Developer Diary #2: Intersection soup
Since last time, I managed to make cars follow multisegment roads properly!
One interesting problem was that cars suddenly sped up and slowed down in narrow corners, since their linear progress on a lane bundle segment was measured just relative to the lane bundle center line. On the outermost lanes of roads this was particularly noticeable.
So I created all kinds of geometry code to convert between lengths and offsets on different adjacent lanes - and made sure that car progress and velocity were always measured relative to the lane they were actually on.
All of that works now.
Then, I started working on detecting lane overlaps on intersections - something that I already implemented once for the old road system.
So clear what's happening!
But seriously, it looked kinda fine at that stage.
I wanted to make sure however, so I implemented a module for displaying arbitrary paths for debug purposes.
This time, connections on the intersection are drawn as white lines, merging overlaps in orange, crossing overlaps in red:
Well, still kinda a little bit broken, turns out!
And that's where I had to stop today, since it is late night now and I should get sleep :)
Let me know what you think!