I finally have graphics. These are SDL RectFills that are using random red, green, and blue attributes, and the offset matches the mouse cursor’s position:
I plan on providing a sprite and making sure that there are other sprites in the playing area. I want to detect when your mouse-following sprite hits other sprites, and you will win or lose depending on which you touched.
The part that took me so long to get here was figuring out that I was using the variables incorrectly. Maybe I need more sleep. Or caffeine.