Last week we mentioned the change to make biters not collide with each other,
but that wasn’t the only biter-related update we released this past
week. Somewhat coincidentally, this week’s updates have included something I’d
been working on for a few weeks before – an upgrade to the enemy pathfinding
system.

Pathfinding

When a unit wants to go somewhere, it first needs to figure out how to get
there. That could be as simple as going straight to its goal, but there can be
obstacles – such as cliffs, trees, spawners, player entities – in the way. To
do that, it will tell the pathfinder its current position and the goal
position, and the pathfinder will – possibly after many ticks – reply with a
path, which is simply a series of...