All, I’m using spritekit, using on touch to detect what the users has tapped, ie., no collisions, etc.

I have an array of sprite nodes which in effect is a multi-state boolean switch for now the user can only select one node to be active at a time so the logic looks like

Node A,  Node B, Node C .........Node M off       off      off        initial on        off      off        user touches node A off       off      on          user touches node C 

etc

This code is my working template and would like to reduce a lot of this boiler-plate down to something reasonable.

I’m looking for ways that are either faster, more the “Apple Way”, more OOP.

    var temp1:SKSpriteNode = SKSpriteNode()   override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?)   {     if let touch = touches.first     {       let tappedNodes:[sk_Node] = nodes(at: touch.location(in: self) )        for node in tappedNodes       {     switch node.name!         {         case "level_1":           pushd(node: node)           node.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_1_selected") ], timePerFrame: K1_4.f64_t) )            temp1 = childNode(withName: "level_2")!           temp1.run(sk_Action.animate(with: [sk_Texture(imageNamed: "level_2_normal") ], timePerFrame: K1_4.f64_t) )           popd(node:temp1)            temp1 = SKSpriteNode()           temp1 = childNode(withName: "level_3")!           temp1.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_3_normal") ], timePerFrame: K1_4.f64_t) )           popd(node:temp1)      case "level_2":       pushd(node: node)       node.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_2_selected") ], timePerFrame: K1_4.f64_t) )        temp1 = childNode(withName: "level_1")!       temp1.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_1_normal") ], timePerFrame: K1_4.f64_t) )       popd(node:temp1)        temp1 = SKSpriteNode()       temp1 = childNode(withName: "level_3")!       temp1.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_3_normal") ], timePerFrame: K1_4.f64_t) )       popd(node:temp1)      case "level_3":       pushd(node: node)       node.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_3_selected") ], timePerFrame: K1_4.f64_t) )        temp1 = childNode(withName: "level_2")!       temp1.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_2_normal") ], timePerFrame: K1_4.f64_t) )       popd(node:temp1)        temp1 = SKSpriteNode()       temp1 = childNode(withName: "level_1")!       temp1.run( sk_Action.animate(with: [sk_Texture(imageNamed: "level_1_normal") ], timePerFrame: K1_4.f64_t) )       popd(node:temp1)  } } } } 

pushd and popd are SKActions that do some simple scaling up and down.

Thanks.