From Desktop to Browser: Crafting Browser-Native Game Engine with Webassembly
summary
Shows how a Pygame project becomes a browser game using Pygame with pygbag and WebAssembly compiled via onscriptum and pyodide, producing static HTML/JS bundles and an in-browser virtual filesystem. Demonstrates a working snake demo, claims near‑native performance with frame time halved (6.3 → ~3.1), particle update rate doubled, and CPU use dropping from 95% to 45%. Explains async game loops, flip vs blit, asset packaging, and that the browser build runs successfully.
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chapters (12)
- 0:00Browser-native game engines
- 1:09What is WebAssembly
- 3:57Python vs WebAssembly flow
- 6:44Performance gains
- 8:29Python to WebAssembly with Pyodide
- 11:38Pyodide basics
- 14:51Pygame fundamentals
- 19:28Pygame game loop
- 24:29Pigbag for web
- 26:56Adapting code for Pigbag
- 30:28Snake game with Pigbag
- 31:30Summary and Q&A
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