Over the last semester, I've been working on a game engine.  It was meant to be a personal challenge for myself,  to see if I could make my own game engine with some bare materials.  Those being C++, OpenGL, and Qt.  I wanted it to be more though.  Seeing as most professional game engines these days (developed by community or company) feature some sort of scripting engine, I decided to make my own scriptable game engine.

After some troubles with trying to embed Python & Lua inside of a C++ dummy projects, I discovered this thing called ChaiScript.  The tl;dr is that it's a scripting language for C++ that's dead simple to use.  I decided to use it for my project since it gave me a no hassle way to add scripting features to my project.  It was dead simple as "include the headers," and "give me a pointer to your C++ function/variable, and tell me what you want to call it."

Of course with simplicity, comes some cost.  One of the first things for example are the long build times.  If you statically include ChaiScript (which is the simplest way of using it), expect to take a small break when compiling.  This can be easily remedied by dynamically linking ChaiScript's standard library and including a .dll/.so file alongside your executable.  I did this when developing Masala.

I also ran into performance issues with ChaiScript.  At the current version (5.8.1), the language is executed using an Abstract Syntax Tree.  While this is necessary for parsing a language, using it to run code is much slower than it could be.

Enough about ChaiScript, let's talk about the engine itself, Masala!

Masala was built using C++ (14), Qt 5.x, ChaiScript, and OpenGL.  I had the goal of trying to create a reusable game engine where you write all of your logic inside of ChaiScript files.  It follows a very lose XNA/MonoGame-like pattern.  Right now it features:

• 2D
• Cross platform (Built with Linux)
• Featureful sprite object (with animations!)
• Tilemaps (Flare maps)
• Basic sound effects
• Keyboard Input
• Interactive debugging terminal

It's pretty simple.  I mean, very simple.  I don't think it stands up well to other engines that are out there, so I really consider it to be an experiment in using ChaiScript for a game engine.

I implemented two simple games, one being a clone of the classic Atari Pong:

And another more original one I've dubbed "Grab n' Dodge:"

I would say that I accomplished my goal in writing a game engine.  Something that I have never done.  As for the cross-platform part, I was able to get the code to compile on OS X and Windows, but had some trouble upon running it.  One of my friends said that he was able to get it working on OS X, but I haven't seen the proof.

If anyone wants to help me getting this running on Windows or OS X, contact me.  Since it was made using cross platform tools, it should work on all of the OSes Qt & OpenGL support.

And last, you can find the official code repository over here on GitLab.  It's GPLv3 licensed.

It's been almost a year since I posted something.

The post important thing is that I've graduated from RIT, with a B.S. in Computer Science. It was a very good program and let me meet some great people.

Second, I had to put work on Blit on hiatus due to an employment agreement that I had last year. I had a 400 day streak going on the last day, which was pretty cool. Even though I could have started to work on it again a few months ago, I chose to pursue some other projects I wanted to get out of my head. I'll figure out the future of Blit soon enough.

Back around mid to late July in 2014 I set out to create Blit. One year on now (as of last Wednesday), I've made a lot of progress from practically nothing. Thinking back I ask myself “why did I want to make Blit?”

I've made many other projects before. Some of them successes whereas others were really failures (cough buzz cough). Those projects had something in common. They were short, small, and contained. When I look back on all of the stuff that I've made, I noticed that there was nothing that I could call a “grand,” or “large,” project. I wanted something that I could call a major project that I built. More importantly I wanted to know how to manage a larger project; something I've never done before.

So I set a goal for myself: “Make something large. Something that you can never really call 'complete,' but work on it for an entire year.” That's what I did. I had nothing more than a silly GitHub streak to motivate me. It now says “371 days.” There were a few days where all I did was just update a TODO file, add some extra documentation, or ones that I didn't want to work on it at all (but I did anyways).

Blit still isn't really what I originally imaged it to be. Some sort of 2D Animation solution for pixel art and larger things (and hopefully pencil testing too). And I'm still not sure 100% what I want out of it. I consider what I've done so far to be nothing more than a prototype for a future vision.

I've met my goal of “work on something for a year,” but I plan to still chug along with it until I feel that I'm done. It's been fun so far.

Here are some stats:

• 371 days of continuous development (avg. one hour per day, more on the weekends)
• 75,868 additions / 47,902 deletions
• 7,846 lines of code (core application, mostly C++ w/ Qt)
• 2,887 commits
• 352 tickets
• 247 closed
• 105 open
• 43 more issues until the next one
• 12 (active) branches
• 1 (and a 1/2) milestones completed
• 1 contributor (me)

This is what my network looks like.

Cheers.

I was planning on doing another post after Imagine RIT, but I've been pretty busy. I was able to display off MEGA_MATRIX there along with a small fork of Blit where you can create animations then upload them to the device. It's was pretty popular with the kids. I'll be posting some of the creations soon enough.

Speaking of Blit I have been still working on it daily since the first release back in February. The big thing that I had to do was refactor the underlying monolithic Animation module into a more flexible and reusable system.

Some small stats:

• 3.5 months
• +1,100 lines of code (exactly)
• 655 commits
• 51 tickets (felt like 151)

I've also done a few other things like add a shape tool, line tool, fill tool (you know, the basics), and a few icons. There are many other features that I want to add too like exporting to GIF and video files. I think I'll be able to get them done for P-2.

It's been a while since my last update. In that time, I've been working on a few projects here in there. As for MEGA_MATRIX, I've added support for the Arduino MEGA and have been able to do a few proof of concept stuff for the Raspberry Pi. The Pi version right now can get a whopping 20K FPS in the native C version! The Pi version isn't too functional right now, but expect soon enough. Link to source on GitHub.

Since the end of the summer, I've been working on my own Animation tool. It's not much right now, but you can find Linux and OS X binaries right over here. Here's the first thing I was able to make with it, a bouncing ball: