diamond()
Syntax
diamond(center_pos, radius, height)
Iterates over a diamond like area of blocks. With no radius and height, its 7 blocks centered around the middle (block + neighbours). With a radius specified, it expands shape on x and z coords, and with a custom height, on y. Any of these can be zero as well. radius of 0 makes a stick, height of 0 makes a diamond shape pad.
If radius and height are the same, creats a 3D diamond, of all the blocks which
are a manhattan distance of radius
away from the center.