Ball Drop

Posted: December 14, 2007 in JavaScript Stuffs

Heading Ball Drop

Description JavaScript “Drop an image from where you click on page”

Preview N/A

Code

<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 3.2 Final//EN”>
<HTML>
<HEAD>
<META NAME=”Generator” CONTENT=”Microsoft FrontPage 5.0″>
<LINK href=”general.css” rel=”stylesheet” type=”text/css”>
<SCRIPT LANGUAGE=”JavaScript1.2″>
<!– Original:  Dragos Saracu (smardoi@yahoo.com) –>
<!– Cross Browser by:  Bob Simpson (webmaster@maryjanebrown.net) –>
<!– Contributor URL:  http://www.maryjanebrown.net/webmaster  –>
<!– Begin
function BrowserCheck() {
var b = navigator.appName;
if (b == “Netscape”) this.b = “NS”;
else if (b == “Microsoft Internet Explorer”) this.b = “IE”;
else this.b = b;
this.v = parseInt(navigator.appVersion);
this.NS = (this.b == “NS” && this.v>=4);
this.NS4 = (this.b == “NS” && this.v == 4);
this.NS5 = (this.b == “NS” && this.v == 5);
this.IE = (this.b == “IE” && this.v>=4);
this.IE4 = (navigator.userAgent.indexOf(‘MSIE 4’)>0);
this.IE5 = (navigator.userAgent.indexOf(‘MSIE 5’)>0);
if (this.IE5 || this.NS5) this.VER5 = true;
if (this.IE4 || this.NS4) this.VER4 = true;
this.OLD = (! this.VER5 && ! this.VER4) ? true : false;
this.min = (this.NS||this.IE);
}
is = new BrowserCheck();
//  End –>
</script>

</HEAD>

<BODY Background=../graphics/grayback.jpg>
<center><BR><BR><BR>
Click anywhere to start script<br>
<div id=”staticBall” style=”position:relative;visibility:visible”>
<img src=”ball.gif” height=30 width=30 alt=”Static ball”>
</div>
</center>
<div id=”ball” style=”visibility:hidden; position:absolute; left:100; top:10; height:34; width:34″>
<img src=”ball.gif” height=30 width=30 alt=”Bouncing ball”>
</div>

<script language=”Javascript1.2″>
<!– Begin
iter = 0;
setId = 0;
down = true;
up = false;
bouncingBall = (is.VER5) ? document.getElementById(“ball”).style
: (is.NS) ? document.layers[“ball”]
: document.all[“ball”].style;
stillBall = (is.VER5) ? document.getElementById(“staticBall”).style
: (is.NS) ? document.layers[“staticBall”] : document.all[“staticBall”].style;
winH = (is.NS) ? window.innerHeight – 55 : document.body.offsetHeight – 55;
document.onmouseup = buttonUp;
if (is.NS4)
document.captureEvents(Event.MOUSEUP);
function buttonUp(e) {
if ( ((is.NS) ? e.which : event.button) != 1) return true;
if (setId != 0) clearInterval(setId);
bouncingBall.visibility=”visible”;
stillBall.visibility=”hidden”;
bouncingBall.left = (is.NS) ? e.pageX – 15 : event.offsetX – 15;
bouncingBall.top = (is.NS) ? e.pageY – 15 : event.offsetY – 15;
iter = 0;
setId = setInterval(“generateGravity()”, 20);
return true;
}
function generateGravity() {
if ((parseInt(bouncingBall.top)+iter < winH) && down) {
bouncingBall.top = parseInt(bouncingBall.top) + iter;
iter++;
return;
}
else {
if ((parseInt(bouncingBall.top)< winH) && down) {
bouncingBall.top = winH + 5;
return;
}
down = false;
up = true;
if (iter < 0 && parseInt(bouncingBall.top) > winH) {
clearInterval(setId);
bouncingBall.visibility = “hidden”;
stillBall.visibility=”visible”;
setId = 0;
}
if (parseInt(bouncingBall.top) > 0 && up && iter >= 0) {
bouncingBall.top = parseInt(bouncingBall.top) – iter;
iter–;
if (iter%3 == 0) iter–;
return;
}
down = true;
up = false;
}
}
// End –>
</script>

</center>
</BODY>
</HTML>

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s