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!!!Tornado MOD for Minetest!!!
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==============================
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License/Credits:
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==============================
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This mod will create a wind which will dig up blocks and spin them around
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(simulating a real tornado) The blocks will be sucked up into the sky.
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After some time, the tornado will dissapear
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==============================
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How to use:
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This Tornado MOD is simple to use. Simply get a stick from the inventory
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(or craft one). Then, choose a spot you would like to place the tornado.
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Select on the stick and right-click on the spot you would like to place
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the tornado.
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Now you have a tornado!
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==============================
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NOTE:
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THIS MOD IS STILL IN DEVELOPMENT. YOU MAY EXPERIENCE BUGS OR THIS MOD MAY
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NOT PERFORM THE WAY IT WAS EXPECTED TO. THIS COULD LEAD TO CRASHES AND
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INSTABILITY OF YOUR SYSTEM/GAME.
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default
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--give tons of warning
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for i = 1,20 do
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print("!!!WARNING, THE TORNADO MOD WILL DESTROY YOUR MAP, REMOVE IF IN CREATIVE WORLD!!!")
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end
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minetest.after(3, function()
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for i = 1,20 do
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print("!!!WARNING, THE TORNADO MOD WILL DESTROY YOUR MAP, REMOVE IF IN CREATIVE WORLD!!!")
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end
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end)
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minetest.register_entity("tornado:t", { --basic minecart
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physical = true,
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collisionbox = {-0.45, -0.45, -0.45, 0.45, 0.45, 0.45},
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visual = "",
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--mesh = "minecart.x",
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textures = {""},
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visual_size = {x=1, y=1},
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stepheight = 2,
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automatic_face_movement_dir = 0,
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timer = 0,
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collide_with_objects = false,
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health = 1,
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timer_max = 0,
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vel_goal_x = 0,
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vel_goal_z = 0,
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--when the entity is created in world
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on_activate = function(self, staticdata, dtime_s)
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--self.object:set_armor_groups({immortal=1})
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--self.object:set_animation({x=45,y=45},0, 0)
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--self.object:setacceleration({x=0,y=0,z=0})
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end,
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get_staticdata = function(self)
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return minetest.serialize({
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timer = self.timer,
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used = self.used,
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age = self.age,
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})
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end,
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--what the mob does in the world
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on_step = function(self, dtime)
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self.timer = self.timer + dtime
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local pos = self.object:getpos()
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local vel = self.object:getvelocity()
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tornado_destruction(pos,self)
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if self.timer > self.timer_max then
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--change velocity goal
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--print("change velocity goal")
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self.timer = 0
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self.timer_max = math.random(2,4)
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--move
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self.vel_goal_x = math.random(-5,5)*math.random()
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self.vel_goal_z = math.random(-5,5)*math.random()
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end
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self.object:setacceleration({x=self.vel_goal_x - vel.x,y=0,z=self.vel_goal_z - vel.z})
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end,
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})
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minetest.override_item("default:stick", {
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on_place = function(itemstack, placer, pointed_thing)
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minetest.add_entity(pointed_thing.above, "tornado:t")
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end,
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})
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--destroy the terrain
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function tornado_destruction(pos,self)
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if math.random() > 0.3 then
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return
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end
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local radius = 4
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local min = {x=pos.x-radius,y=pos.y-radius,z=pos.z-radius}
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local max = {x=pos.x+radius,y=pos.y+radius,z=pos.z+radius}
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local vm = minetest.get_voxel_manip()
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local emin, emax = vm:read_from_map(min,max)
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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local data = vm:get_data()
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local air = minetest.get_content_id("air")
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--minetest.get_name_from_content_id(content_id)
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for x = -radius,radius do
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for z = -radius,radius do
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for y = -radius,radius do
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local p_pos = area:index(pos.x+x,pos.y+y,pos.z+z)
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local pos2 = {x=pos.x+x,y=pos.y+y,z=pos.z+z}
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if data[p_pos] == nil then
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return
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end
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local name = minetest.get_name_from_content_id(data[p_pos])
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local node = minetest.registered_items[name]
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if name ~= "air" then
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if math.random() > 0.96 then
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data[p_pos] = minetest.get_content_id("air")
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ent = spawn_tornado_ent(pos2, node)
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ent:get_luaentity().goal = self.object
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break
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end
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end
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end
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end
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end
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--vm:update_liquids()
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vm:set_data(data)
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vm:calc_lighting()
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vm:write_to_map()
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vm:update_map()
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end
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core.register_entity("tornado:t_ent", {
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initial_properties = {
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visual = "wielditem",
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visual_size = {x = 0.667, y = 0.667},
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textures = {},
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physical = false,
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is_visible = true,
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collide_with_objects = false,
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collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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},
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health = 1,
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node = {},
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timer = 0,
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set_node = function(self, node)
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if node.name == "air" then
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self.object:remove()
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end
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self.node = node
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self.object:set_properties({
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is_visible = true,
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textures = {node.name},
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})
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end,
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get_staticdata = function(self)
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return core.serialize(self.node)
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end,
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on_activate = function(self, staticdata)
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self.object:set_armor_groups({immortal = 1})
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self.timer = 0
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local node = core.deserialize(staticdata)
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if node then
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self:set_node(node)
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elseif staticdata ~= "" then
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self:set_node({name = staticdata})
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end
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end,
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--what the mob does in the world
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on_step = function(self, dtime)
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self.timer = self.timer + dtime
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local pos = self.object:getpos()
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local vel = self.object:getvelocity()
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if self.goal ~= nil then
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if self.goal:get_luaentity() == nil then
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self.goal = nil
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return
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end
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local goalpos = self.goal:getpos()
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if pos.y - goalpos.y > 30 then
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self.object:remove()
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end
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--modified simplemobs api
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local vec = {x=pos.x-goalpos.x, y=pos.y-goalpos.y, z=pos.z-goalpos.z}
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local yaw = math.atan(vec.z/vec.x)+math.pi/2
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if pos.x > goalpos.x then
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yaw = yaw+math.pi
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end
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--self.object:setyaw(yaw)
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-- make a funnel
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local v = 30
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local x = 0
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local z = 0
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local radius = vec.y/10
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if math.abs(vec.x) < radius and math.abs(vec.z) < radius then
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x = math.sin(yaw) * -v
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z = math.cos(yaw) * v
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else
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x = math.sin(yaw) * v
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z = math.cos(yaw) * -v
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end
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self.object:setacceleration({x=x, y = 2,z=z})
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end
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end,
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})
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function spawn_tornado_ent(p, node)
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local obj = core.add_entity(p, "tornado:t_ent")
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obj:get_luaentity():set_node(node)
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return(obj)
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end
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