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Alright! A big thanks for playing (again). :)

Good job on defeating the giant, I don't think that's easy! And that at the end is indeed a bug. But that was basically the end of the demo anyway, so you could say you beat it. :D

As to your technical questions:

  • The trail behind the player character (and enemy projectiles and other stuff) is a dynamic triangle mesh that is constantly updated. I use a VBO and write to its float buffer on each render, updating position and color of each vertex. It's probably not the most efficient technique, but it works. :) I can share my (very crude) code if you're interested.
  • Yes, that's a fragment shader effect that separates the color channels into red, green and blue and shifts them a bit based on some randomness and time. It also shifts every second pixel line to get that scanline effect. I use these effects very often in the game, for example when you get hit or things explode. Heck, the whole screen gets shifted more the faster you get :D
  • I wrote my own level editor (which I already initially developed for my last game "Nubs Adventure" and upgraded for Rifter). I've already developed a few platformers and realized that it is crucial to have a quick iteration workflow between play-testing the game and changing stuff within the level as well as building it. That's why the level editor is right in the game, just hidden away with a config flag. If you're interested in the level file format, its plain text JSON files you can find in the game folder/archive (assets/maps/). The editor just parses these files, modifies them and writes them back to disk (I cache them in-game though).
  • I'm using a few, some of which I bought. I think the one you mean is this one:

I'm happy to answer further question if you have any! :)

  • I never thought about using a mesh for the trail effect. Thanks for inspiration! :)
  • Is there any chance to share the source code of this shader? It's probably trivial for you, but I don't have much experience with OpenGL programming and that would be a great resource to learn from (surely not only for me) :D
  • Does that mean that there will be a usable level editor in the final release? Would be great to see levels made by community :)
  • This font is absolutely AMAZING :D Also after looking through the game files I found a font called Orbitron. A quick search told me that it has a free license. I will surely use that one in my games then. Thanks :)
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Here's the shader for the glitched font:

Vertex shader:

Fragment shader:

Its not particularly optimized (I should replace the "if" in the fragment shader) or documented but you probably get the gist. :)

Not sure about the level editor. It would take a lot of time to polish it to a state where its usable by anybody but me :D I have basically no GUI and rely almost solely on keyboard shortcuts. Not exactly intuitive ;)