SKTileMap 从 GKNoiseMap 获取值

Posted 2023-03-10

【中文标题】SKTileMap 从 GKNoiseMap 获取值

【英文标题】：SKTileMap getting Values from GKNoiseMap

【发布时间】：2017-10-07 08:34:37

【问题描述】：

我一直在 GKNoiseMaps 上关注Apple Docs，我设法生成了一张图片，它看起来非常好

在此处使用此代码

class GameScene: SKScene 


class Noise: GKNoise 
    var NoiseSource = GKPerlinNoiseSource(frequency: 0.05, octaveCount: 3, persistence: 1, lacunarity: 1, seed: Int32(arc4random_uniform(UInt32(500 - 1))))
    override init(_ noiseSource: GKNoiseSource, gradientColors: [NSNumber : UIColor]) 
        super.init(NoiseSource, gradientColors: [ (+1.0 as NSNumber): UIColor.red, (-1.0 as NSNumber) : UIColor.black])
    

let noise = Noise()
let Vector1 = vector_double2(1.0, 1.0)

override func didMove(to view: SKView) 
    let NoiseMap = GKNoiseMap(noise, size: vector_double2(300.0, 300.0),
                              origin: vector_double2(0.0, 0.0),
                              sampleCount: vector_int2(100),
                              seamless: true)
    let texture = SKTexture(noiseMap: NoiseMap)
    let Node = SKSpriteNode(texture: texture)

    Node.size = CGSize(width: 1000,height: 1000)
    Node.position = CGPoint(x: 0,y: 0)
    self.addChild(Node)


    override func update(_ currentTime: TimeInterval) 
        // Called before each frame is rendered
    

现在我如何在此处使用此更新的代码创建 SKTileMap

class GameScene: SKScene 


class Noise: GKNoise 
    var NoiseSource = GKPerlinNoiseSource(frequency: 0.05, octaveCount: 3, persistence: 1, lacunarity: 1, seed: Int32(arc4random_uniform(UInt32(500 - 1))))
    override init(_ noiseSource: GKNoiseSource, gradientColors: [NSNumber : UIColor]) 
        super.init(NoiseSource, gradientColors: [(+1.0 as NSNumber): UIColor.red, (-1.0 as NSNumber) : UIColor.black])
    

let noise = Noise()
let Vector1 = vector_double2(1.0, 1.0)

override func didMove(to view: SKView) 
    let NoiseMap = GKNoiseMap(noise, size: vector_double2(300.0, 300.0),
                              origin: vector_double2(0.0, 0.0),
                              sampleCount: vector_int2(100),
                              seamless: true)
    let tileGroup = [SKTileGroup]()
    let tileSet = SKTileSet(tileGroups: tileGroup)
    let map = SKTileMapNode(tileSet: tileSet, columns: 10, rows: 10, tileSize: CGSize(width: 20,height: 20), tileGroupLayout: tileGroup)


    override func update(_ currentTime: TimeInterval) 
        // Called before each frame is rendered
    

并使用 GKNoiseMap 中的值生成 SKTileMap，如 Apple Docs 中所述？

任何帮助将不胜感激，因为我真的不了解 SKTileMaps 及其工作原理

【参考方案1】：

您可以使用从NoiseMap 创建的纹理创建SKTileDefinition。然后可以在任何位置将此图块绘制到SKTileMapNode 中。此示例遍历所有列和行并设置图块。我将 NoiseMap 的大小设置为 64 x 64，因为这是平铺的典型大小。

override func sceneDidLoad() 
    let noise = Noise()
    let noiseMap = GKNoiseMap(noise, size: vector_double2(64.0, 64.0), origin: vector_double2(0.0, 0.0), sampleCount: vector_int2(100), seamless: true)
    let bgTexture = SKTexture(noiseMap: noiseMap)

    let bgDefinition = SKTileDefinition(texture: bgTexture, size: bgTexture.size())
    let bgGroup = SKTileGroup(tileDefinition: bgDefinition)
    bgGroup.name = "noiseTest"

    let tileSet = SKTileSet(tileGroups: [bgGroup])

    let bgNode = SKTileMapNode(tileSet: tileSet, columns: 10, rows: 10, tileSize: bgTexture.size())
    let tile = bgNode.tileSet.tileGroups.first(where:  $0.name == "noiseTest" )

    for column in 0 ..< bgNode.numberOfColumns 
        for row in 0 ..< bgNode.numberOfRows 
            bgNode.setTileGroup(tile, forColumn: column, row: row)
        
    

    bgNode.position = CGPoint(x: 0, y: 0)
    bgNode.setScale(1)

    self.addChild(bgNode)

【讨论】：

好的，谢谢，我会测试它。顺便说一句，我今天推出的应用程序（与此无关），它的名称为“Crappy Duck”，如果您能查看一下，我将不胜感激

老兄！有用！但我需要根据噪音水平设置图块我试图根据噪音水平创建地图，所以地图有一点随机性

如果您使用初始化方法public init(rules: [SKTileGroupRule]) 初始化SKTileGroup，那么您可以指定SKTileDefinitions 的数组。那应该处理随机性！

你能用一个例子更新你的答案，这样我们就不会因为不是正确答案而惹上麻烦

我认为随机化 SKTileMapNode 是另一回事。你可以自己试试，然后再问一个问题。