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Using Base Nodes to Lay Out SpriteKit Content

Use nonvisual nodes to define the layout of a scene.

Overview

Each onscreen element in SpriteKit is referred to as a node. Nodes are either visual elements or containers of other nodes. You set up the appearance of a SpriteKit scene by adding nodes alongside and on top of each other in a hierarchical form. Collectively, this structure is referred to as the node tree or the node hierarchy.

These are the basic nonvisual nodes in SpriteKit:

  • SKNode is a container node. It doesn't render any content of its own, but works as a layout tool for its child nodes.

  • SKReferenceNode doesn't define content of its own, but refers to another node or archived file that does.

  • SKCameraNode defines point of view within a scene. Its inverse scale is applied to all nodes in the hierarchy except for its children. Use the children of SKCameraNode for UI elements that should be unaffected by zoom level.

For a list of visual elements, see Nodes that Draw, which also includes some examples of using visual nodes.

See Also

Base Nodes

class SKNode

The base class of all SpriteKit nodes.

class SKCameraNode

A node that determines which parts of the scene are visible within a view.

class SKReferenceNode

A node that's defined in an archived .sks file.