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射击
中国素材网 www.sucai86.com 2005-3-31 13:40:38 流量数:
射击
[
查看演示
] 源码如下
----------------------------------------------------------------------------------------
<html>
<BODY bgcolor="#fef4d9">
<SCRIPT LANGUAGE="JavaScript">
// ---- Make array
function MakeArray( n){ this.length = n;
for (var i = 1; i <= n; i++) {
this[i] = 0
}
return this
}
// ----- poor man's random number
var d0 = new Date();
var r0 = d0.getSeconds();
function poor_rand(){
d1 = new Date();
r0 = (r0 * r0 + r0 + d1.getSeconds()) % 3721 ;
return r0 % width_n;
}
// ---- Parameters of game
var height_n = 8;
var width_n =5;
// ---- state of game
var enemy = new MakeArray( width_n); // enemy positions
var wtime; // wait time
var score; // points
var gameover; // in case of gameover set to true
// ----- Make the battlefield.
document.write( "<FORM NAME='fm1'>");
document.write( "<INPUT TYPE='text' NAME='message' SIZE=20>");
document.write( "</FORM>");
document.write( "<FORM NAME='fm2'><TABLE>");
for( var i=0; i<height_n; i++){
document.write( "<TR>");
for( var j=0;j<width_n; j++){
document.write( "<TD><CENTER><INPUT TYPE='radio'></CENTER></TD>");
}
document.write( "</TR>");
}
document.write( "<TR>");
for( var j=0;j<width_n; j++){
document.write( "<TD><INPUT TYPE='button' VALUE='A' onClick='fire("
+ j + ")'></TD>");
}
document.write( "</TR>");
document.write( "</TABLE>");
document.write( "<INPUT TYPE='button' VALUE='START' onClick='game_start()'>");
document.write( "</FORM>");
// ----- game main timer event
// ----- enemy come one step
function come(){
var n = poor_rand();
document.fm2.elements[ width_n * enemy[n+1] + n].checked = true;
enemy[n+1]++;
if( enemy[n+1] < height_n){
setTimeout("come()", wtime);
}else{
gameover = true;
document.fm1.message.value = "GAME OVER:" + score ;
}
}
// ----- Fire the n th beam
function fire( n){
if( gameover ) return;
for( var i=0; i<enemy[n+1]; i++){ // clear enemy
document.fm2.elements[ width_n * i + n].checked = false;
}
score += enemy[ n+1];
document.fm1.message.value = "Points:" + score;
enemy[ n+1] = 0;
if( wtime > 50){ wtime -= 10};
}
// ---- initialize & start game
function game_start(){
for( var n=0; n<width_n; n++){
for( var i=0; i<enemy[n+1]; i++){
document.fm2.elements[ width_n * i + n].checked = false;
}
enemy[n+1] = 0;
}
wtime = 150;
score = 0;
gameover = false;
document.fm1.message.value = "Points:" + score;
setTimeout("come()", wtime);
}
// -->
</SCRIPT>
</bady></html>
<div style="position: absolute; top: 10; right: 10; width: 148; height: 18;cursor:hand">
<input type="button" name="Button" value="查看源代码" onClick= 'window.location = "view-source:" + window.location.href'></div> ----------------------------------------------------------------------------------------
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