Function Extern

An Extern Game Object is a special type of Game Object that allows you to pass rendering off to a 3rd party.

When you create an Extern and place it in the display list of a Scene, the renderer will process the list as usual. When it finds an Extern it will flush the current batch, clear down the pipeline and prepare a transform matrix which your render function can take advantage of, if required.

The WebGL context is then left is a 'clean' state, ready for you to bind your own shaders, or draw to it, whatever you wish to do. Once you've finished, you should free-up any of your resources. The Extern will then rebind the Phaser pipeline and carry on rendering the display list.

Although this object has lots of properties such as Alpha, Blend Mode and Tint, none of them are used during rendering unless you take advantage of them in your own render code.

Properties

contextTypes? defaultProps? displayName? propTypes?

Properties

OptionalcontextTypes

contextTypes?: ValidationMap<any>

Deprecated

Lets you specify which legacy context is consumed by this component.

See

Legacy React Docs

OptionaldefaultProps

defaultProps?: Partial<GameObjectProps<Extern>>

Used to define default values for the props accepted by the component.

See

React Docs

Example

type Props = { name?: string }

const MyComponent: FC<Props> = (props) => {
  return <div>{props.name}</div>
}

MyComponent.defaultProps = {
  name: 'John Doe'
}

Deprecated

Use values for destructuring assignments instead.

OptionaldisplayName

displayName?: string

Used in debugging messages. You might want to set it explicitly if you want to display a different name for debugging purposes.

See

Legacy React Docs

Example


const MyComponent: FC = () => {
  return <div>Hello!</div>
}

MyComponent.displayName = 'MyAwesomeComponent'

OptionalpropTypes

propTypes?: WeakValidationMap<GameObjectProps<Extern>>

Used to declare the types of the props accepted by the component. These types will be checked during rendering and in development only.

We recommend using TypeScript instead of checking prop types at runtime.

See

React Docs

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Properties