HS: movement

So I'm now actually at the stage that I can set destinations for squads. For now, they'll go by "public transport" - the end goal here is that they will fly to the city nearest to the target site, and then drive the rest of the way. Yeah, I'm anal like that.

But, for now we'll settle with them taking the airliner direct to the site. I could cheat here and use the movement trail you can see here:

... as, effectively, a progress bar; indeed, it shouldn't really be possible to alter your squad's destination while they are in flight, not until you get your own air fleet. That would mean I could escape having to figure out how to reposition the squad as it flies through the sky, but I really want to add a neat airliner icon onto the movement trail, so that's my next job.

This is going to get increasingly complex, as I now have to build something similar to the QuadRenderer to draw multiple movement "trails", and also the icons for individual conveyances (which I'll refer to as "Conveyances", since that's my top-level moving-quad-icon class, or "blips" for simplicity). This is problematic since every blip will move pretty much every frame! So I don't really know how much benefit there is to precompiling a vertex buffer for every conveyance.