topical media & game development
lib-js-math-calculator-armor-penetration.htm / htm
<!-- TWO STEPS TO INSTALL ARMOR:
1. Copy the coding into the HEAD of your HTML document
2. Add the last code into the BODY of your HTML document -->
<!-- STEP ONE: Paste this code into the HEAD of your HTML document -->
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original: Cut-N-Paste JavaScript from ISN Toolbox
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin
var c1;
var c2;
var convert_to_degrees = (2*3.1415)/360.0;
function compute_pen(c1,c2,r,ang) {
if (is_number(r)) {
new_pen = Math.pow((c1*Math.exp(-c2*range3)),0.7);
if (is_number(ang)) {
ang = parseInt(ang);
ang = ang*convert_to_degrees;
new_pen = new_pen*Math.pow(Math.cos(ang),1.5);
}
return Math.round(new_pen);
}
else {
return "";
}
}
function is_number(a_string) {
tc = a_string.charAt(0);
if (tc == "0" || tc == "1" || tc == "2" || tc == "3" || tc == "4" || tc == "5" || tc == "6" || tc == "7" || tc == "8" || tc == "9") {
return true;
}
else {
return false;
}
}
function compute_constants(form) {
range1 =form.inputrange1.value;
range2 =form.inputrange2.value;
pen1 = form.pen1.value;
pen2 =form.pen2.value;
if (is_number(range1) && is_number(range2) && is_number(pen1) && is_number(pen2)) {
range1 = parseInt(range1);
range2 = parseInt(range2);
pen1 = parseInt(pen1);
pen2 = parseInt(pen2);
ang1 = form.ang1.value;
ang2 = form.ang2.value;
if (is_number(ang1)) {
ang1 = parseInt(ang1);
ang1 = ang1 * convert_to_degrees;
pen1 = pen1/Math.pow(Math.cos(ang1),1.5);
}
if (is_number(ang2)) {
ang2 = parseInt(ang2);
ang2 = ang2 * convert_to_degrees;
pen2 = pen2/Math.pow(Math.cos(ang2),1.5);
}
c2 = Math.log(Math.pow(pen2,1.4286)/Math.pow(pen1,1.4286))/(-range2 + range1);
temp = (range1*c2);
c1 = Math.pow(pen1,1.4286) * Math.exp(temp);
return true;
}
else {
alert("You need to enter two different ranges and the penetration at those ranges.");
return false;
}
}
function armorpen(form) {
if (compute_constants(form)) {
range3 = form.computerange1.value;
ang = form.c_ang_1.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen1.value = new_pen;
range3 = form.computerange2.value;
ang = form.c_ang_2.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen2.value = new_pen;
range3 =form.computerange3.value;
ang = form.c_ang_3.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen3.value = new_pen;
range3 =form.computerange4.value;
ang = form.c_ang_4.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen4.value = new_pen;
range3 =form.computerange5.value;
ang = form.c_ang_5.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen5.value = new_pen;
range3 =form.computerange6.value;
ang = form.c_ang_6.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen6.value = new_pen;
range3 =form.computerange7.value;
ang = form.c_ang_7.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen7.value = new_pen;
range3 =form.computerange8.value;
ang = form.c_ang_8.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen8.value = new_pen;
range3 =form.computerange9.value;
ang = form.c_ang_9.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen9.value = new_pen;
range3 =form.computerange10.value;
ang = form.c_ang_10.value;
new_pen = compute_pen(c1,c2,range3,ang);
form.computepen10.value = new_pen;
}
}
// End -->
</SCRIPT>
</HEAD>
<!-- STEP TWO: Copy this code into the BODY of your HTML document -->
<BODY>
<center>
<FORM>
<H3>Gun Type</H3>
<INPUT NAME="gunname" TYPE="text" SIZE="30">
<PRE> Range Penetration Angle</PRE>
<INPUT NAME="inputrange1" TYPE="text" SIZE="10" VALUE = "500">
<INPUT NAME="pen1" TYPE="text" SIZE="10" >
<INPUT NAME="ang1" TYPE="text" SIZE="10">
<BR>
<INPUT NAME="inputrange2" TYPE="text" SIZE="10" VALUE = "1000">
<INPUT NAME="pen2" TYPE="text" SIZE="10" >
<INPUT NAME="ang2" TYPE="text" SIZE="10">
<BR>
<INPUT NAME="compute" TYPE="button" VALUE="Compute" onClick="armorpen(this.form)">
<BR>
<HR>
<INPUT NAME="computerange1" TYPE="text" SIZE="10" VALUE = "250">
<INPUT NAME="computepen1" TYPE="text" SIZE="10">
<INPUT NAME="c_ang_1" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange2" TYPE="text" SIZE="10" VALUE = "500">
<INPUT NAME="computepen2" TYPE="text" SIZE="10">
<INPUT NAME="c_ang_2" TYPE="text" SIZE="10">
<BR>
<INPUT NAME="computerange3" TYPE="text" SIZE="10" VALUE = "750">
<INPUT NAME="computepen3" TYPE="text" SIZE="10">
<INPUT NAME="c_ang_3" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange4" TYPE="text" SIZE="10" VALUE = "1000">
<INPUT NAME="computepen4"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_4" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange5" TYPE="text" SIZE="10" VALUE = "1250">
<INPUT NAME="computepen5"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_5" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange6" TYPE="text" SIZE="10" VALUE = "1500">
<INPUT NAME="computepen6"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_6" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange7" TYPE="text" SIZE="10" VALUE = "1750">
<INPUT NAME="computepen7"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_7" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange8" TYPE="text" SIZE="10" VALUE = "2000">
<INPUT NAME="computepen8"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_8" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange9" TYPE="text" SIZE="10">
<INPUT NAME="computepen9"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_9" TYPE="text" SIZE="10"><BR>
<INPUT NAME="computerange10" TYPE="text" SIZE="10">
<INPUT NAME="computepen10"TYPE="text" SIZE="10">
<INPUT NAME="c_ang_10" TYPE="text" SIZE="10"><BR>
</FORM>
</center>
<p><center>
<font face="arial, helvetica" size="-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>
<!-- Script Size: 5.70 KB -->
(C) Æliens
20/2/2008
You may not copy or print any of this material without explicit permission of the author or the publisher.
In case of other copyright issues, contact the author.
