---
title: SKSceneDelegate
framework: spritekit
role: symbol
role_heading: Protocol
path: spritekit/skscenedelegate
---

# SKSceneDelegate

Methods that, when implemented, allow any class to participate in the SpriteKit render loop callbacks.

## Declaration

```swift
protocol SKSceneDelegate : NSObjectProtocol
```

## Mentioned in

Configuring a Physics Body Detecting Changes at Each Step of an Animation Disconnecting Bodies from Joints Displaying 3D Content in a SpriteKit Scene Getting Started with Actions Getting Started with Nodes Responding to Frame-Cycle Events Subclassing Scenes Versus Assigning a Delegate Use SpriteKit Objects within Scene Delegate Callbacks

## Overview

Overview The SKSceneDelegate protocol is used to implement a delegate to be called whenever the scene is being animated. Typically, you supply a delegate when you want to use a scene without requiring the scene to be subclassed. The methods in this protocol all correspond to methods implemented by the SKScene class. If the delegate implements a particular method, that method is called instead of the corresponding method on the scene object. When processing a scene, SpriteKit runs a loop that processes and renders the scene. The SKSceneDelegate methods allows you to add logic at any step of the loop.

important: If your view has a SKViewDelegate and its view(_:shouldRenderAtTime:) method returns false, the update is skipped and none of the scene delegate methods are called.

## Topics

### Handling Animation Events

- [Use SpriteKit Objects within Scene Delegate Callbacks](spritekit/use-spritekit-objects-within-scene-delegate-callbacks.md)
- [update(_:for:)](spritekit/skscenedelegate/update(_:for:).md)
- [didEvaluateActions(for:)](spritekit/skscenedelegate/didevaluateactions(for:).md)
- [didSimulatePhysics(for:)](spritekit/skscenedelegate/didsimulatephysics(for:).md)
- [didApplyConstraints(for:)](spritekit/skscenedelegate/didapplyconstraints(for:).md)
- [didFinishUpdate(for:)](spritekit/skscenedelegate/didfinishupdate(for:).md)

## Relationships

### Inherits From

- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Configuring a Delegate

- [Subclassing Scenes Versus Assigning a Delegate](spritekit/subclassing-scenes-versus-assigning-a-delegate.md)
- [delegate](spritekit/skscene/delegate.md)