forked from minetest-mods/mesecons
204 lines
6.5 KiB
Lua
204 lines
6.5 KiB
Lua
--PISTONS
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--registration normal one:
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minetest.register_node("mesecons_pistons:piston_normal", {
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tile_images = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_side.png"},
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groups = {cracky=3},
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paramtype2="facedir",
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description="Piston",
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after_dig_node = function(pos)
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local objs = minetest.env:get_objects_inside_radius(pos, 2)
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for k, obj in pairs(objs) do
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if obj:get_entity_name() == "mesecons_pistons:piston_pusher_normal" then
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obj:remove()
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end
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end
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end
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})
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minetest.register_craft({
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output = '"mesecons_pistons:piston_normal" 2',
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recipe = {
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{"default:wood", "default:wood", "default:wood"},
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{"default:cobble", "default:steel_ingot", "default:cobble"},
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{"default:cobble", "mesecons:mesecon_off", "default:cobble"},
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}
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})
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--registration sticky one:
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minetest.register_node("mesecons_pistons:piston_sticky", {
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tile_images = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_sticky_side.png"},
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groups = {cracky=3},
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paramtype2="facedir",
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description="Sticky Piston",
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after_dig_node = function(pos)
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local objs = minetest.env:get_objects_inside_radius(pos, 2)
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for k, obj in pairs(objs) do
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if obj:get_entity_name() == "mesecons_pistons:piston_pusher_sticky" then
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obj:remove()
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end
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end
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end
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})
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minetest.register_craft({
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output = "mesecons_pistons:piston_sticky",
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recipe = {
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{"mesecons_materials:glue"},
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{"mesecons_pistons:piston_normal"},
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}
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})
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-- get push direction
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function mesecon:piston_get_direction(pos)
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local param2 = minetest.env:get_node(pos).param2
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if param2 == 3 then
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return {x=1, y=0, z=0}
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elseif param2 == 2 then
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return {x=0, y=0, z=1}
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elseif param2 == 1 then
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return {x=-1, y=0, z=0}
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else --param2 == 0
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return {x=0, y=0, z=-1}
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end
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end
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-- Push action
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mesecon:register_on_signal_on(function (pos, node)
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if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then
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return
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end
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local dir = mesecon:piston_get_direction(pos)
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--determine the number of nodes that need to be pushed
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local count = 0
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local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --first node being pushed
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local checknode = minetest.env:get_node(checkpos)
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while checknode.name ~= "air"
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and checknode.name ~= "ignore"
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and checknode.name ~= "default:water_source"
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and checknode.name ~= "default:water_flowing"
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and checknode.name ~= "default:lava_source"
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and checknode.name ~= "default:lava_flowing" do
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--limit piston pushing capacity
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count = count + 1
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if count > 15 then
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return
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end
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--check for collision with stopper
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checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
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checknode = minetest.env:get_node(checkpos)
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if mesecon:is_mvps_stopper(checknode.name) then
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return
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end
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end
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--add pusher entity
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local object
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if node.name == "mesecons_pistons:piston_normal" then --normal piston
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object = minetest.env:add_entity(pos, "mesecons_pistons:piston_pusher_normal")
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else --sticky piston
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object = minetest.env:add_entity(pos, "mesecons_pistons:piston_pusher_sticky")
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end
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--move pusher forward
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if ENABLE_PISTON_ANIMATION then
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object:setvelocity({x=dir.x * 4, y=dir.y * 4, z=dir.z * 4})
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else
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object:moveto(pos, false)
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end
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--move nodes forward
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
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checknode = minetest.env:get_node(pos)
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minetest.env:dig_node(pos) --remove the first node
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for i = 1, count do
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--move to the next node
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z
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--move the node forward
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local nextnode = minetest.env:get_node(pos)
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minetest.env:place_node(pos, checknode)
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checknode = nextnode
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end
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end)
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--Pull action (sticky only)
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mesecon:register_on_signal_off(function(pos, node)
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if node.name ~= "mesecons_pistons:piston_sticky" and node.name ~= "mesecons_pistons:piston_normal" then
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return
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end
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--remove piston pusher
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local found = false --whether or not the piston was extended
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local objects = minetest.env:get_objects_inside_radius(pos, 2)
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for k, object in pairs(objects) do
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local name = object:get_luaentity().name
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if name == "mesecons_pistons:piston_pusher_normal" or name == "mesecons_pistons:piston_pusher_sticky" then
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found = true
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object:remove()
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end
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end
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--retract piston
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if found and node.name == "mesecons_pistons:piston_sticky" then
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local dir = mesecon:piston_get_direction(pos)
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the node to be replaced
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local checknode = minetest.env:get_node(pos)
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if checknode.name == "air"
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or checknode.name == "default:water_source"
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or checknode.name == "default:water_flowing"
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or checknode.name == "default:lava_source"
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or checknode.name == "default:lava_flowing" then
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local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
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local checknode = minetest.env:get_node(checkpos)
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if checknode.name ~= "air"
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and checknode.name ~= "ignore"
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and checknode.name ~= "default:water_source"
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and checknode.name ~= "default:water_flowing"
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and checknode.name ~= "default:lava_source"
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and checknode.name ~= "default:lava_flowing" then
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minetest.env:place_node(pos, checknode)
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minetest.env:dig_node(checkpos)
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end
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end
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end
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end)
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--Piston Animation
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local PISTON_PUSHER_NORMAL = {
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physical = false,
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visual = "sprite",
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textures = {"default_wood.png", "default_wood.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png"},
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collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
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visual = "cube",
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timer=0,
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}
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function PISTON_PUSHER_NORMAL:on_step(dtime)
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self.timer = self.timer+dtime
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if self.timer >= 0.24 then
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self.object:setvelocity({x=0, y=0, z=0})
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end
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end
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local PISTON_PUSHER_STICKY = {
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physical = false,
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visual = "sprite",
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textures = {"default_wood.png", "default_wood.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png"},
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collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
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visual = "cube",
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timer = 0,
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}
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function PISTON_PUSHER_STICKY:on_step(dtime)
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self.timer=self.timer+dtime
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if self.timer >= 0.24 then
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self.object:setvelocity({x=0, y=0, z=0})
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end
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end
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minetest.register_entity("mesecons_pistons:piston_pusher_normal", PISTON_PUSHER_NORMAL)
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minetest.register_entity("mesecons_pistons:piston_pusher_sticky", PISTON_PUSHER_STICKY)
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