Web port

[midzer]

Hi,

great classic game :)

I've ported it to the web several days ago in my fork https://github.com/midzer/nxengine-evo/tree/emscripten

You can play the result directly here https://midzer.de/wasm/cavestory/

Would love to contribute back, if you're interested.

Have a nice week
midzer

[isage]

Sure, but:

1. make it separate platform (-DPLATFORM=web)
2. https://github.com/midzer/nxengine-evo/blob/emscripten/EMSCRIPTEN.md#link can't you do that with cmake (making it separate platform should help with that too)?

[isage]

Few other notes:

1. Quit should be probably removed from menus on web (it doesn't make sense there)
2. Gamepad doesn't work
3. Saves/settings don't persist (due to default MEMFS, using IDBFS should probably solve that)