How to Copy Skspritenode with Skphysicsbody

How to copy SKSpriteNode with SKPhysicsBody?

I take one way to resolve your problem, probably is not the best way, but

   //COPY
   let spriteCopy = spriteNode.copy() as SKSpriteNode
   let physicsCopy:SKPhysicsBody = spriteNode.physicsBody!;

   ...
   //COPY PHYSICS BODY HARD MODE
   spriteCopy.physicsBody = physicsCopy;

To fix this problem, I created one extension, and @mogelbuster suggested override default copy(), ant it sounds great.

extension SKSpriteNode
{
    override open func copy() -> Any {
        let node = super.copy() as! SKSpriteNode;
        node.physicsBody = super.physicsBody;
        return node;
    }
}

With this extension you can do it, the default copy() method return Any because this you need cast to SKSpriteNode.

// COPY
let spriteCopy = spriteNode.copy() as! SKSpriteNode;

// ORIGINAL
spriteNode.name
spriteNode.physicsBody?.linearDamping
spriteNode.physicsBody?.angularDamping
spriteNode.physicsBody?.area

// COPY
spriteCopy.name
spriteCopy.physicsBody?.linearDamping
spriteCopy.physicsBody?.angularDamping
spriteCopy.physicsBody?.area

SpriteKit, copying a physics body does NOT copy the settings?

It has to do with SKPhysicsBody being a wrapper class to PKPhysicsBody

Essentially what is going on is when you create a copy of SKPhysicsBody, it creates a new instance of PKPhysicsBody, not a copy of it.

To get around this, you need to write an extension that fills in the values for you:

extension SKPhysicsBody
{
    override open func copy() -> Any {
        guard let body = super.copy() as? SKPhysicsBody else {fatalError("SKPhysicsBody.copy() failed")}
        body.affectedbyGravity = affectedByGravity
        body.allowsRotation= allowsRotation
        body.isDynamic= isDynamic
        body.mass= mass
        body.density = density
        body.friction = friction
        body.restitution = restitution
        body.linearDamping = linearDamping
        body.angularDamping = angularDamping

        return body
    }
}

Note, I typed this by hand, I do not have XCode available at this time to test if it does work.

How to create a physics body for an SKSpriteNode with an interior in Sprite Kit (Swift)

You can use init(edgeLoopFrom:) initializer to achieve inner edge friction. you can use this code below:

 override func didMove(to view: SKView) {
    //Setup scene's physics body (setup the walls)
    physicsBody = SKPhysicsBody(edgeLoopFrom: frame)

    let back = SKSpriteNode(imageNamed: "1")
    back.position = CGPoint(x: frame.midX, y: frame.midY)
    back.size = CGSize(width: 500, height: 600)
    back.zPosition = -3
    let rect = CGRect(origin: CGPoint(x: -back.size.width/2, y: -back.size.height/2), size: back.size)
    back.physicsBody = SKPhysicsBody(edgeLoopFrom: rect)

    addChild(back)

    //Add Red ball "inside" the back sprite
    let red = SKShapeNode(circleOfRadius: 20)
    red.fillColor = .red
    red.strokeColor = .clear
    red.position = back.position
    red.physicsBody = SKPhysicsBody(circleOfRadius: 20)
    red.physicsBody?.restitution = 1
    red.physicsBody?.friction = 0
    red.zPosition = 1
    red.physicsBody?.affectedByGravity = false

    addChild(red)

    red.physicsBody?.applyImpulse(CGVector(dx: 20, dy: 15))

}

please follow this Question and have a look to the answer given below.

i am providing a screenshot of my project

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