如何从 SKSpriteNode 或 SKTexture 获取像素颜色? [英] How to get pixel color from SKSpriteNode or from SKTexture?

问题描述

我想在游戏地图上精确选择我的对象.对象是一个精灵，它周围有一些透明像素，我想测试这些透明像素的触摸位置.有什么线索吗?

I want to get precise selection of my object on game map. Object is a sprite with which has some transparent pixels around and I want to test touch location for these transparent pixels. Any clue?

推荐答案

在 Sprite Kit 中，您无权访问纹理数据.

In Sprite Kit you don't have access to texture data.

相反，您必须从图像创建位掩码，例如通过将图像加载为 UIImage 或 CGImage 并扫描所有非透明像素.

Instead you'd have to create a bit mask from the image, for example by loading the image as UIImage or CGImage and scanning for all non-transparent pixels.

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