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Node scripts can be used to render shapes, images, text, artboards, and more. A scripted node can be attached to any Node and is rendered in the local transform space of the hosting Node. For more information, see Node Scripts.

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Methods

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init

Called once when the node is created. Returns true if initialization succeeds. For a more complete example using init, see Instantiating Components. 
-- Define the script's data and inputs.
type MyNode = {}

-- Called once when the script initializes.
function init(self: MyNode, context: Context): boolean
  return true
end

-- Return a factory function that Rive uses to build the Node instance.
return function(): Node<MyNode>
  return {
    init = init
  }
end

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advance

Optional per-frame update. Returns true if the node should continue receiving advance calls. For a more complete example using advance, see Fixed-step Advanced. 
-- Define the script's data and inputs.
type MyNode = {}

-- Called every frame to advance the simulation.
-- 'seconds' is the elapsed time since the previous frame.
function advance(self: MyNode, seconds: number): boolean
  return false
end

-- Return a factory function that Rive uses to build the Node instance.
return function(): Node<MyNode>
  return {
    advance = advance,
  }
end

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update

Called when an input value changes. 
-- Define the script's data and inputs.
type MyNode = {}

-- Called when any input value changes.
function update(self: MyNode)
  print('An script input value has changed.')
end

-- Return a factory function that Rive uses to build the Node instance.
return function(): Node<MyNode>
  return {
    update = update,
  }
end

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draw

Called to render the node using the provided Renderer. For a more complete example using draw, see Instantiating Components. 
-- Define the script's data and inputs.
type MyNode = {}

-- Called every frame (after advance) to render the content.
function draw(self: MyNode, renderer: Renderer) end

-- Return a factory function that Rive uses to build the Node instance.
return function(): Node<MyNode>
  return {
    draw = draw,
  }
end

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pointerDown

Pointer event down handler. 
function handlePointerDown(self: MyGame, event: PointerEvent)
  print('Pointer Position: ', event.position.x, event.position.y)

  event:hit()
end

return function(): Node<MyGame>
    return {
        init = init,
        advance = advance,
        draw = draw,
        pointerDown = handlePointerDown,
    }
end

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pointerMove

Pointer event move handler. 
function handlePointerMove(self: MyGame, event: PointerEvent)
  print('Pointer Position: ', event.position.x, event.position.y)

  event:hit()
end

return function(): Node<MyGame>
    return {
        init = init,
        advance = advance,
        draw = draw,
        pointerMove = handlePointerMove,
    }
end

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pointerUp

Pointer event up handler. 
function handlePointerUp(self: MyGame, event: PointerEvent)
  print('Pointer Position: ', event.position.x, event.position.y)

  event:hit()
end

return function(): Node<MyGame>
    return {
        init = init,
        advance = advance,
        draw = draw,
        pointerUp = handlePointerUp,
    }
end

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pointerExit

Pointer event exit handler. 
function handlePointerExit(self: MyGame, event: PointerEvent)
  print('Pointer Position: ', event.position.x, event.position.y)

  event:hit()
end

return function(): Node<MyGame>
    return {
        init = init,
        advance = advance,
        draw = draw,
        pointerExit = handlePointerExit,
    }
end