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init.lua

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+local digtime = 0.1
+local caps = {times = {digtime, digtime, digtime}, uses = 0, maxlevel = 256}
+minetest.register_tool("superpick:pick", {
+	description = "Super Pickaxe",
+	inventory_image = "superpick.png",
+	range = 35,
+	groups = {not_in_creative_inventory = 1},
+	tool_capabilities = {
+		full_punch_interval = 0.1,
+		max_drop_level = 256,
+		groupcaps = {
+			unbreakable =   caps,
+			dig_immediate = {times = {[2] = digtime, [3] = digtime}, uses = 0, maxlevel = 256},
+			fleshy =	caps,
+			choppy =	caps,
+			bendy =	caps,
+			cracky =	caps,
+			crumbly = caps,
+			snappy =	caps,
+		},
+		damage_groups = {fleshy = 1000}
+	},
+	on_drop = function(itemstack, player)
+	local name = player:get_player_name()
+	minetest.chat_send_player(name, "Dont drop!")
+end
+})
+minetest.register_alias("superpick", "superpick:pick")
+minetest.register_privilege("superpick", {description = "Ability to wield the mighty admin pickaxe!",give_to_singleplayer = false})
+
+minetest.register_on_punchnode(function(pos, node, puncher)
+	if puncher:get_wielded_item():get_name() == "superpick:pick"
+	and minetest.get_node(pos).name ~= "air" then
+			if not minetest.check_player_privs(
+				puncher:get_player_name(), {superpick = true}) then
+			puncher:set_wielded_item("")
+			minetest.log("action", puncher:get_player_name() ..
+			" tried to use a Super Pickaxe!")
+			return
+		end
+		minetest.log(
+			"action",
+			puncher:get_player_name() ..
+			" digs " ..
+			minetest.get_node(pos).name ..
+			" at " ..
+			minetest.pos_to_string(pos) ..
+			" using a Superpick."
+		)
+		-- The node is removed directly, which means it even works
+		-- on non-empty containers and group-less nodes
+		minetest.remove_node(pos)
+		-- Run node update actions like falling nodes
+		minetest.check_for_falling(pos)
+	end
+end)
+
+minetest.register_on_mods_loaded(function()
+	for node in pairs(minetest.registered_nodes) do
+		local def = minetest.registered_nodes[node]
+		for i in pairs(def) do
+			if i == "on_punch" then
+				local rem = def.on_punch
+				local function new_on_punch(pos, new_node, puncher, pointed_thing)
+					if puncher:get_wielded_item():get_name() == "superpick:pick"
+					and minetest.get_node(pos).name ~= "air" then
+					minetest.remove_node(pos)
+					minetest.check_for_falling(pos)
+					end
+					return rem(pos, new_node, puncher, pointed_thing)
+				end
+				minetest.override_item(node, {
+					on_punch = new_on_punch
+				})
+			end
+		end
+	end
+end)

mod.conf

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+name = superpick