# usedByEffector

> Whether the collider is used by an attached effector or not.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public bool usedByEffector { get; set; }
```

### Remarks

When checked, the [Collider2D](/engine/6000.6/script-reference/unityengine/collider2d.md) continues to work as a collision or trigger area however it will also be used by any [Effector2D](/engine/6000.6/script-reference/unityengine/effector2d.md) on the same GameObject.