iOS UIKit 004: Drawing circle and arcs
You need to coordinate plane, like X and Y things. You also need to know angle measurement in unit degrees and radians. We focus math more than programming - we are making stuff, fun stuff. "if-else" and "loop" are the most important concepts in programming. But we haven't touched them at all, yet.
Book "Drawing shapes":
https://books.apple.com/us/book/drawi...
Book "Making a 24 game":
https://books.apple.com/us/book/makin...
Book "Making a chess game":
https://books.apple.com/us/book/makin...
Book "Making a pulley with a fixed wheel"
https://books.apple.com/us/book/makin...
Book "Making a Java Chinese Chess game":
https://books.apple.com/us/book/makin...