nnca

[nnca]

Hello.

http://web.zone.ee/sus/nnca.html

Fundamentally it is a single never changing rule that allows for various local rules to exist.

Field value ranges can be randomized. Initial field values can be reassigned randomly based on field value ranges.

[Tropylium]

Seems interesting. Tell us more? I see no documentation on the site.

[nnca]

Algorithm:

Code: Select all

patches-own [x new-x y new-y z new-z]
to a1
  set new-x cos (sum ([x] of neighbors))
  set pcolor new-x * color-multiplier
  set new-x new-x * y
  let t min-one-of neighbors [x]
  set new-z [y] of t
  set new-y [z] of t
end
to a2
  set x new-x    set z new-z    set y new-y
end

All patches do a1. Then all patches will do a2.

patches: squares, cells, blocks
neighbors: 8 closest other patches of a patch. These will be in random order where order matters.
[x] of neighbors: results in a list with x values from neighbors
min-one-of neighbors [x]: Reports a random neighbor from neighbors that reports the lowest value for x. If there is a tie, one random neighbor from neighbors in tie is reported.
pcolor: patch color

Math:
observer> show .2 + .1
observer: 0.30000000000000004

observer> show sum [0.7520139527479848 0.757604503520714 0.8734987163172966]
observer: 2.383117172585995
observer> show sum [0.7520139527479848 0.8734987163172966 0.757604503520714]
observer: 2.3831171725859956

[nnca]

Time for an update.

The algorithm has been modified and now values that were fixed before can change.

Emphasis on this!:
It is important to pick appropriate color-level and redraw-offset. Sliders can be clicked on to move value towards the mouse by minimum step tied to that slider.

There is another rule i would like to bring attention to. It uses 4 and 8 closest neighbors. Out of this algorithm hexagonal tiling can emerge. More surprisingly "life" that uses this emergent hexagonal tiling instead 4 or 8 neighbors can emerge.
http://web.zone.ee/sus/nnca-hex-emergence.html
Press the import-world "hexlife.csv" button to import a world demonstrating this.