PKG Add pygame-ce

[ryanking13]

Description

Resolve: #289

Adds pygame-ce 2.4.1.

Demo: https://ryanking13.github.io/pyodide-pygame-demo/

Known Issues

• freetype doesn't work very well
• some audio related APIs are not supported (Emscripten does not implement some APIs)
• sdl2_gfx functions doesn't work very well

Porting existing pygame-based codes

Following changes are required to run the existing pygame code in the Pyodide.

1. set the canvas to draw on

This is already described in the docs.

2. yield inside the infinite loop

Usually, pygame codes looks like this:

def run_game():
    while True:
        do_something()
        draw()
        pygame.timer.delay(...)

In Pyodide, this needs to be changed to the following:

import asyncio
async def run_game():
    while True:
        do_something()
        draw()
        await asyncio.sleep(...)

so that the browser can take control and draw animations on the canvas.

Checklists

• Add a CHANGELOG entry
• Add / update tests
• Add new / update outdated documentation

[ryanking13]

This comment is true for pygame-web but not true for Pyodide.

cc: @pmp-p

[pmp-p]

i'm making pygame-community/pygame-ce#2748 so both pygame-web and pyodide do not require patching

[ryanking13]

Thank you so much! I don't know anything about pygame internals, so I really appreciate the various things you do for WASM support.

[hoodmane]

Agreed, we appreciate all the work you've done on this @pmp-p -- it seems like quite a lot of effort.

[hoodmane]

Thanks @ryanking13 and @pmp-p! Looks good to me.

[pmp-p]

note that pygame-ce/Panda3D can also render directly in Terminal( like xterm.js with IIP iterm2 image protocol ) with no canvas/webgl requirements at all ( gpu implemented in software via WASM )

( screenshot of Panda3D/Python 3.13 WASI running via wasmtime in WezTerm )