many worldgen mods and gonna try technic now

mods/dfcaverns/df_underworld_items/slade_drill.lua

@@ -0,0 +1,84 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
+local use_timeout = {}
+
+local check_timeout = function(user)
+	if not user:is_player() then return false end
+	local player_name = user:get_player_name()
+	local curr_time = minetest.get_gametime() -- minetest.get_us_time() for microsecond precision
+	local last_used = use_timeout[player_name]
+	if not last_used or curr_time > last_used then
+		use_timeout[player_name] = curr_time
+		return true
+	end
+end
+
+local drill_particles = function(pos)
+	minetest.add_particlespawner({
+		amount = 25,
+		time = 0.5,
+		minpos = pos,
+		maxpos = pos,
+		minvel = {x=-5, y=0, z=-5},
+		maxvel = {x=5, y=10, z=5},
+		minacc = {x=0, y=-10, z=0},
+		maxacc = {x=0, y=-10, z=0},
+		minexptime = 2.5,
+		maxexptime = 7.5,
+		minsize = 1,
+		maxsize = 5,
+		texture = "dfcaverns_glowpit_particle.png",
+		collisiondetection = true,
+		collision_removal = true,
+		glow = 15,
+	})
+end
+
+local slade_drill_def = {
+	_doc_items_longdesc = df_underworld_items.doc.slade_drill_desc,
+	_doc_items_usagehelp = df_underworld_items.doc.slade_drill_usage,
+	light_source = minetest.LIGHT_MAX,
+	description = S("Slade Drill"),
+	inventory_image = "dfcaverns_slade_drill.png",
+	groups = {cracky=3, slade=1, pit_plasma_resistant=1, mese_radiation_shield=1,creative_breakable=1, material_stone=1},
+	sounds = df_dependencies.sound_stone({ footstep = { name = "bedrock2_step", gain = 1 } }),
+	_mcl_blast_resistance = 8,
+	_mcl_hardness = 5,
+	on_use = function(itemstack, user, pointed_thing)
+		if pointed_thing.type == "node" then
+			local pos = pointed_thing.under
+			local node = minetest.get_node(pos)
+			if node.name == "df_underworld_items:slade" and check_timeout(user) then
+				if not minetest.is_creative_enabled(user:get_player_name()) then
+					itemstack:set_wear(itemstack:get_wear()+1)
+				end
+				minetest.sound_play("dfcaverns_slade_drill", {pos = user:get_pos()})
+				minetest.set_node(pos, {name="df_underworld_items:slade_sand"})
+				drill_particles(pointed_thing.above)
+				return itemstack
+			end
+		end	
+	end,
+}
+
+local tnt_boom = df_dependencies.tnt_boom
+if tnt_boom then
+	slade_drill_def.on_use = function(itemstack, user, pointed_thing)
+		if not check_timeout(user) then return end
+		local pos
+		if pointed_thing.type == "node" then pos = pointed_thing.under
+		elseif pointed_thing.type == "object" then pos = pointed_thing.ref:get_pos() end
+		if pos then
+			tnt_boom(pos, {radius=1})
+			minetest.sound_play("dfcaverns_slade_drill", {pos = user:get_pos()})
+			if not minetest.is_creative_enabled(user:get_player_name()) then
+				itemstack:set_wear(itemstack:get_wear()+1)
+			end
+			drill_particles(pos)
+			minetest.check_for_falling({x=pos.x, y=pos.y+1, z=pos.z})
+			return itemstack
+		end
+	end
+end
+
+minetest.register_tool("df_underworld_items:slade_drill", slade_drill_def)