Add or remove one non-totalistic birth/survival condition and remove one cell to turn this pattern into a xq4.
Please don't use Catagolue to find the actual ship.
Code: Select all
x = 6, y = 4, rule = B2c3-ey4q/S23-a
b2o$obo2bo$3b3o$5bo!
x = 6, y = 4, rule = B2c3-ey4q/S23-a
b2o$obo2bo$3b3o$5bo!
x = 164, y = 147, rule = DeadlyEnemies
.2B2.2B$.2B2.2B4$5.2B3.2B3.2B2.2B$2B3.2B3.2B3.2B2.2B$2B$5.2B$5.2B$2B
17.2B3.2B$2B12.2B3.2B3.2B$14.2B$19.2B$19.2B48$84.A$82.2A$81.A.A$81.2A
7$73.A$71.2A$70.A.A18.2A$70.2A19.2A$98.2A$91.2A4.A2.A$91.2A4.A2.A$98.
2A3$94.A$94.2A$86.2A6.2A$86.2A7.A$68.A$66.2A$65.A.A31.2A$65.2A32.2A$
107.A11.A11.A11.A11.A7.A$90.2A3.2A$90.2A3.2A66.A2$87.2A74.A$87.2A$94.
2A67.A$87.2A4.A2.A$87.2A4.A2.A66.A$94.2A$163.A2$90.A16.A55.A$90.2A$
82.2A6.2A71.A$82.2A7.A$163.A2$95.2A66.A$95.2A$163.A$86.2A3.2A$86.2A3.
2A70.A2$107.A55.A2$163.A2$163.A2$163.A2$163.A2$163.A2$107.A55.A2$163.
A2$163.A2$163.A2$163.A2$163.A2$107.A55.A2$163.A2$163.A4$107.A.A.A.A.A
.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A.A3.A!
x = 164, y = 147, rule = DeadlyEnemies
.2B2.2B$.2B2.2B4$5.2B3.2B3.2B2.2B$2B3.2B3.2B3.2B2.2B$2B$5.2B$5.2B$2B
17.2B3.2B$2B12.2B3.2B3.2B$14.2B$19.2B$19.2B48$84.A$82.2A$81.A.A$81.2A
7$73.A$71.2A$70.A.A18.2A$70.2A19.2A$98.2A$91.2A4.A2.A$91.2A4.A2.A$98.
2A3$94.A$94.2A$86.2A6.2A$86.2A7.A$68.A$66.2A$65.A.A31.2A$65.2A32.2A$
107.A11.A11.A11.A11.A7.A$90.2A3.2A$90.2A3.2A41.2B23.A$137.2B$87.2A49.
2B23.A$87.2A23.B26.B$94.2A15.3B49.A$87.2A4.A2.A13.2B.B$87.2A4.A2.A66.
A$94.2A$163.A2$90.A16.A55.A$90.2A$82.2A6.2A71.A$82.2A7.A$163.A2$95.2A
66.A$95.2A15.B$111.2B50.A$86.2A3.2A17.2B$86.2A3.2A18.2B50.A2$107.A55.
A2$163.A2$163.A2$163.A2$163.A2$163.A2$107.A55.A2$163.A2$163.A2$163.A
2$163.A2$163.A2$107.A55.A2$163.A2$163.A4$107.A.A.A.A.A.A.A.A.A.A.A.A.
A.A.A.A.A.A.A.A.A.A.A.A.A.A.A3.A!
Rhombic wrote:Place THREE state-2 B-heptominoes in the bounded box to destroy the state 1 cells completely (no escaped gliders), reacting with all state 2 blocks and without any state 1 cells touching the blocks at the back at any point.Code: Select allx = 164, y = 147, rule = DeadlyEnemies...
x = 66, y = 65, rule = LifeHistory
.A$2A25$22.3B$22.4B$23.4B$24.4B$25.4B$26.4B14.A$27.4B11.3A$28.4B9.A$
29.4B8.2A$30.4B2.2B.4B$31.4B.5B$31.11B$28.14B.2B$27.19B$26.20B$27.20B
$27.21B$27.21B$27.22B$26.24B$26.24B14.2A$26.23B3.B11.A$25.32B4.BA.A$
24.19BD16B.B2A$25.37B$25.19B2A16B$25.18BA2BA15B$25.19B2A14B$24.28B5.B
.B$25.2B.A7B2.14B4.3B$26.B2A8B5.8B6.B.AB$26.12B4.6B9.2A$27.6B2.4B4.4B
$29.4B3.3B2$37.2A$38.A$37.A$37.2A!
#C [[ THUMBNAIL THUMBSIZE 2 ]]
dvgrn wrote:1) Can we get to universal construction with fewer T=0 cells and only one permanent-control cell?
x = 66, y = 65, rule = LifeHistory
.A$2A25$22.3B$22.4B$23.4B$24.4B$25.4B$26.4B14.A$27.4B11.3A$28.4B9.A$
29.4B8.2A$30.4B2.2B.4B$31.4B.5B$31.11B$28.14B.2B$27.19B$26.20B$27.20B
$27.21B$27.21B$27.22B$26.24B$26.24B14.2A$26.23B3.B11.A$25.32B4.BA.A$
24.19BD16B.B2A$25.37B$25.19BA17B$25.19B2A16B$25.20BA14B$24.28B5.B.B$
25.2B.A7B2.14B4.3B$26.B2A8B5.8B6.B.AB$26.12B4.6B9.2A$27.6B2.4B4.4B$
29.4B3.3B2$37.2A$38.A$37.A$37.2A!
dvgrn wrote:2) If we have permanent control over any cells we touch, how many do we need to achieve universal construction?
The upper bound for the answer to #2 seems to be 4 cells, because you can produce gliders on demand, if you have control over three cells in a banana-spark shape (among others). And then you can lie in wait for a glider out along the output channel, and convert a glider into an elbow -- and then you never need to use that fourth cell again.
The lower bound is pretty definitely 3 cells, for obvious reasons. I strongly suspect that universality can be achieved with only three controllable cells, but I'm not sure I want to try to prove it.
x = 23, y = 62, rule = B3/S23
b2o18bo$o20bo19$bo18b2o$2o18b2o18$21bo$3o17bobo$2o18bobo18$bo$3o$2bo!
dvgrn wrote:2b) Are there arrangements of three cells where you only need to be able to turn the cells ON or leave them alone to make a stream of single-channel gliders? The banana-spark glider generation method I found needed four ticks, and I had to turn two different cells OFF in different generations.
x = 27, y = 182, rule = B3/S23
3b2o18bo$2bo20bo19$3bo18b2o$2b2o18b2o18$23bo$2b3o17bobo$2b2o18bobo18$
3bo18b3o$2b3o17bobo$2bobo17bobo17$23bo$2b3o17bobo$2bobo16b2ob2o$2bobo
17$3bo19bo$2bobo16bo3bo$b5o15b2ob2o$22b3o17$3bo$bo3bo15bo3bo$b5o15bo3b
o$2b3o16bo3bo$23bo17$bo3bo18b2o$bo2b2o14b3ob3o$bo3bo16bo2bo$3bo17$4b2o
15b2o3bo$7o14b2o3bo$2bo2bo16bo2b2o18$b2o3bo$b2obobo$2bo2b2o!
x = 27, y = 163, rule = B3/S23
3b2o18bo$2bo20bo19$3b2o17b3o$2b2o18b3o18$23bo$2b3o17bobo$2b3o17bobo$
23bo17$3bo18b3o$2b3o17bobo$2bobo17bobo$3bo19bo16$23bo$2b3o17bobo$2bobo
16b2ob2o$2bobo17bobo$3bo19bo16$3bo19bo$2bobo16b2ob2o$b2ob2o15b2ob2o$2b
obo16b2ob2o$3bo19bo16$3bo18b3o$b2ob2o15bo3bo$b2ob2o14bo5bo$b2ob2o15bo
3bo$3bo18b3o36$2b3o$bo3bo$o3bobo$b2o2bo$2b3o!
biggiemac wrote:Is there a way using the banana spark configuration to also make some methuselah? Have it explode a bit, but when stable remain clear of the three control cells? Then use that debris as an elbow of sorts, with at least sufficient clearance to build a snark?
I expect with active control over three cells one can achieve a lot of different explosions so long as one can get started.
import golly as g
from time import sleep
g.setrule("LifeHistory")
g.addlayer()
delay=0.1
s=g.getstring("Enter base 27 string (@ABC...Z) encoding a banana-spark activation pattern, and comma-separated optional speed",
"MJBU@@@@@@@@@@@@@MJBU@@@@@@@@@@@@@MJRE@@@@@@@@@@@@@MJRE@@@@@@@@@@@@MJHA@@@@@@@@@@@MJHA@@@@@@@@@@@,.05")
pieces=s.upper().split(",")
if len(pieces)==2:
delay=float(pieces[1])
s=pieces[0]
t=0
for i in s:
base3val = ord(i)-64
# g.note(str(base3val))
if base3val<0 or base3val>26: base3val = 0
spark0 = base3val%3
spark1 = ((base3val-spark0)/3)%3
spark2 = base3val/9
if spark0!=0: g.setcell(0,0,spark0+2)
if spark1!=0: g.setcell(0,1,spark1+2)
if spark2!=0: g.setcell(1,2,spark2+2)
g.run(1)
t+=1
g.show(i + " at T= " + str(t))
g.update()
sleep(delay)
MJ..CC.....M....MD.......................................................................................A.......
MJ..CC.....M....MD........................................................................................A.......
FourscoreandsevenyearsagoourfathersbroughtforthonthiscontinentanewnationconceivedinlibertyanddedicatedtothepropositionthatallmenarecreatedequalNowweareengagedinagreatcivilwartestingwhetherthatnationoranynationsoconceivedandsodedicatedcanlongendureWearemetonagreatbattlefieldofthatwarWehavecometodedicateaportionofthatfieldasafinalrestingplaceforthosewhoheregavetheirlivesthatthatnationmightliveItisaltogetherfittingandproperthatweshoulddothisButinalargersensewecannotdedicatewecannotconsecratewecannothallowthisgroundThebravemenlivinganddeadwhostruggledherehaveconsecrateditfaraboveourpoorpowertoaddordetractTheworldwilllittlenotenorlongrememberwhatwesayherebutitcanneverforgetwhattheydidhereItisforusthelivingrathertobededicatedheretotheunfinishedworkwhichtheywhofoughtherehavethusfarsonoblyadvancedItisratherforustobeherededicatedtothegreattaskremainingbeforeusthatfromthesehonoreddeadwetakeincreaseddevotiontothatcauseforwhichtheygavethelastfullmeasureofdevotionthatweherehighlyresolvethatthesedeadshallnothavediedinvainthatthisnationunderGodshallhaveanewbirthoffreedomandthatgovernmentofthepeoplebythepeopleforthepeopleshallnotperishfromtheearth,0
MIAC.CCACA.....MIAC.CCACA.....
wildmyron wrote:BananaCodes - I love it.
For Turn On operations only (which seems an arbitrary limitation, but then that's what this exercise is all about) the allowed characters are:
@ACDIJLM
The glider producing sequence I posted happens to be in the fourth orientation, so here is its banana code - even though it's far from optimal due to avoidance of Turn Off operations (2 gliders shown at minimum repeat time).Code: Select allMIAC.CCACA.....MIAC.CCACA.....
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