Spawn items in a one block radius of a block

[Gloozzy]

is there a way to spawn items in a 1 block radius

my current code (it only spawns on the black carpet atm)

set {_itemdrop.loc} to location at 214.500, 74, 142.500 in world "world"
drop 1 coal at {_itemdrop.loc} without velocity

 

[WoolBoy]

To start you will have to loop all of the blocks in a radius 1 of the generator, this will return the location of all 9 of the blocks.
Inside the loop you will want to set a variable ({_spawnloc} for example) to a location 1 block above the loop-block, and then spawn 1 coal at the location of the variable.