didBegin(_:)
Called when two bodies first contact each other.
Declaration
optional func didBegin(_ contact: SKPhysicsContact)Parameters
- contact:
An object that describes the contact.
Discussion
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 ground.
Listing 1. Responding to a contact event.
func didBegin(_ contact: SKPhysicsContact) {
if contact.bodyA.node?.name == "ground" || contact.bodyB.node?.name == "ground" {
// execute code to respond to object hitting ground
}
}