CODEWITHSUNDEEP
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Aaron H.
Aaron H.

Reputation: 1

netlogo 3D similar keyword to random-float in 2D?

I'm currently working on adapting "The Game of Life" code in 3D for a final in my CS class for high school, and I'm looking for a keyword similar to "random-float" that will have the same effect in netlogo. For reference, here is the link to the netlogo manual for the "random-float" keyword: http://ccl.northwestern.edu/netlogo/docs/dict/random-float.html

if anyone could help me out, it would be very much appreciated.

Upvotes: 0

Views: 49

Answers (1)

Luke C
Luke C

Reputation: 10301

I think you're okay to convert this more or less directly to 3D without using a different primitive- random-float or random should still do the trick. Essentially, in the 2D version the density is determined by getting each cell to randomly draw a number between 0 and 100, and compare that to the value in the initial-density slider. If the number drawn is less than the initial-density, the cell is "born." So, you can basically do the same thing in 3D- with this simplified setup:

to setup
  ca
  ask patches [ 
    ; if a random number between 0 and 100 is less than
    ; 5, become a "live" cell. Otherwise, become a dead cell.
    ifelse random-float 100 < 5 
    [ cell-birth ]
    [ cell-death ]   
  ]
  reset-ticks
end

to cell-birth
  set pcolor green
end

to cell-death
  set pcolor black
end

That gives something like:

enter image description here

So, to get the density to vary you can just modify the 5 (or add a slider as was done in the original 2D life. If I instead do 50:

to setup
  ca
  ask patches [ 
    ifelse random-float 100 < 50 
    [ cell-birth ]
    [ cell-death ]   
  ]
  reset-ticks
end

I get a much denser 3D world:

enter image description here

I hope that helps!

Upvotes: 2

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