ballNode = childNode(withName: "ballNode") as? SKSpriteNode
    ballNode?.physicsBody = SKPhysicsBody(circleOfRadius: (ballNode?.frame.size.width)! / 2)
    ballNode?.physicsBody?.isDynamic = true
    ballNode?.physicsBody?.usesPreciseCollisionDetection = true
    ballNode?.zPosition = 3
    ballNode?.physicsBody!.categoryBitMask = PhysicsCategory.ballCategory
    ballNode?.physicsBody!.contactTestBitMask = PhysicsCategory.trampolineCategory
    ballNode?.physicsBody!.collisionBitMask = PhysicsCategory.platformCategory
    ballNode?.physicsBody?.velocity = CGVector(dx: 0.0, dy: 0.0)
    ballNode?.move(toParent: _gameNode)

enumerateChildNodes(withName: "trampoline") {trampolineNode,_ in
    trampoline = trampolineNode as? SKSpriteNode
    trampolineNode.physicsBody = SKPhysicsBody.init(rectangleOf: CGSize(width: (trampoline?.size.width)!, height: (trampoline?.size.height)!))
    trampolineNode.physicsBody?.categoryBitMask = PhysicsCategory.trampolineCategory
    trampolineNode.physicsBody?.contactTestBitMask = PhysicsCategory.ballCategory
    trampolineNode.physicsBody?.collisionBitMask = PhysicsCategory.ballCategory
    trampolineNode.physicsBody?.affectedByGravity = false
    trampolineNode.physicsBody?.isDynamic = false
    trampolineNode.physicsBody?.usesPreciseCollisionDetection = true
    trampolineNode.physicsBody?.restitution = 1
    trampolineNode.move(toParent: _gameNode)

if collision == PhysicsCategory.ballCategory | PhysicsCategory.trampolineCategory {
        let src = [float2(0.0), float2(1.0), float2(2.0),
                   float2(3.0), float2(4.0), float2(5.0),
                   float2(6.0), float2(7.0), float2(8.0)]

        let dst = [float2(0.0), float2(0.0), float2(2.0),
                   float2(3.0), float2(1.0), float2(5.0),
                   float2(6.0), float2(7.0), float2(8.0)]

        warpGrid = SKWarpGeometryGrid(columns: 2, rows: 2,
                                      sourcePositions: src,
                                      destinationPositions: dst)
        //
        trampoline?.warpGeometry = warpGrid     <---This line removes the trampoline image, so I could only assume its the way I set up the source and destination points.

        let transform = SKAction.warp(to: warpGrid!, duration: 1)
        let transformAction = SKAction.repeat(transform!, count: 1)
        trampoline?.run(transformAction)
    }