Called when two bodies first contact each other.
- iOS 7.0+
- macOS 10.9+
- tvOS 9.0+
- watchOS 3.0+
An object that describes the contact.
The two physics bodies described in the contact parameter are not passed in a guaranteed order. The following code shows how you might respond to the beginning of a contact event to execute code if either physics body is owned by a node with the name