当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 初试javascript ：贪吃蛇啊

Javascript
jquery ajax提交表单数据的两种方式
js数字输入框(包括最大值最小值限制和四舍五入)
文本框的字数限制功能jquery插件
JavaScript让IE浏览器event对象符合W3C DOM标准
为jquery.ui.dialog 增加“在当前鼠标位置打开”的功能
为jquery.ui.dialog 增加“自动记住关闭时的位置”的功能
js版扫雷实现代码 原理不错
鼠标跟随的文字变动效果
JS 判断undefined的实现代码
Ext grid 添加右击菜单
javascript或asp实现的判断身份证号码是否正确两种验证方法
javascript 获取元素位置的快速方法 getBoundingClientRect()
javascript 面向对象继承
JavaScript 地震特效
jquery.ui.progressbar 中文文档
JS 拖动效果实现代码 比较简单
JS小框架 fly javascript framework
JS在IE和FF下attachEvent,addEventListener学习笔记
js 对联广告、漂浮广告封装类（IE,FF,Opera,Safari,Chrome
js 动态选中下拉框

No. « 241 242 243 244 »

技术文章搜索

关键字

Javascript 中的 初试javascript ：贪吃蛇啊

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-08-10   浏览: 122 ::
收藏到网摘: n/a

好久没接触javascript，近日看了看，试试手

界面是参考 lxx8402的俄罗斯方块方法，觉得不错，借用了谢谢，不要P我

原码如下,写的仓促，也没有放积分，参数可以自己修改前面的默认值，

初次发布，恳请交流指教~~~*_*:

tcs.html:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<STYLE>
.btnup{
         border-left:solid #ffffff 1px;
         border-top:solid #ffffff 1px;
         border-right:solid #828486 1px;
         border-bottom:solid #828486 1px;
   font-size: 9pt;
   cursor:default
        }
tr{
  font-family:"宋体";
  font-size: 9pt;
  cursor: default
}
</STYLE>
</HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!--
var row = 25,col = 25,size=16;
var delay = 300;//移动延迟
var paused = false;
var end = false
var TimerID;
var s = new snake();
var n = new nut();
var nutad = new Array();
nutad[0] = -1;
nutad[1] = -1;
var Color = new Array(5);
Color[0] = "#d0d0d0";
Color[1] = "red";
Color[2] = "green"
Color[3] = "blue";
Color[4] = "yellow";
var move_direction = new Array();
var curr_direction = new Array();
move_direction[0] = 1;
move_direction[1] = 0;

//========================================
//定义果实
function nut()
{
 this.x = -1;
 this.y = -1;
}

function nut_show()
{
 if (this.x<0 || this.y < 0 )
  return;
 obj = document.all("Main" + this.x + "#" + this.y);
 obj.style.background = Color[2];
}

function nut_create()
{
 var inx = -1;
 var iny = -1;
 for(;;)
 {
  var cur = true;
  inx = Math.round(Math.random() * (row-1));
  iny = Math.round(Math.random() * (col-1));
  for (var i = 0; i<s.items.length ; i++)
  {
   if (s.items[i].x == inx && s.items[i].y == iny)
   {
    cur = false;
    break;
   }
  }
  if (cur)
  {
   break;
  }
 }
 this.x = inx;
 this.y = iny;
 nutad[0] = inx;
 nutad[1] = iny;
 this.show();
}

function nut_eated()
{
 if (this.x<0 || this.y < 0)
  return;
 obj = document.all("Main" + this.x + "#" + this.y);
 obj.style.background = Color[0];
}
nut.prototype.create = nut_create;
nut.prototype.show = nut_show;
nut.prototype.eated = nut_eated;

//========================================
//定义蛇体
function snake()
{
 this.items = new Array();
}

function snake_eat(nt)
{
 var s_length = this.items.length;
 this.items[s_length] = nt;
}

function snake_move(dir)
{
 this.destroy();
 var y = this.items[0].y;
 var x = this.items[0].x;
 var nx = x + dir[1];
 var ny = y + dir[0];
 if (nx <0 || nx >= row || ny <0 || ny >= col || crossed(nx,ny))
 {
  end = true;
  return;
 }
 caneat(nx,ny);
 for (var i = this.items.length-1 ; i>=0 ; i --)
 {

  if (i != 0)
  {
   this.items[i].move(this.items[i-1].x,this.items[i-1].y);
  }
  else
  {
   this.items[i].move(nx,ny);   
  }
 }
 this.reload();
}

function caneat(nx,ny)
{
 if (nx == nutad[0] && ny == nutad[1])
 {
  var lst = s.items[s.items.length-1];
  var nd = new snakeNode(lst.x,lst.y);
  s.eat(nd);
  n.eated();
  n.create();
 }

}
//禁止穿越自身节点
function crossed( nx,  ny )
{
 for (var i = 0; i<s.items.length; i++)
 {
  if (s.items[i].x == nx && s.items[i].y == ny)
  {
   return true;
  }
 }
 return false;
}

function snake_reload()
{
 for (var i = 0 ; i<this.items.length ; i ++)
 {
  var curNode = this.items[i];
  obj = document.all("Main" + curNode.x + "#" + curNode.y);
  obj.style.background = Color[1];
 }
}

function snake_destroy()
{
 for (var i = 0 ; i<this.items.length ; i ++)
 {
  var curNode = this.items[i];
  obj = document.all("Main" + curNode.x + "#" + curNode.y);
  obj.style.background = Color[0];
 }
}

function snake_clear()
{
 this.destroy();
 this.items = new Array();
}

snake.prototype.eat = snake_eat;
snake.prototype.move = snake_move;
snake.prototype.reload = snake_reload;
snake.prototype.destroy = snake_destroy;
snake.prototype.clear = snake_clear;

//蛇体节点
function snakeNode(x,y)
{
 this.id = 0;//编号
 this.x = x;//坐标X
 this.y = y;//坐标Y
 this.color = "#000000";
}

function snakeNode_setC(d_color)
{
 this.color = d_color;
}

function snakeNode_move(dx,dy)
{
 this.x = dx;
 this.y = dy;
}

snakeNode.prototype.setColor = snakeNode_setC ;
snakeNode.prototype.move = snakeNode_move ;

//========================================
//程序界面
//初始化主控制区
function DrawArea(row,col,name){
 var s = "<TABLE BORDER=1 cellspacing=0 cellpadding=1 bgcolor=" + Color[0] + ">";
 for(var i=0; i<row; i++){
  s = s + "<TR Height=" + size + ">";
  for(var j=0; j<col; j++){
   var id = name + i + "#" + j;
   s = s + "<TD Width=" + size + " class=btnup id=" + id;
   s = s + " style=\"background:" + Color[0] + "\">&nbsp;</TD>"
  }
  s = s + "</TR>";
 }
 s = s + "</TABLE>";
 return s;
}

//初始化
function Init(){
 MainArea.innerHTML = DrawArea(row,col,'Main');
}

//==================================
//程序控制区，用来接收输入、定义控制方法
//控制输入
function keyDown(){
 switch(event.keyCode)
 {
  case 37:
   if (curr_direction[0] != -1)
   {
   move_direction[0] = -1;
   move_direction[1] = 0;
   }
   break;
  case 38:
   if (curr_direction[1] != -1)
   {
   move_direction[0] = 0;
   move_direction[1] = -1;
   }
   break;
  case 39:
   if (curr_direction[0] != 1)
   {
   move_direction[0] = 1;
   move_direction[1] = 0;
   }
   break;
  case 40:
   if (curr_direction[1] != 1)
   {
   move_direction[0] = 0;
   move_direction[1] = 1;
   }
   break;
 }
}

function Begin()
{
 end = false;
 paused = false;
 s.clear();
 for (var i = 8; i >=0 ; i--)
 {
  sn = new snakeNode(0,i);
  s.eat(sn);
 }
 n.eated();
 n.create();
 move_direction[0] = 1;
 move_direction[1] = 0;
 curr_direction[1] = s.items[1].x - s.items[0].x;
 curr_direction[0] = s.items[1].y - s.items[0].y;
 Start();
}

//启动开关
function Start()
{
 if (end)
 {
  s.reload();
  alert("挂了！");
  return;
 }
 window.clearInterval(TimerID);
 TimerID = window.setInterval("Run()",delay);
}

//运行主体
var d = true;
function Run(){
 if(paused) return;
 if(true){
  window.clearInterval(TimerID);
  s.move(move_direction);
  curr_direction[1] = s.items[1].x - s.items[0].x;
  curr_direction[0] = s.items[1].y - s.items[0].y;
  Start();
 }
 }

//暂停开关
function Pause()
{
 if (paused)
 {
  paused = false;
  if (!end)
  {
   Run();
  }
 }
 else
 {
  paused = true;
 }
}

//结束
function Over()
{
 end = true;
}
//-->
</SCRIPT>
<BODY BGCOLOR="#FFFFFF" onload="Init()" onkeydown="keyDown()" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<TABLE border="0" cellspacing="0" cellpadding="0" align="center" width="80%">
  <TR>
<TR valign="top" width="80%">
 <TD><SPAN ID="MainArea"></SPAN></TD>
 <TD align="center">
  <BUTTON ID="start" onclick="Begin()">Start</BUTTON><br>
  <BUTTON ID="pause" onclick="Pause()">pause</BUTTON><br>
  <BUTTON ID="over" onclick="Over()">End</BUTTON><br>
 </TD>
</TR>
</TABLE>
</BODY>
</HTML>