1.
Introduction
1.1.
History
1.2.
Playful Systems
1.3.
Patterns and Engines
2.
Overview
2.1.
Challenges of Playful Systems
2.2.
Anatomy of a Frame
3.
Input
4.
State
4.1.
Coroutines
4.1.1.
From First Principles
4.1.2.
By Example
4.1.3.
By Comparison
Light
Rust
Coal
Navy
Ayu
The Book of Ajeeb
Playful Systems