# Sandbox.Rigidbody.CollisionUpdateEventsEnabled

```csharp
bool CollisionUpdateEventsEnabled { get; set; }
```

Like CollisionEventsEnabled but means the OnCollisionUpdate gets called when the collision persists.
Updates are only sent while the collision is awake, sleeping contacts don't emit them.

Declared in [Sandbox.Rigidbody](/api/Sandbox.Rigidbody).
Assembly: `Sandbox.Engine`.