Behavior Resolvable

There are several syntaxes that are legitimate to use inside of a Ninja.behavior() definition. They are:

A Behavior object

NinjaScript defines a constructor for Behavior objects – you’re unlikely to use them directly since the Behavior constructor is encapsulated inside the Ninja definition scope – but there are a number of methods that return a Behavior

A Metabehavior object

Metabehaviors are able to select what Behavior to apply given the tag they’re applied to. Otherwise, alike to Behaviors.

A function

You can use a function that returns a Behavior, and NinjaScript will use the result of calling the function with no arguments.

A behavior definition

You can give NinjaScript an object suitable as a behavior definition as the value bound to a selector. If you aren’t using a packaged behavior, this is the most common form – we call them ad hoc behaviors.

An array of the above

Multiple behaviors can be applied to the same element – their composition is a little tricky but powerful. An array will apply each of the behaviors in turn.