forked from minetest-mods/mesecons
		
	Place up/down pistons automatically depending on the player look direction, remove the craft recipes for up/down pistons, and unify all the pushing/pulling behaviors into mesecon:piston_push(pos) and mesecon:piston_pull(pos).
This commit is contained in:
		@@ -1,38 +1,214 @@
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--PISTONS
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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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	timer:stop()
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	timer:start(0)
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end
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--on_destruct callback, removes the piston pusher if it is present
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local destruct = function(pos, oldnode)
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	local dir = mesecon:piston_get_direction(oldnode)
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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 to check
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	--ensure piston is extended
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	local checknode = minetest.env:get_node(pos)
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	if checknode.name == "mesecons_pistons:piston_pusher_normal"
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	or checknode.name == "mesecons_pistons:piston_pusher_sticky" then
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		if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
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			minetest.env:remove_node(pos) --remove the pusher
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		end
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	elseif oldnode.name == "mesecons_pistons:piston_up_normal" or oldnode.name == "mesecons_pistons:piston_up_sticky" then
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		if checknode.name == "mesecons_pistons:piston_up_pusher_normal" or checknode.name == "mesecons_pistons:piston_up_pusher_sticky" then
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			minetest.env:remove_node(pos) --remove the pusher
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		end
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	elseif oldnode.name == "mesecons_pistons:piston_down_normal" or oldnode.name == "mesecons_pistons:piston_down_sticky" then
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		if checknode.name == "mesecons_pistons:piston_down_pusher_normal" or checknode.name == "mesecons_pistons:piston_down_pusher_sticky" then
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			minetest.env:remove_node(pos) --remove the pusher
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		end
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	end
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end
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--node timer callback, pushes/pulls the piston depending on whether it is powered
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local timer = function(pos, elapsed)
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	if mesecon:is_powered(pos) then
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		mesecon:piston_push(pos)
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	else
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		mesecon:piston_pull(pos)
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	end
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	return false
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end
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--piston push action
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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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	--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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		--check for collision with stopper or bounds
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		if mesecon:is_mvps_stopper(checknode.name) or checknode.name == "ignore" then
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			return
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		end
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		--check for column end
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		if checknode.name == "air"
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		or not(minetest.registered_nodes[checknode.name].liquidtype == "none") then
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			break
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		end
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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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		checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
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	end
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	local checknode = minetest.env:get_node(pos)
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	--add pusher
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	if node.name == "mesecons_pistons:piston_normal" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_normal", param2=node.param2})
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	elseif node.name == "mesecons_pistons:piston_sticky" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_sticky", param2=node.param2})
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	elseif node.name == "mesecons_pistons:piston_up_normal" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_up_pusher_normal"})
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	elseif node.name == "mesecons_pistons:piston_up_sticky" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_up_pusher_sticky"})
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	elseif node.name == "mesecons_pistons:piston_down_normal" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_down_pusher_normal"})
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	elseif node.name == "mesecons_pistons:piston_down_sticky" then
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		minetest.env:add_node(pos, {name="mesecons_pistons:piston_down_pusher_sticky"})
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	end
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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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		--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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		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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--piston pull action
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function mesecon:piston_pull(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 replaced
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	--ensure piston is extended
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	local checknode = minetest.env:get_node(pos)
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	if node.name == "mesecons_pistons:piston_up_normal" or node.name == "mesecons_pistons:piston_up_sticky" then --up piston
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		if checknode.name ~= "mesecons_pistons:piston_up_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_up_pusher_sticky" then
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			return --piston is not extended
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		end
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	elseif node.name == "mesecons_pistons:piston_down_normal" or node.name == "mesecons_pistons:piston_down_sticky" then --down piston
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		if checknode.name ~= "mesecons_pistons:piston_down_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_down_pusher_sticky" then
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			return --piston is not extended
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		end
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	else --horizontal piston
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		if checknode.name ~= "mesecons_pistons:piston_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_pusher_sticky" then
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			return --piston is not extended
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		end
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		if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
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			return --piston is not extended
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		end
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	end
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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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		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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function mesecon:piston_get_direction(node)
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	if node.name == "mesecons_pistons:piston_up_normal" or node.name == "mesecons_pistons:piston_up_sticky" then
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		return {x=0, y=1, z=0}
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	elseif node.name == "mesecons_pistons:piston_down_normal" or node.name == "mesecons_pistons:piston_down_sticky" then
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		return {x=0, y=-1, z=0}
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	elseif node.param2 == 3 then
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		return {x=1, y=0, z=0}
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	elseif node.param2 == 2 then
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		return {x=0, y=0, z=1}
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	elseif node.param2 == 1 then
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		return {x=-1, y=0, z=0}
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	else --node.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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--horizontal pistons
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minetest.register_node("mesecons_pistons:piston_normal", {
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	description = "Piston",
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	tiles = {"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, mesecon=2},
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	paramtype2 = "facedir",
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	after_destruct = function(pos, oldnode)
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		local dir = mesecon:piston_get_direction(oldnode)
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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 to check
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		--ensure piston is extended
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		local checknode = minetest.env:get_node(pos)
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		if checknode.name == "mesecons_pistons:piston_pusher_normal" then
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			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
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				minetest.env:remove_node(pos) --remove the pusher
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	after_destruct = destruct,
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	on_timer = timer,
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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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		end
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		if not placer then
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			return minetest.item_place(itemstack, placer, pointed_thing)
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		end
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		local dir = placer:get_look_dir()
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		if math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then --vertical look direction is most significant
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			local fakestack
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			if dir.y > 0 then
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				fakestack = ItemStack("mesecons_pistons:piston_down_normal")
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			else
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				fakestack = ItemStack("mesecons_pistons:piston_up_normal")
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			end
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			local ret = minetest.item_place(fakestack, placer, pointed_thing)
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			if ret:is_empty() then
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				itemstack:take_item()
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				return itemstack
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			end
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		end
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	end,
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	on_timer = function(pos, elapsed)
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		if mesecon:is_powered(pos) then
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			mesecon:piston_push(pos)
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		else
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			mesecon:piston_pull(pos)
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		end
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		return false
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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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	}}
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})
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@@ -41,48 +217,36 @@ minetest.register_node("mesecons_pistons:piston_sticky", {
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	tiles = {"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, mesecon=2},
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	paramtype2 = "facedir",
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	after_destruct = function(pos, oldnode)
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		local dir = mesecon:piston_get_direction(oldnode)
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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 to check
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		--ensure piston is extended
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		local checknode = minetest.env:get_node(pos)
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		if checknode.name == "mesecons_pistons:piston_pusher_sticky" then
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			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
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				minetest.env:remove_node(pos) --remove the pusher
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	after_destruct = destruct,
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	on_timer = timer,
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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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		end
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		if not placer then
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			return minetest.item_place(itemstack, placer, pointed_thing)
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		end
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		local dir = placer:get_look_dir()
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		if math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then --vertical look direction is most significant
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			local fakestack
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			if dir.y > 0 then
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				fakestack = ItemStack("mesecons_pistons:piston_down_sticky")
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			else
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				fakestack = ItemStack("mesecons_pistons:piston_up_sticky")
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			end
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			local ret = minetest.item_place(fakestack, placer, pointed_thing)
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			if ret:is_empty() then
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				itemstack:take_item()
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				return itemstack
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			end
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		end
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	end,
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	on_timer = function(pos, elapsed)
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		if mesecon:is_powered(pos) then
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			mesecon:piston_push(pos)
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		else
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			mesecon:piston_pull(pos)
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		end
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		return false
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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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	}}
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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", "group:mesecon_conductor_craftable", "default:cobble"},
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	}
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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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minetest.register_node("mesecons_pistons:piston_pusher_normal", {
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	drawtype = "nodebox",
 | 
			
		||||
	tiles = {"jeija_piston_pusher_normal.png"},
 | 
			
		||||
@@ -137,115 +301,170 @@ minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_normal")
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_sticky")
 | 
			
		||||
 | 
			
		||||
function mesecon:piston_push(pos)
 | 
			
		||||
	local node = minetest.env:get_node(pos)
 | 
			
		||||
	local dir = mesecon:piston_get_direction(node)
 | 
			
		||||
	pos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to first node being pushed
 | 
			
		||||
--up pistons
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_normal", {
 | 
			
		||||
	tiles = {"jeija_piston_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon=2},
 | 
			
		||||
	after_destruct = destruct,
 | 
			
		||||
	on_timer = timer,
 | 
			
		||||
	mesecons = {effector={
 | 
			
		||||
		action_change = update
 | 
			
		||||
	}},
 | 
			
		||||
	drop = "mesecons_pistons:piston_normal",
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
	--determine the number of nodes that need to be pushed
 | 
			
		||||
	local count = 0
 | 
			
		||||
	local checkpos = {x=pos.x, y=pos.y, z=pos.z} --first node being pushed
 | 
			
		||||
	while true do
 | 
			
		||||
		local checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_sticky", {
 | 
			
		||||
	tiles = {"jeija_piston_sticky_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon=2},
 | 
			
		||||
	after_destruct = destruct,
 | 
			
		||||
	on_timer = timer,
 | 
			
		||||
	mesecons = {effector={
 | 
			
		||||
		action_change = update
 | 
			
		||||
	}},
 | 
			
		||||
	drop = "mesecons_pistons:piston_sticky",
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
		--check for collision with stopper or bounds
 | 
			
		||||
		if mesecon:is_mvps_stopper(checknode.name) or checknode.name == "ignore" then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_pusher_normal", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {"jeija_piston_pusher_normal.png"},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
		--check for column end
 | 
			
		||||
		if checknode.name == "air"
 | 
			
		||||
		or not(minetest.registered_nodes[checknode.name].liquidtype == "none") then
 | 
			
		||||
			break
 | 
			
		||||
		end
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_pusher_sticky", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {
 | 
			
		||||
		"jeija_piston_pusher_sticky.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png"
 | 
			
		||||
		},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
		--limit piston pushing capacity
 | 
			
		||||
		count = count + 1
 | 
			
		||||
		if count > 15 then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_normal")
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_sticky")
 | 
			
		||||
 | 
			
		||||
		checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
 | 
			
		||||
	end
 | 
			
		||||
--down pistons
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_normal", {
 | 
			
		||||
	tiles = {"jeija_piston_tb.png", "jeija_piston_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon=2},
 | 
			
		||||
	after_destruct = destruct,
 | 
			
		||||
	on_timer = timer,
 | 
			
		||||
	mesecons = {effector={
 | 
			
		||||
		action_change = update
 | 
			
		||||
	}},
 | 
			
		||||
	drop = "mesecons_pistons:piston_normal",
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_sticky", {
 | 
			
		||||
	tiles = {"jeija_piston_tb.png", "jeija_piston_sticky_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon=2},
 | 
			
		||||
	after_destruct = destruct,
 | 
			
		||||
	on_timer = timer,
 | 
			
		||||
	mesecons = {effector={
 | 
			
		||||
		action_change = update
 | 
			
		||||
	}},
 | 
			
		||||
	drop = "mesecons_pistons:piston_sticky",
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
	--add pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_normal" then
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_normal", param2=node.param2})
 | 
			
		||||
	else
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_sticky", param2=node.param2})
 | 
			
		||||
	end
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_pusher_normal", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {"jeija_piston_pusher_normal.png"},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
	--move nodes forward
 | 
			
		||||
	for i = 1, count do
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the next node
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_pusher_sticky", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_sticky.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png"
 | 
			
		||||
		},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
		--check for conductor
 | 
			
		||||
		if mesecon:is_conductor_on(checknode.name) then
 | 
			
		||||
			checknode.name = mesecon:get_conductor_off(checknode.name)
 | 
			
		||||
		end
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_normal")
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_sticky")
 | 
			
		||||
 | 
			
		||||
		--move the node forward
 | 
			
		||||
		local nextnode = minetest.env:get_node(pos)
 | 
			
		||||
		minetest.env:add_node(pos, checknode)
 | 
			
		||||
		checknode = nextnode
 | 
			
		||||
	end
 | 
			
		||||
--craft recipes
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = '"mesecons_pistons:piston_normal" 2',
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"default:wood", "default:wood", "default:wood"},
 | 
			
		||||
		{"default:cobble", "default:steel_ingot", "default:cobble"},
 | 
			
		||||
		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
	--update nodes
 | 
			
		||||
	for i = 1, count do
 | 
			
		||||
		mesecon:updatenode(pos)
 | 
			
		||||
		nodeupdate(pos)
 | 
			
		||||
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x - dir.x, pos.y - dir.y, pos.z - dir.z --move to the previous node
 | 
			
		||||
	end
 | 
			
		||||
end
 | 
			
		||||
 | 
			
		||||
function mesecon:piston_pull(pos)
 | 
			
		||||
	local node = minetest.env:get_node(pos)
 | 
			
		||||
	local dir = mesecon:piston_get_direction(node)
 | 
			
		||||
	pos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to first node being replaced
 | 
			
		||||
 | 
			
		||||
	--ensure piston is extended
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
	if checknode.name ~= "mesecons_pistons:piston_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_pusher_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
	if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
 | 
			
		||||
		return --piston is not extended
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	--retract piston
 | 
			
		||||
	minetest.env:remove_node(pos) --remove pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_sticky" then --retract block
 | 
			
		||||
		local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
 | 
			
		||||
		checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
		if checknode.name ~= "air"
 | 
			
		||||
		and checknode.name ~= "ignore"
 | 
			
		||||
		and minetest.registered_nodes[checknode.name].liquidtype == "none"
 | 
			
		||||
		and not mesecon:is_mvps_stopper(checknode.name) then
 | 
			
		||||
			minetest.env:add_node(pos, checknode)
 | 
			
		||||
			minetest.env:remove_node(checkpos)
 | 
			
		||||
			mesecon:updatenode(checkpos)
 | 
			
		||||
			nodeupdate(checkpos)
 | 
			
		||||
		end
 | 
			
		||||
	end
 | 
			
		||||
	mesecon:updatenode(pos)
 | 
			
		||||
	nodeupdate(pos)
 | 
			
		||||
end
 | 
			
		||||
 | 
			
		||||
-- get piston direction
 | 
			
		||||
function mesecon:piston_get_direction(node)
 | 
			
		||||
	if node.param2 == 3 then
 | 
			
		||||
		return {x=1, y=0, z=0}
 | 
			
		||||
	elseif node.param2 == 2 then
 | 
			
		||||
		return {x=0, y=0, z=1}
 | 
			
		||||
	elseif node.param2 == 1 then
 | 
			
		||||
		return {x=-1, y=0, z=0}
 | 
			
		||||
	else --node.param2 == 0
 | 
			
		||||
		return {x=0, y=0, z=-1}
 | 
			
		||||
	end
 | 
			
		||||
end
 | 
			
		||||
 | 
			
		||||
dofile(minetest.get_modpath("mesecons_pistons").."/pistons_down.lua")
 | 
			
		||||
dofile(minetest.get_modpath("mesecons_pistons").."/pistons_up.lua")
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_sticky",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_materials:glue"},
 | 
			
		||||
		{"mesecons_pistons:piston_normal"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
@@ -1,214 +0,0 @@
 | 
			
		||||
--PISTONS
 | 
			
		||||
--registration normal one:
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_normal", {
 | 
			
		||||
	description = "Piston DOWN",
 | 
			
		||||
	tiles = {"jeija_piston_tb.png", "jeija_piston_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon = 2},
 | 
			
		||||
	after_dig_node = function(pos, oldnode)
 | 
			
		||||
		local dir = {x=0, y=-1, z=0}
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
 | 
			
		||||
 | 
			
		||||
		--ensure piston is extended
 | 
			
		||||
		local checknode = minetest.env:get_node(pos)
 | 
			
		||||
		if checknode.name == "mesecons_pistons:piston_down_pusher_normal" then
 | 
			
		||||
			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
 | 
			
		||||
				minetest.env:remove_node(pos) --remove the pusher
 | 
			
		||||
			end
 | 
			
		||||
		end
 | 
			
		||||
	end,
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_effector("mesecons_pistons:piston_down_normal", "mesecons_pistons:piston_down_normal")
 | 
			
		||||
 | 
			
		||||
--registration sticky one:
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_sticky", {
 | 
			
		||||
	description = "Sticky Piston DOWN",
 | 
			
		||||
	tiles = {"jeija_piston_tb.png", "jeija_piston_sticky_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon = 2},
 | 
			
		||||
	after_dig_node = function(pos, oldnode)
 | 
			
		||||
		local dir = {x=0, y=-1, z=0}
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
 | 
			
		||||
 | 
			
		||||
		--ensure piston is extended
 | 
			
		||||
		local checknode = minetest.env:get_node(pos)
 | 
			
		||||
		if checknode.name == "mesecons_pistons:piston_down_pusher_sticky" then
 | 
			
		||||
			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
 | 
			
		||||
				minetest.env:remove_node(pos) --remove the pusher
 | 
			
		||||
			end
 | 
			
		||||
		end
 | 
			
		||||
	end,
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_effector("mesecons_pistons:piston_down_sticky", "mesecons_pistons:piston_down_sticky")
 | 
			
		||||
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_down_normal",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_up_normal"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_normal",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_down_normal"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_down_sticky",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_up_sticky"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_sticky",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_down_sticky"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_pusher_normal", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {"jeija_piston_pusher_normal.png"},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_normal")
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_sticky")
 | 
			
		||||
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_down_pusher_sticky", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {
 | 
			
		||||
		"jeija_piston_pusher_sticky.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png"
 | 
			
		||||
		},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.3, -0.2, 0.2, 0.5, 0.2},
 | 
			
		||||
			{-0.5, -0.5, -0.5, 0.5, -0.3, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
-- Push action
 | 
			
		||||
mesecon:register_on_signal_on(function(pos, node)
 | 
			
		||||
	if node.name ~= "mesecons_pistons:piston_down_normal" and node.name ~= "mesecons_pistons:piston_down_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local dir = {x=0, y=-1, z=0}
 | 
			
		||||
	pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
 | 
			
		||||
 | 
			
		||||
	--determine the number of nodes that need to be pushed
 | 
			
		||||
	local count = 0
 | 
			
		||||
	local checkpos = {x=pos.x, y=pos.y, z=pos.z} --first node being pushed
 | 
			
		||||
	while true do
 | 
			
		||||
		local checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
 | 
			
		||||
		--check for collision with stopper or bounds
 | 
			
		||||
		if mesecon:is_mvps_stopper(checknode.name) or checknode.name == "ignore" then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		--check for column end
 | 
			
		||||
		if checknode.name == "air"
 | 
			
		||||
		or not(minetest.registered_nodes[checknode.name].liquidtype == "none") then
 | 
			
		||||
			break
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		--limit piston pushing capacity
 | 
			
		||||
		count = count + 1
 | 
			
		||||
		if count > 15 then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
	minetest.env:remove_node(pos) --remove the first node
 | 
			
		||||
	mesecon:updatenode(pos)
 | 
			
		||||
 | 
			
		||||
	--add pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_down_normal" then
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_down_pusher_normal", param2=node.param2})
 | 
			
		||||
	else
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_down_pusher_sticky", param2=node.param2})
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	--move nodes forward
 | 
			
		||||
	for i = 1, count do
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the next node
 | 
			
		||||
 | 
			
		||||
		--move the node forward
 | 
			
		||||
		local nextnode = minetest.env:get_node(pos)
 | 
			
		||||
		--minetest.env:dig_node(pos)
 | 
			
		||||
		minetest.env:set_node(pos, checknode)
 | 
			
		||||
		mesecon:updatenode(pos)
 | 
			
		||||
		checknode = nextnode
 | 
			
		||||
	end
 | 
			
		||||
end)
 | 
			
		||||
 | 
			
		||||
--Pull action
 | 
			
		||||
mesecon:register_on_signal_off(function(pos, node)
 | 
			
		||||
	if node.name ~= "mesecons_pistons:piston_down_normal" and node.name ~= "mesecons_pistons:piston_down_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local dir = {x=0, y=-1, z=0}
 | 
			
		||||
	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
 | 
			
		||||
 | 
			
		||||
	--ensure piston is extended
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
	if checknode.name ~= "mesecons_pistons:piston_down_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_down_pusher_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
	if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
 | 
			
		||||
		return --piston is not extended
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	--retract piston
 | 
			
		||||
	minetest.env:remove_node(pos) --remove pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_down_sticky" then --retract block
 | 
			
		||||
		local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
 | 
			
		||||
		checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
		if checknode.name ~= "air"
 | 
			
		||||
		and checknode.name ~= "ignore"
 | 
			
		||||
		and minetest.registered_nodes[checknode.name].liquidtype == "none"
 | 
			
		||||
		and not mesecon:is_mvps_stopper(checknode.name) then
 | 
			
		||||
			minetest.env:remove_node(checkpos)
 | 
			
		||||
			mesecon:updatenode(checkpos)
 | 
			
		||||
			minetest.env:set_node(pos, checknode)
 | 
			
		||||
			mesecon:updatenode(pos)
 | 
			
		||||
		end
 | 
			
		||||
	end
 | 
			
		||||
	nodeupdate(pos)
 | 
			
		||||
end)
 | 
			
		||||
@@ -1,202 +0,0 @@
 | 
			
		||||
--PISTONS
 | 
			
		||||
--registration normal one:
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_normal", {
 | 
			
		||||
	description = "Piston UP",
 | 
			
		||||
	tiles = {"jeija_piston_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon = 2},
 | 
			
		||||
	after_dig_node = function(pos, oldnode)
 | 
			
		||||
		local dir = {x=0, y=1, z=0}
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
 | 
			
		||||
 | 
			
		||||
		--ensure piston is extended
 | 
			
		||||
		local checknode = minetest.env:get_node(pos)
 | 
			
		||||
		if checknode.name == "mesecons_pistons:piston_up_pusher_normal" then
 | 
			
		||||
			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
 | 
			
		||||
				minetest.env:remove_node(pos) --remove the pusher
 | 
			
		||||
			end
 | 
			
		||||
		end
 | 
			
		||||
	end,
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_effector("mesecons_pistons:piston_up_normal", "mesecons_pistons:piston_up_normal")
 | 
			
		||||
 | 
			
		||||
--registration sticky one:
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_sticky", {
 | 
			
		||||
	description = "Sticky Piston UP",
 | 
			
		||||
	tiles = {"jeija_piston_sticky_side.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png"},
 | 
			
		||||
	groups = {cracky=3, mesecon = 2},
 | 
			
		||||
	after_dig_node = function(pos, oldnode)
 | 
			
		||||
		local dir = {x=0, y=1, z=0}
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
 | 
			
		||||
 | 
			
		||||
		--ensure piston is extended
 | 
			
		||||
		local checknode = minetest.env:get_node(pos)
 | 
			
		||||
		if checknode.name == "mesecons_pistons:piston_up_pusher_sticky" then
 | 
			
		||||
			if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
 | 
			
		||||
				minetest.env:remove_node(pos) --remove the pusher
 | 
			
		||||
			end
 | 
			
		||||
		end
 | 
			
		||||
	end,
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_effector("mesecons_pistons:piston_up_sticky", "mesecons_pistons:piston_up_sticky")
 | 
			
		||||
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_up_normal",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_normal"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
minetest.register_craft({
 | 
			
		||||
	output = "mesecons_pistons:piston_up_sticky",
 | 
			
		||||
	recipe = {
 | 
			
		||||
		{"mesecons_pistons:piston_sticky"},
 | 
			
		||||
	}
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_pusher_normal", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {"jeija_piston_pusher_normal.png"},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_normal")
 | 
			
		||||
mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_sticky")
 | 
			
		||||
 | 
			
		||||
minetest.register_node("mesecons_pistons:piston_up_pusher_sticky", {
 | 
			
		||||
	drawtype = "nodebox",
 | 
			
		||||
	tiles = {
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_sticky.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png",
 | 
			
		||||
		"jeija_piston_pusher_normal.png"
 | 
			
		||||
		},
 | 
			
		||||
	paramtype = "light",
 | 
			
		||||
	diggable = false,
 | 
			
		||||
	selection_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
	node_box = {
 | 
			
		||||
		type = "fixed",
 | 
			
		||||
		fixed = {
 | 
			
		||||
			{-0.2, -0.5, -0.2, 0.2, 0.3, 0.2},
 | 
			
		||||
			{-0.5, 0.3, -0.5, 0.5, 0.5, 0.5},
 | 
			
		||||
		},
 | 
			
		||||
	},
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
-- Push action
 | 
			
		||||
mesecon:register_on_signal_on(function(pos, node)
 | 
			
		||||
	if node.name ~= "mesecons_pistons:piston_up_normal" and node.name ~= "mesecons_pistons:piston_up_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local dir = {x=0, y=1, z=0}
 | 
			
		||||
	pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
 | 
			
		||||
 | 
			
		||||
	--determine the number of nodes that need to be pushed
 | 
			
		||||
	local count = 0
 | 
			
		||||
	local checkpos = {x=pos.x, y=pos.y, z=pos.z} --first node being pushed
 | 
			
		||||
	while true do
 | 
			
		||||
		local checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
 | 
			
		||||
		--check for collision with stopper or bounds
 | 
			
		||||
		if mesecon:is_mvps_stopper(checknode.name) or checknode.name == "ignore" then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		--check for column end
 | 
			
		||||
		if checknode.name == "air"
 | 
			
		||||
		or not(minetest.registered_nodes[checknode.name].liquidtype == "none") then
 | 
			
		||||
			break
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		--limit piston pushing capacity
 | 
			
		||||
		count = count + 1
 | 
			
		||||
		if count > 15 then
 | 
			
		||||
			return
 | 
			
		||||
		end
 | 
			
		||||
 | 
			
		||||
		checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
	minetest.env:remove_node(pos) --remove the first node
 | 
			
		||||
	mesecon:updatenode(pos)
 | 
			
		||||
 | 
			
		||||
	--add pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_up_normal" then
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_up_pusher_normal", param2=node.param2})
 | 
			
		||||
	else
 | 
			
		||||
		minetest.env:add_node(pos, {name="mesecons_pistons:piston_up_pusher_sticky", param2=node.param2})
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	--move nodes forward
 | 
			
		||||
	for i = 1, count do
 | 
			
		||||
		pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the next node
 | 
			
		||||
 | 
			
		||||
		--move the node forward
 | 
			
		||||
		local nextnode = minetest.env:get_node(pos)
 | 
			
		||||
		--minetest.env:dig_node(pos)
 | 
			
		||||
		minetest.env:set_node(pos, checknode)
 | 
			
		||||
		mesecon:updatenode(pos)
 | 
			
		||||
		checknode = nextnode
 | 
			
		||||
	end
 | 
			
		||||
end)
 | 
			
		||||
 | 
			
		||||
--Pull action
 | 
			
		||||
mesecon:register_on_signal_off(function(pos, node)
 | 
			
		||||
	if node.name ~= "mesecons_pistons:piston_up_normal" and node.name ~= "mesecons_pistons:piston_up_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	local dir = {x=0, y=1, z=0}
 | 
			
		||||
	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
 | 
			
		||||
 | 
			
		||||
	--ensure piston is extended
 | 
			
		||||
	local checknode = minetest.env:get_node(pos)
 | 
			
		||||
	if checknode.name ~= "mesecons_pistons:piston_up_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_up_pusher_sticky" then
 | 
			
		||||
		return
 | 
			
		||||
	end
 | 
			
		||||
	if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
 | 
			
		||||
		return --piston is not extended
 | 
			
		||||
	end
 | 
			
		||||
 | 
			
		||||
	--retract piston
 | 
			
		||||
	minetest.env:remove_node(pos) --remove pusher
 | 
			
		||||
	if node.name == "mesecons_pistons:piston_up_sticky" then --retract block
 | 
			
		||||
		local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
 | 
			
		||||
		checknode = minetest.env:get_node(checkpos)
 | 
			
		||||
		if checknode.name ~= "air"
 | 
			
		||||
		and checknode.name ~= "ignore"
 | 
			
		||||
		and minetest.registered_nodes[checknode.name].liquidtype == "none"
 | 
			
		||||
		and not mesecon:is_mvps_stopper(checknode.name) then
 | 
			
		||||
			minetest.env:remove_node(checkpos)
 | 
			
		||||
			mesecon:updatenode(checkpos)
 | 
			
		||||
			minetest.env:set_node(pos, checknode)
 | 
			
		||||
			mesecon:updatenode(pos)
 | 
			
		||||
		end
 | 
			
		||||
	end
 | 
			
		||||
	nodeupdate(pos)
 | 
			
		||||
end)
 | 
			
		||||
		Reference in New Issue
	
	Block a user