如何在Sprite Kit（Swift）中更改Sprite節點的大小以適合不同的屏幕

Question

我正在創建一個游戲，並且快要完成了，但是我遇到的一個令人煩惱的問題是我的游戲無法適合iPhone 5屏幕。 我使用過尺寸類，將比例尺設置為縱橫比填充，甚至嘗試過調整尺寸填充，但它不適用於iPhone5。它適用於所有其他屏幕尺寸（iPhone 4s除外，因為我不支持它），包括iPad。 除了尺碼等級，還有其他選擇嗎？ 我是否需要以編程方式更改圖像？ 如果是這樣，我將如何在Sprite Kit中進行操作？

Answer 1

您可以執行的一種方法是檢測用戶使用的設備，然后更改變量以適應該設備。

這是使用UIDevice（）的擴展，您可以檢測用戶所在的設備：

public extension UIDevice {

var modelName: String {
    var systemInfo = utsname()
    uname(&systemInfo)
    let machineMirror = Mirror(reflecting: systemInfo.machine)
    let identifier = machineMirror.children.reduce("") { identifier, element in
        guard let value = element.value as? Int8 where value != 0 else { return identifier }
        return identifier + String(UnicodeScalar(UInt8(value)))
    }

    switch identifier {
    case "iPod5,1":                                 return "iPod Touch 5"
    case "iPod7,1":                                 return "iPod Touch 6"
    case "iPhone3,1", "iPhone3,2", "iPhone3,3":     return "iPhone 4"
    case "iPhone4,1":                               return "iPhone 4s"
    case "iPhone5,1", "iPhone5,2":                  return "iPhone 5"
    case "iPhone5,3", "iPhone5,4":                  return "iPhone 5c"
    case "iPhone6,1", "iPhone6,2":                  return "iPhone 5s"
    case "iPhone7,2":                               return "iPhone 6"
    case "iPhone7,1":                               return "iPhone 6 Plus"
    case "iPhone8,1":                               return "iPhone 6s"
    case "iPhone8,2":                               return "iPhone 6s Plus"
    case "iPhone8,4":                               return "iPhone SE"
    case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
    case "iPad3,1", "iPad3,2", "iPad3,3":           return "iPad 3"
    case "iPad3,4", "iPad3,5", "iPad3,6":           return "iPad 4"
    case "iPad4,1", "iPad4,2", "iPad4,3":           return "iPad Air"
    case "iPad5,3", "iPad5,4":                      return "iPad Air 2"
    case "iPad2,5", "iPad2,6", "iPad2,7":           return "iPad Mini"
    case "iPad4,4", "iPad4,5", "iPad4,6":           return "iPad Mini 2"
    case "iPad4,7", "iPad4,8", "iPad4,9":           return "iPad Mini 3"
    case "iPad5,1", "iPad5,2":                      return "iPad Mini 4"
    case "iPad6,3", "iPad6,4", "iPad6,7", "iPad6,8":return "iPad Pro"
    case "AppleTV5,3":                              return "Apple TV"
    case "i386", "x86_64":                          return "Simulator"
    default:                                        return identifier
    }
}

那么你可以像這樣使用它

if UIDevice.modelName == "iPhone 4" {
    theNode.xScale = whatever
    theNode.yScale = whatever
}