Using CGContext to display a sprite sheet iPhone
- by Mike
Hello,
So I have a spritesheet in png format, and have already worked out the coordinates for what I want to display. I'm trying to create a method that will return a UIImage when passed the location information on the spritesheet. I'm just not sure how to use the CGContext stuff along with the the coordinates to return an UIImage.
I was looking to CGContextClipToRect because I think that is the way to do it, but I just can't seem to get it to work.
Something like this
CGSize size = CGSizeMake(xSize, ySize);
UIGraphicsBeginImageContext(size);
//CGContextClipToRect(spriteSheet.size, imageRect);
[spriteSheet drawAtPoint:CGPointMake(xPos, yPos)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return scaledImage;
returns only what is in the size Context. I need to be able to "move" this size window around the spritesheet if that makes sense.
Any help would be appreciated.
Thanks,
Mike
