Arrays 如何在swift中创建SCNNode数组

我想创建一个基金来创建一个节点数组。我的声明如下：

func createSphereNode () {




        var spheres = [SCNNode()]



        let sphereGeometry = SCNSphere(radius:   2.5)
        let sphereMaterial = SCNMaterial()
        sphereMaterial.diffuse.contents = UIColor.greenColor()
        sphereGeometry.materials = [sphereMaterial]

        for var i=0;i<15;i++ {

         let   gravityFields  = SCNPhysicsField.radialGravityField()
            gravityFields .strength = 0
            spheres[i]  = SCNNode(geometry: sphereGeometry)
            spheres[i].position =  SCNVector3(x: Float(-15 + (6 * i)), y: 1.5, z: 0)
            spheres[i].physicsField = gravityFields
            let shape = SCNPhysicsShape(geometry: sphereGeometry, options: nil)
           let   sphereBodys  = SCNPhysicsBody(type: .Kinematic, shape: shape)
            spheres[i].physicsBody = sphereBodys

            sceneView.scene?.rootNode.addChildNode(spheres[i])




        }

func createSphereNode（）{
var spheres=[SCNNode（）]
让球墨法=圆球（半径：2.5）
设sphereMaterial=SCNMaterial（）
sphereMaterial.diffuse.contents=UIColor.greenColor（）
SpheregeMetry.materials=[球体材料]
对于var i=0；i找到的解决方案：

func createSphereNode () {
  //  var gravityFields = []
  //  var shapes = [SCNPhysicsShape()]
  //  var sphereBodys = [SCNPhysicsBody]()
 //   var spheres = [SCNNode()]

    var spheresArray : [SCNNode] = []



    let sphereGeometry = SCNSphere(radius:   1.5)
    let sphereMaterial = SCNMaterial()
    sphereMaterial.diffuse.contents = UIColor.greenColor()
    sphereGeometry.materials = [sphereMaterial]

    for var i=0;i<15;i++ {

     let   gravityFields  = SCNPhysicsField.radialGravityField()
        gravityFields .strength = 0
       let spheres  = SCNNode(geometry: sphereGeometry)
        spheres.position =  SCNVector3(x: Float(-15 + (6 * i)), y: 1.5, z: 0)
        spheres.physicsField = gravityFields
        let shape = SCNPhysicsShape(geometry: sphereGeometry, options: nil)
       let   sphereBodys  = SCNPhysicsBody(type: .Kinematic, shape: shape)
        spheres.physicsBody = sphereBodys

        sceneView.scene?.rootNode.addChildNode(spheres)

        spheresArray.append(spheres)




    }

func createSphereNode（）{
//var gravityFields=[]
//变量形状=[SCNPphysisShape（）]
//变量sphereBodys=[SCNPhysicsBody]（）
//var spheres=[SCNNode（）]
变量spheresArray:[SCNNode]=[]
让球墨法=圆球（半径：1.5）
设sphereMaterial=SCNMaterial（）
sphereMaterial.diffuse.contents=UIColor.greenColor（）
SpheregeMetry.materials=[球体材料]
对于var i=0；i“当我运行代码时……我有编译器错误。”–这没有任何意义。您可能有编译器错误（在这种情况下，程序未编译，您无法运行）或运行时错误（当程序已编译，但运行时会发生错误）。