Can you check the ground under a unit

[AionCannonzSC2]

Is there a function that returns the ground textures present under a unit or in a region? I want to try making some triggers like in the old old SNES game Ogre Battle, which creates a battlefield based on the terrain texture between the 2 clashing parties

 

[Izicial]

I don't know if there is in the beta but im sure they will add it in the retail because you could do this in war 3.