many worldgen mods and gonna try technic now

mods/technic_plus/technic/tools/mining_lasers.lua

@@ -0,0 +1,127 @@
+local mining_lasers_list = {
+--	{<num>, <range of the laser shots>, <max_charge>, <charge_per_shot>},
+	{"1", 7, 50000, 1000},
+	{"2", 14, 200000, 2000},
+	{"3", 21, 650000, 3000},
+}
+local allow_entire_discharging = true
+
+local S = technic.getter
+
+minetest.register_craft({
+	output = "technic:laser_mk1",
+	recipe = {
+		{"default:diamond", "basic_materials:brass_ingot",        "default:obsidian_glass"},
+		{"",                "basic_materials:brass_ingot",        "technic:red_energy_crystal"},
+		{"",                "",                           "default:copper_ingot"},
+	}
+})
+minetest.register_craft({
+	output = "technic:laser_mk2",
+	recipe = {
+		{"default:diamond", "technic:carbon_steel_ingot", "technic:laser_mk1"},
+		{"",                "technic:carbon_steel_ingot", "technic:green_energy_crystal"},
+		{"",                "",                           "default:copper_ingot"},
+	}
+})
+minetest.register_craft({
+	output = "technic:laser_mk3",
+	recipe = {
+		{"default:diamond", "technic:carbon_steel_ingot", "technic:laser_mk2"},
+		{"",                "technic:carbon_steel_ingot", "technic:blue_energy_crystal"},
+		{"",                "",                           "default:copper_ingot"},
+	}
+})
+
+local function laser_node(pos, node, player)
+	local def = minetest.registered_nodes[node.name]
+	if def.liquidtype ~= "none" and def.buildable_to then
+		minetest.remove_node(pos)
+		minetest.add_particle({
+			pos = pos,
+			velocity = {x = 0, y = 1.5 + math.random(), z = 0},
+			acceleration = {x = 0, y = -1, z = 0},
+			size = 6 + math.random() * 2,
+			texture = "smoke_puff.png^[transform" .. math.random(0, 7),
+		})
+		return
+	end
+	def.on_dig(pos, node, player)
+end
+
+local keep_node = {air = true}
+local function can_keep_node(name)
+	if keep_node[name] ~= nil then
+		return keep_node[name]
+	end
+	keep_node[name] = minetest.get_item_group(name, "hot") ~= 0
+	return keep_node[name]
+end
+
+local function laser_shoot(player, range, particle_texture, sound)
+	local player_pos = player:get_pos()
+	local player_name = player:get_player_name()
+	local dir = player:get_look_dir()
+
+	local start_pos = vector.new(player_pos)
+	-- Adjust to head height
+	start_pos.y = start_pos.y + (player:get_properties().eye_height or 1.625)
+	minetest.add_particle({
+		pos = start_pos,
+		velocity = dir,
+		acceleration = vector.multiply(dir, 50),
+		expirationtime = (math.sqrt(1 + 100 * (range + 0.4)) - 1) / 50,
+		size = 1,
+		texture = particle_texture .. "^[transform" .. math.random(0, 7),
+	})
+	minetest.sound_play(sound, {pos = player_pos, max_hear_distance = range})
+	for pos in technic.trace_node_ray_fat(start_pos, dir, range) do
+		if minetest.is_protected(pos, player_name) then
+			minetest.record_protection_violation(pos, player_name)
+			break
+		end
+		local node = minetest.get_node(pos)
+		if node.name == "ignore"
+				or not minetest.registered_nodes[node.name] then
+			break
+		end
+		if not can_keep_node(node.name) then
+			laser_node(pos, node, player)
+		end
+	end
+end
+
+for _, m in pairs(mining_lasers_list) do
+	technic.register_power_tool("technic:laser_mk"..m[1], m[3])
+	minetest.register_tool("technic:laser_mk"..m[1], {
+		description = S("Mining Laser Mk%d"):format(m[1]),
+		inventory_image = "technic_mining_laser_mk"..m[1]..".png",
+		range = 0,
+		stack_max = 1,
+		wear_represents = "technic_RE_charge",
+		on_refill = technic.refill_RE_charge,
+		on_use = function(itemstack, user)
+			local meta = minetest.deserialize(itemstack:get_metadata())
+			if not meta or not meta.charge or meta.charge == 0 then
+				return
+			end
+
+			local range = m[2]
+			if meta.charge < m[4] then
+				if not allow_entire_discharging then
+					return
+				end
+				-- If charge is too low, give the laser a shorter range
+				range = range * meta.charge / m[4]
+			end
+			laser_shoot(user, range, "technic_laser_beam_mk" .. m[1] .. ".png",
+				"technic_laser_mk" .. m[1])
+			if not technic.creative_mode then
+				meta.charge = math.max(meta.charge - m[4], 0)
+				technic.set_RE_wear(itemstack, meta.charge, m[3])
+				itemstack:set_metadata(minetest.serialize(meta))
+			end
+			return itemstack
+		end,
+	})
+end