code/datums/ai/generic_behaviors/maintain_distance.dm 
| /datum/bt_node/ai_behavior/maintain_distance | Moves away from a target if too close, or toward it if too far, to stay within the blackboard-keyed distance band. |
|---|---|
| /datum/bt_node/ai_behavior/maintain_distance/cover_minimum_distance | Retreats to the furthest available open turf within reach rather than a single step. |