<!doctype html>
<html>
<head>
<script src="http://localhost:8000/socket.io/socket.io.js"></script>
<script src="http://code.jquery.com/jquery-1.6.2.min.js"></script>
<script>
var name='';
var socket = io.connect('http://localhost:8000');
$(document).ready(function() {
//var app = require('http').createServer(handler),
//io = require('socket.io').listen(app);
//app.listen(8000);
//var url = 'http://localhost:8000';
//var socket = io.connect(url);
//socket.connect();
//socket.on('movement', function() {socket.send();
//console.log('Connected!');});
while (name == '') { name = prompt("What's your name?",""); }
var left =5;
var top = 5;
var width =20;
var height =20;
var rcolor= get_random_color();
var ctx = $('#cgame')[0].getContext("2d");
ctx.fillStyle = rcolor;
ctx.fillRect(left, top, width, height);
ctx.lineWidth = 10;
$(document).keydown(onkeydown);
socket.emit('movement', function onkeydown(left,top, width, height)
{
var kycode;
if (evt!= null)
{
kycode = evt.keyCode;
ctx = $('#cgame')[0].getContext("2d");
switch(kycode)
{
case 37: //left
if(left >> ctx.left){
call: clear();
left--;
call:draw();
//alert("Hi left");
break;
}
case 38: //up
if(top >> ctx.top)
{
call: clear();
top--;
call:draw();
//alert("Hi Up");
break;
}
case 39://right
if((left+width) << (ctx.width+ctx.left) )
{
call: clear();
left++;
call:draw();
//alert("Hi right");
break;
}
case 40:
{
call: clear();
top++;
call:draw();
//alert("Hi down");
break;
}
Default:
{
alert("Hi");
break;
}
}
}
}
);
function get_random_color()
{
var letters = '0123456789ABCDEF'.split('');
var color = '#';
for (var i = 0; i < 6; i++ )
{
color += letters[Math.round(Math.random() * 15)];
}
return color;
}
function clear()
{
ctx.width = ctx.width;
ctx.height = ctx.height;
ctx = $('#cgame')[0].getContext("2d");
ctx.clearRect(0,0,cgame.width,cgame.height);
}
function draw()
{
ctx.width = ctx.width;
ctx.height = ctx.height;
ctx = $('#cgame')[0].getContext("2d");
ctx.fillRect(left, top, width, height);
}
socket.emit('register', name );
$('#Name').hide();
$('#Game').hide();
$('#start').hide();
});
</script>
</head>
<body>
<label id="Game">Welcome to Node JS Gaming</label>
<input type='text' id ='Name'>
<input type='button' id="start" value= 'login' Onclick="welcome()" >
<div>
<canvas id= "cgame" style="border:1px solid #000000; width: 100%; height: 100%;"; onkeydown ="onkeydown"></canvas>
</div>
</body>
</html>
尝试的套接字代码:
var io = require('socket.io').listen(8000);
io.sockets.on('connection', function (socket)
{
socket.on('movement',function(left,top, width, height){});
socket.broadcast.emit('movement', {
});
});
}
);
//io.sockets.emit();
我必须将左上角的宽度和高度值传递给服务器,以便该值反映在另一个客户端上。例如,两个客户端是 Chrome 和 Mozilla,每当用户按下向上、向下、向左或向右时,都必须移动相应的矩形。同样,它也应该发生在其他用户身上。
我不知道如何传递值。抱歉这么幼稚;我是node.js
.
请让我知道服务器端的适当代码是什么。