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piston.lua
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piston.lua
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if not minetest.get_modpath("mesecons_mvps") then
minetest.log("error","mesecons_mvps is not installed - digilines piston will not be available!")
return
end
local function extend(pos, node, max_push, sound)
local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
local pusher_pos = vector.add(pos, dir)
local owner = minetest.get_meta(pos):get_string("owner")
local success, _, oldstack = mesecon.mvps_push(pusher_pos, dir, max_push, owner)
if not success then return end
if sound == "digilines" then
minetest.sound_play("digistuff_piston_extend", {pos = pos, max_hear_distance = 20, gain = 0.6})
elseif sound == "mesecons" then
minetest.sound_play("piston_extend", {pos = pos, max_hear_distance = 20, gain = 0.6})
end
minetest.swap_node(pos, {name = "digistuff:piston_ext", param2 = node.param2})
minetest.set_node(pusher_pos, {name = "digistuff:piston_pusher", param2 = node.param2})
mesecon.mvps_move_objects(pusher_pos, dir, oldstack)
end
local function retract(pos, node, max_pull, allsticky, sound)
local dir = minetest.facedir_to_dir(node.param2)
local pusher_pos = vector.add(pos, vector.multiply(dir, -1))
if minetest.get_node(pusher_pos).name == "digistuff:piston_pusher" then
minetest.remove_node(pusher_pos)
minetest.check_for_falling(pusher_pos)
end
if sound == "digilines" then
minetest.sound_play("digistuff_piston_retract", {pos = pos, max_hear_distance = 20, gain = 0.6})
elseif sound == "mesecons" then
minetest.sound_play("piston_retract", {pos = pos, max_hear_distance = 20, gain = 0.6})
end
minetest.swap_node(pos, {name = "digistuff:piston", param2 = node.param2})
if type(max_pull) ~= "number" or max_pull <= 0 then return end -- not sticky
local pullpos = vector.add(pos, vector.multiply(dir, -2))
local owner = minetest.get_meta(pos):get_string("owner")
local pull = allsticky and mesecon.mvps_pull_all or mesecon.mvps_pull_single
local success, _, oldstack = pull(pullpos, dir, max_pull, owner)
if success then
mesecon.mvps_move_objects(pullpos, vector.multiply(dir, -1), oldstack, -1)
end
end
minetest.register_node("digistuff:piston", {
description = "Digilines Piston",
groups = {cracky = 3},
is_ground_content = false,
paramtype2 = "facedir",
on_construct = function(pos)
local meta = minetest.get_meta(pos)
meta:set_string("formspec","field[channel;Channel;${channel}")
end,
after_place_node = mesecon.mvps_set_owner,
tiles = {
"digistuff_piston_sides.png^[transformR180",
"digistuff_piston_sides.png",
"digistuff_piston_sides.png^[transformR90",
"digistuff_piston_sides.png^[transformR270",
"digistuff_camera_pole.png",
"digistuff_camera_pole.png",
},
on_receive_fields = function(pos, formname, fields, sender)
if minetest.is_protected(pos, sender:get_player_name()) then return end
if fields.channel then
minetest.get_meta(pos):set_string("channel", fields.channel)
end
end,
_digistuff_channelcopier_fieldname = "channel",
digiline = {
wire = {
rules = {
{x = 1, y = 0, z = 0},
{x =-1, y = 0, z = 0},
{x = 0, y = 1, z = 0},
{x = 0, y =-1, z = 0},
{x = 0, y = 0, z = 1},
{x = 0, y = 0, z =-1},
},
},
effector = {
action = function(pos,node,channel,msg)
local setchan = minetest.get_meta(pos):get_string("channel")
if channel ~= setchan then return end
if msg == "extend" then
extend(pos, node, 16, "digilines")
elseif type(msg) == "table" and msg.action == "extend" then
local max_push = 16
if type(msg.max) == "number" then
max_push = math.max(0, math.min(16, math.floor(msg.max)))
end
extend(pos, node, max_push, msg.sound or "digilines")
end
end
},
},
})
minetest.register_node("digistuff:piston_ext", {
description = "Digilines Piston Extended (you hacker you!)",
groups = {cracky = 3, not_in_creative_inventory = 1},
is_ground_content = false,
paramtype2 = "facedir",
tiles = {
"digistuff_piston_sides.png^[transformR180",
"digistuff_piston_sides.png",
"digistuff_piston_sides.png^[transformR90",
"digistuff_piston_sides.png^[transformR270",
"digistuff_camera_pole.png",
"digistuff_camera_pole.png",
},
drop = "digistuff:piston",
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-0.5,-0.5,-0.3,0.5,0.5,0.5},
{-0.2,-0.2,-0.5,0.2,0.2,-0.3},
}
},
selection_box = {
type = "fixed",
fixed = {
{-0.5,-0.5,-1.5,0.5,0.5,0.5},
}
},
_digistuff_channelcopier_fieldname = "channel",
on_rotate = false,
on_receive_fields = function(pos, formname, fields, sender)
if minetest.is_protected(pos, sender:get_player_name()) then return end
if fields.channel then
minetest.get_meta(pos):set_string("channel", fields.channel)
end
end,
after_dig_node = function(pos,node)
local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
local pusher_pos = vector.add(pos, dir)
if minetest.get_node(pusher_pos).name == "digistuff:piston_pusher" then
minetest.remove_node(pusher_pos)
end
end,
digiline = {
wire = {
rules = {
{x = 1, y = 0, z = 0},
{x =-1, y = 0, z = 0},
{x = 0, y = 1, z = 0},
{x = 0, y =-1, z = 0},
{x = 0, y = 0, z = 1},
{x = 0, y = 0, z =-1},
},
},
effector = {
action = function(pos,node,channel,msg)
local setchan = minetest.get_meta(pos):get_string("channel")
if channel ~= setchan then return end
if msg == "retract" then
retract(pos, node, 0, false, "digilines")
elseif msg == "retract_sticky" then
retract(pos, node, 16, false, "digilines")
elseif msg == "retract_allsticky" then
retract(pos, node, 16, true, "digilines")
elseif type(msg) == "table" and msg.action == "retract" then
local max_pull = 16
if msg.max == nil then
max_pull = 0
elseif type(msg.max) == "number" then
max_pull = math.max(0, math.min(16, math.floor(msg.max)))
end
retract(pos, node, max_pull, msg.allsticky, msg.sound or "digilines")
end
end
},
},
})
minetest.register_node("digistuff:piston_pusher", {
description = "Digilines Piston Pusher (you hacker you!)",
groups = {not_in_creative_inventory = 1},
is_ground_content = false,
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
tiles = {
"digistuff_piston_sides.png^[transformR180",
"digistuff_piston_sides.png",
"digistuff_piston_sides.png^[transformR90",
"digistuff_piston_sides.png^[transformR270",
"digistuff_camera_pole.png",
"digistuff_camera_pole.png",
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-0.5,-0.5,-0.5,0.5,0.5,-0.3},
{-0.2,-0.2,-0.3,0.2,0.2,0.5},
}
},
selection_box = {
type = "fixed",
fixed = {
{0,0,0,0,0,0},
}
},
digiline = {
wire = {
rules = {
{x = 1, y = 0, z = 0},
{x =-1, y = 0, z = 0},
{x = 0, y = 1, z = 0},
{x = 0, y =-1, z = 0},
{x = 0, y = 0, z = 1},
{x = 0, y = 0, z =-1},
},
},
},
})
mesecon.register_mvps_stopper("digistuff:piston_ext")
mesecon.register_mvps_stopper("digistuff:piston_pusher")
minetest.register_craft({
output = "digistuff:piston",
recipe = {
{"mesecons_pistons:piston_normal_off"},
{"mesecons_luacontroller:luacontroller0000"},
{"digilines:wire_std_00000000"},
},
})