Item: Game Of Life
Rating: 3.4
Author: 0damian

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HTML
CSS
JavaScript

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>Game Of Life</title>
  
  
  
      <link rel="stylesheet" href="css/style.css">

  
</head>

<body>

  <div id="app"></div>
  <script src='https://cdnjs.cloudflare.com/ajax/libs/react/15.3.1/react.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/react/15.3.1/react-dom.min.js'></script>

  

    <script  src="js/index.js"></script>




</body>

</html>


/*Downloaded from https://www.codeseek.co/0damian/game-of-life-pEqWRv */
body {
  background: #e5e5e5;
  padding: 1em;
  font-family: 'Open Sans', sans-serif;
}
body h1, body h2, body a, body p, body span {
  font-weight: 200;
  color: #555;
}
body h1, body h2, body a {
  display: table;
  margin: 0 auto 0.5em;
  padding-bottom: 0.1em;
  border-bottom: 1px solid #555;
}
body a {
  text-decoration: none;
  margin: 1em auto;
}
body a:hover {
  color: royalblue;
  border-bottom: 1px solid royalblue;
}
body div.explain {
  display: table;
  margin: 0 auto;
}
body div.explain * {
  display: inline-block;
}
body div.explain span {
  margin: 0 0.5em;
}
body div.explain p {
  border-left: 1px solid #555;
  padding-left: 0.5em;
}
body div.grid {
  text-align: center;
  margin-bottom: 1em;
  line-height: 0.8em;
}
body svg {
  width: 0.8em;
  height: auto;
}
body div.ctrl {
  display: table;
  margin: 0 auto;
}
body div.ctrl input[type='button'] {
  margin: 0 1em;
  background: #e5e5e5;
  border: 1px solid #555;
  color: #555;
  font-size: 1em;
}
body div.ctrl input[type='button']:hover {
  cursor: pointer;
  background: royalblue;
  border: 1px solid royalblue;
  color: #e5e5e5;
}
body div.ctrl input[type='button']:disabled, body div.ctrl input[type='button']:disabled:hover {
  background: #e5e5e5;
  border: 1px solid #b5b5b5;
  color: #b5b5b5;
}
body div.ctrl input[type='button'].active {
  border: 1px solid royalblue;
}


/*Downloaded from https://www.codeseek.co/0damian/game-of-life-pEqWRv */
var GameOfLife = React.createClass({
  displayName: 'GameOfLife',

  getInitialState: function getInitialState() {
    return {
      width: Number(this.props.width),
      interval: 250,
      count: 0,
      active: false
    };
  },
  componentWillMount: function componentWillMount() {
    this.setState({
      gridArray: this.makeGridArray(this.props.width)
    });
  },
  makeGridArray: function makeGridArray(width) {
    var maxX = width,
        maxY = width - 30,
        max = maxX * maxY,
        gridArray = [],
        i,
        j,
        cell,
        neighbours;
    for (i = 1; i <= maxY; i++) {
      for (j = 1; j <= maxX; j++) {
        var neighbours = this.getNeighbours([j, i]);
        cell = {
          x: j,
          y: i,
          status: 'dead',
          neighbours: neighbours
        };
        gridArray.push(cell);
      }
    }
    var seed = seedArray.sort();
    for (var k = 0; k < gridArray.length; k++) {
      if (seed.indexOf(k) > -1) {
        gridArray[k].status = 'newborn';
        seed.shift();
      }
    }
    return gridArray;
  },
  getNeighbours: function getNeighbours(arr) {
    var x = arr[0],
        y = arr[1],
        output;
    output = [{ x: x, y: y - 1 }, { x: x + 1, y: y - 1 }, { x: x + 1, y: y }, { x: x + 1, y: y + 1 }, { x: x, y: y + 1 }, { x: x - 1, y: y + 1 }, { x: x - 1, y: y }, { x: x - 1, y: y - 1 }];
    for (var i = 0; i < 8; i++) {
      if (!output[i].x) output[i].x = this.state.width;
      if (output[i].x > this.state.width) output[i].x = 1;
      if (!output[i].y) output[i].y = this.state.width - 30;
      if (output[i].y > this.state.width - 30) output[i].y = 1;
    }
    return output;
  },
  playPauseGame: function playPauseGame(e) {
    e.preventDefault();
    if (e.target.value == 'play') {
      this.setState({
        active: true
      });
      this.cycle = setInterval(this.cycleLife, this.state.interval);
    } else {
      clearInterval(this.cycle);
      this.setState({
        active: false
      });
    }
  },
  clearGame: function clearGame(e) {
    e.preventDefault();
    this.setState({
      gridArray: this.makeGridArray(this.state.width),
      count: 0
    });
  },
  resizeGrid: function resizeGrid(e) {
    e.preventDefault();
    var newWidth = Number(e.target.name);
    if (this.state.width != newWidth) {
      this.setState({
        width: Number(e.target.name),
        gridArray: this.makeGridArray(newWidth)
      });
    }
  },
  setInterval: function setInterval(e) {
    e.preventDefault();
    if (this.state.interval != Number(e.target.name)) {
      this.setState({
        interval: e.target.name
      });
    }
  },
  handleCellClick: function handleCellClick(data) {
    var newGrid = this.state.gridArray;
    for (var k = 0; k < newGrid.length; k++) {
      if (newGrid[k].x == data.x && newGrid[k].y == data.y) {
        newGrid[k].status == 'dead' ? newGrid[k].status = 'newborn' : newGrid[k].status = 'dead';
        this.setState({
          gridArray: newGrid
        });
        break;
      }
    }
  },
  cycleLife: function cycleLife() {
    var grid = this.state.gridArray,
        toBirth = [],
        toKill = [],
        toMature = [];
    for (var l = 0; l < grid.length; l++) {
      var livingNeighbours = 0;
      for (var m = 0; m < grid[l].neighbours.length; m++) {
        var arrIndex = (grid[l].neighbours[m].y - 1) * this.state.width + grid[l].neighbours[m].x - 1;
        if (grid[arrIndex].status != 'dead') livingNeighbours++;
      }
      if (grid[l].status == 'dead' && livingNeighbours == 3) toBirth.push(l);else if (grid[l].status != 'dead') {
        if (livingNeighbours < 2 || livingNeighbours > 3) toKill.push(l);else toMature.push(l);
      }
    }
    toBirth.map(function (cell) {
      grid[cell].status = 'newborn';
    });
    toKill.map(function (cell) {
      grid[cell].status = 'dead';
    });
    toMature.map(function (cell) {
      grid[cell].status = 'mature';
    });
    var count = this.state.count;
    this.setState({
      gridArray: grid,
      count: count + 1
    });
  },
  render: function render() {
    var cells = this.state.gridArray.map(function (cell) {
      return React.createElement(Cell, {
        x: cell.x,
        y: cell.y,
        status: cell.status,
        neighbours: cell.neighbours,
        gridWidth: this.state.width,
        onCellClick: this.handleCellClick
      });
    }, this);
    return React.createElement(
      'main',
      null,
      React.createElement(
        'h1',
        null,
        'Game of Life'
      ),
      React.createElement(
        'div',
        { className: 'ctrl ctrl-one' },
        React.createElement('input', {
          type: 'button',
          className: this.state.active ? 'active' : '',
          alt: 'play',
          value: this.state.active ? "pause" : "play",
          onClick: this.playPauseGame
        }),
        React.createElement('input', {
          type: 'button',
          value: 'clear',
          disabled: this.state.active,
          onClick: this.clearGame
        })
      ),
      React.createElement(
        'div',
        { className: 'explain' },
        React.createElement(
          'svg',
          { viewBox: '0 0 10 10' },
          React.createElement('circle', {
            cx: '5',
            cy: '5',
            r: '5',
            fill: '#b5b5b5'
          })
        ),
        React.createElement(
          'span',
          null,
          'dead'
        ),
        React.createElement(
          'svg',
          { viewBox: '0 0 10 10' },
          React.createElement('circle', {
            cx: '5',
            cy: '5',
            r: '5',
            fill: 'royalblue'
          })
        ),
        React.createElement(
          'span',
          null,
          'newborn'
        ),
        React.createElement(
          'svg',
          { viewBox: '0 0 10 10' },
          React.createElement('circle', {
            cx: '5',
            cy: '5',
            r: '5',
            fill: 'orangered'
          })
        ),
        React.createElement(
          'span',
          null,
          'mature'
        ),
        React.createElement(
          'p',
          {
            style: { textAlign: 'center' }
          },
          'life cycle: ' + this.state.count
        )
      ),
      React.createElement(
        'div',
        { className: 'grid' },
        cells
      ),
      React.createElement(
        'div',
        { className: 'ctrl ctrl-two' },
        React.createElement(
          'h2',
          null,
          'grid'
        ),
        React.createElement('input', {
          type: 'button',
          value: 'small',
          name: '50',
          onClick: this.resizeGrid
        }),
        React.createElement('input', {
          type: 'button',
          value: 'medium',
          name: '70',
          onClick: this.resizeGrid
        }),
        React.createElement('input', {
          type: 'button',
          value: 'large',
          name: '90',
          onClick: this.resizeGrid
        })
      ),
      React.createElement(
        'div',
        { className: 'ctrl ctrl-two' },
        React.createElement(
          'h2',
          null,
          'speed'
        ),
        React.createElement('input', {
          type: 'button',
          value: 'slow',
          name: '1000',
          disabled: this.state.active,
          onClick: this.setInterval
        }),
        React.createElement('input', {
          type: 'button',
          value: 'medium',
          name: '250',
          disabled: this.state.active,
          onClick: this.setInterval
        }),
        React.createElement('input', {
          type: 'button',
          value: 'fast',
          name: '100',
          disabled: this.state.active,
          onClick: this.setInterval
        })
      ),
      React.createElement(
        'a',
        {
          href: 'https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life',
          target: '_blank'
        },
        'what is this?'
      )
    );
  }
});

var Cell = React.createClass({
  displayName: 'Cell',

  handleCellClick: function handleCellClick(e) {
    e.preventDefault();
    this.props.onCellClick({
      x: this.props.x,
      y: this.props.y,
      neighbours: this.props.neighbours
    });
  },
  selectFill: function selectFill() {
    if (this.props.status == 'dead') return '#b5b5b5';else if (this.props.status == 'newborn') return 'royalblue';else return 'orangered';
  },
  render: function render() {
    if (this.props.x == this.props.gridWidth) {
      return React.createElement(
        'span',
        null,
        React.createElement(
          'svg',
          { viewBox: '0 0 10 10' },
          React.createElement('circle', {
            cx: '5',
            cy: '5',
            r: '5',
            fill: this.selectFill(),
            onClick: this.handleCellClick
          })
        ),
        React.createElement('br', null)
      );
    } else {
      return React.createElement(
        'svg',
        { viewBox: '0 0 10 10' },
        React.createElement('circle', {
          cx: '5',
          cy: '5',
          r: '5',
          fill: this.selectFill(),
          onClick: this.handleCellClick
        })
      );
    }
  }
});

var seedArray = [102, 103, 104, 353, 354, 355, 404, 405, 406, 161, 162, 163, 113, 62, 683, 684, 685, 686, 636, 586, 535, 532, 632, 141, 142, 191, 192, 243, 244, 293, 294, 956, 957, 808, 758, 757, 804, 854, 810, 861, 761, 762, 961, 962, 864, 914, 656, 657, 608, 558, 604, 554, 457, 456, 661, 662, 610, 560, 461, 462, 614, 564, 693, 694, 743, 794, 745];

ReactDOM.render(React.createElement(GameOfLife, { width: '50' }), document.getElementById('app'));

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