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Fixed Rate Pig - A decade later |  |
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David Olofson
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Playing around a bit with Emscripten
(http://kripken.github.io/emscripten-site/), and figured my ancient playable SDL example "Fixed Rate Pig" might be fun in the browser: http://olofson.net/pig/ Source code available; same old, with a few minor tweaks for Emscripten. http://olofson.net/pig/pig-1.1.tar.bz2 Tested in Chrome and Firefox on Linux. There's no SDL_SetClipRect(), so clipping is broken; you can see sprites over the dashboard. And of course, the game logic is still running at 20 fps (deliberately, to demonstrate the interpolation/"tweening"), so controls feel a bit sluggish. -- //David Olofson - Consultant, Developer, Artist, Open Source Advocate .--- Games, examples, libraries, scripting, sound, music, graphics ---. | http://consulting.olofson.net http://olofsonarcade.com | '---------------------------------------------------------------------' _______________________________________________ SDL mailing list http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org |
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Fixed Rate Pig - A decade later | |
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Pallav Nawani
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Looks great.
Was it much trouble to use emscripten to port fixed rate pig to javascript? Pallav Nawani IronCode Gaming Private Limited Website:Â http://www.ironcode.com Twitter:Â http://twitter.com/Ironcode_Gaming Facebook: http://www.facebook.com/Ironcode.Gaming Mobile: 9997478768 On Sun, Oct 12, 2014 at 4:52 AM, David Olofson wrote:
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Fixed Rate Pig - A decade later | |
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David Olofson
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On Mon, Oct 13, 2014 at 7:12 AM, Pallav Nawani wrote:
Thanks! It was quite straightforward, really. You have proper C and C++ compilers, and you're presented with something very much like an OS with SDL and some other useful stuff present, so for a simple SDL application, it's pretty much business as usual. Apart from details like SDL_SetAlpha() not working as expected, and SDL_DisplayFormat() missing (the SDK SDL version is somewhere between 1.2 and 2.0, apparently), the only structural change is that you need to switch from a main loop to event based execution. (See emscripten_set_main_loop().) I'm sure there are quite a few optimizations that can be done, though. Pig is using the legacy SDL 1.2 2D API, and I'd expect there to be a few performance issues in mapping that over the browser APIs, just like when implementing it over OpenGL or similar. Using a WebGL friendly subset of OpenGL is probably the best bet for performance and compatibility - and not just for Emscripten, but when targetting pretty much anything these days. Using the SDL 2.0 2D API would probably be a good alternative too, as it's designed for hardware accelerated targets like OpenGL. -- //David Olofson - Consultant, Developer, Artist, Open Source Advocate .--- Games, examples, libraries, scripting, sound, music, graphics ---. | http://consulting.olofson.net http://olofsonarcade.com | '---------------------------------------------------------------------' _______________________________________________ SDL mailing list http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org |
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Fixed Rate Pig - A decade later | |
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Martin Gerhardy
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Cool. Nice job.
While we are on it, did anyone have a working sdl2 port of one of its games with emscripten? I tried my games recently - and got them working to some extend - but it feels laggy without async io (which I plan to do next for nacl and emscripten). Once I can show something where I am pleased with, I will also post the results here. Regards Martin Am 13.10.2014 um 10:17 schrieb David Olofson:
-- http://www.caveproductions.org http://twitter.com/MartinGerhardy _______________________________________________ SDL mailing list http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org |
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