Constraint class
A constraint limits or otherwise controls a Node's properties, such as position or rotation. Add a list of constraints by setting the Node's constraints property.
Constrains are applied after the update calls are completed. They can also be applied at any time by calling Node.applyConstraints. It's possible to create custom constraints by overriding this class and implementing the constrain method.
Constructors
Properties
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, 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.
-
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.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited