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In - Con chuột 'dây cao su' - JavaScriptBank.com

Phiên bản đầy đủ: jsB@nk » Con trỏ » Di chuyển theo chuột » Con chuột 'dây cao su'
URL: https://www.javascriptbank.com/elastic-trail-script.html

Con chuột 'dây cao su' © JavaScriptBank.comMột đoạn mã khác có tác dụng tương tự hiệu ứng Con trỏ 'kiểu dây cao su' nhưng đoạn cao su trong hiệu ứng này gồm từng mắc nối lại với nhau.

Phiên bản đầy đủ: jsB@nk » Con trỏ » Di chuyển theo chuột » Con chuột 'dây cao su'
URL: https://www.javascriptbank.com/elastic-trail-script.html



JavaScript
<SCRIPT language=JavaScript><!-- hide code/*Elastic Trail script (By Philip Winston @ [email protected], 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