Wolfram 1D Automata (buggy but awesome)

wolfram-1d-automata.judo

var cellSize = 4;
var cellsX = getDrawingWidth() / cellSize;
var cellsY = getDrawingHeight() / cellSize;
var gen = [];
var genNext = [];
var g = 0;
var frames = 100;

function main() {
  
  printLine(cellSize +' '+ cellsX +' '+ cellsY);
  
  setBackgroundColor(white);
  
  for (var i = 0; i < cellsX; i++) {
  	gen[i] = 0;  
  }
  gen[floor(cellsX / 2)] = 1;
 
  for (var j = 0; j < cellsY * frames; j++) {
    drawGen(j % cellsY);
    nextGen();
    delay(0.001);
  }
}

function drawGen(g) {
  for (var i = 1; i < cellsX - 1; i++) {
  	if (gen[i] == 0) {
      setColor(white);
    }
    else {
      setColor(black);
    }
    fillRectangle(i * cellSize, g * cellSize, cellSize, cellSize);
  }
}

function nextGen() {
  
  // rule 110 (decimal) = 01101110‬ (binary)
  // ‭ 0   1   1   0   1   1   1   0‬
  // 111 110 101 100 011 010 001 000

  // rule 90 (decimal) = 01011010‬ (binary)
  // ‭ 0   1   0   1   1   0   1   0‬
  // 111 110 101 100 011 010 001 000

  for (var i = 1; i < cellsX - 1; i++) {
    var hood = neighborhoodString(i);
    if (hood == '111' || hood == '101' ||
        hood == '010' || hood == '000') {
      genNext[i] = 0;
    }
    else {
      genNext[i] = 1;
    }
  }
  
  var c = 0;
  while (c++ < cellsX) {
    gen[c] = genNext[c];
  }
}
  
function neighborhoodString(x) {
/*  if (x == 0) {
    return gen[cellsX-1] + '' + gen[x] + '' + gen[x+1]; 
  }
  else if (x == cellsX - 1) {
    return gen[x-1] + '' + gen[x] + '' + gen[0]; 
  }
  else {*/
    return gen[x-1] + '' + gen[x] + '' + gen[x+1]; 
  //}
}

wolfram-1d-automata.png