Can only hoe top of soil (thanks HybridDog for this idea), breaking sound added to hoe

api.txt

@@ -21,7 +21,7 @@ The farming API allows you to easily register plants and hoes.
 
 
 	{
-		description = "",                      -- Description for tooltip
+		description = "My Hoe",                -- Description for tooltip
 		inventory_image = "unknown_item.png",  -- Image to be used as wield- and inventory image
 		max_uses = 30,                         -- Uses until destroyed
 		material = "",                         -- Material for recipes
@@ -35,7 +35,7 @@ The farming API allows you to easily register plants and hoes.
 ### Plant definition
 
 	{
-		description = "",                      -- Description of seed item
+		description = "My Plant",              -- Description of seed item
 		inventory_image = "unknown_item.png",  -- Image to be used as seed's wield- and inventory image
 		steps = 8,                             -- How many steps the plant has to grow, until it can be harvested
 		-- ^ Always provide a plant texture for each step, format: modname_plantname_i.png (i = stepnumber)

hoes.lua

@@ -63,8 +63,9 @@ function farming.hoe_on_use(itemstack, user, pointed_thing, uses)
 
 	local pt = pointed_thing
 
-	-- check if pointing at a node
-	if not pt or pt.type ~= "node" then
+	-- am I going to hoe the top of a dirt node?
+	if not pt or pt.type ~= "node"
+	or pt.above.y ~= pt.under.y + 1 then
 		return
 	end
 
@@ -100,7 +101,8 @@ function farming.hoe_on_use(itemstack, user, pointed_thing, uses)
 
 	minetest.sound_play("default_dig_crumbly", {pos = pt.under, gain = 0.5})
 
-	local wear = 65535 / (uses -1)
+	local wdef = itemstack:get_definition()
+	local wear = 65535 / (uses - 1)
 
 	if farming.is_creative(user:get_player_name()) then
 		if tr then
@@ -116,6 +118,11 @@ function farming.hoe_on_use(itemstack, user, pointed_thing, uses)
 		itemstack:add_wear(wear)
 	end
 
+	if itemstack:get_count() == 0 and wdef.sound and wdef.sound.breaks then
+		minetest.sound_play(wdef.sound.breaks, {pos = pt.above,
+			gain = 0.5}, true)
+	end
+
 	return itemstack
 end