acode-kernel/acode.html at master · mla1290/acode-kernel · GitHub

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<!doctype html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script>
%JAVASCRIPT%
var moveLimit = 200;
var compact = 0;
var rType = 0;
var turn = 0;
var hpos = 0
var hsiz = 0;
var hcom = [];
var conbot = 0;
var advtext = 0;
var advcom = 0;
var started = 0;
var gameInfo;

var advTurn = Module.cwrap('advturn', 'string', ['string']);

function scrollit()
  { window.scrollTo(0, conbot.offsetTop); }
function writeit(text)
  { var newDiv = document.createElement('div'); newDiv.id = 'chunk';
    newDiv.setAttribute('name', 'chunk'); newDiv.innerHTML = text;
    document.getElementById('advtext').insertBefore(newDiv, null); scrollit(); }

function zapit()
  { document.getElementById('comform').innerHTML = ''; }
function shutit(text)
{
  zapit();
  writeit(text + '<form><div align=center>' +
     '<input style="color:red;font-size:110%" onclick="javascript:location.reload()"' +
     'type="button" value="Play again" /><br>or<br>' +
     '<input class="custom-button" onclick="javascript:self.close()" ' +
     'type="button" value="Close this tab/window" /><br>' +
     '<span class="red">This button will only work if your ' +
     ' browser<br> is not being paranoid about security.</span></p>' +
     '</div></form>');
}
function init()
{
  FS.mkdir('/%NAME%');
  FS.mount(IDBFS, {}, '/%NAME%');
  FS.chdir('/%NAME%');
  FS.syncfs(true, init2);
}
function init2(err)
{
  if (err)
    { alert("IDBFS error: " + err) }
  else
  {
    conbot = document.getElementById('conbot');
    advtext = document.getElementById('advtext');
    advcom = document.getElementById('advcom');
    gameInfo = advTurn('_INFO_HTML_').split('|');
    document.title = gameInfo[0];
    document.getElementById('gameid').innerHTML = gameInfo[1];
    var gameList = advTurn('_LIST_').split('|');
    var savedGames = document.getElementById('saved');
    var count = 0;
    var first = 1;
    if (gameList.length > 0)
    {
      for (var i = 0; i < gameList.length; i++)
      {
        if (!gameList[i]) continue;
        document.getElementById('youcan').style.display = 'inline';
        if (gameList[i].match(/^\./))
          { document.getElementById('resume').style.display = 'inline' }
        else if (gameInfo[0] == 'Adv550' || gameInfo[0] == 'Adv660')
        {
          if (first)
          {
            first = 0;
            savedGames.innerHTML += '<br>&nbsp<br>' + gameInfo[0] +
              ' does not support loading a saved game at start, but you ' +
                'have the following saved games:';
          }
          savedGames.innerHTML +=
            (count == 0 ? '<br>' : '&nbsp;&nbsp') +
              '<b>' + gameList[i] + '</b>';
          if (++count == 5)
            count = 0;
          if (i < gameList.length - 1)
            savedGames.innerHTML += ', ';
        }
        else
        {
          if (first)
          {
            first = 0;
            savedGames.innerHTML += '<br>or load a saved game:';
          }
          savedGames.innerHTML +=
            (count == 0 ? '<br>' : '&nbsp;&nbsp') +
            '<input type=button class=query ' +
            "value='" + gameList[i] + "' " + 'onclick="javascript:startit(' +
            "'_LOAD_" + gameList[i] + "'" + ')">';
          if (++count == 5)
            count = 0;
        }
      }
    }
  }
}
function keyDown(ev)
{
  var e = ev;
  var code = (e.charCode || e.keyCode);
  if (code == 16)
    return false;
  if (code == 13)
  {
    doit('');
    return false;
  }
  if (code == 38 || code == 187 || code == 107)
    code = 1;
  else if (code == 40 || code == 189 || code == 109)
    code = -1;
  else
    code = 0;
  if (code != 0)
    hist(code);
  return false;
}
function hist(step)
{
  var h = 2 * hpos;
  hcom[h] = advcom.value;
  hpos += step;
  if (hpos < 0) hpos = 0;
  if (hpos > hsiz) hpos = hsiz;
  h = 2 * hpos;
  if (! hcom[h + 1])
    hcom[h + 1] = hcom[h];
  advcom.value = hcom[h];
  advcom.focus();
  return;
}
function showit(text)
{
  var type = text.substr(0, 1);
  if (type != 'k')
  {
    rType = type;
    writeit(text.substr(1));
    if (type == 'f')
      shutit('');
    else if (started)
      advcom.focus();
      FS.syncfs(function(error) {
        if (error)
          alert("Error while syncing" +  error);
      });
   }
}
function doit(cmd)
{
  var com = advcom.value;
  var pars;
  turn++;
  hcom[0] = com;
  var prompt = document.getElementById('prompt');
  if (prompt)
  {
    var el = document.createElement('span');
    var tx = (rType == 'q' || rType == 'm' ||
              rType == 'r' || rType == 's') ?
                prompt.innerHTML : '?';
    if (rType == 'c') tx = '<br>?';
    el.className = 'query';
    el.innerHTML = tx + ' ' + com +
      (rType == 't' ? '<br>&nbsp<br>' : '');
    prompt.parentNode.replaceChild(el, prompt);
    el = null;
  }
  advcom.value = '';
  if (com && ! com.match(/^_/))
  {
    var i;
    for (i = 1; i < hcom.length; i += 2)
    {
      if (hcom[i])
      {
         hcom[i - 1] = hcom[i];
         hcom[i] = '';
      }
    }
    if (hcom[0] == hcom[2])
      hcom[0] = '';
    else
    {
      hcom.unshift('');
      hcom.unshift('');
      hsiz++;
    }
  }
  hpos = 0;
  if (cmd) com = cmd
  else if (started == 0)
    com = '_START_';
  showit(advTurn(com));
  started = 1;
  var kids = document.getElementsByName('chunk');
  if (kids.length > moveLimit)
  {
    kids[0].parentNode.removeChild(kids[0]);
    hcom.pop();
    hcom.pop();
    hsiz--;
  }
}
function startit(what)
{
  document.getElementById('startit').style.display = 'none';
  document.getElementById('gameview').style.display = 'block';
  document.getElementById('advcom').focus();
  advcom.value = what;
  doit(what);
}
</script>
<style type="text/css">
table.main{max-width:900px; width:98%}
*.query{color:red}
*.debug{color:blue}
*.red{color:red}
*,input{color:black}
td,input{background-color:#d0e0ff}
input.advcom{width:60%;border: 1px inset #666666}
</style>
</head>
<body onload="javascript:init();" bgcolor="#222222" text="black">
<table class=main id=frame align="center" border="1" cellpadding="16">
<tbody>
<tr>
<td style="vertical-align:top">
<div id="startit">
<h2 align="center" id=gameid></h2>
<p>The game can be played entirely from the keyboard, as long as the
command input field remains in focus. Commands can be submitted by
pressing the ENTER key (a.k.a. RETURN or GO). Up and down arrow keys
allow recalling/selecting previous commands. If you wish to stop
playing and to continue at some other time, it is not necessary to use
the save command &ndash; just open this page again and you will be offered
the option of continuing the current game, if there is one. The game runs
locally on your machine &ndash; there is no network access. All data
storage relies on your browser's sand-boxed data store.</p>
</p><p align="center"><span id=youcan style="display:none">You can<br></span>
<span id=resume style="display:none">
<input value="Continue your game" class=query
onclick="javascript:startit('_RESUME_')" type="button"> or </span>
<input id=playit value="Start a new game" class="query"
onclick="javascript:startit('_START_')" type="button">
<span id=saved></span>
</p>
<p>If you have any problems getting the game working or with the game
itself, please feel free to drop me a line at <i><b>mla@mipmip.org</b></i>.</p>
<p align=center>This JavaScript version of the game is made possible by
the magic of <b>Emscripten</b><br>
(<a href="http://kripken.github.io/emscripten-site/"><i>http://kripken.github.io/emscripten-site/</i></a>).
</div>
<div id="gameview" style="display:none">
<div id="advtext"></div>
<span id="comform"><span class="query">?&nbsp;</span>
<input class="advcom" onkeydown="javascript:keyDown(event)"
id="advcom" maxlength="160" type="text">
&nbsp;&nbsp;<button onclick="javascript:doit('')">Submit</button>
&nbsp<button onclick="javascript:hist(1)">&#8593;</button>
&nbsp<button onclick="javascript:hist(-1)">&#8595;</button>
</span><br></div><div id="conbot"></div>
</td></tr></tbody></table>
</body></html>