-- LUALOCALS < ---------------------------------------------------------
local ItemStack, ipairs, minetest, nodecore
    = ItemStack, ipairs, minetest, nodecore
-- LUALOCALS > ---------------------------------------------------------

local modname = minetest.get_current_modname()

local plank = modname .. ":plank"
minetest.register_node(plank, {
		description = "Wooden Plank",
		tiles = { modname .. "_plank.png" },
		groups = {
			choppy = 3
		}
	})

nodecore.extend_node("nc_tree:tree", function(copy, orig)
		local oc = orig.can_pummel or function() end
		copy.can_pummel = function(pos, node, stats, ...)
			if (stats.pointed.above.y - stats.pointed.under.y) == 1
			and nodecore.wieldgroup(stats.puncher, "choppy") then
				return plank
			end
			return oc(pos, node, stats)
		end
		local op = orig.on_pummel or function() end
		copy.on_pummel = function(pos, node, stats, ...)
			if stats.check ~= plank or stats.duration < 5 then
				return op(pos, node, stats, ...)
			end
			minetest.remove_node(pos)
			local defer = 0
			for _, v in ipairs({
					{x = pos.x + 1, y = pos.y, z = pos.z},
					{x = pos.x - 1, y = pos.y, z = pos.z},
					{x = pos.x, y = pos.y, z = pos.z + 1},
					{x = pos.x, y = pos.y, z = pos.z - 1}
					}) do
				if nodecore.buildable_to(v) then
					minetest.item_drop(ItemStack(plank), nil, v)
				else
					defer = defer + 1
				end
			end
			if defer > 0 then
				minetest.item_drop(ItemStack(plank .. " " .. defer), nil, pos)
			end
			return true
		end
	end)