How to know which SKSpriteNode is affected by collision detection in Swift?

Question

Situation: I have two or more ships on my iOS screen. Both have different attributes like name, size, hitpoints and score points. They are displayed as

Answer 1

The SKPhysicsBody has a property node which is the SKNode associated to the body. You just need to perform a conditional cast to your Ship class.

    if let ship = contact.bodyA.node as? Ship {
        // here you have your ship object of type Ship
        print("Score of this ship is: \(ship.score)!!!")
    }

Please note that the Ship node could be the one associated with bodyB so.

    if let ship = contact.bodyA.node as? Ship {
        // here you have your ship...
    } else if let ship = contact.bodyB.node as? Ship {
        // here you have your ship...
    }

Hope this helps.