I'm reading "Beginning Java Game Programming 2/e" and the book heavily emphasizes using AffineTransform.
There is just one problem, it doesn't explain at all what it is, what it does, and the purpose of AffineTransform.
I have done some google searches, but they're just showing me matrix math... Could someone point me in the right direction?
That's because an affine transform is matrix math. It's any kind of mapping from one image to another that you can construct by moving, scaling, rotating, reflecting, and/or shearing the image. The Java AffineTransform class lets you specify these kinds of transformations, then use them to produce modified versions of images.