SpriteKit颠倒绘制文本

import SpriteKit

class CustomScene: SKScene {
    override func draw(_ rect: CGRect) {
        // 创建一个位图上下文
        UIGraphicsBeginImageContextWithOptions(rect.size, false, 0)
        guard let context = UIGraphicsGetCurrentContext() else { return }
        
        // 颠倒绘制
        context.textMatrix = CGAffineTransform(scaleX: 1, y: -1)
        context.translateBy(x: 0, y: -rect.size.height)
        
        // 设置文本属性
        let font = UIFont.systemFont(ofSize: 20)
        let attributes: [NSAttributedString.Key: Any] = [
            .font: font,
            .foregroundColor: UIColor.white
        ]
        
        // 绘制文本
        let text = "Hello, SpriteKit!"
        let attributedText = NSAttributedString(string: text, attributes: attributes)
        attributedText.draw(at: CGPoint(x: 10, y: 10))
        
        // 获取绘制的图像
        guard let image = UIGraphicsGetImageFromCurrentImageContext() else { return }
        UIGraphicsEndImageContext()
        
        // 创建纹理并显示
        let texture = SKTexture(image: image)
        let spriteNode = SKSpriteNode(texture: texture)
        spriteNode.position = CGPoint(x: rect.midX, y: rect.midY)
        addChild(spriteNode)
    }
}

// 在场景中显示文本
let scene = CustomScene(size: CGSize(width: 400, height: 200))
let view = SKView(frame: CGRect(x: 0, y: 0, width: 400, height: 200))
view.presentScene(scene)