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--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)
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