Multiplayer futuristic F2P first person shooter with a unique blend of modern and classic shooter elements.
Got sentries working.
They now target enemy players and shoot at them relentlessly >:3
This was done by sorting players into an octree and querying the octree for nearby players, then pruning that list by some criteria (not on my team, not outside my field of view, nothing blocking line of sight, etc), sorting by distance, and finally picking the nearest target and switching over to the Attack state.
God this is beautiful...