F·W·K

3D game framework in C, with Luajit and Python bindings now.
Archived repo. Development moved to https://github.com/r-lyeh/FWK

Goals

• C++. C.
• Fast. Naive.
• Modern. Simple.
• Full featured. Small.
• Rich build system. Single file.
• Royaltie fee. Free and unlicensed.

Features ᕦ(ᐛ)ᕤ

• Pipeline: configurable and integrated asset pipeline.
• Embedded: single-file header, all dependencies included.
• Projects: Visual Studio, XCode, Ninja, gmake.
• Compiler: MSVC, MINGW64, TCC, GCC, clang, clang-cl and emscripten.
• Linkage: Both static linkage and dynamic .dll/.so/.dylib support.
• Platform: Windows, Linux and OSX. Partial HTML5/Web support.
• DS: hash, sort, array/vector, map, set.
• Math: rand, noise, ease, vec2/3/4, mat33/34/44, quat.
• Geometry: ray, line, plane, aabb, sphere, capsule, triangle, poly and frustum.
• Window: windowed, soft/hard fullscreen, msaa, icon, cursor handling.
• Input: keyboard, mouse and gamepads.
• Script: Lua scripting, Luajit bindings.
• Network: downloads (HTTPS) and sockets (TCP/UDP).
• AI: Swarm/Boids.
• UI: button, list, slider, toggle, checkbox, editbox, dialog, color, image, menu, window, notify...
• Font: TTF, OTF and TTC. Basic syntax highlighter. Glyph ranges. Atlasing.
• Localization/I18N: XLSX and INI. Unicode.
• Image: JPG, PNG, BMP, PSD, PIC, PNM, ICO.
• Texture: KTX/2, PVR, DDS, ASTC, BASIS, HDR, TGA.
• Texel: Depth, R, RG, RGB, RGBA, BC1/2/3/4/5/6/7, PVRI/II, ETC1/2, ASTC.
• Audio: WAV/FLAC, OGG/MP1/MP3, FUR, MOD/XM/S3M/IT, SFXR and MID+SF2/SF3.
• Video: MP4, MPG, OGV, MKV, WMV and AVI. Also, MP4 recording with MPEG-1 fallback.
• Model: IQM/E, GLTF/2, GLB, FBX, OBJ, DAE, BLEND, MD3/5, MS3D, SMD, X, 3DS, BVH, DXF, LWO.
• Render: PBR (metallic-roughness) workflow.
• Render: Cubemaps, panoramas and spherical harmonics. Rayleigh/Mie scattering.
• Render: Post-effects (SSAO,FXAA1/3,CRT,Contrast,Grain,Outline,Vignette...).
• Render: 3D Anims, skeletal anims, hardware skinning and instanced rendering.
• Render: 3D Debugdraw, batching and vectorial font.
• Render: 2D Sprites, spritesheets, AA zooming and batching.
• Render: 2D Tilemaps and tilesets: TMX, TSX.
• Compression: DEFLATE, LZMA, LZ4, ULZ, BALZ, BCM, CRUSH, LZW3, LZSS and PPP.
• Virtual filesystem: ZIP, PAK, TAR and DIR.
• Level data: JSON, JSON5, SJSON, XML, INI.
• Disk cache.
• Scene handling.
• Profiler, stats and leaks finder.
• Editor (wip).
• Documentation (wip).

Hello FWK

#include "fwk.h" // Minimal C sample
int main() {
    window_create(75.0, 0); // 75% size, no extra flags
    while( window_swap() && !input(KEY_ESC) ) { // game loop
        puts("hello FWK from C!");
    }
}

#include "fwk.h" // Minimal HTML5 sample
void render(void *arg) {
    if( !input(KEY_ESC) ) puts("hello FWK from HTML5!");
}
int main() {
    window_create(75.0, 0); // 75% size, no extra flags
    window_loop(render, NULL); // game loop
}

local fwk = require("fwk") -- Minimal Lua sample
fwk.window_create(75.0,0) -- 75% size, no extra flags
while fwk.window_swap() and fwk.input(fwk.KEY_ESC) == 0 do -- game loop
    print("hello FWK from Lua!")
end

Quickstart

• Double-click MAKE.bat (Win) or sh MAKE.bat (Linux/OSX) to compile everything.
• MAKE.bat sln (Win) or sh MAKE.bat sln (Linux/OSX) to generate solutions/makefiles.
• MAKE.bat help (Win) or sh MAKE.bat help (Linux/OSX) for a bunch of options.
• MAKE.bat hello.c (Win) or sh MAKE.bat hello.c (Linux/OSX) to build a single executable.
• Alternatively,

echo win/vc       && cl hello.c
echo win/clang-cl && clang-cl hello.c
echo win/tcc      && tcc   hello.c -m64
echo win/mingw    && gcc   hello.c -lws2_32 -lwinmm -ldbghelp -lole32 -luser32 -lgdi32 -lcomdlg32
echo win/clang    && clang hello.c -lws2_32 -lwinmm -ldbghelp -lole32 -luser32 -lgdi32 -lcomdlg32
echo linux        && cc  hello.c -lm -ldl -lpthread -lX11
echo linux/tcc    && tcc hello.c -lm -ldl -lpthread -lX11 -D__STDC_NO_VLA__
echo osx          && cc -ObjC hello.c -framework cocoa -framework iokit -framework audiotoolbox

Cook

• Most asset types need to be cooked before being used in your application. Some other assets like .png do not.
• Cooked assets will be written into .zipfiles close to your executable, and mounted before entering game loop.
• Cooked .zipfiles and your executable are the only required assets when releasing your game.
• Cook manually your assets by invoking supplied tools/cook standalone binary.
• Cook automatically your assets by just playing your game: a runtime cook is already embedded into your binary.
  • In order to achieve this, ensure the tools/ folder is close to your executable.
  • This folder contains all the related binaries to perform any asset conversion plus the cookbook to do so.

Extra tips

• Any ico/png file named after the executable name will be automatically used as app icon.
• Similar to the ico/png case above, the cooked .zipfiles can be named after the main executable as well.
• Dropped files into game window will be imported & saved into import/ folder.
• Update the gamepad controller database by upgrading the gamecontrollerdb.txt file.
• Depending on your IDE, you might need to browse to engine/split/ sources when debugging FWK.
• Cook assets on demand, as opposed to cook all existing assets on depot, by using --cook-on-demand flag.
• Linux/OSX users can optionally install wine and use the Windows tools instead (by using --cook-wine flag).
• Disable automatic cooking by using --cook-jobs=0 flag (not recommended).
• Generate a project solution by dropping engine/fwk.h, fwk.c and fwk files into it, or MAKE.bat sln.
• Much faster builds by typing MAKE.bat tcc (Win/Linux). Beware: compiler has no thread-locals support.

Bindings

• Luajit: Luajit bindings are provided in the auto-generated fwk.lua file.
• Python: Python bindings are provided in the auto-generated fwk.py file.
• Nelua: Nelua bindings provided by Rabia Alhaffar.

Credits (Artwork + demos)

• DavidLam, for tokamak physics engine (ZLIB).
• Dean Evans + Raijin, for the Map song (c).
• FMS_Cat, for nicest VHS/VCR shader around (MIT).
• Goblin165cm, for witch 3D model (CC BY 4.0).
• ID Software and David St-Louis, for PureDOOM (Doom License).
• Miloslav Číž, for Anarch (CC0).
• Nanofactory, for kgirls01 3D model (CC BY-NC-ND 4.0).
• Quaternius, for the lovely 3D robots (CC0).
• RottingPixels, for castle-tileset (CC0).
• Rxi, for lovely sprites & cats demo (MIT).
• Tom Lewandowski, for his MIDI recordings (c).
• wwwtyro, for nicest rayleigh/mie scattering shader around (CC0).

Credits (Tools)

• Aaron Barany, for cuttlefish (APACHE2).
• Arseny Kapoulkine, for pugixml (MIT).
• Assimp authors, for assimp (BSD3).
• Bernhard Schelling, for tml.h (Zlib) and tsf.h (MIT).
• Christian Collins, for GeneralUser GS soundfont (PD).
• ffmpeg authors, for ffmpeg (LGPL21).
• Imagination, for pvrtextoolcli (ITL).
• Krzysztof Gabis, for split.py/join.py (MIT).
• Lee Salzman, for iqm.cpp (PD).
• Martín Lucas Golini, for emscripten-fs.html (CC0).
• Mattias Gustavsson, for mid.h (PD).
• Michael Schmoock, for lcpp (MIT).
• Morgan McGuire, for markdeep (BSD2).
• Olivier Lapicque, Konstanty Bialkowski, for libmodplug (PD).
• Polyglot Team, for polyglot gamedev (CC0).
• Tildearrow, for Furnace (GPL2).
• Tomas Pettersson, for sfxr (PD).
• Tor Andersson, for assiqe.c (BSD).

Credits (Runtime)

• Barerose, for swrap (CC0).
• Camilla Löwy, for glfw3 (Zlib).
• Dave Rand for ppp (PD).
• David Herberth, for glad generated code (PD).
• David Reid, for miniaudio (PD).
• Dominic Szablewski, for pl_mpeg (MIT).
• Dominik Madarász, for json5 parser (PD).
• Eduard Suica, for tlse (PD).
• Gargaj+cce/Peisik, for Foxotron/PBR shaders (UNLICENSE).
• Guillaume Vareille, for tinyfiledialogs (ZLIB).
• Haruhiko Okumura for lzss (PD).
• Igor Pavlov for LZMA (PD).
• Ilya Muravyov for bcm, balz, crush, ulz, lz4x (PD).
• Jon Olick, for jo_mp1 and jo_mpeg (PD).
• Joonas Pihlajamaa, for JUnzip library (PD).
• Juliette Focault, for the generated MD header (ZLIB).
• Lee Salzman, for IQM spec & player (PD).
• Lee Salzman, V.Hrytsenko, D.Madarász, for enet (MIT).
• Libtomcrypt, for libtomcrypt (Unlicense).
• Lua authors, for Lua language (MIT).
• Mārtiņš Možeiko, for A* pathfinding (PD).
• Mattias Gustavsson, for thread.h and https.h (PD).
• Micha Mettke, Chris Willcocks, Dmitry Hrabrov, for nuklear (PD).
• Michael Galetzka, for swarmz (UNLICENSE).
• Omar Cornut, vaiorabbit, for tables of unicode ranges (MIT-0).
• Rabia Alhaffar, for ice_batt.h (PD).
• Rich Geldreich, for miniz (PD).
• Ross Williams for lzrw3a (PD).
• Samuli Raivio, for bq_websocket (PD).
• Sean Barrett, for stb_image, stb_image_write, stb_sprintf, stb_truetype and stb_vorbis (PD).
• Sebastian Steinhauer, for sts_mixer (PD).
• Stan Melax, Cloud Wu, for polychop C algorithm (PD).
• Stefan Gustavson, for simplex noise (PD).
• Tor Andersson, for xml.c (PD).
• Vassvik, for mv_easy_font (Unlicense).
• Special thanks to @ands, @barerose, @datenwolf, @evanw, @glampert, @krig, @sgorsten and @vurtun for their math libraries (PD,CC0,WTFPL2,CC0,PD,CC0,Unlicense,PD).

Unlicense

This software is released into the public domain. Also dual-licensed as 0-BSD or MIT (No Attribution) for those countries where public domain is a concern (sigh). Any contribution to this repository is implicitly subjected to the same release conditions aforementioned.

Links

Still looking for alternatives? amulet, aroma, astera, blendelf, bullordengine, candle, cave, chickpea, corange, cute, dos-like, ejoy2d, exengine, gunslinger, hate, island, juno, l, lgf, limbus, love, lovr, mini3d, mintaro, mio, olive.c, opensource, ouzel, pez, pixie, punity, r96, ricotech, rizz, tigr, yourgamelib