The OnSoundEvent property is an event handler that is triggered whenever a sound event occurs within the SceneModel. This property allows you to define custom behavior in response to sound events, such as playing a specific sound, logging the event, or triggering other game logic.

To use the OnSoundEvent property, assign a method that matches the System.Action<Sandbox.SceneModel.SoundEvent> delegate signature. This method will be called whenever a sound event is triggered.

Example usage:

SceneModel mySceneModel = new SceneModel();
mySceneModel.OnSoundEvent = (soundEvent) => {
    // Handle the sound event
    // For example, play a sound or log the event
    PlaySound(soundEvent);
};