# Discrete

> Continuous collision detection is off for this Rigidbody.

## Definition

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

```csharp
Discrete = 0
```

### Remarks

This is the default collision detection mode, and it is the fastest mode. Collisions for this collider will only be checked at the content's [Time.fixedDeltaTime](/engine/6000.0/script-reference/unityengine/time/fixeddeltatime.md).

### Examples

```csharp
//This script allows you to switch collision detection mode at the press of the space key
//Attach this script to a GameObject
//Click the GameObject, go to its Inspector and click the <b>Add Component</b> Button. Then, go to <b>Physics</b>><b>Rigidbody</b>.

using UnityEngine;
using UnityEngine.UI;

public class Example : MonoBehaviour
{
    Rigidbody m_Rigidbody;

    void Start()
    {
        m_Rigidbody = GetComponent<Rigidbody>();
    }

    public void Update()
    {
        //Press the space key to switch the collision detection mode
        if (Input.GetKeyDown(KeyCode.Space))
            SwitchCollisionDetectionMode();
    }

    //Switch between the different Collision Detection Modes
    void SwitchCollisionDetectionMode()
    {
        switch (m_Rigidbody.collisionDetectionMode)
        {
            //If the current mode is continuous, switch it to continuous dynamic mode
            case CollisionDetectionMode.Continuous:
                m_Rigidbody.collisionDetectionMode = CollisionDetectionMode.ContinuousDynamic;
                break;
            //If the current mode is continuous dynamic, switch it to continuous speculative
            case CollisionDetectionMode.ContinuousDynamic:
                m_Rigidbody.collisionDetectionMode = CollisionDetectionMode.ContinuousSpeculative;
                break;

            // If the current mode is continuous speculative, switch it to discrete mode
            case CollisionDetectionMode.ContinuousSpeculative:
                m_Rigidbody.collisionDetectionMode = CollisionDetectionMode.Discrete;
                break;

            //If the current mode is discrete, switch it to continuous mode
            case CollisionDetectionMode.Discrete:
                m_Rigidbody.collisionDetectionMode = CollisionDetectionMode.Continuous;
                break;
        }
    }
}
```