[Bug] Walkers align into grids with most processors

[xaroth8088]

Steps to reproduce

1. Open WalkerSim.exe
2. Set the population density to 2000 (so that the effect is more easily seen)
3. Select Navezgane from the maps dropdown (so that you have a frame of reference for the scales involved)
4. Remove all processors
5. Add any group processor (e.g. FlockSameGroup) with power 10 and distance 750
6. Set the simulation speed to 256x
7. Start the simulation
8. Wait

Expected result

Zombies should distribute according to their processors. For example, FlockSameGroup should result in clustering.

Actual result

Zombies align themselves into a grid pattern, as seen in the attached screenshot.

Additional

Here's a list of processors that formed a grid:

• FlockAnyGroup
• AlignAnyGroup
• AvoidAnyGroup
• FlockOtherGroup
• AlignOtherGroup
• AvoidOtherGroup
• FlockSameGroup
• AlignSameGroup
• AvoidSameGroup
• Wind
• WindInverted
• StickToRoads
• AvoidRoads
• AvoidPOIs
• WorldEvents

Processors that didn't form a grid:

• AlignOtherGroup doesn't quite make the whole grid, though it does form a solid box around the edges of the map
• StickToPOIs appears to behave correctly

[ZehMatt]

You have set a maximum distance to 750 so thats how far it will go querying the neighbouring cells. The neighboring query is also limited due to performance reasons.