PhysicsCallbacks.IContactCallback

Definition

• Type: Interface
• Namespace: Unity.U2D.Physics
• Assembly: UnityEngine.PhysicsCore2DModule

public interface PhysicsCallbacks.IContactCallback

Remarks

OnContactBegin2D

OnContactEnd2D

Examples

using UnityEngine;using Unity.U2D.Physics;// Add the PhysicsCallbacks.IContactCallback interface.public class DetectCollisions : MonoBehaviour, PhysicsCallbacks.IContactCallback{    void Start()    {        PhysicsWorld world = PhysicsWorld.defaultWorld;        // Create a small falling circle.        PhysicsBody object1 = world.CreateBody(new PhysicsBodyDefinition        {            position = new Vector2(0.5f, 8f),            type = PhysicsBody.BodyType.Dynamic        });        PhysicsShape objectShape1 = object1.CreateShape(CircleGeometry.defaultGeometry);        // Create a larger static circle below.        PhysicsBody object2 = world.CreateBody(new PhysicsBodyDefinition        {            position = new Vector2(0f, 0f),            type = PhysicsBody.BodyType.Static        });        object2.CreateShape(new CircleGeometry { radius = 3f });        // Set object 1 to activate collisions.        objectShape1.contactEvents = true;        objectShape1.callbackTarget = this;    }    // Log when the small circle collides.    public void OnContactBegin2D(PhysicsEvents.ContactBeginEvent eventData)    {        var contact = eventData.contactId.contact;        Debug.Log("Collision started between shapes: " + contact.shapeA + " and " + contact.shapeB);    }    // Log when the small circle stops colliding.    public void OnContactEnd2D(PhysicsEvents.ContactEndEvent eventData)    {        var contact = eventData.contactId.contact;        Debug.Log("Collision ended between shapes: " + contact.shapeA + " and " + contact.shapeB);    }}

Methods