I am finish

Finishings

Added a skybox. The engine doesn't support proper skyboxes, but you can always make a 200 meter wide cube model. Also sounds (they were very easy actually). I already uploaded the finishing version.

Polishings

Added a flinching animation to the moshkis. The animation system only supports additive animation mixing, which means that it's really difficult to create good animations that need to be mixed together, so I might need to change how the animation mixing works, but other than that, it's okay. Also made the gun animations play a little faster. It think the game as it is right now is more or less finished.

Conclusions

While creating levels in the Trenchbroom editor is a lot faster than in Blender, the way I had to do it involved tedious normal vector fixes and the splitting up of models that had too many materials. Probably will implement some kind of direct importer for my engine.

Creating the game was a very good way to test both usefulness of my engine and also finding a lot of bugs in it.

I think that I have created a very basic, but usable engine. Large parts of it will still need to be refactored and thoroughly tested, but at least now I know what I am doing and can stop doing everything by experiment and start to plan ahead.