forked from minetest-mods/mesecons
Cleanup and improve piston code
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ae4bd1e21c
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@ -297,9 +297,7 @@ function mesecon:turnon(pos)
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mesecon:turnon(np)
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end
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end
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end
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if mesecon:is_effector(node.name) then
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elseif mesecon:is_effector(node.name) then
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mesecon:changesignal(pos, node)
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if mesecon:is_effector_off(node.name) then
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mesecon:activate(pos, node)
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@ -321,9 +319,7 @@ function mesecon:turnoff(pos)
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mesecon:turnoff(np)
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end
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end
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end
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if mesecon:is_effector(node.name) then
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elseif mesecon:is_effector(node.name) then
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mesecon:changesignal(pos, node)
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if mesecon:is_effector_on(node.name)
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and not mesecon:is_powered(pos) then
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@ -8,6 +8,10 @@ mesecon.on_placenode = function (pos, node)
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mesecon:changesignal(pos, node)
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mesecon:activate(pos, node)
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end
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elseif mesecon:is_conductor_on(node.name) then
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mesecon:swap_node(pos, mesecon:get_conductor_off(node.name))
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elseif mesecon:is_effector_on (node.name) then
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mesecon:deactivate(pos, node)
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end
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end
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@ -6,6 +6,15 @@ function mesecon:swap_node(pos, name)
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minetest.env:get_meta(pos):from_table(data)
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end
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function mesecon:move_node(pos, newpos)
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local node = minetest.env:get_node(pos)
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local meta = minetest.env:get_meta(pos):to_table()
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minetest.env:remove_node(pos)
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minetest.env:add_node(newpos, node)
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minetest.env:get_meta(pos):from_table(meta)
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end
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function mesecon:addPosRule(p, r)
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return {x = p.x + r.x, y = p.y + r.y, z = p.z + r.z}
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end
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@ -216,10 +216,10 @@ function mesecon:update_autoconnect(pos, secondcall, replace_old)
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if mesecon:rules_link_anydir(pos, zpympos) then zp = 1 end
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if mesecon:rules_link_anydir(pos, zmympos) then zm = 1 end
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if mesecon:rules_link(pos, xpypos) then xpy = 1 else xpy = 0 end
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if mesecon:rules_link(pos, zpypos) then zpy = 1 else zpy = 0 end
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if mesecon:rules_link(pos, xmypos) then xmy = 1 else xmy = 0 end
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if mesecon:rules_link(pos, zmypos) then zmy = 1 else zmy = 0 end
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if mesecon:rules_link_anydir(pos, xpypos) then xpy = 1 else xpy = 0 end
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if mesecon:rules_link_anydir(pos, zpypos) then zpy = 1 else zpy = 0 end
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if mesecon:rules_link_anydir(pos, xmypos) then xmy = 1 else xmy = 0 end
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if mesecon:rules_link_anydir(pos, zmypos) then zmy = 1 else zmy = 0 end
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if xpy == 1 then xp = 1 end
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if zpy == 1 then zp = 1 end
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@ -1,5 +1,25 @@
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--PISTONS
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-- Get mesecon rules of pistons
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piston_rules =
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{{x=0, y=0, z=1}, --everything apart from z- (pusher side)
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{x=1, y=0, z=0},
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{x=-1, y=0, z=0},
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{x=1, y=1, z=0},
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{x=1, y=-1, z=0},
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{x=-1, y=1, z=0},
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{x=-1, y=-1, z=0},
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{x=0, y=1, z=1},
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{x=0, y=-1, z=1}}
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local piston_get_rules = function (node)
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local rules = piston_rules
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for i = 1, node.param2 do
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rules = mesecon:rotate_rules_left(rules)
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end
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return rules
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end
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--starts the timer to make the piston update to its new state
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local update = function(pos, node)
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local timer = minetest.env:get_node_timer(pos)
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@ -44,11 +64,12 @@ end
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function mesecon:piston_push(pos)
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local node = minetest.env:get_node(pos)
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local dir = mesecon:piston_get_direction(node)
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pos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to first node being pushed
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pos = addPosRule(pos, dir) --move to first node being pushed
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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, y=pos.y, z=pos.z} --first node being pushed
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while true do
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local checknode = minetest.env:get_node(checkpos)
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@ -69,10 +90,13 @@ function mesecon:piston_push(pos)
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return
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end
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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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checkpos = addPosRule(checkpos, dir)
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end
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local checknode = minetest.env:get_node(pos)
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local thisnode = minetest.env:get_node(pos)
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minetest.env:remove_node(pos)
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mesecon.on_dignode(pos, thisnode)
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local nextnode
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--add pusher
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if node.name == "mesecons_pistons:piston_normal" then
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@ -91,25 +115,15 @@ function mesecon:piston_push(pos)
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--move nodes forward
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for i = 1, count do
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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 next node
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pos = addPosRule(pos, dir) --move to the next node
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--check for conductor --wip: not sure if still needed
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if mesecon:is_conductor_on(checknode.name) then
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checknode.name = mesecon:get_conductor_off(checknode.name)
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end
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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:add_node(pos, checknode)
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checknode = nextnode
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end
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--update nodes
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for i = 1, count do
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mesecon:updatenode(pos)
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nextnode = minetest.env:get_node(pos)
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minetest.env:remove_node(pos)
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mesecon.on_dignode(pos, thisnode)
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minetest.env:add_node(pos, thisnode)
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mesecon.on_placenode(pos, thisnode)
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thisnode = nextnode
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nodeupdate(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 previous node
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end
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end
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@ -140,23 +154,17 @@ function mesecon:piston_pull(pos)
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--retract piston
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minetest.env:remove_node(pos) --remove pusher
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if node.name == "mesecons_pistons:piston_sticky"
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or node.name == "mesecons_pistons:piston_up_sticky"
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or node.name == "mesecons_pistons:piston_down_sticky" then --retract block if piston is sticky
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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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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 minetest.registered_nodes[checknode.name].liquidtype == "none"
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and not mesecon:is_mvps_stopper(checknode.name) then
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minetest.env:add_node(pos, checknode)
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minetest.env:remove_node(checkpos)
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mesecon:updatenode(checkpos)
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nodeupdate(checkpos)
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if minetest.registered_nodes[node.name].is_sticky_piston then --retract block if piston is sticky
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local retractpos = addPosRule(pos, dir) --move to the node to be retracted
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local retractnode = minetest.env:get_node(retractpos)
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if minetest.registered_nodes[retractnode.name].liquidtype == "none"
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and not mesecon:is_mvps_stopper(retractnode.name) then
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mesecon:move_node(retractpos, pos)
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mesecon.on_dignode(retractpos, retractnode)
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mesecon.on_placenode(pos, retractnode)
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nodeupdate(pos)
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end
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end
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mesecon:updatenode(pos)
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nodeupdate(pos)
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end
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--push direction of a piston
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@ -208,7 +216,8 @@ minetest.register_node("mesecons_pistons:piston_normal", {
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return minetest.item_place(itemstack, placer, pointed_thing) --place piston normally
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end,
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mesecons = {effector={
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action_change = update
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action_change = update,
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rules = piston_get_rules
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}}
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})
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@ -219,6 +228,7 @@ minetest.register_node("mesecons_pistons:piston_sticky", {
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paramtype2 = "facedir",
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after_destruct = destruct,
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on_timer = timer,
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is_sticky_piston = true,
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on_place = function(itemstack, placer, pointed_thing)
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if pointed_thing.type ~= "node" then --can be placed only on nodes
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return itemstack
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@ -243,7 +253,8 @@ minetest.register_node("mesecons_pistons:piston_sticky", {
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return minetest.item_place(itemstack, placer, pointed_thing) --place piston normally
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end,
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mesecons = {effector={
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action_change = update
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action_change = update,
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rules = piston_get_rules
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}}
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})
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@ -307,6 +318,7 @@ minetest.register_node("mesecons_pistons:piston_up_normal", {
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groups = {cracky=3, mesecon=2},
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after_destruct = destruct,
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on_timer = timer,
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is_sticky_piston = true,
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mesecons = {effector={
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action_change = update
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}},
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@ -393,6 +405,7 @@ minetest.register_node("mesecons_pistons:piston_down_sticky", {
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groups = {cracky=3, mesecon=2},
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after_destruct = destruct,
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on_timer = timer,
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is_sticky_piston = true,
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mesecons = {effector={
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action_change = update
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}},
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