How to Combine SKTextures

问题

I'm looking for a way to combine an SKTexture on top of another SKTexture, similar in appearance to how a textured SKSpritenode would look when adding another textured SKSPritenode as a child. I need it to be a single SKTexture as an end-product please.

回答1:

The short of it is that you can't do it. A SKSpriteNode can only ever take one SKTexture. The only way to do this within the SpriteKit framework is to add children on top of the parent node.

Another way is to use a series of images and combine them before adding the final product as a texture to your sprite node.

CGSize mergedSize = CGSizeMake(maxWidth, maxHeight); // <- use the largest width and height for your images if they are different sizes
UIGraphicsBeginImageContextWithOptions(mergedSize, NO, 0.0f);
[textureImage1 drawInRect:CGRectMake(0, 0, maxWidth, textureImage1.size.height)];
[textureImage2 drawInRect:CGRectMake(0, 0, 75, textureImage2.size.height)];
// ... add any additional images ...
UIImage *mergedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

self.texture = [SKTexture textureWithImage:mergedImage];

Make sure you have your SKSpriteNode size property set to (maxWidth, maxHeight) so nothing gets clipped.

来源：https://stackoverflow.com/questions/23091001/how-to-combine-sktextures