Colors CCSprite颜色混合类似于UIImage上的kCGBlendModeColor

我试图在雪碧图像上叠加颜色，并对如何将颜色与雪碧混合有疑问。我使用了下面的

updateImageTint

例程在

UIImage

上叠加颜色，输出就是我所希望的。该图像保持白色，但灰色的阴影会被指定的覆盖颜色饱和或烧焦。param

kCGBlendModeColor

似乎可以实现标准

UIImage

颜色混合

然而，我尝试使用精灵来获得相同的效果，但是颜色看起来就像是整个图像、白色区域和所有区域上的颜色。我想这是一个混合问题。是否有一组参数可以传递给setBlendFunc以获得与下面的

updateImageTint

方法匹配的输出

我试过了…但是运气不好

[spriteToAdjust setBlendFunc: (ccBlendFunc) { GL_ONE, GL_ONE }];
[spriteToAdjust setColor:ccc3(red*255.0,green*255.0,blue*255.0)];

-(UIImage*) updateImageTint:(UIImage*) img toColor:(UIColor*) toColor
{

// begin a new image context, to draw our colored image onto
UIGraphicsBeginImageContext(img.size);

// get a reference to that context we created
CGContextRef context = UIGraphicsGetCurrentContext();

// set the fill color
UIColor *color = toColor;
[color setFill];

// translate/flip the graphics context (for transforming from CG* coords to UI* coords
CGContextTranslateCTM(context, 0, img.size.height);
CGContextScaleCTM(context, 1.0, -1.0);

// set the blend mode to color burn, and the original image
CGContextSetBlendMode(context, kCGBlendModeColor);
CGRect rect = CGRectMake(0, 0, img.size.width, img.size.height);
CGContextDrawImage(context, rect, img.CGImage);

// set a mask that matches the shape of the image, then draw (color burn) a colored rectangle
CGContextClipToMask(context, rect, img.CGImage);
CGContextAddRect(context, rect);
CGContextDrawPath(context,kCGPathFill);

// generate a new UIImage from the graphics context we drew onto
UIImage *coloredImg = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

//return the color-burned image
return coloredImg;
}