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functions-head.js
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functions-head.js
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//FUNC
function gafd(a,b) //! returns angle from xdir, ydir
{
var c = 180 * Math.atan2(b,a) / Math.PI;
0 > c && (c += 360);
360 < c && (c -= 360);
return c
}
function cdir(theta) //! Gets [xdir, ydir] from angle
{
var x = Math.cos(theta);
var y = Math.sin(theta);
return [x,y];
}
function fileOpen(callback,type="plain/text")
{
if(window.FileReader)
{
var f = document.createElement("input");
f.type = "file";
f.onchange = function(e)
{
if(e.target.files.length > 0)
{
var r = new FileReader();
r.onload = function(e)
{
callback(e.target.result);
}
for(var i=0;i<e.target.files.length;i++)
{
switch(type)
{
case "plain/text":
r.readAsText(e.target.files[i]);
break;
default:
r.readAsDataURL(e.target.files[i]);
break;
}
}
}
}
f.click();
}
else
{
alert("FileReader doesn't exist in this browser. Contact nelg.");
return false;
}
}
function fileSave(filename,data,type="plain/text") //Based on https://stackoverflow.com/a/30832210
{
//TODO: get type from filename / data ?
var file = new Blob([data],{type:type});
if(window.navigator.msSaveOrOpenBlob) // IE :(
window.navigator.msSaveOrOpenBlob(file,filename);
else
{
var a = document.createElement("a"), url = URL.createObjectURL(file);
a.href = url; a.download = filename;
document.body.appendChild(a);
a.click();
setTimeout(function()
{
document.body.removeChild(a);
window.URL.revokeObjectURL(url);
},0);
}
}
function httpGet(url) //! gets HTTP requests synchroniously. DEPRECATED and wont work in nodejs
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.open("GET",url,false);
xmlHttp.send(null);
return xmlHttp.responseText;
}
function httpGetAsync(url,callback,errcb=false) //! gets HTTP requests asynchronously
{
if(window.XMLHttpRequest)
{
var req = new XMLHttpRequest();
req.onreadystatechange = function()
{
if(req.readyState == 4)
if(req.status == 200)
callback(req.responseText);
else if(errcb)
{
req.onerror = null; errcb();
}
}
if(errcb)
{
req.onerror = errcb;
}
req.open("GET",url,true);
req.send(null);
}
else if(window.https && url.indexOf("https://") == 0)
{
var req = https.get(url,function(res)
{
res.data = "";
res.on('data',function(data)
{
res.data += data;
});
res.on('end',function()
{
if(res.statusCode == 200)
callback(res.data)
else if(errcb)
errcb();
});
});
if(errcb) req.on('error',errcb);
}
else if(window.http) //no https support
{
url=url.replace("https://","http://");
var req = http.get(url.replace("https://","http://"),function(res)
{
res.data = "";
res.on('data',function(data)
{
res.data += data;
});
res.on('end',function()
{
if(res.statusCode == 200)
callback(res.data)
else if(errcb)
errcb();
});
});
if(errcb) req.on('error',errcb);
}
else
{
throw "No methods to GET file";
}
}
function xmlify(string) //! Gets XML object from string.
{
var val;
if (window.DOMParser) { val = (new DOMParser).parseFromString(string, "text/xml"); }
else { val = new ActiveXObject("Microsoft.XMLDOM"); val.async = !1; val.loadXML(string); }
return val;
}
function getVarFromString(string) //! Find variable parameters from string, used in parsing menus
{
var splice = string.split(".");
var variable = settings, var2 = commands;
for(var y=0;y<splice.length-1;y++)
{
try{variable = variable[splice[y]]}catch(e){variable = undefined}
try{var2 = var2[splice[y]]}catch(e){var2 = undefined}
}
return [variable,splice[splice.length-1],var2];
}
function htmlEntities(str) //! Get HTML entities for some characters.
{
return (""+str).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/\>/g,"&gt;").replace(/"/g,"&quot;");
}
function colorIsDark(r,g,b)
{
return (
( r < 255*settings.FONT_MIN_R &&
g < 255*settings.FONT_MIN_G &&
b < 255*settings.FONT_MIN_B
)|| r+g+b < 255*settings.FONT_MIN_TOTAL
);
}
function getDarkBGFromHex(hex)
{
var c = new THREE.Color(hex);
if(colorIsDark(c.r,c.g,c.b))
return "white";
else
return "none";
}
function replaceColors(str)
{
if(typeof(str) == "undefined") return typeof(str);
var dark = "class=darktext";
//Capitals are allowed because the processes here can handle them
str = str.replace(settings.VERIFY_COLOR_STRICT?/0x([0-9A-Fa-f]{6}|RESETT)(.*?)(?=0x(?:[0-9A-Fa-f]{6}|RESETT)|$)/gm : /0x(.{6})(.*?)(?=0x(?:.{6})|$)/gm,
function(x)
{
if(x.substr(2,6) == "RESETT")
{
return x.substr(8);
}
else
{
//var darkI1="class=lighttext";
var darkI1="";
var r=parseInt(x[2]+x[3],16),g=parseInt(x[4]+x[5],16),b=parseInt(x[6]+x[7],16);
//NOTE: unless using regex, javascript only replaces the first occurance
if(isNaN(r)){if(isNaN(parseInt(x[2],16)))x=x.replace(x[2],"0");if(isNaN(parseInt(x[3],16)))x=x.replace(x[3],"0");r=parseInt(x[2]+x[3],16)}
if(isNaN(g)){if(isNaN(parseInt(x[4],16)))x=x.replace(x[4],"0");if(isNaN(parseInt(x[5],16)))x=x.replace(x[5],"0");g=parseInt(x[4]+x[5],16)}
if(isNaN(b)){if(isNaN(parseInt(x[6],16)))x=x.replace(x[6],"0");if(isNaN(parseInt(x[7],16)))x=x.replace(x[7],"0");b=parseInt(x[6]+x[7],16)}
if(colorIsDark(r,g,b))
{
if(settings.TEXT_DARK_HIGHLIGHT)
{
darkI1 = dark;
}
if(settings.TEXT_BRIGHTEN)
{
if(r < settings.FONT_MIN_R) r += settings.FONT_MIN_R;
if(g < settings.FONT_MIN_G) g += settings.FONT_MIN_G;
if(b < settings.FONT_MIN_B) b += settings.FONT_MIN_B;
if(colorIsDark(r,g,b))
{
r += settings.FONT_MIN_TOTAL/3;
g += settings.FONT_MIN_TOTAL/3;
b += settings.FONT_MIN_TOTAL/3;
}
}
}
return "<span "+darkI1+" style='color:rgb("+r+","+g+","+b+");'>"+x.substr(8)+"</span>";
}
});
return str;
}
function removeColors(str)
{
return str.replace(settings.VERIFY_COLOR_STRICT?/0x([0-9A-Fa-f]{6}|RESETT)(.*?)(?=0x(?:[0-9A-Fa-f]{6}|RESETT)|$)/gm : /0x(.{6})(.*?)(?=0x(?:.{6})|$)/gm,function(x){return x.substr(8)});
}
String.prototype.filter = function() //! Filter illegal player characters. Heavily based on ArmagetronAd's filtering.
{
var char, out="", str = this.toString();
for(var i=0;i<str.length;i++)
{
char = str.charCodeAt(i);
if(char <= 126 && char > 32) //Leave ASCII characters but convert them to lower case
{
if(char == 48)
out += "o"; //map 0 to o because z-man
else
out += str[i].toLowerCase();
}
//! map umlauts and similar to their base characters
else if(char >= 0xc0 && char <= 0xc5) out += 'a';
else if(char >= 0xd1 && char <= 0xd6) out += 'o';
else if(char >= 0xd9 && char <= 0xdD) out += 'u';
else if(char == 0xdf) out += 's';
else if(char >= 0xe0 && char <= 0xe5) out += 'a';
else if(char >= 0xe8 && char <= 0xeb) out += 'e';
else if(char >= 0xec && char <= 0xef) out += 'i';
else if(char >= 0xf0 && char <= 0xf6) out += 'o';
else if(char >= 0xf9 && char <= 0xfc) out += 'u';
else if(char >= 0xc0 && char <= 0xc5) out += 'a';
else switch(char)
{
//some of those are a bit questionable, but still better than lots of underscores
case 161: out += '!'; break;
case 162: out += 'c'; break;
case 163: out += 'l'; break;
case 165: out += 'y'; break;
case 166: out += '|'; break;
case 167: out += 's'; break;
case 168: out += '"'; break;
case 169: out += 'c'; break;
case 170: out += 'a'; break;
case 171: out += '"'; break;
case 172: out += '!'; break;
case 174: out += 'r'; break;
case 176: out += 'o'; break;
case 177: out += '+'; break;
case 178: out += '2'; break;
case 179: out += '3'; break;
case 182: out += 'p'; break;
case 183: out += '.'; break;
case 185: out += '1'; break;
case 187: out += '"'; break;
case 198: out += 'a'; break;
case 199: out += 'c'; break;
case 208: out += 'd'; break;
case 209: out += 'n'; break;
case 215: out += 'x'; break;
case 216: out += 'o'; break;
case 221: out += 'y'; break;
case 222: out += 'p'; break;
case 231: out += 'c'; break;
case 241: out += 'n'; break;
case 247: out += '/'; break;
case 248: out += 'o'; break;
case 253: out += 'y'; break;
case 254: out += 'p'; break;
case 255: out += 'y'; break;
default: out += "_"; break; //unknown character, mapped to underscore
}
}
return out;
}
function tStringify(str) //!
{
str = str.replace(/\$\w*/g,function(i){console.log(i.replace("\$",""));});
str = str.replace(new RegExp("@progtitle@",'g'),"3DCycles Web");
str = str.replace(new RegExp("@progtitleshort@",'g'),"3DCycles");
str = str.replace(new RegExp("@progname@",'g'),"webtron");
return str;
}
function pi(a=1) {return Math.PI*a} //! Finds multiples of PI.
function setNewFont(input) //! Gets font from user input. Not used anywhere anymore.
{
input = input.toLowerCase();
var output = "";
switch(input) {
case 'armagetronad':case 'armagetron':case 'arma':case 'tron':
output = "Armagetronad";
break;
case 'flynn':case 'flyn':case 'flyyn':case 'flin':case 'user':case 'legacy':
output = "Flynn";
break;
case 'serif':case 'srif':case 'serf':case 'srf':case 'font':
output = "serif";
break;
case 'sans-serif':case 'sansserif':case 'sans':case 'sanserif':case 'san':
output = "sans-serif";
break;
case 'nicefont':case 'nice':case 'nfont':
output = "nicefont";
break;
case 'monospace':case 'mono':case 'fixedwidth':case 'fixed':
output = "monospace";
break;
default:
output = "Armagetronad";
}
return output;
}
function pointDistance(x1,y1,x2,y2)
{
var xs = x2 - x1, ys = y2 - y1;
return Math.sqrt( xs*xs + ys*ys );
}
function getLogicalBox(string) //! Parses map file and returns [x, y, minx, miny, maxx, maxy] or false on failure.
{
var re = /(x|y)\=.-?(\d*.)?\d+/gi;
var matches = string.match(re);
var temp = 0;
var box = [0,0,Infinity,Infinity,-Infinity,-Infinity];// x, y, minx, miny, maxx, maxy
if (matches) {
for (var i = 0; i < matches.length; i++) {
matches[i] = matches[i].replace(/\"|\'/g, '');
//console.log(matches[i]);
if (matches[i].indexOf("x") > -1) { // x=250.25
matches[i] = matches[i].replace('x=', '');
temp = parseFloat(matches[i]);
if (temp > box[4]) { box[4] = temp; }
if (temp < box[2]) { box[2] = temp; }
}
if (matches[i].indexOf("y") > -1) { // y=-25
matches[i] = matches[i].replace('y=', '');
temp = parseFloat(matches[i]);
if (temp > box[5]) { box[5] = temp; }
if (temp < box[3]) { box[3] = temp; }
}
}
//get center
box[0] = ( box[2] + box[4] ) / 2;
box[1] = ( box[3] + box[5] ) / 2;
//console.log(box);
return box;
}
else {
return false;
}
}
function hasClass(element, cls) {//checks if element has classname, returns true | false
return (' ' + element.className + ' ').indexOf(' ' + cls + ' ') > -1;
}
function relPath(path,rel="/")
{
//if(rel.indexOf("/") != 0) rel = "/"+rel;
if(rel.indexOf("/",rel.length-1) == -1) rel += "/";
if(path.indexOf("://") >= 0 || path.indexOf("/") == 0) return path;
else return rel+path;
}
function inround() //! Tries to determine if we're in a round or not.
{
return !engine.roundCommencing && engine.gtime >= -4000;
}
function deg2rad(angle)
{
if(!isFinite(angle)) return angle;
angle %= 360;
if(angle < 0) angle += 360;
var radians = angle * Math.PI / 180;
return radians;
}
function rad2deg(radians)
{
if(!isFinite(radians)) return radians;
var angle = radians * 180 / Math.PI;
angle %= 360;
if(angle < 0) angle += 360;
return angle;
}
function normalizeRad(radians)
{
var pi2 = Math.PI*2;
radians = radians%pi2;
while(radians < 0) radians += pi2;
return radians;
}
// BEGIN based on code from http://geomalgorithms.com/a07-_distance.html
// Copyright 2001 softSurfer, 2012 Dan Sunday
// This code may be freely used, distributed and modified for any purpose
// providing that this copyright notice is included with it.
// SoftSurfer makes no warranty for this code, and cannot be held
// liable for any real or imagined damage resulting from its use.
// Users of this code must verify correctness for their application.
var dot = function(ux,uy,vx,vy) { return ((ux*vx)+(uy*vy)); };
var SMALL_NUM = 0.00000001; // anything that avoids division overflow
function distanceoflines(x1,y1, x2,y2, x3,y3, x4,y4)
{
var ux=x2-x1,uy=y2-y1;
var vx=x4-x3,vy=y4-y3
var wx=x1-x3,wy=y1-y3;
//var a = dot(ux,uy,ux,uy), b = dot(ux,uy,vx,vy), c = dot(vx,vy,vx,vy), d = dot(ux,uy,wx,wy), e = dot(vx,vy,wx,wy);
var a = (ux*ux)+(uy*uy), b = (ux*vx)+(uy*vy), c = (vx*vx)+(vy*vy), d = (ux*wx)+(uy*wy), e = (vx*wx)+(vy*wy); //probably faster
var D = a*c - b*b;
var sc,sN,sD = D;
var tc,tN,tD = D;
if(D < SMALL_NUM) //lines almost parallel
{
sN = 0; //force point p0 on segment s1
sD = 1; //prevent possible division by zero
tN = e; tD = c;
}
else //get closest points on the infinite lines
{
sN = (b*e - c*d); tN = (a*e - b*d);
if(sN < 0) //sc < 0 => the s=0 edge is visible
{
sN = 0; tN = e; tD = c;
}
else if(sN > sD) //sc > 1 => the s=1 edge is visible
{
sN = sD; tN = e + b; tD = c;
}
}
if(tN < 0) // tc < 0 => the t=0 edge is visible
{
tN = 0;
//recompute sc this edge
if(d>0)
{
sN = 0;
}
else if(d<a)
{
sN = sD;
}
else
{
sN = -d; sD = a;
}
}
else if(tN > tD) //tc > 1 => the t=1 edge is visible
{
tN = tD;
//recompute sc for this edge
if((b-d) < 0)
{
sN = 0;
}
else if((b-d) > a)
{
sN = sD;
}
else
{
sN = (b-d); sD = a;
}
}
//finally, do the division to get sc and tc;
var sc = (Math.abs(sN) < SMALL_NUM ? 0.0 : sN / sD);
var tc = (Math.abs(tN) < SMALL_NUM ? 0.0 : tN / tD);
var dPx = wx + (ux * sc) - (vx * tc);
var dPy = wy + (uy * sc) - (vy * tc);
//console.log(dPx,dPy);
//return Math.sqrt(dot(dPx,dPy,dPx,dPy));
return Math.hypot(dPx,dPy);
}
// END
function is_in_circle(p1x, p1y, r1, p2x, p2y, r2=0)
{
return(r1+r2 > Math.sqrt(Math.pow((p1x-p2x),2)+Math.pow((p1y-p2y),2)))
}
function lineIntersect(p0_x, p0_y, p1_x, p1_y, p2_x, p2_y, p3_x, p3_y)
{
var s1_x = p1_x - p0_x, s1_y = p1_y - p0_y, s2_x = p3_x - p2_x, s2_y = p3_y - p2_y;
var s = (-s1_y * (p0_x - p2_x) + s1_x * (p0_y - p2_y)) / (-s2_x * s1_y + s1_x * s2_y),
t = ( s2_x * (p0_y - p2_y) - s2_y * (p0_x - p2_x)) / (-s2_x * s1_y + s1_x * s2_y);
return (s >= 0 && s <= 1 && t >= 0 && t <= 1);
}
/////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////
//"encrytion" variables, not sure what they were for:
String.prototype.toEncodedString = function () {
var ostr = this.toString().replace(/\s+/g, '');
if (ostr.length < 8) {
alert("Password must be at least 8 characters long with no spaces.");
return null;
};
var x, nstr = '',
len = ostr.length;
for (x = 0; x < len; ++x) {
nstr += (255 - ostr.charCodeAt(x)).toString(36).toUpperCase().toPaddedString(2, '0');
};
return nstr;
};
String.prototype.fromEncodedString = function () {
var ostr = this.toString();
var x, nstr = '',
len = ostr.length;
for (x = 0; x < len; x += 2) {
nstr += String.fromCharCode(255 - parseInt(ostr.substr(x, 2), 36));
};
return nstr;
};
Number.prototype.toPaddedString = function (len, pad) {
len = (len) ? Number(len) : 2;
if (isNaN(len)) {
alert("Padded String 'length' argument is not numeric.");
return null;
};
var dflt = (isNaN(this.toString())) ? " " : "0";
pad = (pad) ? pad.toString().substr(0, 1) : dflt;
var str = this.toString();
if (dflt == "0") {
while (str.length < len) str = pad + str;
}
else {
while (str.length < len) str += pad;
};
return str;
};
String.prototype.toPaddedString = Number.prototype.toPaddedString;
/**/
var encrypt1 = new Date().getTime();
encrypt1 = ""+encrypt1;//##############...
//var encrypt2 = encrypt1.toEncodedString();
//var str3 = str2.fromEncodedString();
/**/
function getSuperString() {
var superstring = encrypt1.toEncodedString();
superstring = "lightcycle"+superstring;
return superstring;
}
var ss = getSuperString();

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