A Constraint that constrains the position of a node to equal the position of another node, optionally with dampening.

Inheritance

Constructors

ConstraintPositionToNode(Node targetNode, { double dampening, Offset offset: Offset.zero })

Creates a new Constraint that constrains the poistion of a node to be equal to the position of the targetNode. Optionally an offset can be used and also dampening. The targetNode doesn't need to have the same parent, but they need to be added to the same SpriteBox.

Properties

dampening double

Dampening used when following the targetNode, value between 0.0 and 1.0.

read-only
hashCode int

Get a hash code for this object.

read-only, inherited
offset Offset

Offset to the target node.

read-only
runtimeType Type

A representation of the runtime type of the object.

read-only, inherited
targetNode Node

Target node to follow.

read-only

Operators

operator ==(other) bool

The equality operator.

inherited

Methods

constrain(Node node, double dt) → void

Called after update is complete, if the constraint has been added to a Node. Override this method to modify the node's property according to the constraint.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
preUpdate(Node node, double dt) → void

Called before the node's update method is called. This method can be overridden to create setup work that needs to happen before the the node is updated, e.g. to calculate the node's speed.

inherited
toString() String

Returns a string representation of this object.

inherited