added ability to disable most components via config file in world folder
authorVanessa Ezekowitz <vanessaezekowitz@gmail.com>
Sun, 14 Jul 2013 02:39:25 +0000 (22:39 -0400)
committerVanessa Ezekowitz <vanessaezekowitz@gmail.com>
Sun, 14 Jul 2013 02:39:25 +0000 (22:39 -0400)
moved pipes out of init.lua and into a separate file.
some minor formatting changes

default_settings.txt [new file with mode: 0644]
devices.lua
flowing_logic.lua
init.lua
pipes.lua [new file with mode: 0644]
tubes.lua

diff --git a/default_settings.txt b/default_settings.txt
new file mode 100644 (file)
index 0000000..d179e67
--- /dev/null
@@ -0,0 +1,17 @@
+-- Various settings
+
+enable_pipes = true
+enable_autocrafter = true
+enable_deployer = true
+enable_node_breaker = true
+enable_teleport_tube = true
+enable_pipe_devices = true
+enable_redefines = true
+enable_mese_tube = true
+enable_detector_tube = true
+enable_conductor_tube = true
+enable_accelerator_tube = true
+enable_crossing_tube = true
+enable_sand_tube = true
+enable_mese_sand_tube = true
+
index ae2a5d524bb01d291a9e1ad50db1f1fb7f9ab4dc..b29ae19a1f417abfbd2b037fe84c0ef39ba54aab 100644 (file)
@@ -89,8 +89,8 @@ for s in ipairs(states) do
        end
 
        local pumpboxes = {}
-       pipe_addbox(pumpboxes, pipe_pumpbody)
-       pipe_addbox(pumpboxes, pipe_topstub)
+       pipeworks_add_pipebox(pumpboxes, pipe_pumpbody)
+       pipeworks_add_pipebox(pumpboxes, pipe_topstub)
 
        minetest.register_node("pipeworks:pump_"..states[s], {
                description = "Pump/Intake Module",
@@ -134,14 +134,14 @@ for s in ipairs(states) do
        })
        
        local valveboxes = {}
-       pipe_addbox(valveboxes, pipe_leftstub)
-       pipe_addbox(valveboxes, pipe_valvebody)
+       pipeworks_add_pipebox(valveboxes, pipe_leftstub)
+       pipeworks_add_pipebox(valveboxes, pipe_valvebody)
        if states[s] == "off" then 
-               pipe_addbox(valveboxes, pipe_valvehandle_off)
+               pipeworks_add_pipebox(valveboxes, pipe_valvehandle_off)
        else
-               pipe_addbox(valveboxes, pipe_valvehandle_on)
+               pipeworks_add_pipebox(valveboxes, pipe_valvehandle_on)
        end
-       pipe_addbox(valveboxes, pipe_rightstub)
+       pipeworks_add_pipebox(valveboxes, pipe_rightstub)
        local tilex = "pipeworks_valvebody_ends.png"
        local tilez = "pipeworks_valvebody_sides.png"
 
@@ -189,10 +189,10 @@ for s in ipairs(states) do
 end
 
 local valveboxes = {}
-pipe_addbox(valveboxes, pipe_leftstub)
-pipe_addbox(valveboxes, pipe_valvebody)
-pipe_addbox(valveboxes, pipe_rightstub)
-pipe_addbox(valveboxes, pipe_valvehandle_on)
+pipeworks_add_pipebox(valveboxes, pipe_leftstub)
+pipeworks_add_pipebox(valveboxes, pipe_valvebody)
+pipeworks_add_pipebox(valveboxes, pipe_rightstub)
+pipeworks_add_pipebox(valveboxes, pipe_valvehandle_on)
 
 minetest.register_node("pipeworks:valve_on_loaded", {
        description = "Valve",
@@ -264,15 +264,15 @@ minetest.register_node("pipeworks:grating", {
 -- outlet spigot
 
        local spigotboxes = {}
-       pipe_addbox(spigotboxes, pipe_backstub)
-       pipe_addbox(spigotboxes, spigot_bottomstub)
-       pipe_addbox(spigotboxes, pipe_bendsphere)
+       pipeworks_add_pipebox(spigotboxes, pipe_backstub)
+       pipeworks_add_pipebox(spigotboxes, spigot_bottomstub)
+       pipeworks_add_pipebox(spigotboxes, pipe_bendsphere)
 
        local spigotboxes_pouring = {}
-       pipe_addbox(spigotboxes_pouring, spigot_stream)
-       pipe_addbox(spigotboxes_pouring, pipe_backstub)
-       pipe_addbox(spigotboxes_pouring, spigot_bottomstub)
-       pipe_addbox(spigotboxes_pouring, pipe_bendsphere)
+       pipeworks_add_pipebox(spigotboxes_pouring, spigot_stream)
+       pipeworks_add_pipebox(spigotboxes_pouring, pipe_backstub)
+       pipeworks_add_pipebox(spigotboxes_pouring, spigot_bottomstub)
+       pipeworks_add_pipebox(spigotboxes_pouring, pipe_bendsphere)
 
 minetest.register_node("pipeworks:spigot", {
        description = "Spigot outlet",
@@ -373,9 +373,9 @@ minetest.register_node("pipeworks:spigot_pouring", {
 -- wall, for use in places where walls should look like they're airtight)
 
 local airtightboxes = {}
-pipe_addbox(airtightboxes, pipe_frontstub)
-pipe_addbox(airtightboxes, pipe_backstub)
-pipe_addbox(airtightboxes, entry_panel)
+pipeworks_add_pipebox(airtightboxes, pipe_frontstub)
+pipeworks_add_pipebox(airtightboxes, pipe_backstub)
+pipeworks_add_pipebox(airtightboxes, entry_panel)
 
 minetest.register_node("pipeworks:entry_panel_empty", {
        description = "Airtight Pipe entry/exit",
@@ -500,9 +500,9 @@ minetest.register_node("pipeworks:entry_panel_loaded", {
 })
 
 local sensorboxes = {}
-pipe_addbox(sensorboxes, pipe_leftstub)
-pipe_addbox(sensorboxes, pipe_sensorbody)
-pipe_addbox(sensorboxes, pipe_rightstub)
+pipeworks_add_pipebox(sensorboxes, pipe_leftstub)
+pipeworks_add_pipebox(sensorboxes, pipe_sensorbody)
+pipeworks_add_pipebox(sensorboxes, pipe_rightstub)
 
 minetest.register_node("pipeworks:flow_sensor_empty", {
        description = "Flow Sensor",
index 7bf8297a43c00fd8a10df685805205a9b814d155..011f0c337b9655c657876cc60f535c1425824573 100644 (file)
@@ -1,12 +1,12 @@
 -- This file provides the actual flow and pathfinding logic that makes water
 -- move through the pipes.
 --
--- Contributed by mauvebic, 2013-01-03, with tweaks by Vanessa Ezekowitz
+-- Contributed by mauvebic, 2013-01-03, rewritten a bit by Vanessa Ezekowitz
 --
 
 local finitewater = minetest.setting_getbool("liquid_finite")
 
-local check4liquids = function(pos)
+pipeworks_check_for_liquids = function(pos)
        local coords = {
                {x=pos.x,y=pos.y-1,z=pos.z},
                {x=pos.x,y=pos.y+1,z=pos.z},
@@ -24,7 +24,7 @@ local check4liquids = function(pos)
        return false
 end
 
-local check4inflows = function(pos,node)
+pipeworks_check_for_inflows = function(pos,node)
        local coords = {
                {x=pos.x,y=pos.y-1,z=pos.z},
                {x=pos.x,y=pos.y+1,z=pos.z},
@@ -37,7 +37,7 @@ local check4inflows = function(pos,node)
        for i =1,6 do
                if newnode then break end
                local name = minetest.get_node(coords[i]).name
-               if (name == "pipeworks:pump_on" and check4liquids(coords[i])) or string.find(name,"_loaded") then
+               if (name == "pipeworks:pump_on" and pipeworks_check_for_liquids(coords[i])) or string.find(name,"_loaded") then
                        if string.find(name,"_loaded") then
                                local source = minetest.get_meta(coords[i]):get_string("source")
                                if source == minetest.pos_to_string(pos) then break end
@@ -52,12 +52,12 @@ local check4inflows = function(pos,node)
        end
 end
 
-local checksources = function(pos,node)
+pipeworks_check_sources = function(pos,node)
        local sourcepos = minetest.string_to_pos(minetest.get_meta(pos):get_string("source"))
        if not sourcepos then return end
        local source = minetest.get_node(sourcepos).name
        local newnode = false
-       if not ((source == "pipeworks:pump_on" and check4liquids(sourcepos)) or string.find(source,"_loaded") or source == "ignore" ) then
+       if not ((source == "pipeworks:pump_on" and pipeworks_check_for_liquids(sourcepos)) or string.find(source,"_loaded") or source == "ignore" ) then
                newnode = string.gsub(node.name,"loaded","empty")
        end
 
@@ -67,7 +67,7 @@ local checksources = function(pos,node)
        end
 end
 
-local spigot_check = function(pos, node)
+pipeworks_spigot_check = function(pos, node)
        local belowname = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z}).name
        if belowname == "air" or belowname == "default:water_flowing" or belowname == "default:water_source" then 
                local spigotname = minetest.get_node(pos).name
@@ -96,34 +96,3 @@ local spigot_check = function(pos, node)
        end
 end
 
-table.insert(pipes_empty_nodenames,"pipeworks:valve_on_empty")
-table.insert(pipes_empty_nodenames,"pipeworks:valve_off_empty")
-table.insert(pipes_empty_nodenames,"pipeworks:entry_panel_empty")
-table.insert(pipes_empty_nodenames,"pipeworks:flow_sensor_empty")
-
-table.insert(pipes_full_nodenames,"pipeworks:valve_on_loaded")
-table.insert(pipes_full_nodenames,"pipeworks:entry_panel_loaded")
-table.insert(pipes_full_nodenames,"pipeworks:flow_sensor_loaded")
-
-minetest.register_abm({
-       nodenames = pipes_empty_nodenames,
-       interval = 1,
-       chance = 1,
-       action = function(pos, node, active_object_count, active_object_count_wider) check4inflows(pos,node) end
-})
-
-minetest.register_abm({
-       nodenames = pipes_full_nodenames,
-       interval = 1,
-       chance = 1,
-       action = function(pos, node, active_object_count, active_object_count_wider) checksources(pos,node) end
-})
-
-minetest.register_abm({
-       nodenames = {"pipeworks:spigot","pipeworks:spigot_pouring"},
-       interval = 1,
-       chance = 1,
-       action = function(pos, node, active_object_count, active_object_count_wider) 
-               spigot_check(pos,node)
-       end
-})
index b592d017dff2e9e49093419f6c07897f87709f22..020db122f30248e831bd3f5923b82323fbbf02b4 100644 (file)
--- a/init.lua
+++ b/init.lua
--- Pipeworks mod by Vanessa Ezekowitz - 2012-08-05
+-- Pipeworks mod by Vanessa Ezekowitz - 2013-07-13
 --
--- Entirely my own code.  This mod supplies various shapes of pipes
--- and devices that they can connect to such as pumps, valves, etc.
--- All pipes autoconnect as you lay them out, and devices will auto-
--- connect to them.
+-- This mod supplies various steel pipes and plastic pneumatic tubes
+-- and devices that they can connect to.
 --
 -- License: WTFPL
 --
 
-minetest.register_alias("pipeworks:pipe", "pipeworks:pipe_110000_empty")
-local DEBUG = false
-local CYCLIC = true
-
-pipeworks_liquid_texture = "default_water.png"
-
-pipe_leftstub = {
-       { -32/64, -2/64, -6/64,   1/64, 2/64, 6/64 },   -- pipe segment against -X face
-       { -32/64, -4/64, -5/64,   1/64, 4/64, 5/64 },
-       { -32/64, -5/64, -4/64,   1/64, 5/64, 4/64 },
-       { -32/64, -6/64, -2/64,   1/64, 6/64, 2/64 },
-
-       { -32/64, -3/64, -8/64, -30/64, 3/64, 8/64 },   -- (the flange for it)
-       { -32/64, -5/64, -7/64, -30/64, 5/64, 7/64 },
-       { -32/64, -6/64, -6/64, -30/64, 6/64, 6/64 },
-       { -32/64, -7/64, -5/64, -30/64, 7/64, 5/64 },
-       { -32/64, -8/64, -3/64, -30/64, 8/64, 3/64 }
-}
-
-pipe_rightstub = {
-       { -1/64, -2/64, -6/64,  32/64, 2/64, 6/64 },    -- pipe segment against +X face
-       { -1/64, -4/64, -5/64,  32/64, 4/64, 5/64 },
-       { -1/64, -5/64, -4/64,  32/64, 5/64, 4/64 },
-       { -1/64, -6/64, -2/64,  32/64, 6/64, 2/64 },
-
-       { 30/64, -3/64, -8/64, 32/64, 3/64, 8/64 },     -- (the flange for it)
-       { 30/64, -5/64, -7/64, 32/64, 5/64, 7/64 },
-       { 30/64, -6/64, -6/64, 32/64, 6/64, 6/64 },
-       { 30/64, -7/64, -5/64, 32/64, 7/64, 5/64 },
-       { 30/64, -8/64, -3/64, 32/64, 8/64, 3/64 }
-}
-
-pipe_bottomstub = {
-       { -2/64, -32/64, -6/64,   2/64, 1/64, 6/64 },   -- pipe segment against -Y face
-       { -4/64, -32/64, -5/64,   4/64, 1/64, 5/64 },
-       { -5/64, -32/64, -4/64,   5/64, 1/64, 4/64 },
-       { -6/64, -32/64, -2/64,   6/64, 1/64, 2/64 },
-
-       { -3/64, -32/64, -8/64, 3/64, -30/64, 8/64 },   -- (the flange for it)
-       { -5/64, -32/64, -7/64, 5/64, -30/64, 7/64 },
-       { -6/64, -32/64, -6/64, 6/64, -30/64, 6/64 },
-       { -7/64, -32/64, -5/64, 7/64, -30/64, 5/64 },
-       { -8/64, -32/64, -3/64, 8/64, -30/64, 3/64 }
-}
+-- Copy and/or read the config file
 
+local worldpath = minetest.get_worldpath()
+local modpath = minetest.get_modpath("pipeworks")
 
-pipe_topstub = {
-       { -2/64, -1/64, -6/64,   2/64, 32/64, 6/64 },   -- pipe segment against +Y face
-       { -4/64, -1/64, -5/64,   4/64, 32/64, 5/64 },
-       { -5/64, -1/64, -4/64,   5/64, 32/64, 4/64 },
-       { -6/64, -1/64, -2/64,   6/64, 32/64, 2/64 },
-
-       { -3/64, 30/64, -8/64, 3/64, 32/64, 8/64 },     -- (the flange for it)
-       { -5/64, 30/64, -7/64, 5/64, 32/64, 7/64 },
-       { -6/64, 30/64, -6/64, 6/64, 32/64, 6/64 },
-       { -7/64, 30/64, -5/64, 7/64, 32/64, 5/64 },
-       { -8/64, 30/64, -3/64, 8/64, 32/64, 3/64 }
-}
-
-pipe_frontstub = {
-       { -6/64, -2/64, -32/64,   6/64, 2/64, 1/64 },   -- pipe segment against -Z face
-       { -5/64, -4/64, -32/64,   5/64, 4/64, 1/64 },
-       { -4/64, -5/64, -32/64,   4/64, 5/64, 1/64 },
-       { -2/64, -6/64, -32/64,   2/64, 6/64, 1/64 },
-
-       { -8/64, -3/64, -32/64, 8/64, 3/64, -30/64 },   -- (the flange for it)
-       { -7/64, -5/64, -32/64, 7/64, 5/64, -30/64 },
-       { -6/64, -6/64, -32/64, 6/64, 6/64, -30/64 },
-       { -5/64, -7/64, -32/64, 5/64, 7/64, -30/64 },
-       { -3/64, -8/64, -32/64, 3/64, 8/64, -30/64 }
-}
+if io.open(worldpath.."/pipeworks_settings.txt","r") == nil then
 
-pipe_backstub = {
-       { -6/64, -2/64, -1/64,   6/64, 2/64, 32/64 },   -- pipe segment against -Z face
-       { -5/64, -4/64, -1/64,   5/64, 4/64, 32/64 },
-       { -4/64, -5/64, -1/64,   4/64, 5/64, 32/64 },
-       { -2/64, -6/64, -1/64,   2/64, 6/64, 32/64 },
+       dofile(modpath.."/default_settings.txt")
 
-       { -8/64, -3/64, 30/64, 8/64, 3/64, 32/64 },     -- (the flange for it)
-       { -7/64, -5/64, 30/64, 7/64, 5/64, 32/64 },
-       { -6/64, -6/64, 30/64, 6/64, 6/64, 32/64 },
-       { -5/64, -7/64, 30/64, 5/64, 7/64, 32/64 },
-       { -3/64, -8/64, 30/64, 3/64, 8/64, 32/64 }
-} 
+       io.input(modpath.."/default_settings.txt")
+       io.output(worldpath.."/pipeworks_settings.txt")
 
-pipe_selectboxes = {
-       { -32/64,  -8/64,  -8/64,  8/64,  8/64,  8/64 },
-       { -8/64 ,  -8/64,  -8/64, 32/64,  8/64,  8/64 },
-       { -8/64 , -32/64,  -8/64,  8/64,  8/64,  8/64 },
-       { -8/64 ,  -8/64,  -8/64,  8/64, 32/64,  8/64 },
-       { -8/64 ,  -8/64, -32/64,  8/64,  8/64,  8/64 },
-       { -8/64 ,  -8/64,  -8/64,  8/64,  8/64, 32/64 }
-}
+       local size = 2^13      -- good buffer size (8K)
+       while true do
+               local block = io.read(size)
+               if not block then break end
+               io.write(block)
+       end
 
-pipe_bendsphere = {    
-       { -4/64, -4/64, -4/64, 4/64, 4/64, 4/64 },
-       { -5/64, -3/64, -3/64, 5/64, 3/64, 3/64 },
-       { -3/64, -5/64, -3/64, 3/64, 5/64, 3/64 },
-       { -3/64, -3/64, -5/64, 3/64, 3/64, 5/64 }
-}
+else
+       dofile(worldpath.."/pipeworks_settings.txt")
+end
 
---  Functions
+-- Helper functions
 
 if minetest.get_modpath("unified_inventory") or not minetest.setting_getbool("creative_mode") then
        pipeworks_expect_infinite_stacks = false
@@ -117,13 +37,7 @@ else
        pipeworks_expect_infinite_stacks = true
 end
 
-dbg = function(s)
-       if DEBUG then
-               print('[PIPEWORKS] ' .. s)
-       end
-end
-
-function pipes_fix_image_names(table, replacement)
+function pipeworks_fix_image_names(table, replacement)
        outtable={}
        for i in ipairs(table) do
                outtable[i]=string.gsub(table[i], "_XXXXX", replacement)
@@ -132,7 +46,7 @@ function pipes_fix_image_names(table, replacement)
        return outtable
 end
 
-function pipe_addbox(t, b)
+function pipeworks_add_pipebox(t, b)
        for i in ipairs(b)
                do table.insert(t, b[i])
        end
@@ -171,200 +85,39 @@ function pipeworks_node_is_owned(pos, placer)
        end
 end
 
--- now define the nodes!
-
-pipes_empty_nodenames = {}
-pipes_full_nodenames = {}
-
-for xm = 0, 1 do
-for xp = 0, 1 do
-for ym = 0, 1 do
-for yp = 0, 1 do
-for zm = 0, 1 do
-for zp = 0, 1 do
-       local outboxes = {}
-       local outsel = {}
-       local outimgs = {}
-
-       if yp==1 then
-               pipe_addbox(outboxes, pipe_topstub)
-               table.insert(outsel, pipe_selectboxes[4])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-       if ym==1 then
-               pipe_addbox(outboxes, pipe_bottomstub)
-               table.insert(outsel, pipe_selectboxes[3])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-       if xp==1 then
-               pipe_addbox(outboxes, pipe_rightstub)
-               table.insert(outsel, pipe_selectboxes[2])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-       if xm==1 then
-               pipe_addbox(outboxes, pipe_leftstub)
-               table.insert(outsel, pipe_selectboxes[1])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-       if zp==1 then
-               pipe_addbox(outboxes, pipe_backstub)
-               table.insert(outsel, pipe_selectboxes[6])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-       if zm==1 then
-               pipe_addbox(outboxes, pipe_frontstub)
-               table.insert(outsel, pipe_selectboxes[5])
-               table.insert(outimgs, "pipeworks_pipe_end.png")
-       else
-               table.insert(outimgs, "pipeworks_plain.png")
-       end
-
-       local jx = xp+xm
-       local jy = yp+ym
-       local jz = zp+zm
-
-       if (jx+jy+jz) == 1 then
-               if xm == 1 then 
-                       table.remove(outimgs, 3)
-                       table.insert(outimgs, 3, "^pipeworks_plain.png")
+function pipeworks_replace_name(tbl,tr,name)
+       local ntbl={}
+       for key,i in pairs(tbl) do
+               if type(i)=="string" then
+                       ntbl[key]=string.gsub(i,tr,name)
+               elseif type(i)=="table" then
+                       ntbl[key]=pipeworks_replace_name(i,tr,name)
+               else
+                       ntbl[key]=i
                end
-               if xp == 1 then 
-                       table.remove(outimgs, 4)
-                       table.insert(outimgs, 4, "^pipeworks_plain.png")
-               end
-               if ym == 1 then 
-                       table.remove(outimgs, 1)
-                       table.insert(outimgs, 1, "^pipeworks_plain.png")
-               end
-               if xp == 1 then 
-                       table.remove(outimgs, 2)
-                       table.insert(outimgs, 2, "^pipeworks_plain.png")
-               end
-               if zm == 1 then 
-                       table.remove(outimgs, 5)
-                       table.insert(outimgs, 5, "^pipeworks_plain.png")
-               end
-               if zp == 1 then 
-                       table.remove(outimgs, 6)
-                       table.insert(outimgs, 6, "^pipeworks_plain.png")
-               end
-       end
-
-       if jx+jy+jz >= 2 then
-               pipe_addbox(outboxes, pipe_bendsphere)
-       end
-
-       if (jx==2 and jy~=2 and jz~=2) then
-               table.remove(outimgs, 5)
-               table.remove(outimgs, 5)
-               table.insert(outimgs, 5, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
-               table.insert(outimgs, 5, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
        end
-
-       if (jx~=2 and jy~=2 and jz==2) or (jx~=2 and jy==2 and jz~=2) then
-               table.remove(outimgs, 3)
-               table.remove(outimgs, 3)
-               table.insert(outimgs, 3, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
-               table.insert(outimgs, 3, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
-       end
-
-       local pname = xm..xp..ym..yp..zm..zp
-       local pgroups = ""
-
-       if pname ~= "110000" then
-               pgroups = {snappy=3, pipe=1, not_in_creative_inventory=1}
-               pipedesc = "Pipe segment (empty, "..pname..")... You hacker, you."
-               image = "pipeworks_plain.png"
-       else
-               pgroups = {snappy=3, pipe=1}
-               pipedesc = "Pipe segment"
-               image = nil
-       end
-
-       minetest.register_node("pipeworks:pipe_"..pname.."_empty", {
-               description = pipedesc,
-               drawtype = "nodebox",
-               tiles = pipes_fix_image_names(outimgs, "_empty"),
-               inventory_image = image,
-               sunlight_propagates=true,
-               paramtype = "light",
-               selection_box = {
-                       type = "fixed",
-                       fixed = outsel
-               },
-               node_box = {
-                       type = "fixed",
-                       fixed = outboxes
-               },
-               groups = pgroups,
-               sounds = default.node_sound_wood_defaults(),
-               walkable = true,
-               drop = "pipeworks:pipe_110000_empty",
-               after_place_node = function(pos)
-                       pipe_scanforobjects(pos)
-               end,
-               after_dig_node = function(pos)
-                       pipe_scanforobjects(pos)
-               end,
-       })
-
-       minetest.register_node("pipeworks:pipe_"..pname.."_loaded", {
-               description = "Pipe segment (loaded, "..pname..")... You hacker, you.",
-               drawtype = "nodebox",
-               tiles = pipes_fix_image_names(outimgs, "_loaded"),
-               inventory_image = image,
-               sunlight_propagates = true,
-               paramtype = "light",
-               selection_box = {
-                       type = "fixed",
-                       fixed = outsel
-               },
-               node_box = {
-                       type = "fixed",
-                       fixed = outboxes
-               },
-               groups = {snappy=3, pipe=1, not_in_creative_inventory=1},
-               sounds = default.node_sound_wood_defaults(),
-               walkable = true,
-               drop = "pipeworks:pipe_110000_empty",
-               after_place_node = function(pos)
-                       pipe_scanforobjects(pos)
-               end,
-               after_dig_node = function(pos)
-                       pipe_scanforobjects(pos)
-               end
-       })
-       table.insert(pipes_empty_nodenames,"pipeworks:pipe_"..pname.."_empty") -- for the abms
-       table.insert(pipes_full_nodenames,"pipeworks:pipe_"..pname.."_loaded") -- for bacon
-end
-end
-end
-end
-end
+       return ntbl
 end
 
-local modpath = minetest.get_modpath("pipeworks")
+-- Load the various parts of the mod
 
-dofile(modpath.."/tubes.lua")
-dofile(modpath.."/teleport_tube.lua")
-dofile(modpath.."/devices.lua")
 dofile(modpath.."/autoplace.lua")
-dofile(modpath.."/crafts.lua")
-dofile(modpath.."/flowing_logic.lua")
-dofile(modpath.."/compat.lua")
 dofile(modpath.."/item_transport.lua")
-dofile(modpath.."/autocrafter.lua")
-dofile(modpath.."/deployer.lua")
-dofile(modpath.."/node_breaker.lua")
+dofile(modpath.."/flowing_logic.lua")
+dofile(modpath.."/crafts.lua")
+
+dofile(modpath.."/tubes.lua")
+
+if enable_pipes then dofile(modpath.."/pipes.lua") end
+if enable_teleport_tube then dofile(modpath.."/teleport_tube.lua") end
+if enable_pipe_devices then dofile(modpath.."/devices.lua") end
+if enable_redefines then dofile(modpath.."/compat.lua") end
+if enable_autocrafter then dofile(modpath.."/autocrafter.lua") end
+if enable_deployer then dofile(modpath.."/deployer.lua") end
+if enable_node_breaker then dofile(modpath.."/node_breaker.lua") end
+
+minetest.register_alias("pipeworks:pipe", "pipeworks:pipe_110000_empty")
+local DEBUG = false
+local CYCLIC = true
 
 print("Pipeworks loaded!")
diff --git a/pipes.lua b/pipes.lua
new file mode 100644 (file)
index 0000000..15561f8
--- /dev/null
+++ b/pipes.lua
@@ -0,0 +1,314 @@
+pipeworks_liquid_texture = "default_water.png"
+
+pipe_leftstub = {
+       { -32/64, -2/64, -6/64,   1/64, 2/64, 6/64 },   -- pipe segment against -X face
+       { -32/64, -4/64, -5/64,   1/64, 4/64, 5/64 },
+       { -32/64, -5/64, -4/64,   1/64, 5/64, 4/64 },
+       { -32/64, -6/64, -2/64,   1/64, 6/64, 2/64 },
+
+       { -32/64, -3/64, -8/64, -30/64, 3/64, 8/64 },   -- (the flange for it)
+       { -32/64, -5/64, -7/64, -30/64, 5/64, 7/64 },
+       { -32/64, -6/64, -6/64, -30/64, 6/64, 6/64 },
+       { -32/64, -7/64, -5/64, -30/64, 7/64, 5/64 },
+       { -32/64, -8/64, -3/64, -30/64, 8/64, 3/64 }
+}
+
+pipe_rightstub = {
+       { -1/64, -2/64, -6/64,  32/64, 2/64, 6/64 },    -- pipe segment against +X face
+       { -1/64, -4/64, -5/64,  32/64, 4/64, 5/64 },
+       { -1/64, -5/64, -4/64,  32/64, 5/64, 4/64 },
+       { -1/64, -6/64, -2/64,  32/64, 6/64, 2/64 },
+
+       { 30/64, -3/64, -8/64, 32/64, 3/64, 8/64 },     -- (the flange for it)
+       { 30/64, -5/64, -7/64, 32/64, 5/64, 7/64 },
+       { 30/64, -6/64, -6/64, 32/64, 6/64, 6/64 },
+       { 30/64, -7/64, -5/64, 32/64, 7/64, 5/64 },
+       { 30/64, -8/64, -3/64, 32/64, 8/64, 3/64 }
+}
+
+pipe_bottomstub = {
+       { -2/64, -32/64, -6/64,   2/64, 1/64, 6/64 },   -- pipe segment against -Y face
+       { -4/64, -32/64, -5/64,   4/64, 1/64, 5/64 },
+       { -5/64, -32/64, -4/64,   5/64, 1/64, 4/64 },
+       { -6/64, -32/64, -2/64,   6/64, 1/64, 2/64 },
+
+       { -3/64, -32/64, -8/64, 3/64, -30/64, 8/64 },   -- (the flange for it)
+       { -5/64, -32/64, -7/64, 5/64, -30/64, 7/64 },
+       { -6/64, -32/64, -6/64, 6/64, -30/64, 6/64 },
+       { -7/64, -32/64, -5/64, 7/64, -30/64, 5/64 },
+       { -8/64, -32/64, -3/64, 8/64, -30/64, 3/64 }
+}
+
+
+pipe_topstub = {
+       { -2/64, -1/64, -6/64,   2/64, 32/64, 6/64 },   -- pipe segment against +Y face
+       { -4/64, -1/64, -5/64,   4/64, 32/64, 5/64 },
+       { -5/64, -1/64, -4/64,   5/64, 32/64, 4/64 },
+       { -6/64, -1/64, -2/64,   6/64, 32/64, 2/64 },
+
+       { -3/64, 30/64, -8/64, 3/64, 32/64, 8/64 },     -- (the flange for it)
+       { -5/64, 30/64, -7/64, 5/64, 32/64, 7/64 },
+       { -6/64, 30/64, -6/64, 6/64, 32/64, 6/64 },
+       { -7/64, 30/64, -5/64, 7/64, 32/64, 5/64 },
+       { -8/64, 30/64, -3/64, 8/64, 32/64, 3/64 }
+}
+
+pipe_frontstub = {
+       { -6/64, -2/64, -32/64,   6/64, 2/64, 1/64 },   -- pipe segment against -Z face
+       { -5/64, -4/64, -32/64,   5/64, 4/64, 1/64 },
+       { -4/64, -5/64, -32/64,   4/64, 5/64, 1/64 },
+       { -2/64, -6/64, -32/64,   2/64, 6/64, 1/64 },
+
+       { -8/64, -3/64, -32/64, 8/64, 3/64, -30/64 },   -- (the flange for it)
+       { -7/64, -5/64, -32/64, 7/64, 5/64, -30/64 },
+       { -6/64, -6/64, -32/64, 6/64, 6/64, -30/64 },
+       { -5/64, -7/64, -32/64, 5/64, 7/64, -30/64 },
+       { -3/64, -8/64, -32/64, 3/64, 8/64, -30/64 }
+}
+
+pipe_backstub = {
+       { -6/64, -2/64, -1/64,   6/64, 2/64, 32/64 },   -- pipe segment against -Z face
+       { -5/64, -4/64, -1/64,   5/64, 4/64, 32/64 },
+       { -4/64, -5/64, -1/64,   4/64, 5/64, 32/64 },
+       { -2/64, -6/64, -1/64,   2/64, 6/64, 32/64 },
+
+       { -8/64, -3/64, 30/64, 8/64, 3/64, 32/64 },     -- (the flange for it)
+       { -7/64, -5/64, 30/64, 7/64, 5/64, 32/64 },
+       { -6/64, -6/64, 30/64, 6/64, 6/64, 32/64 },
+       { -5/64, -7/64, 30/64, 5/64, 7/64, 32/64 },
+       { -3/64, -8/64, 30/64, 3/64, 8/64, 32/64 }
+} 
+
+pipe_selectboxes = {
+       { -32/64,  -8/64,  -8/64,  8/64,  8/64,  8/64 },
+       { -8/64 ,  -8/64,  -8/64, 32/64,  8/64,  8/64 },
+       { -8/64 , -32/64,  -8/64,  8/64,  8/64,  8/64 },
+       { -8/64 ,  -8/64,  -8/64,  8/64, 32/64,  8/64 },
+       { -8/64 ,  -8/64, -32/64,  8/64,  8/64,  8/64 },
+       { -8/64 ,  -8/64,  -8/64,  8/64,  8/64, 32/64 }
+}
+
+pipe_bendsphere = {    
+       { -4/64, -4/64, -4/64, 4/64, 4/64, 4/64 },
+       { -5/64, -3/64, -3/64, 5/64, 3/64, 3/64 },
+       { -3/64, -5/64, -3/64, 3/64, 5/64, 3/64 },
+       { -3/64, -3/64, -5/64, 3/64, 3/64, 5/64 }
+}
+
+-- now define the nodes!
+
+pipes_empty_nodenames = {}
+pipes_full_nodenames = {}
+
+for xm = 0, 1 do
+for xp = 0, 1 do
+for ym = 0, 1 do
+for yp = 0, 1 do
+for zm = 0, 1 do
+for zp = 0, 1 do
+       local outboxes = {}
+       local outsel = {}
+       local outimgs = {}
+
+       if yp==1 then
+               pipeworks_add_pipebox(outboxes, pipe_topstub)
+               table.insert(outsel, pipe_selectboxes[4])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+       if ym==1 then
+               pipeworks_add_pipebox(outboxes, pipe_bottomstub)
+               table.insert(outsel, pipe_selectboxes[3])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+       if xp==1 then
+               pipeworks_add_pipebox(outboxes, pipe_rightstub)
+               table.insert(outsel, pipe_selectboxes[2])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+       if xm==1 then
+               pipeworks_add_pipebox(outboxes, pipe_leftstub)
+               table.insert(outsel, pipe_selectboxes[1])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+       if zp==1 then
+               pipeworks_add_pipebox(outboxes, pipe_backstub)
+               table.insert(outsel, pipe_selectboxes[6])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+       if zm==1 then
+               pipeworks_add_pipebox(outboxes, pipe_frontstub)
+               table.insert(outsel, pipe_selectboxes[5])
+               table.insert(outimgs, "pipeworks_pipe_end.png")
+       else
+               table.insert(outimgs, "pipeworks_plain.png")
+       end
+
+       local jx = xp+xm
+       local jy = yp+ym
+       local jz = zp+zm
+
+       if (jx+jy+jz) == 1 then
+               if xm == 1 then 
+                       table.remove(outimgs, 3)
+                       table.insert(outimgs, 3, "^pipeworks_plain.png")
+               end
+               if xp == 1 then 
+                       table.remove(outimgs, 4)
+                       table.insert(outimgs, 4, "^pipeworks_plain.png")
+               end
+               if ym == 1 then 
+                       table.remove(outimgs, 1)
+                       table.insert(outimgs, 1, "^pipeworks_plain.png")
+               end
+               if xp == 1 then 
+                       table.remove(outimgs, 2)
+                       table.insert(outimgs, 2, "^pipeworks_plain.png")
+               end
+               if zm == 1 then 
+                       table.remove(outimgs, 5)
+                       table.insert(outimgs, 5, "^pipeworks_plain.png")
+               end
+               if zp == 1 then 
+                       table.remove(outimgs, 6)
+                       table.insert(outimgs, 6, "^pipeworks_plain.png")
+               end
+       end
+
+       if jx+jy+jz >= 2 then
+               pipeworks_add_pipebox(outboxes, pipe_bendsphere)
+       end
+
+       if (jx==2 and jy~=2 and jz~=2) then
+               table.remove(outimgs, 5)
+               table.remove(outimgs, 5)
+               table.insert(outimgs, 5, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
+               table.insert(outimgs, 5, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
+       end
+
+       if (jx~=2 and jy~=2 and jz==2) or (jx~=2 and jy==2 and jz~=2) then
+               table.remove(outimgs, 3)
+               table.remove(outimgs, 3)
+               table.insert(outimgs, 3, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
+               table.insert(outimgs, 3, pipeworks_liquid_texture.."^pipeworks_windowed_XXXXX.png")
+       end
+
+       local pname = xm..xp..ym..yp..zm..zp
+       local pgroups = ""
+
+       if pname ~= "110000" then
+               pgroups = {snappy=3, pipe=1, not_in_creative_inventory=1}
+               pipedesc = "Pipe segment (empty, "..pname..")... You hacker, you."
+               image = "pipeworks_plain.png"
+       else
+               pgroups = {snappy=3, pipe=1}
+               pipedesc = "Pipe segment"
+               image = nil
+       end
+
+       minetest.register_node("pipeworks:pipe_"..pname.."_empty", {
+               description = pipedesc,
+               drawtype = "nodebox",
+               tiles = pipeworks_fix_image_names(outimgs, "_empty"),
+               inventory_image = image,
+               sunlight_propagates=true,
+               paramtype = "light",
+               selection_box = {
+                       type = "fixed",
+                       fixed = outsel
+               },
+               node_box = {
+                       type = "fixed",
+                       fixed = outboxes
+               },
+               groups = pgroups,
+               sounds = default.node_sound_wood_defaults(),
+               walkable = true,
+               drop = "pipeworks:pipe_110000_empty",
+               after_place_node = function(pos)
+                       pipe_scanforobjects(pos)
+               end,
+               after_dig_node = function(pos)
+                       pipe_scanforobjects(pos)
+               end,
+       })
+
+       minetest.register_node("pipeworks:pipe_"..pname.."_loaded", {
+               description = "Pipe segment (loaded, "..pname..")... You hacker, you.",
+               drawtype = "nodebox",
+               tiles = pipeworks_fix_image_names(outimgs, "_loaded"),
+               inventory_image = image,
+               sunlight_propagates = true,
+               paramtype = "light",
+               selection_box = {
+                       type = "fixed",
+                       fixed = outsel
+               },
+               node_box = {
+                       type = "fixed",
+                       fixed = outboxes
+               },
+               groups = {snappy=3, pipe=1, not_in_creative_inventory=1},
+               sounds = default.node_sound_wood_defaults(),
+               walkable = true,
+               drop = "pipeworks:pipe_110000_empty",
+               after_place_node = function(pos)
+                       pipe_scanforobjects(pos)
+               end,
+               after_dig_node = function(pos)
+                       pipe_scanforobjects(pos)
+               end
+       })
+       table.insert(pipes_empty_nodenames,"pipeworks:pipe_"..pname.."_empty") -- for the abms
+       table.insert(pipes_full_nodenames,"pipeworks:pipe_"..pname.."_loaded") -- for bacon
+end
+end
+end
+end
+end
+end
+
+table.insert(pipes_empty_nodenames,"pipeworks:valve_on_empty")
+table.insert(pipes_empty_nodenames,"pipeworks:valve_off_empty")
+table.insert(pipes_empty_nodenames,"pipeworks:entry_panel_empty")
+table.insert(pipes_empty_nodenames,"pipeworks:flow_sensor_empty")
+
+table.insert(pipes_full_nodenames,"pipeworks:valve_on_loaded")
+table.insert(pipes_full_nodenames,"pipeworks:entry_panel_loaded")
+table.insert(pipes_full_nodenames,"pipeworks:flow_sensor_loaded")
+
+minetest.register_abm({
+       nodenames = pipes_empty_nodenames,
+       interval = 1,
+       chance = 1,
+       action = function(pos, node, active_object_count, active_object_count_wider)
+               pipeworks_check_for_inflows(pos,node)
+       end
+})
+
+minetest.register_abm({
+       nodenames = pipes_full_nodenames,
+       interval = 1,
+       chance = 1,
+       action = function(pos, node, active_object_count, active_object_count_wider)
+               pipeworks_check_sources(pos,node)
+       end
+})
+
+minetest.register_abm({
+       nodenames = {"pipeworks:spigot","pipeworks:spigot_pouring"},
+       interval = 1,
+       chance = 1,
+       action = function(pos, node, active_object_count, active_object_count_wider) 
+               pipeworks_spigot_check(pos,node)
+       end
+})
index dc1e95a23a6fd1fc78ad4e3ce6bfec221278ec7c..d38cf29b435aca221af9ea318987f3aed593e4de 100644 (file)
--- a/tubes.lua
+++ b/tubes.lua
@@ -1,35 +1,4 @@
--- This file supplies pneumatic tubes and a 'test' device
-
-minetest.register_node("pipeworks:testobject", {
-       description = "Pneumatic tube test object",
-       tiles = {
-               "pipeworks_testobject.png",
-       },
-       paramtype = "light",
-       groups = {snappy=3, tubedevice=1},
-       sounds = default.node_sound_wood_defaults(),
-       walkable = true,
-       after_place_node = function(pos)
-                       tube_scanforobjects(pos)
-       end,
-       after_dig_node = function(pos)
-                       tube_scanforobjects(pos)
-       end,
-})
-
-function replace_name(tbl,tr,name)
-       local ntbl={}
-       for key,i in pairs(tbl) do
-               if type(i)=="string" then
-                       ntbl[key]=string.gsub(i,tr,name)
-               elseif type(i)=="table" then
-                       ntbl[key]=replace_name(i,tr,name)
-               else
-                       ntbl[key]=i
-               end
-       end
-       return ntbl
-end
+-- This file supplies the various kinds of pneumatic tubes
 
 tubenodes={}
 
@@ -242,7 +211,7 @@ for zp = 0, 1 do
                                nodedef.groups[group]=val
                        end
                elseif type(value)=="table" then
-                       nodedef[key]=replace_name(value,"#id",tname)
+                       nodedef[key]=pipeworks_replace_name(value,"#id",tname)
                elseif type(value)=="string" then
                        nodedef[key]=string.gsub(value,"#id",tname)
                else
@@ -263,6 +232,7 @@ end
 end
 end
 
+
 noctr_textures={"pipeworks_tube_noctr.png","pipeworks_tube_noctr.png","pipeworks_tube_noctr.png",
                "pipeworks_tube_noctr.png","pipeworks_tube_noctr.png","pipeworks_tube_noctr.png"}
 plain_textures={"pipeworks_tube_plain.png","pipeworks_tube_plain.png","pipeworks_tube_plain.png",
@@ -274,306 +244,332 @@ inv_texture="pipeworks_tube_inv.png"
 
 register_tube("pipeworks:tube","Pneumatic tube segment",plain_textures,noctr_textures,end_textures,short_texture,inv_texture)
 
-mese_noctr_textures={"pipeworks_mese_tube_noctr_1.png","pipeworks_mese_tube_noctr_2.png","pipeworks_mese_tube_noctr_3.png",
-               "pipeworks_mese_tube_noctr_4.png","pipeworks_mese_tube_noctr_5.png","pipeworks_mese_tube_noctr_6.png"}
-
-mese_plain_textures={"pipeworks_mese_tube_plain_1.png","pipeworks_mese_tube_plain_2.png","pipeworks_mese_tube_plain_3.png",
-               "pipeworks_mese_tube_plain_4.png","pipeworks_mese_tube_plain_5.png","pipeworks_mese_tube_plain_6.png"}
-mese_end_textures={"pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png",
-               "pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png"}
-mese_short_texture="pipeworks_mese_tube_short.png"
-mese_inv_texture="pipeworks_mese_tube_inv.png"
-
-detector_plain_textures={"pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png",
-               "pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png"}
-detector_inv_texture="pipeworks_detector_tube_inv.png"
-
-meseadjlist={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=0,y=1,z=0},{x=0,y=-1,z=0},{x=1,y=0,z=0},{x=-1,y=0,z=0}}
-
-register_tube("pipeworks:mese_tube","Mese pneumatic tube segment",mese_plain_textures,mese_noctr_textures,
-       mese_end_textures,mese_short_texture,mese_inv_texture,
-       {tube={can_go=function(pos,node,velocity,stack)
-               tbl={}
-               local meta=minetest.get_meta(pos)
-               local inv=meta:get_inventory()
-               local found=false
-               local name=stack:get_name()
-               for i,vect in ipairs(meseadjlist) do
-                       if meta:get_int("l"..tostring(i).."s")==1 then
-                               for _,st in ipairs(inv:get_list("line"..tostring(i))) do
-                                       if st:get_name()==name then
-                                               found=true
-                                               table.insert(tbl,vect)
+
+
+if enable_mese_tube then
+
+       mese_noctr_textures={"pipeworks_mese_tube_noctr_1.png","pipeworks_mese_tube_noctr_2.png","pipeworks_mese_tube_noctr_3.png",
+                       "pipeworks_mese_tube_noctr_4.png","pipeworks_mese_tube_noctr_5.png","pipeworks_mese_tube_noctr_6.png"}
+       mese_plain_textures={"pipeworks_mese_tube_plain_1.png","pipeworks_mese_tube_plain_2.png","pipeworks_mese_tube_plain_3.png",
+                       "pipeworks_mese_tube_plain_4.png","pipeworks_mese_tube_plain_5.png","pipeworks_mese_tube_plain_6.png"}
+       mese_end_textures={"pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png",
+                       "pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png","pipeworks_mese_tube_end.png"}
+       mese_short_texture="pipeworks_mese_tube_short.png"
+       mese_inv_texture="pipeworks_mese_tube_inv.png"
+
+       meseadjlist={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=0,y=1,z=0},{x=0,y=-1,z=0},{x=1,y=0,z=0},{x=-1,y=0,z=0}}
+
+       register_tube("pipeworks:mese_tube","Mese pneumatic tube segment",mese_plain_textures,mese_noctr_textures,
+               mese_end_textures,mese_short_texture,mese_inv_texture,
+               {tube={can_go=function(pos,node,velocity,stack)
+                       tbl={}
+                       local meta=minetest.get_meta(pos)
+                       local inv=meta:get_inventory()
+                       local found=false
+                       local name=stack:get_name()
+                       for i,vect in ipairs(meseadjlist) do
+                               if meta:get_int("l"..tostring(i).."s")==1 then
+                                       for _,st in ipairs(inv:get_list("line"..tostring(i))) do
+                                               if st:get_name()==name then
+                                                       found=true
+                                                       table.insert(tbl,vect)
+                                               end
                                        end
                                end
                        end
-               end
-               if found==false then
-                       for i,vect in ipairs(meseadjlist) do
-                               if meta:get_int("l"..tostring(i).."s")==1 then
-                                       if inv:is_empty("line"..tostring(i)) then
-                                               table.insert(tbl,vect)
+                       if found==false then
+                               for i,vect in ipairs(meseadjlist) do
+                                       if meta:get_int("l"..tostring(i).."s")==1 then
+                                               if inv:is_empty("line"..tostring(i)) then
+                                                       table.insert(tbl,vect)
+                                               end
                                        end
                                end
                        end
-               end
-               return tbl
-       end},
-       on_construct = function(pos)
-               local meta = minetest.get_meta(pos)
-               local inv = meta:get_inventory()
-               for i=1,6 do
-                       meta:set_int("l"..tostring(i).."s",1)
-                       inv:set_size("line"..tostring(i), 6*1)
-               end
-               meta:set_string("formspec",
-                               "size[8,11]"..
-                               "list[current_name;line1;1,0;6,1;]"..
-                               "list[current_name;line2;1,1;6,1;]"..
-                               "list[current_name;line3;1,2;6,1;]"..
-                               "list[current_name;line4;1,3;6,1;]"..
-                               "list[current_name;line5;1,4;6,1;]"..
-                               "list[current_name;line6;1,5;6,1;]"..
-                               "image[0,0;1,1;pipeworks_white.png]"..
-                               "image[0,1;1,1;pipeworks_black.png]"..
-                               "image[0,2;1,1;pipeworks_green.png]"..
-                               "image[0,3;1,1;pipeworks_yellow.png]"..
-                               "image[0,4;1,1;pipeworks_blue.png]"..
-                               "image[0,5;1,1;pipeworks_red.png]"..
-                               "button[7,0;1,1;button1;On]"..
-                               "button[7,1;1,1;button2;On]"..
-                               "button[7,2;1,1;button3;On]"..
-                               "button[7,3;1,1;button4;On]"..
-                               "button[7,4;1,1;button5;On]"..
-                               "button[7,5;1,1;button6;On]"..
-                               "list[current_player;main;0,7;8,4;]")
-               meta:set_string("infotext", "Mese pneumatic tube")
-       end,
-       on_receive_fields=function(pos,formname,fields,sender)
-               local meta=minetest.get_meta(pos)
-               local i
-               for key,_ in pairs(fields) do i=key end
-               if i==nil then return end
-               i=string.sub(i,-1)
-               newstate=1-meta:get_int("l"..i.."s")
-               meta:set_int("l"..i.."s",newstate)
-               local frm="size[8,11]"..
-                               "list[current_name;line1;1,0;6,1;]"..
-                               "list[current_name;line2;1,1;6,1;]"..
-                               "list[current_name;line3;1,2;6,1;]"..
-                               "list[current_name;line4;1,3;6,1;]"..
-                               "list[current_name;line5;1,4;6,1;]"..
-                               "list[current_name;line6;1,5;6,1;]"..
-                               "image[0,0;1,1;pipeworks_white.png]"..
-                               "image[0,1;1,1;pipeworks_black.png]"..
-                               "image[0,2;1,1;pipeworks_green.png]"..
-                               "image[0,3;1,1;pipeworks_yellow.png]"..
-                               "image[0,4;1,1;pipeworks_blue.png]"..
-                               "image[0,5;1,1;pipeworks_red.png]"
-               for i=1,6 do
-                       local st=meta:get_int("l"..tostring(i).."s")
-                       if st==0 then
-                               frm=frm.."button[7,"..tostring(i-1)..";1,1;button"..tostring(i)..";Off]"
-                       else
-                               frm=frm.."button[7,"..tostring(i-1)..";1,1;button"..tostring(i)..";On]"
+                       return tbl
+               end},
+               on_construct = function(pos)
+                       local meta = minetest.get_meta(pos)
+                       local inv = meta:get_inventory()
+                       for i=1,6 do
+                               meta:set_int("l"..tostring(i).."s",1)
+                               inv:set_size("line"..tostring(i), 6*1)
                        end
+                       meta:set_string("formspec",
+                                       "size[8,11]"..
+                                       "list[current_name;line1;1,0;6,1;]"..
+                                       "list[current_name;line2;1,1;6,1;]"..
+                                       "list[current_name;line3;1,2;6,1;]"..
+                                       "list[current_name;line4;1,3;6,1;]"..
+                                       "list[current_name;line5;1,4;6,1;]"..
+                                       "list[current_name;line6;1,5;6,1;]"..
+                                       "image[0,0;1,1;pipeworks_white.png]"..
+                                       "image[0,1;1,1;pipeworks_black.png]"..
+                                       "image[0,2;1,1;pipeworks_green.png]"..
+                                       "image[0,3;1,1;pipeworks_yellow.png]"..
+                                       "image[0,4;1,1;pipeworks_blue.png]"..
+                                       "image[0,5;1,1;pipeworks_red.png]"..
+                                       "button[7,0;1,1;button1;On]"..
+                                       "button[7,1;1,1;button2;On]"..
+                                       "button[7,2;1,1;button3;On]"..
+                                       "button[7,3;1,1;button4;On]"..
+                                       "button[7,4;1,1;button5;On]"..
+                                       "button[7,5;1,1;button6;On]"..
+                                       "list[current_player;main;0,7;8,4;]")
+                       meta:set_string("infotext", "Mese pneumatic tube")
+               end,
+               on_receive_fields=function(pos,formname,fields,sender)
+                       local meta=minetest.get_meta(pos)
+                       local i
+                       for key,_ in pairs(fields) do i=key end
+                       if i==nil then return end
+                       i=string.sub(i,-1)
+                       newstate=1-meta:get_int("l"..i.."s")
+                       meta:set_int("l"..i.."s",newstate)
+                       local frm="size[8,11]"..
+                                       "list[current_name;line1;1,0;6,1;]"..
+                                       "list[current_name;line2;1,1;6,1;]"..
+                                       "list[current_name;line3;1,2;6,1;]"..
+                                       "list[current_name;line4;1,3;6,1;]"..
+                                       "list[current_name;line5;1,4;6,1;]"..
+                                       "list[current_name;line6;1,5;6,1;]"..
+                                       "image[0,0;1,1;pipeworks_white.png]"..
+                                       "image[0,1;1,1;pipeworks_black.png]"..
+                                       "image[0,2;1,1;pipeworks_green.png]"..
+                                       "image[0,3;1,1;pipeworks_yellow.png]"..
+                                       "image[0,4;1,1;pipeworks_blue.png]"..
+                                       "image[0,5;1,1;pipeworks_red.png]"
+                       for i=1,6 do
+                               local st=meta:get_int("l"..tostring(i).."s")
+                               if st==0 then
+                                       frm=frm.."button[7,"..tostring(i-1)..";1,1;button"..tostring(i)..";Off]"
+                               else
+                                       frm=frm.."button[7,"..tostring(i-1)..";1,1;button"..tostring(i)..";On]"
+                               end
+                       end
+                       frm=frm.."list[current_player;main;0,7;8,4;]"
+                       meta:set_string("formspec",frm)
+               end,
+               can_dig = function(pos,player)
+                       local meta = minetest.get_meta(pos);
+                       local inv = meta:get_inventory()
+                       return (inv:is_empty("line1") and inv:is_empty("line2") and inv:is_empty("line3") and
+                               inv:is_empty("line4") and inv:is_empty("line5") and inv:is_empty("line6"))
                end
-               frm=frm.."list[current_player;main;0,7;8,4;]"
-               meta:set_string("formspec",frm)
-       end,
-       can_dig = function(pos,player)
-               local meta = minetest.get_meta(pos);
-               local inv = meta:get_inventory()
-               return (inv:is_empty("line1") and inv:is_empty("line2") and inv:is_empty("line3") and
-                       inv:is_empty("line4") and inv:is_empty("line5") and inv:is_empty("line6"))
-       end})
-
-
-mesecons_rules={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=1,y=0,z=0},{x=-1,y=0,z=0},{x=0,y=1,z=0},{x=0,y=-1,z=0}}
-
-register_tube("pipeworks:detector_tube_on","Detector tube segment on (you hacker you)",detector_plain_textures,noctr_textures,
-       end_textures,short_texture,detector_inv_texture,
-       {tube={can_go=function(pos,node,velocity,stack)
-               local meta = minetest.get_meta(pos)
-               local name = minetest.get_node(pos).name
-               local nitems=meta:get_int("nitems")+1
-               meta:set_int("nitems", nitems)
-               minetest.after(0.1,minetest.registered_nodes[name].item_exit,pos)
-               return notvel(meseadjlist,velocity)
-       end},
-       groups={mesecon=2,not_in_creative_inventory=1},
-       drop="pipeworks:detector_tube_off_000000",
-       mesecons={receptor={state="on",
-                               rules=mesecons_rules}},
-       item_exit = function(pos)
-               local meta = minetest.get_meta(pos)
-               local nitems=meta:get_int("nitems")-1
-               local name = minetest.get_node(pos).name
-               if nitems==0 then
-                       minetest.set_node(pos,{name=string.gsub(name,"on","off")})
-                       mesecon:receptor_off(pos,mesecons_rules)
-               else
-                       meta:set_int("nitems", nitems)
-               end
-       end,
-       on_construct = function(pos)
-               local meta = minetest.get_meta(pos)
-               meta:set_int("nitems", 1)
-               local name = minetest.get_node(pos).name
-               minetest.after(0.1,minetest.registered_nodes[name].item_exit,pos)
-       end})
-
-register_tube("pipeworks:detector_tube_off","Detector tube segment",detector_plain_textures,noctr_textures,
-       end_textures,short_texture,detector_inv_texture,
-       {tube={can_go=function(pos,node,velocity,stack)
-               local name = minetest.get_node(pos).name
-               minetest.set_node(pos,{name=string.gsub(name,"off","on")})
-               mesecon:receptor_on(pos,mesecons_rules)
-               return notvel(meseadjlist,velocity)
-       end},
-       groups={mesecon=2},
-       mesecons={receptor={state="off",
-                               rules=mesecons_rules}}})
-
-conductor_plain_textures={"pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png",
-               "pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png"}
-conductor_noctr_textures={"pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png",
-               "pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png"}
-conductor_end_textures={"pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png",
-               "pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png"}
-conductor_short_texture="pipeworks_conductor_tube_short.png"
-conductor_inv_texture="pipeworks_conductor_tube_inv.png"
-
-register_tube("pipeworks:conductor_tube_off","Conductor tube segment",conductor_plain_textures,conductor_noctr_textures,
-       conductor_end_textures,conductor_short_texture,conductor_inv_texture,
-       {groups={mesecon=2},
-       mesecons={conductor={state="off",
-                               rules=mesecons_rules,
-                               onstate="pipeworks:conductor_tube_on_#id"}}})
-
-conductor_on_plain_textures={"pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png",
-               "pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png"}
-conductor_on_noctr_textures={"pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png",
-               "pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png"}
-conductor_on_end_textures={"pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png",
-               "pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png"}
-
-register_tube("pipeworks:conductor_tube_on","Conductor tube segment on (you hacker you)",conductor_on_plain_textures,conductor_on_noctr_textures,
-       conductor_on_end_textures,conductor_short_texture,conductor_inv_texture,
-       {groups={mesecon=2,not_in_creative_inventory=1},
-       drop="pipeworks:conductor_tube_off_000000",
-       mesecons={conductor={state="on",
-                               rules=mesecons_rules,
-                               offstate="pipeworks:conductor_tube_off_#id"}}})
-
-accelerator_noctr_textures={"pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png",
-               "pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png"}
-accelerator_plain_textures={"pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png",
-               "pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png"}
-accelerator_end_textures={"pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png",
-               "pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png"}
-accelerator_short_texture="pipeworks_accelerator_tube_short.png"
-accelerator_inv_texture="pipeworks_accelerator_tube_inv.png"
-
-register_tube("pipeworks:accelerator_tube","Accelerator pneumatic tube segment",accelerator_plain_textures,
-               accelerator_noctr_textures,accelerator_end_textures,accelerator_short_texture,accelerator_inv_texture,
+       })
+end
+
+       mesecons_rules={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=1,y=0,z=0},{x=-1,y=0,z=0},{x=0,y=1,z=0},{x=0,y=-1,z=0}}
+
+
+if enable_detector_tube then
+
+       detector_plain_textures={"pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png",
+                       "pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png","pipeworks_detector_tube_plain.png"}
+       detector_inv_texture="pipeworks_detector_tube_inv.png"
+
+       register_tube("pipeworks:detector_tube_on","Detector tube segment on (you hacker you)",detector_plain_textures,noctr_textures,
+               end_textures,short_texture,detector_inv_texture,
                {tube={can_go=function(pos,node,velocity,stack)
-                       velocity.speed=velocity.speed+1
+                       local meta = minetest.get_meta(pos)
+                       local name = minetest.get_node(pos).name
+                       local nitems=meta:get_int("nitems")+1
+                       meta:set_int("nitems", nitems)
+                       minetest.after(0.1,minetest.registered_nodes[name].item_exit,pos)
                        return notvel(meseadjlist,velocity)
-               end}})
+               end},
+               groups={mesecon=2,not_in_creative_inventory=1},
+               drop="pipeworks:detector_tube_off_000000",
+               mesecons={receptor={state="on",
+                                       rules=mesecons_rules}},
+               item_exit = function(pos)
+                       local meta = minetest.get_meta(pos)
+                       local nitems=meta:get_int("nitems")-1
+                       local name = minetest.get_node(pos).name
+                       if nitems==0 then
+                               minetest.set_node(pos,{name=string.gsub(name,"on","off")})
+                               mesecon:receptor_off(pos,mesecons_rules)
+                       else
+                               meta:set_int("nitems", nitems)
+                       end
+               end,
+               on_construct = function(pos)
+                       local meta = minetest.get_meta(pos)
+                       meta:set_int("nitems", 1)
+                       local name = minetest.get_node(pos).name
+                       minetest.after(0.1,minetest.registered_nodes[name].item_exit,pos)
+               end})
 
-register_tube("pipeworks:crossing_tube","Crossing tube segment",accelerator_plain_textures,
-               accelerator_noctr_textures,accelerator_end_textures,accelerator_short_texture,accelerator_inv_texture,
+       register_tube("pipeworks:detector_tube_off","Detector tube segment",detector_plain_textures,noctr_textures,
+               end_textures,short_texture,detector_inv_texture,
                {tube={can_go=function(pos,node,velocity,stack)
-                       return velocity
-               end}})
-
-sand_noctr_textures={"pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png",
-               "pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png"}
-sand_plain_textures={"pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png",
-               "pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png"}
-sand_end_textures={"pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png",
-               "pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png"}
-sand_short_texture="pipeworks_sand_tube_short.png"
-sand_inv_texture="pipeworks_sand_tube_inv.png"
-
-register_tube("pipeworks:sand_tube","Sand pneumatic tube segment",sand_plain_textures,sand_noctr_textures,sand_end_textures,
-               sand_short_texture,sand_inv_texture,
-               {groups={sand_tube=1}})
-
-minetest.register_abm({nodenames={"group:sand_tube"},interval=1,chance=1,
-       action=function(pos, node, active_object_count, active_object_count_wider)
-               for _,object in ipairs(minetest.get_objects_inside_radius(pos, 2)) do
-                       if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
-                               if object:get_luaentity().itemstring ~= "" then
-                                       local titem=tube_item(pos,object:get_luaentity().itemstring)
-                                       titem:get_luaentity().start_pos = {x=pos.x,y=pos.y-1,z=pos.z}
-                                       titem:setvelocity({x=0.01,y=1,z=-0.01})
-                                       titem:setacceleration({x=0, y=0, z=0})
+                       local name = minetest.get_node(pos).name
+                       minetest.set_node(pos,{name=string.gsub(name,"off","on")})
+                       mesecon:receptor_on(pos,mesecons_rules)
+                       return notvel(meseadjlist,velocity)
+               end},
+               groups={mesecon=2},
+               mesecons={receptor={state="off",
+                                       rules=mesecons_rules}}
+       })
+end
+
+if enable_conductor_tube then
+
+       conductor_plain_textures={"pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png",
+                       "pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png","pipeworks_conductor_tube_plain.png"}
+       conductor_noctr_textures={"pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png",
+                       "pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png","pipeworks_conductor_tube_noctr.png"}
+       conductor_end_textures={"pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png",
+                       "pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png","pipeworks_conductor_tube_end.png"}
+       conductor_short_texture="pipeworks_conductor_tube_short.png"
+       conductor_inv_texture="pipeworks_conductor_tube_inv.png"
+
+       conductor_on_plain_textures={"pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png",
+                       "pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png","pipeworks_conductor_tube_on_plain.png"}
+       conductor_on_noctr_textures={"pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png",
+                       "pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png","pipeworks_conductor_tube_on_noctr.png"}
+       conductor_on_end_textures={"pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png",
+                       "pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png","pipeworks_conductor_tube_on_end.png"}
+
+       register_tube("pipeworks:conductor_tube_off","Conductor tube segment",conductor_plain_textures,conductor_noctr_textures,
+               conductor_end_textures,conductor_short_texture,conductor_inv_texture,
+               {groups={mesecon=2},
+               mesecons={conductor={state="off",
+                                       rules=mesecons_rules,
+                                       onstate="pipeworks:conductor_tube_on_#id"}}
+       })
+
+       register_tube("pipeworks:conductor_tube_on","Conductor tube segment on (you hacker you)",conductor_on_plain_textures,conductor_on_noctr_textures,
+               conductor_on_end_textures,conductor_short_texture,conductor_inv_texture,
+               {groups={mesecon=2,not_in_creative_inventory=1},
+               drop="pipeworks:conductor_tube_off_000000",
+               mesecons={conductor={state="on",
+                                       rules=mesecons_rules,
+                                       offstate="pipeworks:conductor_tube_off_#id"}}
+       })
+end
+
+if enable_accelerator_tube then
+
+       accelerator_noctr_textures={"pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png",
+                       "pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png","pipeworks_accelerator_tube_noctr.png"}
+       accelerator_plain_textures={"pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png",
+                       "pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png","pipeworks_accelerator_tube_plain.png"}
+       accelerator_end_textures={"pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png",
+                       "pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png","pipeworks_accelerator_tube_end.png"}
+       accelerator_short_texture="pipeworks_accelerator_tube_short.png"
+       accelerator_inv_texture="pipeworks_accelerator_tube_inv.png"
+
+       register_tube("pipeworks:accelerator_tube","Accelerator pneumatic tube segment",accelerator_plain_textures,
+                       accelerator_noctr_textures,accelerator_end_textures,accelerator_short_texture,accelerator_inv_texture,
+                       {tube={can_go=function(pos,node,velocity,stack)
+                               velocity.speed=velocity.speed+1
+                               return notvel(meseadjlist,velocity)
+                       end}
+       })
+end
+
+if enable_crossing_tube then
+       register_tube("pipeworks:crossing_tube","Crossing tube segment",accelerator_plain_textures,
+                       accelerator_noctr_textures,accelerator_end_textures,accelerator_short_texture,accelerator_inv_texture,
+                       {tube={can_go=function(pos,node,velocity,stack)
+                               return velocity
+                       end}
+       })
+end
+
+if enable_sand_tube then
+
+       sand_noctr_textures={"pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png",
+                       "pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png","pipeworks_sand_tube_noctr.png"}
+       sand_plain_textures={"pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png",
+                       "pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png","pipeworks_sand_tube_plain.png"}
+       sand_end_textures={"pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png",
+                       "pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png","pipeworks_sand_tube_end.png"}
+       sand_short_texture="pipeworks_sand_tube_short.png"
+       sand_inv_texture="pipeworks_sand_tube_inv.png"
+
+       register_tube("pipeworks:sand_tube","Sand pneumatic tube segment",sand_plain_textures,sand_noctr_textures,sand_end_textures,
+                       sand_short_texture,sand_inv_texture,
+                       {groups={sand_tube=1}})
+
+       minetest.register_abm({nodenames={"group:sand_tube"},interval=1,chance=1,
+               action=function(pos, node, active_object_count, active_object_count_wider)
+                       for _,object in ipairs(minetest.get_objects_inside_radius(pos, 2)) do
+                               if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
+                                       if object:get_luaentity().itemstring ~= "" then
+                                               local titem=tube_item(pos,object:get_luaentity().itemstring)
+                                               titem:get_luaentity().start_pos = {x=pos.x,y=pos.y-1,z=pos.z}
+                                               titem:setvelocity({x=0.01,y=1,z=-0.01})
+                                               titem:setacceleration({x=0, y=0, z=0})
+                                       end
+                                       object:get_luaentity().itemstring = ""
+                                       object:remove()
                                end
-                               object:get_luaentity().itemstring = ""
-                               object:remove()
                        end
                end
-       end
-})
-
-mese_sand_noctr_textures={"pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png",
-               "pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png"}
-mese_sand_plain_textures={"pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png",
-               "pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png"}
-mese_sand_end_textures={"pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png",
-               "pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png"}
-mese_sand_short_texture="pipeworks_mese_sand_tube_short.png"
-mese_sand_inv_texture="pipeworks_mese_sand_tube_inv.png"
-
-register_tube("pipeworks:mese_sand_tube","Mese sand pneumatic tube segment",mese_sand_plain_textures,mese_sand_noctr_textures,mese_sand_end_textures,
-               mese_sand_short_texture,mese_sand_inv_texture,
-               {groups={mese_sand_tube=1},
-       on_construct = function(pos)
-               local meta = minetest.env:get_meta(pos)
-    meta:set_int("dist", 0)
-               meta:set_string("formspec",
-                               "size[2,1]"..
-                               "field[.5,.5;1.5,1;dist;distance;${dist}]")
-               meta:set_string("infotext", "Mese sand pneumatic tube")
-       end,
-       on_receive_fields=function(pos,formname,fields,sender)
-               local meta=minetest.env:get_meta(pos)
-    local dist
-    _, dist = pcall(tonumber, fields.dist)
-    if dist and 0 <= dist and dist <= 8 then meta:set_int("dist", dist) end
-       end,
-})
-
-local function get_objects_with_square_radius(pos, rad)
-  rad = rad + .5;
-  local objs = {}
-  for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, math.sqrt(3)*rad)) do
-    if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
-      local opos = object:getpos()
-      if pos.x - rad <= opos.x and opos.x <= pos.x + rad and pos.y - rad <= opos.y and opos.y <= pos.y + rad and pos.z - rad <= opos.z and opos.z <= pos.z + rad then
-        objs[#objs + 1] = object
-      end
-    end
-  end
-  return objs
+       })
 end
 
-minetest.register_abm({nodenames={"group:mese_sand_tube"},interval=1,chance=1,
-       action=function(pos, node, active_object_count, active_object_count_wider)
-               for _,object in ipairs(get_objects_with_square_radius(pos, minetest.env:get_meta(pos):get_int("dist"))) do
-                       if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
-                               if object:get_luaentity().itemstring ~= "" then
-                                       local titem=tube_item(pos,object:get_luaentity().itemstring)
-                                       titem:get_luaentity().start_pos = {x=pos.x,y=pos.y-1,z=pos.z}
-                                       titem:setvelocity({x=0.01,y=1,z=-0.01})
-                                       titem:setacceleration({x=0, y=0, z=0})
+if enable_mese_sand_tube then
+
+       mese_sand_noctr_textures={"pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png",
+                       "pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png","pipeworks_mese_sand_tube_noctr.png"}
+       mese_sand_plain_textures={"pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png",
+                       "pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png","pipeworks_mese_sand_tube_plain.png"}
+       mese_sand_end_textures={"pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png",
+                       "pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png","pipeworks_mese_sand_tube_end.png"}
+       mese_sand_short_texture="pipeworks_mese_sand_tube_short.png"
+       mese_sand_inv_texture="pipeworks_mese_sand_tube_inv.png"
+
+       register_tube("pipeworks:mese_sand_tube","Mese sand pneumatic tube segment",mese_sand_plain_textures,mese_sand_noctr_textures,mese_sand_end_textures,
+                       mese_sand_short_texture,mese_sand_inv_texture,
+                       {groups={mese_sand_tube=1},
+               on_construct = function(pos)
+                       local meta = minetest.env:get_meta(pos)
+           meta:set_int("dist", 0)
+                       meta:set_string("formspec",
+                                       "size[2,1]"..
+                                       "field[.5,.5;1.5,1;dist;distance;${dist}]")
+                       meta:set_string("infotext", "Mese sand pneumatic tube")
+               end,
+               on_receive_fields=function(pos,formname,fields,sender)
+                       local meta=minetest.env:get_meta(pos)
+           local dist
+           _, dist = pcall(tonumber, fields.dist)
+           if dist and 0 <= dist and dist <= 8 then meta:set_int("dist", dist) end
+               end,
+       })
+
+       local function get_objects_with_square_radius(pos, rad)
+         rad = rad + .5;
+         local objs = {}
+         for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, math.sqrt(3)*rad)) do
+           if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
+             local opos = object:getpos()
+             if pos.x - rad <= opos.x and opos.x <= pos.x + rad and pos.y - rad <= opos.y and opos.y <= pos.y + rad and pos.z - rad <= opos.z and opos.z <= pos.z + rad then
+               objs[#objs + 1] = object
+             end
+           end
+         end
+         return objs
+       end
+
+       minetest.register_abm({nodenames={"group:mese_sand_tube"},interval=1,chance=1,
+               action=function(pos, node, active_object_count, active_object_count_wider)
+                       for _,object in ipairs(get_objects_with_square_radius(pos, minetest.env:get_meta(pos):get_int("dist"))) do
+                               if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
+                                       if object:get_luaentity().itemstring ~= "" then
+                                               local titem=tube_item(pos,object:get_luaentity().itemstring)
+                                               titem:get_luaentity().start_pos = {x=pos.x,y=pos.y-1,z=pos.z}
+                                               titem:setvelocity({x=0.01,y=1,z=-0.01})
+                                               titem:setacceleration({x=0, y=0, z=0})
+                                       end
+                                       object:get_luaentity().itemstring = ""
+                                       object:remove()
                                end
-                               object:get_luaentity().itemstring = ""
-                               object:remove()
                        end
                end
-       end
-})
-
+       })
+end