Cocos2d VS Allegro

As others have pointed out, the biggest difference you're seeing is likely due to the _version_ of OpenGL (and hence GLSL) version. That said, there are still important differences. I'd recommend looking at a comparison between the same shader in a project that supports both OpenGL & OpenGLES. For example, here's a shader from cocos2d-x https://github.com/cocos2d/cocos2d-x/blob/v4/cocos/renderer/shaders/positionColor.vert. Note the only difference in this case is the additional precision qualifier (lowp) for v_fragmentColor. Note too how cocos uses preprocessor macros to handle this, so they don't have to maintain separate shader sources. Depending on your goals, you might be interested in tools like Nvidia cg or nvFX that allow for creating shaders in a dialect agnostic way, but ymmv.

Speaking about markdown files on GitHub, I know that there are some repositories that have very stunning README markdown files, such as this one for Cocos2d-x, whcih includes images in conjunction with text. I might do the same for my repository as well. Considering VS Code have an extension for .md files, this might come in handy when I consider using VS Code to contribute to my game projects.

Here's a simple program using Allegro

For anyone looking for some graphics libraries to start with: * https://www.raylib.com/ * https://github.com/edubart/sokol_gp * https://www.libsdl.org/index.php * https://www.sfml-dev.org/ * https://liballeg.org/

The Allegro egg is accompanied by a couple of examples but no examples showing the use of the audio addon. The Allegro library itself comes with an example showing how to generate a saw wave, but being a C library, the example is, of course, in C. I ported that example to Scheme. I would have contributed the example back to the Allegro egg, but the repo is marked as "archived by the owner" and read-only on GitHub. I've included the example in the repo alongside the rest of the code for this tutorial in case someone finds it useful.

Even fallowing https://github.com/liballeg/allegro5/blob/master/README_android.txt you can't build with the instructions provided most because you will need some things of android ndk to properly build the allegro. Also, this build instructions is for build for build allegro for use in an Android apk.

git clone https://github.com/liballeg/allegro5

I am trying to find the latest version of allegro + DJGPP that I can use to build a game. I found the 4.2 branch of allegro, but I am unsure which version of DJGPP to use to build it.

Factorio was written in C++ with help of Allegro graphic library, it's custom game engine, models are made in Blender, rendered in a 45deg angle to match isometric view. Unity wouldn't handle a game with that scale - it has too many "useless" features for that type of games.

I'm an Allegro 5 (https://liballeg.org) developer. We have a very simple license that simply requires putting the license in your distribution. Factorio has never complied with this.