Dart Documentationbox2d_htmlContactImpulse

ContactImpulse class

Contact impulses for reporting. Impulses are used instead of forces because sub-step forces may approach infinity for rigid body collisions. These match up one-to-one with the contact points in Manifold.

class ContactImpulse {
  List<num> normalImpulses;
  List<num> tangentImpulses;

  ContactImpulse() :
    normalImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS),
    tangentImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS);
}

Constructors

new ContactImpulse() #

ContactImpulse() :
  normalImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS),
  tangentImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS);

Properties

List<num> normalImpulses #

List<num> normalImpulses;

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

List<num> tangentImpulses #

List<num> tangentImpulses;

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 ContactImpulse() #

ContactImpulse() :
  normalImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS),
  tangentImpulses = new List<num>(Settings.MAX_MANIFOLD_POINTS);

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() #

inherited from Object

Returns a string representation of this object.

external String toString();