CollisionDetectionMode

Definition

• Type: Enum
• Namespace: UnityEngine
• Assembly: UnityEngine.PhysicsModule

public enum CollisionDetectionMode

Examples

 //This script allows you to switch collision detection mode at the press of the space key, and move your GameObject. It also outputs collisions that occur to the console. //Attach this script to a GameObject and make sure it has a Rigidbody component //If it doesn't have a Rigidbody component, click the GameObject, go to its Inspector and click the <b>Add Component</b> button. Then, go to <b>Physics</b>><b>Rigidbody</b>. //Create another GameObject. Make sure it has a Collider, so you can test collisions between them.using UnityEngine;using UnityEngine.InputSystem;public class Example : MonoBehaviour{    private Rigidbody rb;    private float moveSpeed = 5f;    [Header("Input Actions")]    public InputActionReference moveAction;    private void OnEnable()    {        moveAction.action.Enable();    }    private void OnDisable()    {        moveAction.action.Disable();    }    void Start()    {        //Fetch the Rigidbody of the GameObject (make sure this is attached in the Inspector window)        rb = GetComponent<Rigidbody>();        //Make sure the Rigidbody can't rotate or move in the z axis for this example        rb.constraints = RigidbodyConstraints.FreezeRotation | RigidbodyConstraints.FreezePositionZ;    }    void Update()    {        //Change the GameObject's movement in the X axis        float translationX = moveAction.action.ReadValue<Vector2>().x * moveSpeed;        //Change the GameObject's movement in the Y axis        float translationY = moveAction.action.ReadValue<Vector2>().y * moveSpeed;        //Move the GameObject        transform.Translate(new Vector3(translationX, translationY, 0));        //Press the space key to switch the collision detection mode        if (Keyboard.current.spaceKey.wasPressedThisFrame)            SwitchCollisionDetectionMode();    }    //Detect when there is a collision starting    void OnCollisionEnter(Collision collision)    {        //Ouput the Collision to the console        Debug.Log("Collision : " + collision.gameObject.name);    }    //Detect when there is are ongoing Collisions    void OnCollisionStay(Collision collision)    {        //Output the Collision to the console        Debug.Log("Stay : " + collision.gameObject.name);    }    //Switch between the different Collision Detection Modes    void SwitchCollisionDetectionMode()    {        switch (rb.collisionDetectionMode)        {            //If the current mode is continuous, switch it to continuous dynamic mode            case CollisionDetectionMode.Continuous:                rb.collisionDetectionMode = CollisionDetectionMode.ContinuousDynamic;                break;            //If the current mode is continuous dynamic, switch it to continuous speculative            case CollisionDetectionMode.ContinuousDynamic:                rb.collisionDetectionMode = CollisionDetectionMode.ContinuousSpeculative;                break;            // If the current mode is continuous speculative, switch it to discrete mode            case CollisionDetectionMode.ContinuousSpeculative:                rb.collisionDetectionMode = CollisionDetectionMode.Discrete;                break;            //If the current mode is discrete, switch it to continuous mode            case CollisionDetectionMode.Discrete:                rb.collisionDetectionMode = CollisionDetectionMode.Continuous;                break;        }    }}

Fields