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Asked:2020-09-22 11:30:52 +0000 UTC2020-09-22 11:30:52 +0000 UTC

用纹理填充 SKShapeNode

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是否可以用 1 比 1 比例的纹理填充 SKShapeNode 并重复直到填充整个 SKShapeNode？我尝试使用fillTexture，但它只是拉伸纹理，但它需要精确重复，创建一个没有缩放的无缝纹理。

ios

1 个回答

  1. Best Answer

    在 obzhS 上（记住这是 上的一个类别SKShapeNode）

    - (void)setTiledFillTextureWithImageName:(NSString*)imageName tileSize:(CGSize)tileSize
{
    CGFloat targetDimension = fmax(self.frame.size.width, self.frame.size.height);
    CGSize targetSize = CGSizeMake(targetDimension, targetDimension);
    UIImage *targetRef = [UIImage imageNamed:imageName];

    UIGraphicsBeginImageContext(targetSize);
    CGContextRef contextRef = UIGraphicsGetCurrentContext();
    CGContextDrawTiledImage(contextRef, CGRectMake(0, 0, tileSize.width, tileSize.height), targetRef.CGImage);
    UIImage *tiledTexture = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    self.fillTexture = [SKTexture textureWithImage:tiledTexture];
}

    并迅速

    extension SKShapeNode {
    func setTiledFillTexture(imageName: String, tileSize: CGSize) {
        let targetDimension = max(self.frame.size.width, self.frame.size.height)
        let targetSize = CGSizeMake(targetDimension, targetDimension)
        let targetRef = UIImage(named: imageName).CGImage

        UIGraphicsBeginImageContext(targetSize)
        let contextRef = UIGraphicsGetCurrentContext()
        CGContextDrawTiledImage(contextRef, CGRect(origin: CGPointZero, size: tileSize), targetRef)
        let tiledTexture = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()

        self.fillTexture = SKTexture(image: tiledTexture)
    }
}
    • 1

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