jorpic · August 29, 2015 14:01
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <!-- По мотивам http://macroevolution.livejournal.com/168362.html -->
 <meta charset="utf-8">
 <style>
 </style>
 <body>
 <script src="http://d3js.org/d3.v3.min.js"></script>
 <script src="http://coffeescript.org/extras/coffee-script.js"></script>
 <script src="http://underscorejs.org/underscore-min.js"></script>
 <script type="text/coffeescript">
  colors = d3.scale.category10().range()
  xs = d3.scale.ordinal().domain([0..14]).rangePoints([0,innerWidth], 2).range()
  ys = d3.scale.ordinal().domain([0..9]).rangePoints([0,innerHeight], 1).range()
  rs = d3.scale.ordinal()
    .domain(d3.range(colors.length))
    .rangePoints([0,innerHeight/ys.length/2], 2)
    .range().reverse()

  nodes =
    xs.map (x) ->
      ys.map (y) ->
        rs.map (r) ->
          {x: x, y: y, r: r, c: _.sample colors}

  grid = d3
    .select('body').append('svg')
      .attr('width', innerWidth)
      .attr('height', innerHeight)

  row = grid
    .selectAll('.row')
      .data(nodes)
      .enter().append('svg:g')
        .attr('class', 'row')

  cell = row
    .selectAll('.cell')
      .data((d) -> d)
      .enter().append('svg:g')
        .attr('class', 'cell')

  cell
    .selectAll('circle')
      .data((d) -> d)
      .enter().append('circle')
        .attr('cx',    (d) -> d.x)
        .attr('cy',    (d) -> d.y)
        .attr('r',     (d) -> d.r)
        .style('fill', (d) -> d.c)
        .style('stroke', '#000')
        .style('stroke-width', '1px')

  nodeColors = (n) -> n.map (c) -> c.c

  neighbors = (x, y) ->
    res = []
    for i in [x-1..x+1] when i >=0 and i < xs.length
      for j in [y-1..y+1] when j >= 0 and j < ys.length
        if not (i == 0 and j == 0)
          res.push(nodes[i][j])
    res

  step = ->
    for x in d3.range xs.length
      for y in d3.range ys.length
        current = nodes[x][y]
        selected = _.sample (neighbors x, y), 3
        selectedColors = _.zip.apply _, selected.map(nodeColors)

        current.fit = 0
        for [c,cs] in _.zip nodeColors(current), selectedColors
          current.fit += _.filter(cs, (x) -> x == c).length

    for x in d3.range xs.length
      for y in d3.range ys.length
        current = nodes[x][y]
        selected = _.sample (neighbors x, y)
        if selected.fit >= current.fit
          i = _.sample(d3.range colors.length)
          current[i].c = selected[i].c
    cell
      .selectAll('circle')
        .data((d) -> d)
        .style('fill', (d) -> d.c)

  setInterval step, 100
 </script>
 </body>
	<!DOCTYPE html>
	<!-- По мотивам http://macroevolution.livejournal.com/168362.html -->
	<meta charset="utf-8">
	<style>
	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script src="http://coffeescript.org/extras/coffee-script.js"></script>
	<script src="http://underscorejs.org/underscore-min.js"></script>
	<script type="text/coffeescript">
	colors = d3.scale.category10().range()
	xs = d3.scale.ordinal().domain([0..14]).rangePoints([0,innerWidth], 2).range()
	ys = d3.scale.ordinal().domain([0..9]).rangePoints([0,innerHeight], 1).range()
	rs = d3.scale.ordinal()
	.domain(d3.range(colors.length))
	.rangePoints([0,innerHeight/ys.length/2], 2)
	.range().reverse()

	nodes =
	xs.map (x) ->
	ys.map (y) ->
	rs.map (r) ->
	{x: x, y: y, r: r, c: _.sample colors}

	grid = d3
	.select('body').append('svg')
	.attr('width', innerWidth)
	.attr('height', innerHeight)

	row = grid
	.selectAll('.row')
	.data(nodes)
	.enter().append('svg:g')
	.attr('class', 'row')

	cell = row
	.selectAll('.cell')
	.data((d) -> d)
	.enter().append('svg:g')
	.attr('class', 'cell')

	cell
	.selectAll('circle')
	.data((d) -> d)
	.enter().append('circle')
	.attr('cx', (d) -> d.x)
	.attr('cy', (d) -> d.y)
	.attr('r', (d) -> d.r)
	.style('fill', (d) -> d.c)
	.style('stroke', '#000')
	.style('stroke-width', '1px')

	nodeColors = (n) -> n.map (c) -> c.c

	neighbors = (x, y) ->
	res = []
	for i in [x-1..x+1] when i >=0 and i < xs.length
	for j in [y-1..y+1] when j >= 0 and j < ys.length
	if not (i == 0 and j == 0)
	res.push(nodes[i][j])
	res

	step = ->
	for x in d3.range xs.length
	for y in d3.range ys.length
	current = nodes[x][y]
	selected = _.sample (neighbors x, y), 3
	selectedColors = _.zip.apply _, selected.map(nodeColors)

	current.fit = 0
	for [c,cs] in _.zip nodeColors(current), selectedColors
	current.fit += _.filter(cs, (x) -> x == c).length

	for x in d3.range xs.length
	for y in d3.range ys.length
	current = nodes[x][y]
	selected = _.sample (neighbors x, y)
	if selected.fit >= current.fit
	i = _.sample(d3.range colors.length)
	current[i].c = selected[i].c
	cell
	.selectAll('circle')
	.data((d) -> d)
	.style('fill', (d) -> d.c)

	setInterval step, 100
	</script>
	</body>