Editing StarCraft (video game) (section)

===Base construction===
Protoss and Zerg building construction is limited to specific locations: Protoss buildings need to be linked to a power grid,<ref name="Pbasic"/> while almost every Zerg structure must be placed on a carpet of biomass, called "creep", that is produced by certain structures.<ref name="Zbasic"/> Terran buildings are far less limited, with certain primary base structures possessing the ability to take off and fly slowly to a new location.<ref name="Tbasic"/> Terran buildings, however, require the worker unit to continue construction on the building until it is completed.  Also, once a Terran building has taken a certain amount of damage, it will catch fire and can eventually burn to the ground without further enemy action if repairs are not performed by a worker unit. The Protoss, by contrast, only require a worker unit to begin the process of transporting a building to the theater of operations via warp, and their buildings' shields (but not their structure) are regenerative.  The Zerg worker unit physically transforms into the structure created, which is capable of slowly healing itself.