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我想创建一个场景，我有按钮可以在 SKTileMapNode 内将光标从一个瓷砖移动到另一个瓷砖。.sks我在 Spritekit 场景编辑器的外部文件中创建了一个 10x8 SKTileMapNode 。要将光标位置设置在与磁贴完全相同的位置，我想注册磁贴的特定列和行索引，然后找出他的位置。使用函数numberOfColumns并tileRowIndex给我比numberOfRowsand更高的值tileRowIndex，它们是 10 和 8。由于这个问题，我的光标显示在错误的位置。它甚至没有在任何瓷砖位置上对齐。

class Spielfeld: SKScene {

    var x: Int = 0     // Anzahl Felder in x-Richtung
    var y: Int = 0     // Anzahl Felder in y-Richtung
    var tilemap: SKTileMapNode = SKTileMapNode()
    var up: SKSpriteNode = SKSpriteNode()
    var down: SKSpriteNode = SKSpriteNode()
    var left: SKSpriteNode = SKSpriteNode()
    var right: SKSpriteNode = SKSpriteNode()
    var cursor: SKSpriteNode = SKSpriteNode(imageNamed: "Cursor1Blue")

    override func sceneDidLoad() {
        up = self.childNode(withName: "Up") as! SKSpriteNode
        down = self.childNode(withName: "Down") as! SKSpriteNode
        left = self.childNode(withName: "Left") as! SKSpriteNode
        right = self.childNode(withName: "Right") as! SKSpriteNode

        tilemap = self.childNode(withName: "Tile Map Node") as! SKTileMapNode
        cursor.position = tilemap.centerOfTile(atColumn: 5, row: 5)
        cursor.zPosition = 0.1
        self.addChild(cursor)
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        let touch:UITouch = touches.first! as UITouch
        let positionInScene = touch.location(in: self)
        let touchedNode = self.atPoint(positionInScene)
        print(touchedNode.name!)
        if(touchedNode.name == "Tile Map Node") {
            let map = touchedNode as! (SKTileMapNode)
            print(map.tileColumnIndex(fromPosition: positionInScene))   // higher than 10
            print(map.tileRowIndex(fromPosition: positionInScene))      // higher than 8
            print(map.numberOfColumns)  // 10
            print(map.numberOfRows)     // 8
            print(map)
        }
    }
}
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1 回答 1

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使用tileColumnIndex/获取索引时，tileRowIndex您需要检查平铺地图中的位置。在您的示例中，您给出了场景的位置，这可能不一样，具体取决于瓦片地图的位置。

如果您使用地图中的触摸位置，您应该会返回正确的索引。

let positionInMap = touch.location(in: map)
let column = map.tileColumnIndex(fromPosition: positionInMap)
let row = map.tileRowIndex(fromPosition: positionInMap)

touchesBegan()您示例中的更新版本

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    let touch:UITouch = touches.first! as UITouch
    let positionInScene = touch.location(in: self)
    let touchedNode = self.atPoint(positionInScene)
    if(touchedNode.name == "Tile Map Node") {
        let map = touchedNode as! (SKTileMapNode)
        let positionInMap = touch.location(in: map) // Get the touched position in map
        print(map.tileColumnIndex(fromPosition: positionInMap))
        print(map.tileRowIndex(fromPosition: positionInMap))
        print(map.numberOfColumns)
        print(map.numberOfRows)
        print(map)
    }
}

为确保您的光标在centerOfTile用于定位时与图块对齐，请将其作为子项添加到图块地图中，以确保它们位于同一坐标系上。否则，您必须将必要的偏移量添加到光标位置。

tilemap.addChild(cursor)
于 2019-03-17T04:11:05.103 回答