1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
|
-- ______
-- |
-- |
-- | __ ___ _ __ _ _
-- | | | | | |\ | | |_| | | | | |_ |_|
-- |___| |______ |__| | \| | | \ |__| |_ |_ |_ |\ tube
-- |
-- |
--
-- Reference
-- ports = get_real_port_states(pos): gets if inputs are powered from outside
-- newport = merge_port_states(state1, state2): just does result = state1 or state2 for every port
-- set_port(pos, rule, state): activates/deactivates the mesecons according to the port states
-- set_port_states(pos, ports): Applies new port states to a Luacontroller at pos
-- run(pos): runs the code in the controller at pos
-- reset_meta(pos, code, errmsg): performs a software-reset, installs new code and prints error messages
-- resetn(pos): performs a hardware reset, turns off all ports
--
-- The Sandbox
-- The whole code of the controller runs in a sandbox,
-- a very restricted environment.
-- Actually the only way to damage the server is to
-- use too much memory from the sandbox.
-- You can add more functions to the environment
-- (see where local env is defined)
-- Something nice to play is is appending minetest.env to it.
local BASENAME = "pipeworks:lua_tube"
local rules = {
red = {x = -1, y = 0, z = 0, name = "red"},
blue = {x = 1, y = 0, z = 0, name = "blue"},
yellow = {x = 0, y = -1, z = 0, name = "yellow"},
green = {x = 0, y = 1, z = 0, name = "green"},
black = {x = 0, y = 0, z = -1, name = "black"},
white = {x = 0, y = 0, z = 1, name = "white"},
}
------------------
-- Action stuff --
------------------
-- These helpers are required to set the port states of the lua_tube
local function update_real_port_states(pos, rule_name, new_state)
local meta = minetest.get_meta(pos)
if rule_name == nil then
meta:set_int("real_portstates", 1)
return
end
local n = meta:get_int("real_portstates") - 1
local L = {}
for i = 1, 6 do
L[i] = n % 2
n = math.floor(n / 2)
end
-- (0,0,-1) (0,-1,0) (-1,0,0) (1,0,0) (0,1,0) (0,0,1)
local pos_to_side = { 5, 3, 1, nil, 2, 4, 6 }
if rule_name.x == nil then
for _, rname in ipairs(rule_name) do
local port = pos_to_side[rname.x + (2 * rname.y) + (3 * rname.z) + 4]
L[port] = (newstate == "on") and 1 or 0
end
else
local port = pos_to_side[rule_name.x + (2 * rule_name.y) + (3 * rule_name.z) + 4]
L[port] = (new_state == "on") and 1 or 0
end
meta:set_int("real_portstates",
1 +
1 * L[1] +
2 * L[2] +
4 * L[3] +
8 * L[4] +
16 * L[5] +
32 * L[6])
end
local port_names = {"red", "blue", "yellow", "green", "black", "white"}
local function get_real_port_states(pos)
-- Determine if ports are powered (by itself or from outside)
local meta = minetest.get_meta(pos)
local L = {}
local n = meta:get_int("real_portstates") - 1
for _, name in ipairs(port_names) do
L[name] = ((n % 2) == 1)
n = math.floor(n / 2)
end
return L
end
local function merge_port_states(ports, vports)
return {
red = ports.red or vports.red,
blue = ports.blue or vports.blue,
yellow = ports.yellow or vports.yellow,
green = ports.green or vports.green,
black = ports.black or vports.black,
white = ports.white or vports.white,
}
end
local function generate_name(ports)
local red = ports.red and 1 or 0
local blue = ports.blue and 1 or 0
local yellow = ports.yellow and 1 or 0
local green = ports.green and 1 or 0
local black = ports.black and 1 or 0
local white = ports.white and 1 or 0
return BASENAME..white..black..green..yellow..blue..red
end
local function set_port(pos, rule, state)
if state then
mesecon.receptor_on(pos, {rule})
else
mesecon.receptor_off(pos, {rule})
end
end
local function clean_port_states(ports)
ports.red = ports.red and true or false
ports.blue = ports.blue and true or false
ports.yellow = ports.yellow and true or false
ports.green = ports.green and true or false
ports.black = ports.black and true or false
ports.white = ports.white and true or false
end
local function set_port_states(pos, ports)
local node = minetest.get_node(pos)
local name = node.name
clean_port_states(ports)
local vports = minetest.registered_nodes[name].virtual_portstates
local new_name = generate_name(ports)
if name ~= new_name and vports then
-- Problem:
-- We need to place the new node first so that when turning
-- off some port, it won't stay on because the rules indicate
-- there is an onstate output port there.
-- When turning the output off then, it will however cause feedback
-- so that the lua_tube will receive an "off" event by turning
-- its output off.
-- Solution / Workaround:
-- Remember which output was turned off and ignore next "off" event.
local meta = minetest.get_meta(pos)
local ign = minetest.deserialize(meta:get_string("ignore_offevents")) or {}
if ports.red and not vports.red and not mesecon.is_powered(pos, rules.red) then ign.red = true end
if ports.blue and not vports.blue and not mesecon.is_powered(pos, rules.blue) then ign.blue = true end
if ports.yellow and not vports.yellow and not mesecon.is_powered(pos, rules.yellow) then ign.yellow = true end
if ports.green and not vports.green and not mesecon.is_powered(pos, rules.green) then ign.green = true end
if ports.black and not vports.black and not mesecon.is_powered(pos, rules.black) then ign.black = true end
if ports.white and not vports.white and not mesecon.is_powered(pos, rules.white) then ign.white = true end
meta:set_string("ignore_offevents", minetest.serialize(ign))
minetest.swap_node(pos, {name = new_name, param2 = node.param2})
if ports.red ~= vports.red then set_port(pos, rules.red, ports.red) end
if ports.blue ~= vports.blue then set_port(pos, rules.blue, ports.blue) end
if ports.yellow ~= vports.yellow then set_port(pos, rules.yellow, ports.yellow) end
if ports.green ~= vports.green then set_port(pos, rules.green, ports.green) end
if ports.black ~= vports.black then set_port(pos, rules.black, ports.black) end
if ports.white ~= vports.white then set_port(pos, rules.white, ports.white) end
end
end
-----------------
-- Overheating --
-----------------
local function burn_controller(pos)
local node = minetest.get_node(pos)
node.name = BASENAME.."_burnt"
minetest.swap_node(pos, node)
minetest.get_meta(pos):set_string("lc_memory", "");
-- Wait for pending operations
minetest.after(0.2, mesecon.receptor_off, pos, mesecon.rules.flat)
end
local function overheat(pos, meta)
if mesecon.do_overheat(pos) then -- If too hot
burn_controller(pos)
return true
end
end
------------------------
-- Ignored off events --
------------------------
local function ignore_event(event, meta)
if event.type ~= "off" then return false end
local ignore_offevents = minetest.deserialize(meta:get_string("ignore_offevents")) or {}
if ignore_offevents[event.pin.name] then
ignore_offevents[event.pin.name] = nil
meta:set_string("ignore_offevents", minetest.serialize(ignore_offevents))
return true
end
end
-------------------------
-- Parsing and running --
-------------------------
local function safe_print(param)
print(dump(param))
end
local function safe_date()
return(os.date("*t",os.time()))
end
-- string.rep(str, n) with a high value for n can be used to DoS
-- the server. Therefore, limit max. length of generated string.
local function safe_string_rep(str, n)
if #str * n > mesecon.setting("luacontroller_string_rep_max", 64000) then
debug.sethook() -- Clear hook
error("string.rep: string length overflow", 2)
end
return string.rep(str, n)
end
-- string.find with a pattern can be used to DoS the server.
-- Therefore, limit string.find to patternless matching.
local function safe_string_find(...)
if (select(4, ...)) ~= true then
debug.sethook() -- Clear hook
error("string.find: 'plain' (fourth parameter) must always be true in a lua controlled tube")
end
return string.find(...)
end
local function remove_functions(x)
local tp = type(x)
if tp == "function" then
return nil
end
-- Make sure to not serialize the same table multiple times, otherwise
-- writing mem.test = mem in the lua controlled tube will lead to infinite recursion
local seen = {}
local function rfuncs(x)
if seen[x] then return end
seen[x] = true
if type(x) ~= "table" then return end
for key, value in pairs(x) do
if type(key) == "function" or type(value) == "function" then
x[key] = nil
else
if type(key) == "table" then
rfuncs(key)
end
if type(value) == "table" then
rfuncs(value)
end
end
end
end
rfuncs(x)
return x
end
local function get_interrupt(pos)
-- iid = interrupt id
local function interrupt(time, iid)
if type(time) ~= "number" then return end
local luac_id = minetest.get_meta(pos):get_int("luac_id")
mesecon.queue:add_action(pos, "pipeworks:lc_tube_interrupt", {luac_id, iid}, time, iid, 1)
end
return interrupt
end
local function get_digiline_send(pos)
if not digiline then return end
return function(channel, msg)
-- Make sure channel is string, number or boolean
if (type(channel) ~= "string" and type(channel) ~= "number" and type(channel) ~= "boolean") then
return false
end
-- It is technically possible to send functions over the wire since
-- the high performance impact of stripping those from the data has
-- been decided to not be worth the added realism.
-- Make sure serialized version of the data is not insanely long to
-- prevent DoS-like attacks
local msg_ser = minetest.serialize(msg)
if #msg_ser > mesecon.setting("luacontroller_digiline_maxlen", 50000) then
return false
end
minetest.after(0, function()
digilines.receptor_send(pos, digiline.rules.default, channel, msg)
end)
return true
end
end
local safe_globals = {
"assert", "error", "ipairs", "next", "pairs", "select",
"tonumber", "tostring", "type", "unpack", "_VERSION"
}
local function create_environment(pos, mem, event)
-- Gather variables for the environment
local vports = minetest.registered_nodes[minetest.get_node(pos).name].virtual_portstates
local vports_copy = {}
for k, v in pairs(vports) do vports_copy[k] = v end
local rports = get_real_port_states(pos)
-- Create new library tables on each call to prevent one Luacontroller
-- from breaking a library and messing up other Luacontrollers.
local env = {
pin = merge_port_states(vports, rports),
port = vports_copy,
event = event,
mem = mem,
heat = mesecon.get_heat(pos),
heat_max = mesecon.setting("overheat_max", 20),
print = safe_print,
interrupt = get_interrupt(pos),
digiline_send = get_digiline_send(pos),
string = {
byte = string.byte,
char = string.char,
format = string.format,
len = string.len,
lower = string.lower,
upper = string.upper,
rep = safe_string_rep,
reverse = string.reverse,
sub = string.sub,
find = safe_string_find,
},
math = {
abs = math.abs,
acos = math.acos,
asin = math.asin,
atan = math.atan,
atan2 = math.atan2,
ceil = math.ceil,
cos = math.cos,
cosh = math.cosh,
deg = math.deg,
exp = math.exp,
floor = math.floor,
fmod = math.fmod,
frexp = math.frexp,
huge = math.huge,
ldexp = math.ldexp,
log = math.log,
log10 = math.log10,
max = math.max,
min = math.min,
modf = math.modf,
pi = math.pi,
pow = math.pow,
rad = math.rad,
random = math.random,
sin = math.sin,
sinh = math.sinh,
sqrt = math.sqrt,
tan = math.tan,
tanh = math.tanh,
},
table = {
concat = table.concat,
insert = table.insert,
maxn = table.maxn,
remove = table.remove,
sort = table.sort,
},
os = {
clock = os.clock,
difftime = os.difftime,
time = os.time,
datetable = safe_date,
},
}
env._G = env
for _, name in pairs(safe_globals) do
env[name] = _G[name]
end
return env
end
local function timeout()
debug.sethook() -- Clear hook
error("Code timed out!", 2)
end
local function create_sandbox(code, env)
if code:byte(1) == 27 then
return nil, "Binary code prohibited."
end
local f, msg = loadstring(code)
if not f then return nil, msg end
setfenv(f, env)
-- Turn off JIT optimization for user code so that count
-- events are generated when adding debug hooks
if rawget(_G, "jit") then
jit.off(f, true)
end
return function(...)
-- Use instruction counter to stop execution
-- after luacontroller_maxevents
local maxevents = mesecon.setting("luacontroller_maxevents", 10000)
debug.sethook(timeout, "", maxevents)
local ok, ret = pcall(f, ...)
debug.sethook() -- Clear hook
if not ok then error(ret, 0) end
return ret
end
end
local function load_memory(meta)
return minetest.deserialize(meta:get_string("lc_memory")) or {}
end
local function save_memory(pos, meta, mem)
local memstring = minetest.serialize(remove_functions(mem))
local memsize_max = mesecon.setting("luacontroller_memsize", 100000)
if (#memstring <= memsize_max) then
meta:set_string("lc_memory", memstring)
else
print("Error: lua_tube memory overflow. "..memsize_max.." bytes available, "
..#memstring.." required. Controller overheats.")
burn_controller(pos)
end
end
local function run(pos, event)
local meta = minetest.get_meta(pos)
if overheat(pos) then return end
if ignore_event(event, meta) then return end
-- Load code & mem from meta
local mem = load_memory(meta)
local code = meta:get_string("code")
-- Create environment
local env = create_environment(pos, mem, event)
-- Create the sandbox and execute code
local f, msg = create_sandbox(code, env)
if not f then return false, msg end
local succ, msg = pcall(f)
if not succ then return false, msg end
if type(env.port) ~= "table" then
return false, "Ports set are invalid."
end
-- Actually set the ports
set_port_states(pos, env.port)
-- Save memory. This may burn the luacontroller if a memory overflow occurs.
save_memory(pos, meta, env.mem)
return succ, msg
end
mesecon.queue:add_function("pipeworks:lc_tube_interrupt", function (pos, luac_id, iid)
-- There is no lua_tube anymore / it has been reprogrammed / replaced / burnt
if (minetest.get_meta(pos):get_int("luac_id") ~= luac_id) then return end
if (minetest.registered_nodes[minetest.get_node(pos).name].is_burnt) then return end
run(pos, {type = "interrupt", iid = iid})
end)
local function reset_meta(pos, code, errmsg)
local meta = minetest.get_meta(pos)
meta:set_string("code", code)
code = minetest.formspec_escape(code or "")
errmsg = minetest.formspec_escape(tostring(errmsg or ""))
meta:set_string("formspec", "size[12,10]"..
"background[-0.2,-0.25;12.4,10.75;jeija_luac_background.png]"..
"textarea[0.2,0.2;12.2,9.5;code;;"..code.."]"..
"image_button[4.75,8.75;2.5,1;jeija_luac_runbutton.png;program;]"..
"image_button_exit[11.72,-0.25;0.425,0.4;jeija_close_window.png;exit;]"..
"label[0.1,9;"..errmsg.."]")
meta:set_int("luac_id", math.random(1, 65535))
end
local function reset(pos)
set_port_states(pos, {red = false, blue = false, yellow = false,
green = false, black = false, white = false})
end
-----------------------
-- Node Registration --
-----------------------
local output_rules = {}
local input_rules = {}
local node_box = {
type = "fixed",
fixed = {
pipeworks.tube_leftstub[1], -- tube segment against -X face
pipeworks.tube_rightstub[1], -- tube segment against +X face
pipeworks.tube_bottomstub[1], -- tube segment against -Y face
pipeworks.tube_topstub[1], -- tube segment against +Y face
pipeworks.tube_frontstub[1], -- tube segment against -Z face
pipeworks.tube_backstub[1], -- tube segment against +Z face
}
}
local selection_box = {
type = "fixed",
fixed = pipeworks.tube_selectboxes,
}
local digiline = {
receptor = {},
effector = {
action = function(pos, node, channel, msg)
run(pos, {type = "digiline", channel = channel, msg = msg})
end
}
}
local function on_receive_fields(pos, form_name, fields, sender)
if not fields.program then
return
end
local name = sender:get_player_name()
if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
minetest.record_protection_violation(pos, name)
return
end
reset(pos)
reset_meta(pos, fields.code)
local succ, err = run(pos, {type="program"})
if not succ then
print(err)
reset_meta(pos, fields.code, err)
end
end
local function go_back(velocity)
local adjlist={{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}}
local speed = math.abs(velocity.x + velocity.y + velocity.z)
if speed == 0 then
speed = 1
end
local vel = {x = velocity.x/speed, y = velocity.y/speed, z = velocity.z/speed,speed=speed}
if speed >= 4.1 then
speed = 4
elseif speed >= 1.1 then
speed = speed - 0.1
else
speed = 1
end
vel.speed = speed
return pipeworks.notvel(adjlist, vel)
end
local tiles_base = {
"pipeworks_mese_tube_plain_4.png", "pipeworks_mese_tube_plain_3.png",
"pipeworks_mese_tube_plain_2.png", "pipeworks_mese_tube_plain_1.png",
"pipeworks_mese_tube_plain_6.png", "pipeworks_mese_tube_plain_5.png"}
for red = 0, 1 do -- 0 = off 1 = on
for blue = 0, 1 do
for yellow = 0, 1 do
for green = 0, 1 do
for black = 0, 1 do
for white = 0, 1 do
local cid = tostring(white)..tostring(black)..tostring(green)..
tostring(yellow)..tostring(blue)..tostring(red)
local node_name = BASENAME..cid
local tiles = table.copy(tiles_base)
if red == 1 then
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
else
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
end
if blue == 1 then
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
else
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
end
if yellow == 1 then
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
else
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
tiles[5] = tiles[5].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
tiles[6] = tiles[6].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
end
if green == 1 then
tiles[3] = tiles[3].."^pipeworks_lua_tube_port_on.png"
tiles[4] = tiles[4].."^pipeworks_lua_tube_port_on.png"
tiles[5] = tiles[5].."^pipeworks_lua_tube_port_on.png"
tiles[6] = tiles[6].."^pipeworks_lua_tube_port_on.png"
else
tiles[3] = tiles[3].."^pipeworks_lua_tube_port_off.png"
tiles[4] = tiles[4].."^pipeworks_lua_tube_port_off.png"
tiles[5] = tiles[5].."^pipeworks_lua_tube_port_off.png"
tiles[6] = tiles[6].."^pipeworks_lua_tube_port_off.png"
end
if black == 1 then
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
tiles[2] = tiles[2].."^pipeworks_lua_tube_port_on.png"
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
else
tiles[1] = tiles[1].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
tiles[2] = tiles[2].."^pipeworks_lua_tube_port_off.png"
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
end
if white == 1 then
tiles[1] = tiles[1].."^pipeworks_lua_tube_port_on.png"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_on.png^[transformR180)"
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_on.png^[transformR270)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_on.png^[transformR90)"
else
tiles[1] = tiles[1].."^pipeworks_lua_tube_port_off.png"
tiles[2] = tiles[2].."^(pipeworks_lua_tube_port_off.png^[transformR180)"
tiles[3] = tiles[3].."^(pipeworks_lua_tube_port_off.png^[transformR270)"
tiles[4] = tiles[4].."^(pipeworks_lua_tube_port_off.png^[transformR90)"
end
local groups = {snappy = 3, tube = 1, tubedevice = 1, overheat = 1}
if red + blue + yellow + green + black + white ~= 0 then
groups.not_in_creative_inventory = 1
end
output_rules[cid] = {}
input_rules[cid] = {}
if red == 1 then table.insert(output_rules[cid], rules.red) end
if blue == 1 then table.insert(output_rules[cid], rules.blue) end
if yellow == 1 then table.insert(output_rules[cid], rules.yellow) end
if green == 1 then table.insert(output_rules[cid], rules.green) end
if black == 1 then table.insert(output_rules[cid], rules.black) end
if white == 1 then table.insert(output_rules[cid], rules.white) end
if red == 0 then table.insert( input_rules[cid], rules.red) end
if blue == 0 then table.insert( input_rules[cid], rules.blue) end
if yellow == 0 then table.insert( input_rules[cid], rules.yellow) end
if green == 0 then table.insert( input_rules[cid], rules.green) end
if black == 0 then table.insert( input_rules[cid], rules.black) end
if white == 0 then table.insert( input_rules[cid], rules.white) end
local mesecons = {
effector = {
rules = input_rules[cid],
action_change = function (pos, _, rule_name, new_state)
update_real_port_states(pos, rule_name, new_state)
run(pos, {type=new_state, pin=rule_name})
end,
},
receptor = {
state = mesecon.state.on,
rules = output_rules[cid]
}
}
minetest.register_node(node_name, {
description = "Lua controlled Tube",
drawtype = "nodebox",
tiles = tiles,
paramtype = "light",
groups = groups,
drop = BASENAME.."000000",
sunlight_propagates = true,
selection_box = selection_box,
node_box = node_box,
on_construct = reset_meta,
on_receive_fields = on_receive_fields,
sounds = default.node_sound_wood_defaults(),
mesecons = mesecons,
digiline = digiline,
-- Virtual portstates are the ports that
-- the node shows as powered up (light up).
virtual_portstates = {
red = red == 1,
blue = blue == 1,
yellow = yellow == 1,
green = green == 1,
black = black == 1,
white = white == 1,
},
after_dig_node = function(pos, node)
mesecon.do_cooldown(pos)
mesecon.receptor_off(pos, output_rules)
pipeworks.after_dig(pos, node)
end,
is_luacontroller = true,
tubelike = 1,
tube = {
connect_sides = {front = 1, back = 1, left = 1, right = 1, top = 1, bottom = 1},
priority = 50,
can_go = function(pos, node, velocity, stack)
local succ, msg = run(pos, {
type = "item",
itemstring = stack:to_string(),
item = stack:to_table(),
velocity = velocity,
})
if not succ or type(msg) ~= "string" then
return go_back(velocity)
end
local r = rules[msg]
return r and {r} or go_back(velocity)
end,
},
after_place_node = pipeworks.after_place,
on_blast = function(pos, intensity)
if not intensity or intensity > 1 + 3^0.5 then
minetest.remove_node(pos)
return {string.format("%s_%s", name, dropname)}
end
minetest.swap_node(pos, {name = "pipeworks:broken_tube_1"})
pipeworks.scan_for_tube_objects(pos)
end,
on_blast = function(pos, intensity)
if not intensity or intensity > 1 + 3^0.5 then
minetest.remove_node(pos)
return {string.format("%s_%s", name, dropname)}
end
minetest.swap_node(pos, {name = "pipeworks:broken_tube_1"})
pipeworks.scan_for_tube_objects(pos)
end,
})
end
end
end
end
end
end
------------------------------------
-- Overheated Lua controlled Tube --
------------------------------------
local tiles_burnt = table.copy(tiles_base)
tiles_burnt[1] = tiles_burnt[1].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
tiles_burnt[2] = tiles_burnt[2].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
tiles_burnt[5] = tiles_burnt[5].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[6] = tiles_burnt[6].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
tiles_burnt[1] = tiles_burnt[1].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[2] = tiles_burnt[2].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[5] = tiles_burnt[5].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
tiles_burnt[6] = tiles_burnt[6].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[3] = tiles_burnt[3].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[4] = tiles_burnt[4].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[5] = tiles_burnt[5].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[6] = tiles_burnt[6].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[3] = tiles_burnt[3].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[4] = tiles_burnt[4].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[5] = tiles_burnt[5].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[6] = tiles_burnt[6].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[1] = tiles_burnt[1].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[2] = tiles_burnt[2].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[3] = tiles_burnt[3].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
tiles_burnt[4] = tiles_burnt[4].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[1] = tiles_burnt[1].."^pipeworks_lua_tube_port_burnt.png"
tiles_burnt[2] = tiles_burnt[2].."^(pipeworks_lua_tube_port_burnt.png^[transformR180)"
tiles_burnt[3] = tiles_burnt[3].."^(pipeworks_lua_tube_port_burnt.png^[transformR270)"
tiles_burnt[4] = tiles_burnt[4].."^(pipeworks_lua_tube_port_burnt.png^[transformR90)"
minetest.register_node(BASENAME .. "_burnt", {
drawtype = "nodebox",
tiles = tiles_burnt,
is_burnt = true,
paramtype = "light",
groups = {snappy = 3, tube = 1, tubedevice = 1, not_in_creative_inventory=1},
drop = BASENAME.."000000",
sunlight_propagates = true,
selection_box = selection_box,
node_box = node_box,
on_construct = reset_meta,
on_receive_fields = on_receive_fields,
sounds = default.node_sound_wood_defaults(),
virtual_portstates = {red = false, blue = false, yellow = false,
green = false, black = false, white = false},
mesecons = {
effector = {
rules = mesecon.rules.alldirs,
action_change = function(pos, _, rule_name, new_state)
update_real_port_states(pos, rule_name, new_state)
end,
},
},
tubelike = 1,
tube = {
connect_sides = {front = 1, back = 1, left = 1, right = 1, top = 1, bottom = 1},
priority = 50,
},
after_place_node = pipeworks.after_place,
after_dig_node = pipeworks.after_dig,
on_blast = function(pos, intensity)
if not intensity or intensity > 1 + 3^0.5 then
minetest.remove_node(pos)
return {string.format("%s_%s", name, dropname)}
end
minetest.swap_node(pos, {name = "pipeworks:broken_tube_1"})
pipeworks.scan_for_tube_objects(pos)
end,
})
------------------------
-- Craft Registration --
------------------------
minetest.register_craft({
type = "shapeless",
output = BASENAME.."000000",
recipe = {"pipeworks:mese_tube_000000", "mesecons_luacontroller:luacontroller0000"},
})
|