When using a click to constantly activate the command '/testfor @a[r=3]',
it seems that instead of the edge of the block being the check area, it is the pixel separation i am looking at in the second picture.
MC-49002
/testfor @a[r=#] isnt working correcly
Resolved
Works As Intended
0
Was changed to use the center of the blocks instead of the edges, see MC-44758