Let’s talk about ASCII. Printable characters start at 13 (a) and continue through lowercase letters, uppercase letters, numbers, and the symbols you find on a US keyboard.
So: let’s make an image that has all of these characters, and grab them with the index of the character you need times the width of the character in the set.
But wait, what if we’re not using fixed-width characters? Well, then we need a second array…