fdamned26 FDTD range jQuery script

function getZones() {
 var $ = window.jQuery,
 j = "_",
 p = "#zone" + j,
 q = p.substr(1),
 css = "ul > li[id^=" + q + "]";
 return $(css);
}


function getZoneXY(zones0, i0) {
 var zones = zones0 || getZones(),
 i = +i0 || 0,
 f = zones[i > 0 ? i : 0],
 id = (f && f.id) || '',
 xy = id.substr(5).split(/_/g),
 x = +xy[0] || 0,
 y = +xy[1] || 0,
 r = [x, y];
 return r;
}


function pyth(x, y, isAP) {
 x = Math.abs(+x || 0);
 y = Math.abs(+y || 0);
 return +Math.round(isAP ? (x + y) : Math.sqrt(x * x + y * y));
}

function drawRange(zones0, dist, color, isAP) {
 var zones = zones0 || getZones() || [],
 nbZones = (zones && zones.length) || 0,
 $ = window.jQuery,
 i = 0,
 x = 0,
 y = 0,
 xy, o,
 blc = "border-left-color",
 brc = "border-right-color",
 bbc = "border-bottom-color",
 btc = "border-top-color";

 if (dist > 0 && color) {
 for (i = 0; i < nbZones; ++i) {
 xy = getZoneXY(zones, i);
 if (xy) {
 x = xy[0];
 y = xy[1];

 if (pyth(x, y, isAP) === dist) {
 o = zones.eq(i);
 if (x < 0 && pyth(x - 1, y, isAP) !== dist) {
 o.css(blc, color);
 } else if (x > 0 && pyth(x + 1, y) !== dist) {
 o.css(brc, color);
 } else if (isAP) {
 if (x === 0) {
 o.css(blc, color);
 o.css(brc, color);
 } else if (x === (dist - 1)) {
 o.css(brc, color);
 }
 }

 if (y < 0 && pyth(x, y - 1, isAP) !== dist) {
 o.css(bbc, color);
 } else if (y > 0 && pyth(x, y + 1) !== dist) {
 o.css(btc, color);
 } else if (isAP) {
 if (y === 0) {
 o.css(bbc, color);
 o.css(btc, color);
 } else if (y === (dist - 1)) {
 o.css(btc, color);
 }
 }
 }
 }
 }
 }
}

function drawRangeHR(zones0) {
 drawRange(zones0, 11, "yellow");
}

function drawRangeWT4(zones0) {
 drawRange(zones0, 1, "gray");
}

function drawRangeWT5(zones0) {
 drawRange(zones0, 2, "yellow");
}

function drawRangeDistant(zones0) {
 drawRange(zones0, 5, "cyan");
}

function drawRangeEE(zones0) {
 drawRange(zones0, 17, "white");
}

function drawRange9AP(zones0) {
 drawRange(zones0, 9, "yellow", true);
}

function drawRange11AP(zones0) {
 drawRange(zones0, 11, "pink", true);
}

var zones0 = getZones();
drawRangeHR(zones0);
drawRangeEE(zones0);
drawRangeWT4(zones0);
drawRangeWT5(zones0);
drawRange9AP(zones0);
drawRange11AP(zones0);
drawRangeDistant(zones0);