如何在Swift中將SKSpriteNode添加到場景？

Question

我試圖繼承SKSpriteNode到GameObject ，我想實例化的游戲場景類的外部對象。 這是我的GameObject來源於代碼SKSpriteNode ：

import SpriteKit

public class GameObject: SKSpriteNode {

    init( texture: SKTexture?, color: UIColor, size: CGSize, position:CGPoint, name:String ) 
    {   
        objectSize = size;
        objectName = name;
        objectSprite = texture;
        //call superclass here
        super.init(texture: texture, color: color, size: size);
        self.position = position;
    }

    convenience init(_ _x:CGFloat, _ _y:CGFloat, _ _object:String )// Default initializer
    {
        let texture = SKTexture(imageNamed: _object);
        let position = CGPoint(x:_x, y:_y);
        self.init(  texture: texture,color: UIColor(),size: texture.size(), position: position, name: _object);
    }

    //Overloaded initializer with size as extra argument
    convenience init(_ _x:CGFloat, _ _y:CGFloat, _ _size:Int, _ _object:String)
    {
        //size for the SKSpriteNode.
        let texture = SKTexture(imageNamed: _object);
        let position = CGPoint(x:_x, y:_y);
        self.init(  texture: texture, color: UIColor(), size: CGSize(width: _size, height: _size),position: position, name: _object);
    }

要實例化從GameObject派生的玩家，我必須編寫：

let player = PlayerShip(100, 100, "PlayerShip")
addChild(player)

但是， addChild()在gameScene之外gameScene 。 我的目標是實例化PlayerShip類的項目符號，但我不知道如何實現。 有人有建議嗎？

Answer 1

如果要在GameScene之外執行此操作，則需要一個go go全局屬性，該屬性具有對GameScene的引用。 然后，您可以致電：

myGameScene.AddChild(player)