build linear gesture interface for mnolth

I've got a linear gesture interface that works pretty well in VoxBox, and I'd like to be able to use it with mnolth. I also want to be able to populate gesture from within lua. To do this, I'll need to build out an interface in rust, export a C interface, and write some mnolth glue code (mnodes).

mainly doing this so I can compose some of this audio telephone thing using mnolth. Frankly, the Uxn thing in GestVM is a bit cumbersome.... the setup time takes too long.

First, I'll build out the initial interface in Rust, which will wrap the existing linear gesture node with a self contained vector of paths. I'll then write some C-style functions that make it possible to do the following: initialize, append, tick, and destroy. I will make a quick example of this in Rust, which will be a good stopping point.

The next parts involve actually getting this inside of mnolth/mnodes, and creating the glue code there.

Using this as an opportunity to learn how to build a function with proper error handling and testing. I was going to do a more elaborte check validating each "okay" one, but it was less messy just to see it catch errors.

Instead of building on the existing LinearGesture Generator, build a new gesture interface that owns a vector that can grow.

Going to work on the C interface next.

I think I can do that right?

I did a bit of a hack, which was to duplicate "src/lib.rs", make it "src/clib.rs", and then add an example in the Cargo toml file.

Most of the day has been wasted away. Going to try to move quickly on this.

Gotta compose now.

I'll briefly try to defend the notion that it was mostly a good effort. For starters, I got very a convenient linear gesture interface, which required some moderate thinking about design in rust with ownership in mind. Secondly, I got Rust code working in mnolth for the first time, and this is important because it shows that I can leverage what I've done before to boost what I'm working on right now.