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Print - Elastic Trail Script - JavaScriptBank.com

Full version: jsB@nk » Pointer » Trailer » Elastic Trail Script
URL: http://www.javascriptbank.com/elastic-trail-script.html

Elastic Trail Script © JavaScriptBank.comAnother mouse trail effect, this one follows the mouse in a whimsical, bouncy manner. Easy to setup, and works cross browser!

Full version: jsB@nk » Pointer » Trailer » Elastic Trail Script
URL: http://www.javascriptbank.com/elastic-trail-script.html



JavaScript
<SCRIPT language=JavaScript><!-- hide code/*Elastic Trail script (By Philip Winston @ pwinston@yahoo.com, URL: http://www.geocities.com/pwinston/)Script featured on Dynamicdrive.comFor this and 100's more DHTML scripts, visit http://dynamicdrive.com*/var nDots = 7;var Xpos = 0;var Ypos = 0;var DELTAT = .01;var SEGLEN = 10;var SPRINGK = 10;var MASS = 1;var XGRAVITY = 0;var YGRAVITY = 50;var RESISTANCE = 10;var STOPVEL = 0.1;var STOPACC = 0.1;var DOTSIZE = 11;var BOUNCE = 0.75;var isNetscape = navigator.appName=="Netscape";var followmouse = true;var dots = new Array();init();function init(){    var i = 0;    for (i = 0; i < nDots; i++) {        dots[i] = new dot(i);    } if (!isNetscape) {    }    for (i = 0; i < nDots; i++) {        dots[i].obj.left = dots[i].X;        dots[i].obj.top = dots[i].Y;    }    if (isNetscape) {        startanimate();    } else {        setTimeout("startanimate()", 1000);    }}function dot(i) {    this.X = Xpos;    this.Y = Ypos;    this.dx = 0;    this.dy = 0;    if (isNetscape) {        this.obj = eval("document.dot" + i);    } else {        this.obj = eval("dot" + i + ".style");    }}function startanimate() {    setInterval("animate()", 20);}function setInitPositions(dots){    var startloc = document.all.tags("LI");    var i = 0;    for (i = 0; i < startloc.length && i < (nDots - 1); i++) {        dots[i+1].X = startloc[i].offsetLeft            startloc[i].offsetParent.offsetLeft - DOTSIZE;        dots[i+1].Y = startloc[i].offsetTop +            startloc[i].offsetParent.offsetTop + 2*DOTSIZE;    }    dots[0].X = dots[1].X;    dots[0].Y = dots[1].Y - SEGLEN;}function MoveHandler(e){    Xpos = e.pageX;    Ypos = e.pageY;      return true;}function MoveHandlerIE() {    Xpos = window.event.x + document.body.scrollLeft;    Ypos = window.event.y + document.body.scrollTop;  }if (isNetscape) {    document.captureEvents(Event.MOUSEMOVE);    document.onMouseMove = MoveHandler;} else {    document.onmousemove = MoveHandlerIE;}function vec(X, Y){    this.X = X;    this.Y = Y;}function springForce(i, j, spring){    var dx = (dots[i].X - dots[j].X);    var dy = (dots[i].Y - dots[j].Y);    var len = Math.sqrt(dx*dx + dy*dy);    if (len > SEGLEN) {        var springF = SPRINGK * (len - SEGLEN);        spring.X += (dx / len) * springF;        spring.Y += (dy / len) * springF;    }}function animate() {    var start = 0;    if (followmouse) {        dots[0].X = Xpos;        dots[0].Y = Ypos;        start = 1;    }    for (i = start ; i < nDots; i++ ) {        var spring = new vec(0, 0);        if (i > 0) {            springForce(i-1, i, spring);        }        if (i < (nDots - 1)) {            springForce(i+1, i, spring);        }        var resist = new vec(-dots[i].dx * RESISTANCE,            -dots[i].dy * RESISTANCE);        var accel = new vec((spring.X + resist.X)/MASS + XGRAVITY,            (spring.Y + resist.Y)/ MASS + YGRAVITY);        dots[i].dx += (DELTAT * accel.X);        dots[i].dy += (DELTAT * accel.Y);        if (Math.abs(dots[i].dx) < STOPVEL &&            Math.abs(dots[i].dy) < STOPVEL &&            Math.abs(accel.X) < STOPACC &&            Math.abs(accel.Y) < STOPACC) {            dots[i].dx = 0;            dots[i].dy = 0;        }        dots[i].X += dots[i].dx;        dots[i].Y += dots[i].dy;        var height, width;        if (isNetscape) {            height = window.innerHeight + window.pageYOffset;            width = window.innerWidth + window.pageXOffset;        } else {            height = document.body.clientHeight + document.body.scrollTop;            width = document.body.clientWidth + document.body.scrollLeft;        }        if (dots[i].Y >=  height - DOTSIZE - 1) {            if (dots[i].dy > 0) {                dots[i].dy = BOUNCE * -dots[i].dy;            }            dots[i].Y = height - DOTSIZE - 1;        }        if (dots[i].X >= width - DOTSIZE) {            if (dots[i].dx > 0) {                dots[i].dx = BOUNCE * -dots[i].dx;            }            dots[i].X = width - DOTSIZE - 1;        }        if (dots[i].X < 0) {            if (dots[i].dx < 0) {                dots[i].dx = BOUNCE * -dots[i].dx;            }            dots[i].X = 0;        }        dots[i].obj.left = dots[i].X;        dots[i].obj.top =  dots[i].Y;    }}// end code hiding --></SCRIPT><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->


HTML
<DIV id=dot0 style="HEIGHT: 11px; POSITION: absolute; VISIBILITY: hidden; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot1 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot2 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot3 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot4 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot5 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><DIV id=dot6 style="HEIGHT: 11px; POSITION: absolute; WIDTH: 11px"><IMG height=11 src="image1.gif" width=11></DIV><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->


Files
http://javascriptbank.com/javascript/mouse/image1.gif