script to play Kevin Lyda's 2048 game version

gistfile1.txt

GameManager.prototype.actuateOld = GameManager.prototype.actuate;
GameManager.prototype.actuate = function() {
  this.actuateOld();
  var lowest= 0;
  this.grid.eachCell(function(x, y, tile) { 
    if (tile && tile.value) lowest= lowest? Math.min(lowest, tile.value) : tile.value;
  });
  var dirBest = 0, dirGood=0;
  for (var i = 0; i < this.grid.size; ++i) {
    var c = [], dirHoriz=Math.random()>=0.5?1:3;
    this.grid.cells.forEach(cv => {
      if (cv[i]) {
        c.push(cv[i].value) 
      }; 
    }); 
    c.forEach((cv, idx) => {
      if (c[idx + 1] && c[idx + 1] == cv) {
        dirGood = dirHoriz;
        if (cv==lowest) dirBest=dirHoriz;
      };
    });
  }
  this.grid.cells.forEach(c => {
    var cf = c.filter(d => {
      return d
    });
    cf.forEach((cv, idx) => {
      if (cf[idx + 1] && cf[idx + 1].value == cv.value) {
        dirGood = 2;
        if (cv.value==lowest) dirBest=2;
      };
    });
  });
  var $this = this, dirs=[2, 3, 1, 0], dirAt=0;

  function makeMove() {
    var dir=dirBest||dirGood||dirs[dirAt++];
    var curState= JSON.stringify($this.serialize());
    $this.move(dir);
    if (JSON.stringify($this.serialize()) == curState) {
      setTimeout(makeMove, 1);
    }
  }
  setTimeout(makeMove, 10);
};