Explore the implementation of Trio-like structured concurrency in a game engine through this PyCon US talk. Discover how Daniel Pope reimplemented Trio concepts in Wasabi2D, simplifying game logic tasks and making concurrent programs easier to reason about. Learn about concurrency in video games, structured concurrency with game logic examples, and parallels between I/O-based concurrency tasks and those in video games. Gain insights into writing games in Wasabi2D and compare the differences between Wasabi2D and Trio's implementation of structured concurrency concepts. Understand which elements are foundational to structured concurrency and which are specific to Trio's problem space. Dive into topics such as coroutines, nurseries, task groups, event objects, and the differences between discrete and continuous time in game development.
Overview
Syllabus
A Standard PyGame Tutorial
Hard-coded game loop
Scenegraph
Taking the concurrent view
Update functions do busy work
Coroutines to the rescue!
Unity Game Engine
Scratch has implicit coroutines
Subtasks are launched through nurseries
Asyncio Task Group arriving in 3.11
Enemies that come in waves
Each ship is a bundle of tasks
Awaiting input
Outer cancellation implies inner cancellation
Event Objects
Synchronisation using events
Event loops
Discrete vs continuous time
Taught by
PyCon US
