDependents

▸ getDependents(): Node[]

Returns all Nodes that depend on this node. If this node is not added to a [[Scene]] then an empty array will be returned.

Returns

Node[]

Array of Nodes that have this node as a dependency

Inherited from

Node.getDependents

---

getDescendants

▸ getDescendants(reversed?): Node[]

Returns the descendants of this node.

A descendant is node that has this node as an ancestor. Consider for example the following tree of nodes:

• NodeA
  • NodeB
    • NodeD
    • NodeE
  • NodeC

If we ask for the descendants of NodeA we'll get back: [NodeB, NodeD, NodeE, NodeC]

If reversed is set to true then this method will return the reversed descendants. For the example above, that would be: [NodeC, NodeE, NodeD, NodeB, NodeA]. Note that the first item of the reversed descendants has the highest z-index.

Parameters

Name	Type	Default value
reversed	boolean	false

Returns

Node[]

A list of this node's descendants

Inherited from

Node.getDescendants

---

getDescendantsMap

▸ getDescendantsMap(): Map<string, Node>

Returns a map of all descendants keyed by their IDs.

This provides efficient lookup of any descendant node by its ID without having to traverse the tree multiple times.

Returns

Map<string, Node>

A Map where keys are node IDs and values are the corresponding Node objects

Inherited from

Node.getDescendantsMap

---

getExtras

▸ getExtras(): any

Returns any extra data that this object needs to save during serialization.

In some cases an object might need to save some extra data without necessarily this extra data being part of its state (e.g. the AssetsLibrary of a Scene). In these cases subclasses can re-implement this method and return the data required.

The default implementation returns undefined meaning that no extra data needs to be saved during serialization.

Returns

any

Inherited from

Node.getExtras

---

getFilteredDescendants

▸ getFilteredDescendants<T>(cls): T[]

Returns the descendants of this node that are instances of the class cls

Type parameters

Name	Type
T	extends Node

Parameters

Name	Type
cls	Constructor<T>

Returns

T[]

Inherited from

Node.getFilteredDescendants

---

getFilteredDescendantsByClassName

▸ getFilteredDescendantsByClassName(className): Node[]

Returns the descendants of this node that are instances of the class className

Parameters

Name	Type
className	string

Returns

Node[]

Inherited from

Node.getFilteredDescendantsByClassName

---

getLocalTransform

▸ getLocalTransform(): Matrix

Returns a copy of this node's (local) transformation matrix.

Returns

Matrix

Inherited from

Node.getLocalTransform

---

getNodeScript

▸ getNodeScript(id): undefined | NodeScript

Returns the NodeScript that corresponds to the given id.

Parameters

Name	Type
id	string

Returns

undefined | NodeScript

Inherited from

Node.getNodeScript

---

getNodeScriptByClassName

▸ getNodeScriptByClassName(className): undefined | NodeScript

Parameters

Name	Type
className	string

Returns

undefined | NodeScript

Deprecated

Use getNodeScriptsByClassName instead. Kept for backward compatibility with old scenes.

Inherited from

Node.getNodeScriptByClassName

---

getNodeScripts

▸ getNodeScripts(): NodeScript[]

Returns all NodeScripts of this Node, in the order of the script entries they belong to.

An entry that has no NodeScript is left out, so the result can be shorter than scripts.

Returns

NodeScript[]

Inherited from

Node.getNodeScripts

---

getNodeScriptsByClassName

▸ getNodeScriptsByClassName(className): NodeScript[]

Returns all NodeScripts whose class name matches the given className.

Parameters

Name	Type
className	string

Returns

NodeScript[]

Inherited from

Node.getNodeScriptsByClassName

---

getPosition

▸ getPosition(): IPoint

Convenience method which returns the node's position as a x,y object

Returns

IPoint

Inherited from

Node.getPosition

---

getSceneAngle

▸ getSceneAngle(): number

Returns the Node's angle in Scene coordinates.

Returns

number

Inherited from

Node.getSceneAngle

---

getSceneBoundingRect

▸ getSceneBoundingRect(): Rectangle

Returns the bounding rect of this node in scene coordinates.

Returns

Rectangle

Inherited from

Node.getSceneBoundingRect

---

getScenePosition

▸ getScenePosition(): IPoint

Returns the Node's position in Scene coordinates.

Returns

IPoint

Inherited from

Node.getScenePosition

---

getScenePositionAndAngle

▸ getScenePositionAndAngle(): Object

Returns the Node's position and angle in Scene coordinates (optimized).

Returns

Object

Name	Type
angle	number
position	IPoint

Inherited from

Node.getScenePositionAndAngle

---

getSceneTransform

▸ getSceneTransform(): Matrix

Returns a copy of this node's scene transformation matrix. Use this matrix to map coordinates from this node's local coordinate system to the scene's coordinate system. To map coordinates from the scene, you must first invert the returned matrix.

Unlike getLocalTransform(), which returns only the local transformation, this function includes the node's (and any parents') position, and all the transfomation properties.

Returns

Matrix

Inherited from

Node.getSceneTransform

---

getShape

▸ getShape(): Polygon

Returns the shape of this Node in local coordinates.

Note that the returned shape might be empty.

The shape of a Node is used for many things, including boolean operations and selection.

The default implementation calls getBoundingRect() to return a simple rectangular shape, but subclasses can reimplement this function to return a more accurate shape for non-rectangular items.

Returns

Polygon

Inherited from

Node.getShape

---

getSnapPoints

▸ getSnapPoints(snapMode): ISnapPoint[]

Snap Points

Parameters

Name	Type
snapMode	number

Returns

ISnapPoint[]

Inherited from

Node.getSnapPoints

---

getState

▸ getState(minified?): any

Returns this object's state

The object's state is an object containing key/value pairs corresponding to this object's properties. For example:

{
	id: "Ssba4ch5ruok",
	name: "Circle",
	radius: 2,
   // ...
}

To avoid including properties that are currently in their default value you can set minified = true when calling getState.

Note that read-only properties are not part of the object's state (with the exception of the id)

Parameters

Name	Type	Default value	Description
minified	boolean	false	Whether to return a minified state or not

Returns

any

Inherited from

Node.getState

---

getTransformedShape

▸ getTransformedShape(): Polygon

Returns the shape of this Node in scene coordinates.

Note that the returned shape might be empty.

Returns

Polygon

Inherited from

Node.getTransformedShape

---

handleLaserHit

▸ handleLaserHit(node, segment): void

Parameters

Name	Type
node	BodyNode | ParticleGroupNode
segment	IRaycastSegment

Returns

void

---

hasDependencies

▸ hasDependencies(): boolean

Returns true if this node has dependencies, otherwise returns false.

Returns

boolean

Inherited from

Node.hasDependencies

---

index

▸ index(): number

Returns the index of this Node relatively to its parent. If this Node has no parent then -1 is returned.

Returns

number

Inherited from

Node.index

---

initNode

▸ initNode(x?, y?, angle?): void

Convenience method for setting node's Node.x, Node.y and Node.angle

Parameters

Name	Type	Default value
x	number	0
y	number	0
angle	number	0

Returns

void

Inherited from

Node.initNode

---

insertChild

▸ insertChild(child, index): boolean

Parameters

Name	Type
child	Node
index	number

Returns

boolean

Inherited from

Node.insertChild

---

insertChildren

▸ insertChildren(children, index): void

Convenience method for inserting multiple children into this node at the specified index.

Parameters

Name	Type
children	Node[]
index	number

Returns

void

Inherited from

Node.insertChildren

---

isDestroyed

▸ isDestroyed(): boolean

Returns true if this node has been destroyed via destroy(). A destroyed Node should not be used.

Returns

boolean

Inherited from

Node.isDestroyed

---

isSelected

▸ isSelected(): boolean

Returns true if this node is currently selected.

Returns

boolean

Inherited from

Node.isSelected

---

move

▸ move(d): void

Moves this node by the given d.x, d.y

Parameters

Name	Type
d	IPoint

Returns

void

Inherited from

Node.move

---

removeAllChildren

▸ removeAllChildren(): void

Convenience method which removes all children of this node

Returns

void

Inherited from

Node.removeAllChildren

---

removeChild

▸ removeChild(child): boolean

Parameters

Name	Type
child	Node

Returns

boolean

Inherited from

Node.removeChild

---

removeChildren

▸ removeChildren(children): void

Convenience method for removing multiple children from this node.

Parameters

Name	Type
children	Node[]

Returns

void

Inherited from

Node.removeChildren

---

removeScript

▸ removeScript(id): boolean

Removes a script from this node.

Convenience wrapper around the scripts property: it drops the matching entry and reassigns the array.

Parameters

Name	Type	Description
id	string	The id of the script entry to remove.

Returns

boolean

true if a script was removed, false if this node has no such script.

Inherited from

Node.removeScript

---

reorderChild

▸ reorderChild(child, newIndex): boolean

Moves a child node to a different position (order) among the other children If the operation is successul then the EVT_CHILD_REORDERED signal will be emitted

Parameters

Name	Type	Description
child	Node	The child node to be moved
newIndex	number	The new index where the child node will be moved

Returns

boolean

true on success otherwise false

Inherited from

Node.reorderChild

---

setExtras

▸ setExtras(_x): boolean

Sets any extra data that this object needs during de-serialization.

Returns true on success, otherwise returns false.

The default implementation does nothing and returns true.

Parameters

Name	Type
_x	any

Returns

boolean

Inherited from

Node.setExtras

---

setFlag

▸ setFlag(flag, on?): void

Parameters

Name	Type	Default value
flag	CoreObjectFlags	undefined
on	boolean	true

Returns

void

Inherited from

Node.setFlag

---

setPosition

▸ setPosition(v): void

Convenience method for setting the node's position to the given x,y

Parameters

Name	Type
v	IPoint

Returns

void

Inherited from

Node.setPosition

---

setScenePosition

▸ setScenePosition(v): void

Sets the Node's scene position.

Parameters

Name	Type
v	IPoint

Returns

void

Inherited from

Node.setScenePosition

---

setState

▸ setState(state, updateId?): boolean

Sets the object's state

Parameters

Name	Type	Default value	Description
state	any	undefined	The state to be set
updateId	boolean	true	Whether to also update the id property

Returns

boolean

True on success otherwise false

Inherited from

Node.setState

---

testFlag

▸ testFlag(flag): boolean

Parameters

Name	Type
flag	CoreObjectFlags

Returns

boolean

Inherited from

Node.testFlag

---

toGlobal

▸ toGlobal(position): Point

Parameters

Name	Type
position	IPoint

Returns

Point

Inherited from

Node.toGlobal

---

toLocal

▸ toLocal(position): Point

Parameters

Name	Type
position	IPoint

Returns

Point

Inherited from

Node.toLocal

---

toScreen

▸ toScreen(position, skipUpdate?): IPointData

Parameters

Name	Type
position	IPoint
skipUpdate?	boolean

Returns

IPointData

Inherited from

Node.toScreen

---

update

▸ update(delta): void

Updates this node.

The default update will do the following:

• It will call the update method for all NodeScripts attached to this node
• Advance the visual filters that animate, see VisualFiltersMixin.update
• Call update for each child of this node.

Children are iterated over a shallow copy of _children, not the live array, since a NodeScript's update() may insert/remove siblings on this node (e.g. Breakable spawning fragments); iterating the live array would skip or double-visit siblings shifted by those mutations.

Parameters

Name	Type	Description
delta	number	The fixed simulation step, in milliseconds

Returns

void

Overrides

Node.update