JS1k, the yearly JS code golfing competition

JS1k: The JavaScript code golfing competition

2014 - Here be dragons!

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Elimination!

Click anywhere on the board to launch your missiles. You have 8 moves to clear all 50 pieces off the board. Can you eliminate them all?

Author:
Frederick Polgardy
Twitter:
@
GitHub:
Facebook:
Google+:
+
Reddit:
/r/
Pouet:
Website: 
Compo:
classic
Demo link:
https://js1k.com/2014-dragons/demo/1777
Shortlink:
https://js1k.com/1777
Blog post:
please update here!
Bytes:
1015
Chars:
1015
Submission
function l(){return Math.floor(Math.random()*a)}function k(b,h,k,l){++e,function m(b,h){if(b<0||b>=a||h<0||h>=a)--e||(--d,i());else{var n=t[f][0][f][h][f][b];n[g]=="o"?(n[g]="",--c,--e,i(),j(b,h)):(n[g]="b",setTimeout(function(){n[g]="",k!=0?m(b+k,h):m(b,h+l)},25))}}(b,h)}function j(a,b){k(a,b,-1,0),k(a,b,1,0),k(a,b,0,-1),k(a,b,0,1)}function i(){u.innerHTML=!d&&c?"You Lose!":c?"Moves: "+d+" &mdash; Pieces: "+c:"You Win!"}var a=50,c=50,d=8,e=0,f="children",g="className",h="parentNode";b.innerHTML='<style>body{background:#111;margin:10px;}h2{color:#EEE}table{border-collapse:collapse;border-spacing:0}td{border:1px solid #333;width:8px;height:8px}td:hover{background:#444}.b{background:#EEE}.o{background:#F80}</style><h2 id="u">Click Any Square To Play</h2><table id="t">'+Array(a+1).join("<tr>"+Array(a+1).join("<td></td>")+"</tr>")+"</table>",t.onclick=function(a){var b=a.target;d&&c&&!e&&j(b.cellIndex,b[h].rowIndex)};for(var m=0;m<c;++m)for(;;){var n=t[f][0][f][l()][f][l()];if(n[g]!="o"){n[g]="o";break}}
Description
Click anywhere on the board to launch your missiles. You have 8 moves to clear all 50 pieces off the board. Can you eliminate them all?
Base64 encoded
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Original source
var size = 50,
    pieces = 50,
    moves = 8,
    bullets = 0,
    children = 'children',
    className = 'className',
    parentNode = 'parentNode';

function updateStatus() {
  u.innerHTML = (
    !moves && pieces ? 'You Lose!' : (
      !pieces ? 'You Win!' :
      'Moves: ' + moves + ' &mdash; Pieces: ' + pieces));
}

function fireBullets(x, y) {
  fireBullet(x, y, -1,  0);
  fireBullet(x, y,  1,  0);
  fireBullet(x, y,  0, -1);
  fireBullet(x, y,  0,  1);
}

function fireBullet(x, y, dx, dy) {
  ++bullets;

  (function moveBullet(x, y) {
    if (x < 0 || x >= size || y < 0 || y >= size) {
      if (!--bullets) {
        --moves;
        updateStatus();
      }
    } else {
      var cell = t[children][0][children][y][children][x];

      if (cell[className] == 'o') {
        cell[className] = '';
        --pieces;
        --bullets;
        updateStatus();
        fireBullets(x, y);
      } else {
        cell[className] = 'b';
        setTimeout(function() {
          cell[className] = '';
          if (dx != 0) {
            moveBullet(x + dx, y);
          } else {
            moveBullet(x, y + dy);
          }
        }, 25);
      }
    }
  }(x, y));
}

function random() {
  return Math.floor(Math.random() * size);
}

b.innerHTML =
  '<style>' +
  'body{background:#111;margin:10px;}' +
  'h2{color:#EEE}' +
  'table{border-collapse:collapse;border-spacing:0}' +
  'td{border:1px solid #333;width:8px;height:8px}' +
  'td:hover{background:#444}' +
  '.b{background:#EEE}' +
  '.o{background:#F80}' +
  '</style>' +
  '<h2 id="u">Click Any Square To Play</h2>' +
  '<table id="t">' +
  Array(size + 1).join('<tr>' + Array(size + 1).join('<td></td>') + '</tr>') +
  '</table>';

t.onclick = function(event) {
  var cell = event.target;

  if (moves && pieces && !bullets) {
    fireBullets(cell.cellIndex, cell[parentNode].rowIndex);
  }
}

for (var i = 0; i < pieces; ++i) {
  for (;;) {
    var cell = t[children][0][children][random()][children][random()];

    if (cell[className] != 'o') {
      cell[className] = 'o';
      break;
    }
  }
}