21点小游戏代码求注释
<html><head>
<title>Js版21点游戏</title>
</head>
<body>
<SCRIPT LANGUAGE="JavaScript">
<!-- Hide from non-JavaScript browsers
function random(maxValue)
{
day = new Date();
hour = day.getHours();
min = day.getMinutes();
sec = day.getSeconds();
return (((hour + 1) * (min + 1) * sec) % maxValue) + 1;
}
function pickSuit()
{
suit = random(4);
if(suit == 1)
return "Spades";
if(suit == 2)
return "Clubs";
if(suit == 3)
return "Diamonds";
return "Hearts";
}
function cardName(card)
{
if(card == 1)
return "Ace";
if(card == 11)
return "Jack";
if(card == 12)
return "Queen";
if(card == 13)
return "King";
return "" + card;
}
function cardValue(card)
{
if(card == 1)
return 11;
if(card > 10)
return 10;
return card;
}
function PickACard(strWho)
{
card = random(13);
suit = pickSuit();
return cardValue(card);
}
function NewHand(form)
{
form.dealer.value = 0;
form.you.value = 0;
form.dealer.value = eval(form.dealer.value) + PickACard("Dealer");
form.you.value = eval(form.you.value) + PickACard("You");
}
function Dealer(form)
{
while(form.dealer.value < 17)
{
form.dealer.value = eval(form.dealer.value) + PickACard("Dealer");
}
}
function User(form)
{
form.you.value = eval(form.you.value) + PickACard("You");
if(form.you.value > 21)
{
alert("晕哦！！！你爆了！");
}
}
function LookAtHands(form)
{
if(form.dealer.value > 21)
{
alert("庄家爆了，恭喜你赢了");
}
else if(form.you.value > form.dealer.value)
{
alert("YOU WIN!你赢了!");
}
else
if(form.dealer.value == form.you.value)
{
alert("Push!");
}
else
{
alert("庄家赢了!");
}
}
//-->
</SCRIPT>
<CENTER><H2>21点</H2></CENTER>
<CENTER>开始游戏请点击“洗牌”</CENTER>
<HR>
<CENTER>
<FORM>
<TABLE BORDER=3>
<TR>
<TD>庄家：</TD>
<TD><INPUT TYPE=TEXT NAME=dealer size="20">点</TD>
</TR>
<TR>
<TD>你：</TD>
<TD><INPUT TYPE=TEXT NAME=you size="20">点</TD>
</TR>
</TABLE>
<P>
<CENTER>
<INPUT TYPE=BUTTON VALUE="再来一张" onClick=User(this.form)>
<INPUT TYPE=BUTTON VALUE="亮牌" onClick="Dealer(this.form);LookAtHands(this.form);">
<INPUT TYPE=BUTTON VALUE="洗牌" onClick=NewHand(this.form)>
</CENTER>
</body>
</html>
