ios - SKTileMap 从 GKNoiseMap 获取值

Question

我一直在关注 Apple Docs在 GKNoiseMaps 上，我设法生成了一个图像，它看起来非常好

在这里使用这段代码

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
    }
}

现在我如何使用这里更新的代码创建 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
    }
}

并按照 Apple 文档中的说明使用 GKNoiseMap 的值生成 SKTileMap？

任何帮助将不胜感激，因为我真的不知道 SKTileMaps 及其工作原理

Answer 1

您可以使用从 NoiseMap 创建的纹理创建一个 SKTileDefinition。然后可以在任何位置将此图 block 绘制到 SKTileMapNode 中。此示例遍历所有列和行并设置磁贴。我将 NoiseMap 的尺寸设为 64 x 64，因为这是瓷砖的典型尺寸。

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)
}