ContactEdge class
A contact edge connects bodies and contacts together in a contact graph. Each body is a node in the graph and each contact is an edge. A contact edge is a part of a doubly linked list that is maintained in each attached body. Each contact has two contact nodes, one for each attached body.
class ContactEdge { /** The other body attached to the edge. */ Body other; /** The contact. */ Contact contact; /** The previous contact edge in the body's contact list. */ ContactEdge prev; /** The next contact edge in the body's contact list. */ ContactEdge next; /** * Constructs a new ContactEdge with all fields set to null. */ ContactEdge() : other = null, contact = null, prev = null, next = null {} }
Constructors
new ContactEdge() #
Constructs a new ContactEdge with all fields set to null.
ContactEdge() : other = null, contact = null, prev = null, next = null {}
Properties
ContactEdge next #
The next contact edge in the body's contact list.
ContactEdge next;
ContactEdge prev #
The previous contact edge in the body's contact list.
ContactEdge prev;
final Type runtimeType #
A representation of the runtime type of the object.
external Type get runtimeType;
Operators
bool operator ==(other) #
The equality operator.
The default behavior for all Object
s 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 ContactEdge() #
Constructs a new ContactEdge with all fields set to null.
ContactEdge() : other = null, contact = null, prev = null, next = null {}
int hashCode() #
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) #
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() #
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.
external String toString();