PHP+Javascript模拟Matrix画面

直接存为*.php文件运行即可。

<?
  $color_back="#000000";
  $number_w=8;
  $number_h=6;
  $space=1;
  $font_size=20;
  $speed=0;
?>
<html>
<head>
<title>The Matrix</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<script language="javascript">
// *****************************************************************
//                   Written By Caocao
//                   caocao@eastday.com
//                   http://caocao.oso.com.cn
// *****************************************************************
number_h=<? echo $number_h;?>;
number_w=<? echo $number_w;?>;
step=5;
text=new Array("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z");
grad=new Array("#000000","#004000","#008000","#00C000","#00FF00");

function line()
{
  this.start=100;
  this.end=60;
  this.restart=0;
}

function randchar()
{
  return (text[Math.round(Math.random()*25)]);
}

function initial()
{
  matrix=new Array();
  light=new Array();
  for (i=0;i<number_h;i++)
  {
    for (j=0;j<number_w;j++)
    {
      matrix[i*number_h+j]="<? echo $color_back;?>";
    }
  }
  for (j=0;j<number_w;j++)
  {
    light[j]=new line();
  }
}

function new_light()
{
  for (j=0;j<number_w;j++)
  {
    if (light[j].restart==0)
    {
      light[j].start=0;
      light[j].end=-10-Math.round(Math.random()*20);
      light[j].restart=light[j].end-Math.round(Math.random()*20);
    }
    else
    {
      light[j].start++;
      light[j].end++;
      light[j].restart++;
    }
  }
}

function new_color(i,j)
{
  if ((light[j].start-i)<5&&(light[j].start-i)>0)
  {
    return (light[j].start-i);
  }
  if ((i-light[j].end)<5&&(i-light[j].end)>0)
  {
    return (i-light[j].end);
  }
  if ((i-light[j].end)>4&&(light[j].start-i)>4)
  {
    return (4);
  }
  return (0);
}

function display()
{
  for (i=0;i<number_h;i++)
  {
    for (j=0;j<number_w;j++)
    {
      eval("w"+i+"h"+j).innerHTML="<font color="+grad[new_color(i,j)]+">"+randchar()+"</font>";
    }
  }
}

function show()
{
  new_light();
  display();
  setTimeout("show()",<? echo $speed;?>);
}
</script>
<style type="text/css">

</style>
</head>

<?
  echo "<body bgcolor=".$color_back.">";

  echo "<table width=".($number_w*$font_size)." border=0 cellspacing=".$space." cellpadding=0>";
  for ($i=0;$i<$number_h;$i++)
  {
    echo "<tr>";
    for ($j=0;$j<$number_w;$j++)
    {
      echo "<td id=w".$i."h".$j.">M</td>";
    }
    echo "</tr>";
  }
  echo "</table>";
?>

<script language="javascript">
  initial();
  show();
</script>
</body>
</html>