# ParticleSystem.ColliderData

> Script interface for particle Collider data.

## Definition

* **Type:** Struct
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
public struct ParticleSystem.ColliderData
```

## Remarks

ColliderData contains information about which Colliders a particle is interacting with. It can be used in the MonoBehaviour.OnParticleTrigger callback, when the Trigger module is enabled.

## Methods

| Method                                                                                                          | Description                                                        |
| --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ |
| [GetCollider](/engine/6000.0/script-reference/unityengine/particlesystem/colliderdata/getcollider.md)           | Retrieve a specific Collider that a particle iss interacting with. |
| [GetColliderCount](/engine/6000.0/script-reference/unityengine/particlesystem/colliderdata/getcollidercount.md) | Returns how how many Colliders a particle is interacting with.     |