Dart Documentationbox2d_htmlDynamicTreeNode

DynamicTreeNode class

This is a node for the DynamicTree.

class DynamicTreeNode {
  AxisAlignedBox box;

  DynamicTreeNode parent;

  DynamicTreeNode next;

  DynamicTreeNode childOne;

  DynamicTreeNode childTwo;

  /**
   * Can contain whatever is useful to the user.
   */
  var userData;

  /** Used for sorting. */
  int key;

  /** Should never be constructed outside the engine. */
  DynamicTreeNode._construct() :
    box = new AxisAlignedBox(),
    parent = null,
    next = null,
    childOne = null,
    childTwo = null { }

  /**
   * Returns true if this node is a leaf.
   */
  bool get isLeaf() => childOne == null;

  String toString() => box.toString();
}

Constructors

new DynamicTreeNode._construct() #

Should never be constructed outside the engine.

DynamicTreeNode._construct() :
  box = new AxisAlignedBox(),
  parent = null,
  next = null,
  childOne = null,
  childTwo = null { }

Properties

AxisAlignedBox box #

AxisAlignedBox box;

DynamicTreeNode childOne #

DynamicTreeNode childOne;

DynamicTreeNode childTwo #

DynamicTreeNode childTwo;

final bool isLeaf #

Returns true if this node is a leaf.

bool get isLeaf() => childOne == null;

int key #

Used for sorting.

int key;

DynamicTreeNode next #

DynamicTreeNode next;

DynamicTreeNode parent #

DynamicTreeNode parent;

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

var userData #

Can contain whatever is useful to the user.

var userData;

Operators

bool operator ==(other) #

inherited from Object

The equality operator.

The default behavior for all Objects is to return true if and only if this and other are the same object.

If a subclass overrides the equality operator it should override the hashCode method as well to maintain consistency.

bool operator ==(other) => identical(this, other);

Methods

new DynamicTreeNode._construct() #

Should never be constructed outside the engine.

DynamicTreeNode._construct() :
  box = new AxisAlignedBox(),
  parent = null,
  next = null,
  childOne = null,
  childTwo = null { }

int hashCode() #

inherited from Object

Get a hash code for this object.

All objects have hash codes. Hash codes are guaranteed to be the same for objects that are equal when compared using the equality operator ==. Other than that there are no guarantees about the hash codes. They will not be consistent between runs and there are no distribution guarantees.

If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.

external int hashCode();

noSuchMethod(String name, List args) #

inherited from Object

noSuchMethod is invoked when users invoke a non-existant method on an object. The name of the method and the arguments of the invocation are passed to noSuchMethod. If noSuchMethod returns a value, that value becomes the result of the original invocation.

The default behavior of noSuchMethod is to throw a noSuchMethodError.

external Dynamic noSuchMethod(String name, List args);

const Object() #

inherited from Object

Creates a new Object instance.

Object instances have no meaningful state, and are only useful through their identity. An Object instance is equal to itself only.

const Object();

String toString() #

Returns a string representation of this object.

docs inherited from Object
String toString() => box.toString();