Game programming is a subset of game development and involves the software development of video games. A game programmer is a software engineer who primarily develops the codebase for video games or related tools. Game development involves many disciplines including artificial intelligence, game design, interaction design, game programming/coding, level design, video game art, music, and graphics. Games have a unique structure compared to other software, including startup screens, main menus, loading screens, gameplay loops, and ending credits. The gameplay loop typically involves processing input, updating the game state, and rendering graphics in a continuous cycle.