SpriteKit 瓷砖地图不加载瓷砖

Posted 2023-03-14

【中文标题】SpriteKit 瓷砖地图不加载瓷砖

【英文标题】：SpriteKit tile map not loading tiles

【发布时间】：2017-09-22 10:13:41

【问题描述】：

我已经工作了好几天了。我在关卡编辑器中创建了一个平铺地图。它可以很好地加载到我的代码中，但是当我遍历图块时，它们都没有显示为具有定义。不知道我做错了什么。

一切运行良好，但不会加载磁贴定义。

'import SpriteKit

protocol EventListenerNode 
    func didMoveToScene()


typealias TileCoordinates = (column: Int, row: Int)

class GameScene: SKScene 

    var car = CarNode()
    var holdingAcceleration = false
    var mainCamera = SKCameraNode()
    var hub = SKNode()
    var levelHolder: SKNode!

    override func didMove(to view: SKView) 
        levelHolder = childNode(withName: "levelHolder")

        struct PhysicsCategory 
            static let None:  UInt32 = 0
            static let CarBody:   UInt32 = 0b1 // 0001 or 1
            static let Ground: UInt32 = 0b10 // 0010 or 2
            static let Tires:   UInt32 = 0b100 // 0100 or 4
        

        // This code sends a message to all nodes added to scene that conform to the EventListenerNode protocol
        enumerateChildNodes(withName: "//*", using:  node, _ in
            if let eventListenerNode = node as? EventListenerNode 
                eventListenerNode.didMoveToScene()
                //print("calling to all nodes.  didMoveToScene")
            
        )

        car = childNode(withName: "//Car") as! CarNode
        mainCamera = childNode(withName: "//Camera") as! SKCameraNode
        camera = mainCamera

//        /* Load Level 1 */
        let resourcePath = Bundle.main.path(forResource: "TestLevel", ofType: "sks")
        let level = SKReferenceNode (url: URL (fileURLWithPath: resourcePath!))
        levelHolder.addChild(level)
        let levelTileNode = childNode(withName: "//levelTileNode") as! SKTileMapNode
        var splinePoints = createGroundWith(tileNode:levelTileNode)

        let ground = SKShapeNode(splinePoints: &splinePoints,
                                 count: splinePoints.count)
        ground.lineWidth = 5
        ground.physicsBody = SKPhysicsBody(edgeChainFrom: ground.path!)
        ground.physicsBody?.restitution = 0.75
        ground.physicsBody?.isDynamic = false

        // Add the two nodes to the scene
        scene?.addChild(ground)

        ////////////////////////////Test///////////////////

    

    override func update(_ currentTime: TimeInterval) 
        if holdingAcceleration
            car.accelerate()
        
        let carPosition = car.scene?.convert(car.position, from: car.parent!)

        mainCamera.position = carPosition!

    


    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) 
        for touch in touches
            let location = touch.location(in: self)
            let touchNode = atPoint(location)

            if touchNode.name == "Gas"
                holdingAcceleration = true
            
        
    

    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) 
        for touch in touches
            let location = touch.location(in: self)
            let touchNode = atPoint(location)

            if touchNode.name == "Gas"
                holdingAcceleration = false
            
        
    

    /*
    func createSplineFrom(tileNode: SKTileMapNode)->[CGPoint]
        print("entered the createSpline function")
        var arrayOfPoints = [CGPoint]()
        let tileMap = tileNode

        let tileSize = tileMap.tileSize
        let halfWidth = CGFloat(tileMap.numberOfColumns) / 2.0 * tileSize.width
        let halfHeight = CGFloat(tileMap.numberOfRows) / 2.0 * tileSize.height

        for col in 0..<tileMap.numberOfColumns 
            print("in column \(col) of \(tileMap.numberOfColumns)")

            for row in 0..<tileMap.numberOfRows 
                //print("col: \(col) row: \(row)")

                if let tileDefinition = tileMap.tileDefinition(atColumn: col, row: row)
                
                    print("tileDefinition is found.  Holy cow")

                    let isEdgeTile = tileDefinition.userData?["groundFriction"] as? Int  //uncomment this if needed, see article notes
                    if (isEdgeTile != 0) 
                        let tileArray = tileDefinition.textures
                        //let tileTexture = tileArray[0]
                        let x = CGFloat(col) * tileSize.width - halfWidth + (tileSize.width/2)
                        let y = CGFloat(row) * tileSize.height - halfHeight + (tileSize.height/2)
                        _ = CGRect(x: 0, y: 0, width: tileSize.width, height: tileSize.height)
                        arrayOfPoints.append(CGPoint(x: x, y: y))

                        //let tileNode = SKNode()

                        //tileNode.position = CGPoint(x: x, y: y)

                    
                

            
        

        print(arrayOfPoints.count)

        return arrayOfPoints
    
    */

    func tile(in tileMap: SKTileMapNode, at coordinates: TileCoordinates) -> SKTileDefinition? 
            return tileMap.tileDefinition(atColumn: coordinates.column,    row: coordinates.row)
    

    func createGroundWith(tileNode:SKTileMapNode) -> [CGPoint] 
        var arrayOfPoints = [CGPoint]()
        print("inside createGround")
        let groundMap = tileNode

        let tileSize = groundMap.tileSize
        let halfWidth = CGFloat(groundMap.numberOfColumns) / 2.0 * tileSize.width
        let halfHeight = CGFloat(groundMap.numberOfRows) / 2.0 * tileSize.height

        for row in 0..<groundMap.numberOfRows 
            for column in 0..<groundMap.numberOfColumns 
                // 2
                guard let tileDefinition = tile(in: groundMap, at: (column, row))
                    else  continue 
                print("inside tileDefinitioin")
                let isEdgeTile = tileDefinition.userData?["groundFriction"] as? Int
                if (isEdgeTile != 0) 
                    let tileArray = tileDefinition.textures
                    //let tileTexture = tileArray[0]
                    let x = CGFloat(column) * tileSize.width - halfWidth + (tileSize.width/2)
                    let y = CGFloat(row) * tileSize.height - halfHeight + (tileSize.height/2)
                    _ = CGRect(x: 0, y: 0, width: tileSize.width, height: tileSize.height)
                    arrayOfPoints.append(CGPoint(x: x, y: y))
                
        // 4
        //bugsNode.name = "Bugs"
        //addChild(bugsNode)
        // 5
        //bugsMap.removeFromParent()
            

        
        return arrayOfPoints
    

`

【问题讨论】：

感谢您的编辑，但为什么要投反对票？我研究了几天为什么 tileMap.definition 没有返回一些东西。我试过直接在游戏场景中加载场景，结果没有变化。我添加了额外的瓷砖来覆盖每个方格，看看某个瓷砖是否有问题。我只是不知道该去哪里回答这个问题。我已经查看了 Apple 的所有关于此的文档，但一无所获。

不知道为什么有人投了反对票，我只是给了你更多的标签来帮助你的结果

【参考方案1】：

所以我想通了。瓦片集有一个“按需”资源标签。由于我没有意识到这一点，游戏并没有从游戏场景中自动加载图块。总是很简单。