2.3

Hello again! I just published a big update for this game. I've been updating Factory Town 2 (which is 20% off this week, hint hint, see below), and realized a lot of these optimizations and improvements could be back-ported to the original game:Boats now can navigate straight across the ocean, no more weird zig-zag paths. They will more reliably reach distant targets, and performance for boat pathfinding is improved. They will also smoothly change direction as they navigate through the water.Airship pathfinding has also improved, and they will also more more smoothly and can find paths around large, tall obstacles instead of flying awkwardly over them.All kinds of various performance improvements: removed unnecessary physics calculations, unnecessary transform updates for out-of-view units...