How does this system work?

Asked on 08/01/2024

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The system described in the context works by using entities and components within RealityKit. Here's a breakdown of how it functions:

  1. Entities and Components: Entities are assigned various components that hold data. Systems then perform updates on entities that have specific components.

  2. Teleportation System Example:

    • The teleportation system stores its data in a control center component.
    • Every update, the system decreases a countdown value.
    • When the countdown reaches zero, it finds all entities with a teleporter component and picks a random one to spawn a robot.
    • The counter is then reset, and the process repeats until the club is at capacity.
  3. Debugging with RealityKit:

    • If an entity's components are misconfigured or missing, the system's behavior becomes unpredictable.
    • The RealityKit debugger captures the app state at the moment you hit pause, allowing you to inspect and modify components.
    • For example, if a countdown value isn't changing, it might be because the updated component wasn't saved back to the entity.
  4. Audio System in RealityKit:

    • Custom audio systems can read values (like throttle) and map them to audio properties (like decibels).
    • Audio playback can be spatial by default, and you can configure spatial, ambient, and channel audio components on entities.

For more detailed information, you can refer to the following sessions:

Relevant Sessions

  1. Break into the RealityKit debugger
  2. Enhance your spatial computing app with RealityKit audio
How does this system work? | Ask WWDC