CUnit - Hatchery? - Harvest Value

https://github.com/bwapi/bwapi/blob/master/bwapi/BWAPI/Source/BW/CUnit.h#L227

left, top, right, bottom ?

Also:

Resource - Resource count/iscript/queue count

Nydus - Exit unit

Ghost - Nuke dot sprite

Pylon - Power overlay

Nuke Silo - Attached nuke

Powerup - Origin Coords

Worker - Harvest target unit