LifeViewer/Known bugs/Scripting

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Currently known issues with LifeViewer script commands.

  • STATE1FIT does not work as expected in [R]Super rules.
    • STATE1FIT may be deprecated in the future in favor of a new ALIVEFIT command in order to resolve this issue.[1]
[R]Standard [R]History
x = 3, y = 3, rule = B3/S23 o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOFIT STATE1FIT THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 3, y = 3, rule = B3/S23History o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOFIT STATE1FIT THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
[R]Super [R]Investigator
x = 3, y = 3, rule = B3/S23Super o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOFIT STATE1FIT THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 3, y = 3, rule = B3/S23Investigator o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOFIT STATE1FIT THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Setting up paste commands that cancel out to produce nothing will have differing results in the range-1 algorithm versus the general-range algorithm.
    • At T=0, in the range-1 algorithm, a dead cell is visible in the thumbnail, but is not present in the popup viewer; in the general-range algorithm, it is present in both cases. In both cases, dead cells will manifest from T=1 onwards.
Standard General
x = 1, y = 1, rule = B3/S23 ! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ PASTEMODE XOR PASTET EVERY 1 PASTEDELTA 1 0 PASTE o! 0 0 PASTE o! 0 0 THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 1, y = 1, rule = R1,C2,S2-3,B3 ! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ PASTEMODE XOR PASTET EVERY 1 PASTEDELTA 1 0 PASTE o! 0 0 PASTE o! 0 0 THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Attempting to customize the colour of GRIDMAJOR in a hexagonal or triangular rule, or a square grid rule with a GRIDMAJOR interval of 0, will not display an error.
    • This is unlike when trying to color cell states which do not apply to the active rule, as well as bounded grid edge cells in rules which do not specify a bounded grid; both cases produce an error to indicate that the customization is irrelevant.
    • In the former two cases a custom theme is also created.
Hexagonal Triangular GRIDMAJOR 0
x = 2, y = 2, rule = B/S0123HT o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ COLOR GRIDMAJOR Blue THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 3, y = 3, rule = B/S0123LV $3o$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ COLOR GRIDMAJOR Blue THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 2, y = 2, rule = B/S01234V 2o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ COLOR GRIDMAJOR Blue GRIDMAJOR 0 THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Changing the color of "dead" in [R]Super or [R]Investigator will not change the color of any cell states. However, it also will not display an error indicating that "dead" is not a valid element to customize for these specific rules.
    • In [R]Standard and [R]History, "dead" will affect the colors of freshly-dead cells.
    • Attempting to customize the capitalized "DEAD" in [R]Super or [R]Investigator will display an error.
[R]Standard [R]History
x = 3, y = 2, rule = B2a3r/S obo$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 8 COLOR dead Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 3, y = 2, rule = B2a3r/SHistory obo$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 8 COLOR dead Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
[R]Super [R]Investigator
x = 3, y = 2, rule = B2a3r/SSuper obo$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 8 COLOR dead Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 3, y = 2, rule = B2a3r/SInvestigator obo$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 8 COLOR dead Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Trying to change the colour of DEAD in a Generations rule with 255 or 256 states, or DEADRAMP in a rule with 256 states, will change nothing, however, again, no error is produced indicating that these are invalid to customize.
    • A custom theme is also created when it should not be.
G255 G256
x = 2, y = 2, rule = /2/255 AB$AB! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 256 COLOR DEAD Blue THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 2, y = 2, rule = /2/256 AB$AB! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STARTFROM 256 COLOR DEAD Blue COLOR DEADRAMP Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Trying to change the colour of DEAD in a rule with HISTORYSTATES 0 or 1, DEADRAMP in a rule with HISTORYSTATES 0, or ALIVERAMP in a rule with AGESTATES 0, will change nothing, however, yet again, no error is produced indicating that these are invalid to customize.
    • Custom themes are also created as a result.
    • In Help > Themes, the values for DEAD, DEADRAMP and ALIVERAMP are all also still present, rather than being eliminated due to their absence in such cases.
    • Bizarrely, for HISTORYSTATES 1, despite DEADRAMP being used, the colour for DEAD is instead shown in Help > Info > Cells (matching any custom specifications), with DEADRAMP, the colour which is actually in use, being absent.
HISTORYSTATES 1 HISTORYSTATES 0 AGESTATES 0
x = 2, y = 4, rule = B2/S bo$o$o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Blues STARTFROM 5 HISTORYSTATES 1 COLOR DEAD Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 2, y = 4, rule = B2/S bo$o$o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Blues STARTFROM 5 HISTORYSTATES 0 COLOR DEAD Green COLOR DEADRAMP Red THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 1, y = 3, rule = B3/S23 o$o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Blues STARTFROM 5 AGESTATES 0 COLOR ALIVERAMP Green THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • Different errors will be produced when trying to customize the colors of history, mark1, markoff, mark2 and kill in a rulespace which does not support these states if they are specified as lowercase compared to uppercase.
Lowercase Uppercase
x = 4, y = 4, rule = B3/S23 2bo$obo$bobo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ COLOR history Pink COLOR mark1 Pink COLOR markoff Pink COLOR mark2 Pink COLOR kill Pink THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 4, y = 4, rule = B3/S23 2bo$obo$bobo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ COLOR HISTORY Pink COLOR MARK1 Pink COLOR MARKOFF Pink COLOR MARK2 Pink COLOR KILL Pink THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • When changing the active theme, TRACKLOOP will not adjust, resulting in visual major grid line jumping.
    • For the following, change the theme to a theme with major grid lines such as the MCell theme.
x = 3, y = 3, rule = B3/S23 bo$o$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] [[ AUTOSTART THEME Margolus GRID TRACKLOOP 4 -1/4 1/4 GPS 5 ]]
(click above to open LifeViewer)


  • Pasting something in [R]History via PASTEMODE COPY will cause any state-0 cells to become freshly-created state 2 cells.
    • This is in contract to pasting state-2 cells themselves: these are set as fully aged.
    • Expected behaviour would be for state 0 cells to be pasted as state 0 cells.
Input pattern When pasted
x = 7, y = 7, rule = LifeHistory 7B$7B$2B3.2B$2B3.2B$2B3.2B$7B$7B! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 1, y = 1, rule = LifeHistory ! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ PASTEMODE COPY PASTET 0 PASTE 7B$7B$2B3.2B$2B3.2B$2B3.2B$7B$7B! 0 0 THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • If a pattern that uses HISTORYFIT has its evolution modified by PASTE or Kill Gliders in a certain way, AUTOFIT will ignore all preceding history cells when calculating the box to fit the pattern to.
PASTE Kill Gliders
x = 60, y = 3, rule = B3/S23 obo54bobo$b2o54b2o$bo56bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART AUTOFIT HISTORYFIT PASTEMODE XOR PASTET 200 PASTE o! 37 27 THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 10, y = 75, rule = B3/S23 obo$3bo$3bo5bo$o2bo3bobo$b3o4b2o67$4b2o$4bo$5b3o$7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART AUTOFIT HISTORYFIT KILLGLIDERS THEME Book THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • User interfaces interact incorrectly with specific values for popup width and height as defined in script commands.
    • On some touchscreen devices, the popup created by the right thumbnail is twice the size it should be.[2]
    • If a viewer window has a height of below 480, the Settings button will be disabled as the contents of that menu would not display in a usable way. Maximizing the popup on the right will enable that button, allowing it to be entered, and un-maximizing the popup will result in the settings menu closing. However, it may remain open for one frame before closing, showing buttons in an intersecting state.
normal popup size atypical size
x = 35, y = 9, rule = B3/S23 b2o20bo3bo6bo$o2bo19b2ob2o6bo$o2bob3o3b2o2b3o5bobobo2b2o2bo$o2bobo2bo bo2bobo2bo4bo3bobo2bobo$o2bobo2bob4obo2bo4bo3bob4o$b2o2b3o2bo4bo2bo4b o3bobo4bo$5bo5b3o16b3o$5bo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 35, y = 9, rule = B3/S23 b2o20bo3bo6bo$o2bo19b2ob2o6bo$o2bob3o3b2o2b3o5bobobo2b2o2bo$o2bobo2bo bo2bobo2bo4bo3bobo2bobo$o2bobo2bob4obo2bo4bo3bob4o$b2o2b3o2bo4bo2bo4b o3bobo4bo$5bo5b3o16b3o$5bo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ POPUPWIDTH 480 POPUPHEIGHT 300 THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)


  • If some commands are provided with a value exceeding 2147483647, they will overflow, rather than rejecting the value as it is provided. This does not apply to all commands.
    • These values are presumably those which are handled as Uint32Arrays.[3]
rejects correctly incorrectly overflows
x = 7, y = 3, rule = B3/S23 bo3bo$2o3b2o$bo3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ X 10000000000 Y 10000000000 ZOOM 10000000000 STARTFROM 10000000000 GPS 10000000000 TILT 10000000000 DEPTH 10000000000 POITRANS 10000000000 GRAPHOPACITY 10000000000 THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)
x = 7, y = 3, rule = B3/S23 bo3bo$2o3b2o$bo3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ STEP 10000000000 ANGLE 10000000000 LAYERS 10000000000 GRIDMAJOR 10000000000 HISTORYSTATES 10000000000 AGESTATES 10000000000 DELETERANGE 10000000000 THEME 10000000000 MAXGRIDSIZE 10000000000 POPUPWIDTH 10000000000 POPUPHEIGHT 10000000000 THUMBNAIL THUMBSIZE 4 WIDTH 600 HEIGHT 600 ]]
(click above to open LifeViewer)

References

  1. ↑ https://conwaylife.com/forums/viewtopic.php?p=158545#p158569
  2. ↑ https://conwaylife.com/forums/viewtopic.php?p=219857#p219857
  3. ↑ https://conwaylife.com/forums/viewtopic.php?f=3&t=1622&p=135110#p135110
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