split utils

This commit is contained in:
Azgaar 2021-10-17 22:43:35 +03:00
parent 8c558e6b34
commit 120bf4a7eb
12 changed files with 858 additions and 834 deletions

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@ -4315,12 +4315,22 @@
</defs>
</svg>
<!-- <script src="libs/translate.js"></script> -->
<script src="libs/jquery-3.1.1.min.js"></script>
<script src="libs/d3.min.js"></script>
<script src="libs/priority-queue.min.js"></script>
<script src="libs/delaunator.min.js"></script>
<script src="modules/utils.js"></script>
<script src="utils/commonUtils.js"></script>
<script src="utils/arrayUtils.js"></script>
<script src="utils/colorUtils.js"></script>
<script src="utils/graphUtils.js"></script>
<script src="utils/nodeUtils.js"></script>
<script src="utils/numberUtils.js"></script>
<script src="utils/polyfills.js"></script>
<script src="utils/probabilityUtils.js"></script>
<script src="utils/stringUtils.js"></script>
<script src="utils/unitUtils.js"></script>
<script src="modules/voronoi.js"></script>
<script src="modules/heightmap-templates.js"></script>
<script src="modules/heightmap-generator.js"></script>

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// FMG helper functions
"use strict";
// add boundary points to pseudo-clip voronoi cells
function getBoundaryPoints(width, height, spacing) {
const offset = rn(-1 * spacing);
const bSpacing = spacing * 2;
const w = width - offset * 2;
const h = height - offset * 2;
const numberX = Math.ceil(w / bSpacing) - 1;
const numberY = Math.ceil(h / bSpacing) - 1;
let points = [];
for (let i = 0.5; i < numberX; i++) {
let x = Math.ceil((w * i) / numberX + offset);
points.push([x, offset], [x, h + offset]);
}
for (let i = 0.5; i < numberY; i++) {
let y = Math.ceil((h * i) / numberY + offset);
points.push([offset, y], [w + offset, y]);
}
return points;
}
// get points on a regular square grid and jitter them a bit
function getJitteredGrid(width, height, spacing) {
const radius = spacing / 2; // square radius
const jittering = radius * 0.9; // max deviation
const doubleJittering = jittering * 2;
const jitter = () => Math.random() * doubleJittering - jittering;
let points = [];
for (let y = radius; y < height; y += spacing) {
for (let x = radius; x < width; x += spacing) {
const xj = Math.min(rn(x + jitter(), 2), width);
const yj = Math.min(rn(y + jitter(), 2), height);
points.push([xj, yj]);
}
}
return points;
}
// return cell index on a regular square grid
function findGridCell(x, y) {
return Math.floor(Math.min(y / grid.spacing, grid.cellsY - 1)) * grid.cellsX + Math.floor(Math.min(x / grid.spacing, grid.cellsX - 1));
}
// return array of cell indexes in radius on a regular square grid
function findGridAll(x, y, radius) {
const c = grid.cells.c;
let r = Math.floor(radius / grid.spacing);
let found = [findGridCell(x, y)];
if (!r || radius === 1) return found;
if (r > 0) found = found.concat(c[found[0]]);
if (r > 1) {
let frontier = c[found[0]];
while (r > 1) {
let cycle = frontier.slice();
frontier = [];
cycle.forEach(function (s) {
c[s].forEach(function (e) {
if (found.indexOf(e) !== -1) return;
found.push(e);
frontier.push(e);
});
});
r--;
}
}
return found;
}
// return closest pack points quadtree datum
function find(x, y, radius = Infinity) {
return pack.cells.q.find(x, y, radius);
}
// return closest cell index
function findCell(x, y, radius = Infinity) {
const found = pack.cells.q.find(x, y, radius);
return found ? found[2] : undefined;
}
// return array of cell indexes in radius
function findAll(x, y, radius) {
const found = pack.cells.q.findAll(x, y, radius);
return found.map(r => r[2]);
}
// get polygon points for packed cells knowing cell id
function getPackPolygon(i) {
return pack.cells.v[i].map(v => pack.vertices.p[v]);
}
// get polygon points for initial cells knowing cell id
function getGridPolygon(i) {
return grid.cells.v[i].map(v => grid.vertices.p[v]);
}
// mbostock's poissonDiscSampler
function* poissonDiscSampler(x0, y0, x1, y1, r, k = 3) {
if (!(x1 >= x0) || !(y1 >= y0) || !(r > 0)) throw new Error();
const width = x1 - x0;
const height = y1 - y0;
const r2 = r * r;
const r2_3 = 3 * r2;
const cellSize = r * Math.SQRT1_2;
const gridWidth = Math.ceil(width / cellSize);
const gridHeight = Math.ceil(height / cellSize);
const grid = new Array(gridWidth * gridHeight);
const queue = [];
function far(x, y) {
const i = (x / cellSize) | 0;
const j = (y / cellSize) | 0;
const i0 = Math.max(i - 2, 0);
const j0 = Math.max(j - 2, 0);
const i1 = Math.min(i + 3, gridWidth);
const j1 = Math.min(j + 3, gridHeight);
for (let j = j0; j < j1; ++j) {
const o = j * gridWidth;
for (let i = i0; i < i1; ++i) {
const s = grid[o + i];
if (s) {
const dx = s[0] - x;
const dy = s[1] - y;
if (dx * dx + dy * dy < r2) return false;
}
}
}
return true;
}
function sample(x, y) {
queue.push((grid[gridWidth * ((y / cellSize) | 0) + ((x / cellSize) | 0)] = [x, y]));
return [x + x0, y + y0];
}
yield sample(width / 2, height / 2);
pick: while (queue.length) {
const i = (Math.random() * queue.length) | 0;
const parent = queue[i];
for (let j = 0; j < k; ++j) {
const a = 2 * Math.PI * Math.random();
const r = Math.sqrt(Math.random() * r2_3 + r2);
const x = parent[0] + r * Math.cos(a);
const y = parent[1] + r * Math.sin(a);
if (0 <= x && x < width && 0 <= y && y < height && far(x, y)) {
yield sample(x, y);
continue pick;
}
}
const r = queue.pop();
if (i < queue.length) queue[i] = r;
}
}
// filter land cells
function isLand(i) {
return pack.cells.h[i] >= 20;
}
// filter water cells
function isWater(i) {
return pack.cells.h[i] < 20;
}
// convert RGB color string to HEX without #
function toHEX(rgb) {
if (rgb.charAt(0) === "#") {
return rgb;
}
rgb = rgb.match(/^rgba?[\s+]?\([\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?/i);
return rgb && rgb.length === 4
? "#" +
("0" + parseInt(rgb[1], 10).toString(16)).slice(-2) +
("0" + parseInt(rgb[2], 10).toString(16)).slice(-2) +
("0" + parseInt(rgb[3], 10).toString(16)).slice(-2)
: "";
}
// return array of standard shuffled colors
function getColors(number) {
const c12 = ["#dababf", "#fb8072", "#80b1d3", "#fdb462", "#b3de69", "#fccde5", "#c6b9c1", "#bc80bd", "#ccebc5", "#ffed6f", "#8dd3c7", "#eb8de7"];
const cRB = d3.scaleSequential(d3.interpolateRainbow);
const colors = d3.shuffle(d3.range(number).map(i => (i < 12 ? c12[i] : d3.color(cRB((i - 12) / (number - 12))).hex())));
return colors;
}
function getRandomColor() {
return d3.color(d3.scaleSequential(d3.interpolateRainbow)(Math.random())).hex();
}
// mix a color with a random color
function getMixedColor(color, mix = 0.2, bright = 0.3) {
const c = color && color[0] === "#" ? color : getRandomColor(); // if provided color is not hex (e.g. harching), generate random one
return d3.color(d3.interpolate(c, getRandomColor())(mix)).brighter(bright).hex();
}
// conver temperature from °C to other scales
function convertTemperature(c) {
switch (temperatureScale.value) {
case "°C":
return c + "°C";
case "°F":
return rn((c * 9) / 5 + 32) + "°F";
case "K":
return rn(c + 273.15) + "K";
case "°R":
return rn(((c + 273.15) * 9) / 5) + "°R";
case "°De":
return rn(((100 - c) * 3) / 2) + "°De";
case "°N":
return rn((c * 33) / 100) + "°N";
case "°Ré":
return rn((c * 4) / 5) + "°Ré";
case "°Rø":
return rn((c * 21) / 40 + 7.5) + "°Rø";
default:
return c + "°C";
}
}
// random number in a range
function rand(min, max) {
if (min === undefined && max === undefined) return Math.random();
if (max === undefined) {
max = min;
min = 0;
}
return Math.floor(Math.random() * (max - min + 1)) + min;
}
// probability shorthand
function P(probability) {
if (probability >= 1) return true;
if (probability <= 0) return false;
return Math.random() < probability;
}
function each(n) {
return i => i % n === 0;
}
// random number (normal or gaussian distribution)
function gauss(expected = 100, deviation = 30, min = 0, max = 300, round = 0) {
return rn(minmax(d3.randomNormal(expected, deviation)(), min, max), round);
}
// probability shorthand for floats
function Pint(float) {
return ~~float + +P(float % 1);
}
// round value to d decimals
function rn(v, d = 0) {
const m = Math.pow(10, d);
return Math.round(v * m) / m;
}
// round string to d decimals
function round(s, d = 1) {
return s.replace(/[\d\.-][\d\.e-]*/g, function (n) {
return rn(n, d);
});
}
// corvent number to short string with SI postfix
function si(n) {
if (n >= 1e9) return rn(n / 1e9, 1) + "B";
if (n >= 1e8) return rn(n / 1e6) + "M";
if (n >= 1e6) return rn(n / 1e6, 1) + "M";
if (n >= 1e4) return rn(n / 1e3) + "K";
if (n >= 1e3) return rn(n / 1e3, 1) + "K";
return rn(n);
}
// getInteger number from user input data
function getInteger(value) {
const metric = value.slice(-1);
if (metric === "K") return parseInt(value.slice(0, -1) * 1e3);
if (metric === "M") return parseInt(value.slice(0, -1) * 1e6);
if (metric === "B") return parseInt(value.slice(0, -1) * 1e9);
return parseInt(value);
}
// remove parent element (usually if child is clicked)
function removeParent() {
this.parentNode.parentNode.removeChild(this.parentNode);
}
// return string with 1st char capitalized
function capitalize(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
// transform string to array [translateX,translateY,rotateDeg,rotateX,rotateY,scale]
function parseTransform(string) {
if (!string) {
return [0, 0, 0, 0, 0, 1];
}
const a = string
.replace(/[a-z()]/g, "")
.replace(/[ ]/g, ",")
.split(",");
return [a[0] || 0, a[1] || 0, a[2] || 0, a[3] || 0, a[4] || 0, a[5] || 1];
}
// findAll d3.quandtree search from https://bl.ocks.org/lwthatcher/b41479725e0ff2277c7ac90df2de2b5e
void (function addFindAll() {
const Quad = function (node, x0, y0, x1, y1) {
this.node = node;
this.x0 = x0;
this.y0 = y0;
this.x1 = x1;
this.y1 = y1;
};
const tree_filter = function (x, y, radius) {
var t = {x, y, x0: this._x0, y0: this._y0, x3: this._x1, y3: this._y1, quads: [], node: this._root};
if (t.node) {
t.quads.push(new Quad(t.node, t.x0, t.y0, t.x3, t.y3));
}
radiusSearchInit(t, radius);
var i = 0;
while ((t.q = t.quads.pop())) {
i++;
// Stop searching if this quadrant cant contain a closer node.
if (!(t.node = t.q.node) || (t.x1 = t.q.x0) > t.x3 || (t.y1 = t.q.y0) > t.y3 || (t.x2 = t.q.x1) < t.x0 || (t.y2 = t.q.y1) < t.y0) continue;
// Bisect the current quadrant.
if (t.node.length) {
t.node.explored = true;
var xm = (t.x1 + t.x2) / 2,
ym = (t.y1 + t.y2) / 2;
t.quads.push(
new Quad(t.node[3], xm, ym, t.x2, t.y2),
new Quad(t.node[2], t.x1, ym, xm, t.y2),
new Quad(t.node[1], xm, t.y1, t.x2, ym),
new Quad(t.node[0], t.x1, t.y1, xm, ym)
);
// Visit the closest quadrant first.
if ((t.i = ((y >= ym) << 1) | (x >= xm))) {
t.q = t.quads[t.quads.length - 1];
t.quads[t.quads.length - 1] = t.quads[t.quads.length - 1 - t.i];
t.quads[t.quads.length - 1 - t.i] = t.q;
}
}
// Visit this point. (Visiting coincident points isnt necessary!)
else {
var dx = x - +this._x.call(null, t.node.data),
dy = y - +this._y.call(null, t.node.data),
d2 = dx * dx + dy * dy;
radiusSearchVisit(t, d2);
}
}
return t.result;
};
d3.quadtree.prototype.findAll = tree_filter;
var radiusSearchInit = function (t, radius) {
t.result = [];
(t.x0 = t.x - radius), (t.y0 = t.y - radius);
(t.x3 = t.x + radius), (t.y3 = t.y + radius);
t.radius = radius * radius;
};
var radiusSearchVisit = function (t, d2) {
t.node.data.scanned = true;
if (d2 < t.radius) {
do {
t.result.push(t.node.data);
t.node.data.selected = true;
} while ((t.node = t.node.next));
}
};
})();
// get segment of any point on polyline
function getSegmentId(points, point, step = 10) {
if (points.length === 2) return 1;
const d2 = (p1, p2) => (p1[0] - p2[0]) ** 2 + (p1[1] - p2[1]) ** 2;
let minSegment = 1;
let minDist = Infinity;
for (let i = 0; i < points.length - 1; i++) {
const p1 = points[i];
const p2 = points[i + 1];
const length = Math.sqrt(d2(p1, p2));
const segments = Math.ceil(length / step);
const dx = (p2[0] - p1[0]) / segments;
const dy = (p2[1] - p1[1]) / segments;
for (let s = 0; s < segments; s++) {
const x = p1[0] + s * dx;
const y = p1[1] + s * dy;
const dist2 = d2(point, [x, y]);
if (dist2 >= minDist) continue;
minDist = dist2;
minSegment = i + 1;
}
}
return minSegment;
}
function minmax(value, min, max) {
return Math.min(Math.max(value, min), max);
}
// normalization function
function normalize(val, min, max) {
return minmax((val - min) / (max - min), 0, 1);
}
// return a random integer from min to max biased towards one end based on exponent distribution (the bigger ex the higher bias towards min)
// from https://gamedev.stackexchange.com/a/116875
function biased(min, max, ex) {
return Math.round(min + (max - min) * Math.pow(Math.random(), ex));
}
// return array of values common for both array a and array b
function common(a, b) {
const setB = new Set(b);
return [...new Set(a)].filter(a => setB.has(a));
}
// clip polygon by graph bbox
function clipPoly(points, secure = 0) {
return polygonclip(points, [0, 0, graphWidth, graphHeight], secure);
}
// check if char is vowel or can serve as vowel
function vowel(c) {
return `aeiouyɑ'əøɛœæɶɒɨɪɔɐʊɤɯаоиеёэыуюяàèìòùỳẁȁȅȉȍȕáéíóúýẃőűâêîôûŷŵäëïöüÿẅãẽĩõũỹąęįǫųāēīōūȳăĕĭŏŭǎěǐǒǔȧėȯẏẇạẹịọụỵẉḛḭṵṳ`.includes(c);
}
// remove vowels from the end of the string
function trimVowels(string) {
while (string.length > 3 && vowel(last(string))) {
string = string.slice(0, -1);
}
return string;
}
// get adjective form from noun
function getAdjective(string) {
// special cases for some suffixes
if (string.length > 8 && string.slice(-6) === "orszag") return string.slice(0, -6);
if (string.length > 6 && string.slice(-4) === "stan") return string.slice(0, -4);
if (P(0.5) && string.slice(-4) === "land") return string + "ic";
if (string.slice(-4) === " Guo") string = string.slice(0, -4);
// don't change is name ends on suffix
if (string.slice(-2) === "an") return string;
if (string.slice(-3) === "ese") return string;
if (string.slice(-1) === "i") return string;
const end = string.slice(-1); // last letter of string
if (end === "a") return (string += "n");
if (end === "o") return (string = trimVowels(string) + "an");
if (vowel(end) || end === "c") return (string += "an"); // ceiuy
if (end === "m" || end === "n") return (string += "ese");
if (end === "q") return (string += "i");
return trimVowels(string) + "ian";
}
// get ordinal out of integer: 1 => 1st
const nth = n => n + (["st", "nd", "rd"][((((n + 90) % 100) - 10) % 10) - 1] || "th");
// get two-letters code (abbreviation) from string
function abbreviate(name, restricted = []) {
const parsed = name.replace("Old ", "O ").replace(/[()]/g, ""); // remove Old prefix and parentheses
const words = parsed.split(" ");
const letters = words.join("");
let code = words.length === 2 ? words[0][0] + words[1][0] : letters.slice(0, 2);
for (let i = 1; i < letters.length - 1 && restricted.includes(code); i++) {
code = letters[0] + letters[i].toUpperCase();
}
return code;
}
// conjunct array: [A,B,C] => "A, B and C"
function list(array) {
if (!Intl.ListFormat) return array.join(", ");
const conjunction = new Intl.ListFormat(window.lang || "en", {style: "long", type: "conjunction"});
return conjunction.format(array);
}
// split string into 2 almost equal parts not breaking words
function splitInTwo(str) {
const half = str.length / 2;
const ar = str.split(" ");
if (ar.length < 2) return ar; // only one word
let first = "",
last = "",
middle = "",
rest = "";
ar.forEach((w, d) => {
if (d + 1 !== ar.length) w += " ";
rest += w;
if (!first || rest.length < half) first += w;
else if (!middle) middle = w;
else last += w;
});
if (!last) return [first, middle];
if (first.length < last.length) return [first + middle, last];
return [first, middle + last];
}
// return the last element of array
function last(array) {
return array[array.length - 1];
}
// return random value from the array
function ra(array) {
return array[Math.floor(Math.random() * array.length)];
}
// return random value from weighted array {"key1":weight1, "key2":weight2}
function rw(object) {
const array = [];
for (const key in object) {
for (let i = 0; i < object[key]; i++) {
array.push(key);
}
}
return array[Math.floor(Math.random() * array.length)];
}
// return value in range [0, 100] (height range)
function lim(v) {
return minmax(v, 0, 100);
}
// get number from string in format "1-3" or "2" or "0.5"
function getNumberInRange(r) {
if (typeof r !== "string") {
ERROR && console.error("The value should be a string", r);
return 0;
}
if (!isNaN(+r)) return ~~r + +P(r - ~~r);
const sign = r[0] === "-" ? -1 : 1;
if (isNaN(+r[0])) r = r.slice(1);
const range = r.includes("-") ? r.split("-") : null;
if (!range) {
ERROR && console.error("Cannot parse the number. Check the format", r);
return 0;
}
const count = rand(range[0] * sign, +range[1]);
if (isNaN(count) || count < 0) {
ERROR && console.error("Cannot parse number. Check the format", r);
return 0;
}
return count;
}
// return center point of common edge of 2 pack cells
function getMiddlePoint(cell1, cell2) {
const {cells, vertices} = pack;
const commonVertices = cells.v[cell1].filter(vertex => vertices.c[vertex].some(cell => cell === cell2));
const [x1, y1] = vertices.p[commonVertices[0]];
const [x2, y2] = vertices.p[commonVertices[1]];
const x = (x1 + x2) / 2;
const y = (y1 + y2) / 2;
return [x, y];
}
// helper function non-used for the generation
function drawCellsValue(data) {
debug.selectAll("text").remove();
debug
.selectAll("text")
.data(data)
.enter()
.append("text")
.attr("x", (d, i) => pack.cells.p[i][0])
.attr("y", (d, i) => pack.cells.p[i][1])
.text(d => d);
}
// helper function non-used for the generation
function drawPolygons(data) {
const max = d3.max(data),
min = d3.min(data),
scheme = getColorScheme();
data = data.map(d => 1 - normalize(d, min, max));
debug.selectAll("polygon").remove();
debug
.selectAll("polygon")
.data(data)
.enter()
.append("polygon")
.attr("points", (d, i) => getPackPolygon(i))
.attr("fill", d => scheme(d))
.attr("stroke", d => scheme(d));
}
// polyfill for composedPath
function getComposedPath(node) {
let parent;
if (node.parentNode) parent = node.parentNode;
else if (node.host) parent = node.host;
else if (node.defaultView) parent = node.defaultView;
if (parent !== undefined) return [node].concat(getComposedPath(parent));
return [node];
}
// polyfill for replaceAll
if (!String.prototype.replaceAll) {
String.prototype.replaceAll = function (str, newStr) {
if (Object.prototype.toString.call(str).toLowerCase() === "[object regexp]") return this.replace(str, newStr);
return this.replace(new RegExp(str, "g"), newStr);
};
}
// get next unused id
function getNextId(core, i = 1) {
while (document.getElementById(core + i)) i++;
return core + i;
}
function debounce(func, ms) {
let isCooldown = false;
return function () {
if (isCooldown) return;
func.apply(this, arguments);
isCooldown = true;
setTimeout(() => (isCooldown = false), ms);
};
}
function throttle(func, ms) {
let isThrottled = false;
let savedArgs;
let savedThis;
function wrapper() {
if (isThrottled) {
savedArgs = arguments;
savedThis = this;
return;
}
func.apply(this, arguments);
isThrottled = true;
setTimeout(function () {
isThrottled = false;
if (savedArgs) {
wrapper.apply(savedThis, savedArgs);
savedArgs = savedThis = null;
}
}, ms);
}
return wrapper;
}
// parse error to get the readable string in Chrome and Firefox
function parseError(error) {
const isFirefox = navigator.userAgent.toLowerCase().indexOf("firefox") > -1;
const errorString = isFirefox ? error.toString() + " " + error.stack : error.stack;
const regex = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gi;
const errorNoURL = errorString.replace(regex, url => "<i>" + last(url.split("/")) + "</i>");
const errorParsed = errorNoURL.replace(/at /gi, "<br>&nbsp;&nbsp;at ");
return errorParsed;
}
// polyfills
if (Array.prototype.flat === undefined) {
Array.prototype.flat = function () {
return this.reduce((acc, val) => (Array.isArray(val) ? acc.concat(val.flat()) : acc.concat(val)), []);
};
}
// check if string is a valid for JSON parse
JSON.isValid = str => {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
};
function getBase64(url, callback) {
const xhr = new XMLHttpRequest();
xhr.onload = function () {
const reader = new FileReader();
reader.onloadend = function () {
callback(reader.result);
};
reader.readAsDataURL(xhr.response);
};
xhr.open("GET", url);
xhr.responseType = "blob";
xhr.send();
}
function getAbsolutePath(href) {
if (!href) return "";
const link = document.createElement("a");
link.href = href;
return link.href;
}
// open URL in a new tab or window
function openURL(url) {
window.open(url, "_blank");
}
// open project wiki-page
function wiki(page) {
window.open("https://github.com/Azgaar/Fantasy-Map-Generator/wiki/" + page, "_blank");
}
// wrap URL into html a element
function link(URL, description) {
return `<a href="${URL}" rel="noopener" target="_blank">${description}</a>`;
}
function isCtrlClick(event) {
// meta key is cmd key on MacOs
return event.ctrlKey || event.metaKey;
}
function generateDate(from = 100, to = 1000) {
return new Date(rand(from, to), rand(12), rand(31)).toLocaleDateString("en", {year: "numeric", month: "long", day: "numeric"});
}
function getQGIScoordinates(x, y) {
const cx = mapCoordinates.lonW + (x / graphWidth) * mapCoordinates.lonT;
const cy = mapCoordinates.latN - (y / graphHeight) * mapCoordinates.latT; // this is inverted in QGIS otherwise
return [cx, cy];
}
// prompt replacer (prompt does not work in Electron)
void (function () {
const prompt = document.getElementById("prompt");
const form = prompt.querySelector("#promptForm");
window.prompt = function (promptText = "Please provide an input", options = {default: 1, step: 0.01, min: 0, max: 100}, callback) {
if (options.default === undefined) {
ERROR && console.error("Prompt: options object does not have default value defined");
return;
}
const input = prompt.querySelector("#promptInput");
prompt.querySelector("#promptText").innerHTML = promptText;
const type = typeof options.default === "number" ? "number" : "text";
input.type = type;
if (options.step !== undefined) input.step = options.step;
if (options.min !== undefined) input.min = options.min;
if (options.max !== undefined) input.max = options.max;
input.placeholder = "type a " + type;
input.value = options.default;
prompt.style.display = "block";
form.addEventListener(
"submit",
event => {
prompt.style.display = "none";
const v = type === "number" ? +input.value : input.value;
event.preventDefault();
if (callback) callback(v);
},
{once: true}
);
};
const cancel = prompt.querySelector("#promptCancel");
cancel.addEventListener("click", () => (prompt.style.display = "none"));
})();
// indexedDB; ldb object
!(function () {
function e(t, o) {
return n
? void (n.transaction("s").objectStore("s").get(t).onsuccess = function (e) {
var t = (e.target.result && e.target.result.v) || null;
o(t);
})
: void setTimeout(function () {
e(t, o);
}, 100);
}
var t = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
if (!t) return void ERROR && console.error("indexedDB not supported");
var n,
o = {k: "", v: ""},
r = t.open("d2", 1);
(r.onsuccess = function (e) {
n = this.result;
}),
(r.onerror = function (e) {
ERROR && console.error("indexedDB request error"), INFO && console.log(e);
}),
(r.onupgradeneeded = function (e) {
n = null;
var t = e.target.result.createObjectStore("s", {keyPath: "k"});
t.transaction.oncomplete = function (e) {
n = e.target.db;
};
}),
(window.ldb = {
get: e,
set: function (e, t) {
(o.k = e), (o.v = t), n.transaction("s", "readwrite").objectStore("s").put(o);
}
});
})();

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"use strict";
// FMG utils related to arrays
// return the last element of array
function last(array) {
return array[array.length - 1];
}
// return array of values common for both array a and array b
function common(a, b) {
const setB = new Set(b);
return [...new Set(a)].filter(a => setB.has(a));
}

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"use strict";
// FMG utils related to colors
// convert RGB color string to HEX without #
function toHEX(rgb) {
if (rgb.charAt(0) === "#") return rgb;
rgb = rgb.match(/^rgba?[\s+]?\([\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?,[\s+]?(\d+)[\s+]?/i);
return rgb && rgb.length === 4
? "#" +
("0" + parseInt(rgb[1], 10).toString(16)).slice(-2) +
("0" + parseInt(rgb[2], 10).toString(16)).slice(-2) +
("0" + parseInt(rgb[3], 10).toString(16)).slice(-2)
: "";
}
// return array of standard shuffled colors
function getColors(number) {
const c12 = ["#dababf", "#fb8072", "#80b1d3", "#fdb462", "#b3de69", "#fccde5", "#c6b9c1", "#bc80bd", "#ccebc5", "#ffed6f", "#8dd3c7", "#eb8de7"];
const cRB = d3.scaleSequential(d3.interpolateRainbow);
const colors = d3.shuffle(d3.range(number).map(i => (i < 12 ? c12[i] : d3.color(cRB((i - 12) / (number - 12))).hex())));
return colors;
}
function getRandomColor() {
return d3.color(d3.scaleSequential(d3.interpolateRainbow)(Math.random())).hex();
}
// mix a color with a random color
function getMixedColor(color, mix = 0.2, bright = 0.3) {
const c = color && color[0] === "#" ? color : getRandomColor(); // if provided color is not hex (e.g. harching), generate random one
return d3.color(d3.interpolate(c, getRandomColor())(mix)).brighter(bright).hex();
}

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"use strict";
// FMG helper functions
// clip polygon by graph bbox
function clipPoly(points, secure = 0) {
return polygonclip(points, [0, 0, graphWidth, graphHeight], secure);
}
// get segment of any point on polyline
function getSegmentId(points, point, step = 10) {
if (points.length === 2) return 1;
const d2 = (p1, p2) => (p1[0] - p2[0]) ** 2 + (p1[1] - p2[1]) ** 2;
let minSegment = 1;
let minDist = Infinity;
for (let i = 0; i < points.length - 1; i++) {
const p1 = points[i];
const p2 = points[i + 1];
const length = Math.sqrt(d2(p1, p2));
const segments = Math.ceil(length / step);
const dx = (p2[0] - p1[0]) / segments;
const dy = (p2[1] - p1[1]) / segments;
for (let s = 0; s < segments; s++) {
const x = p1[0] + s * dx;
const y = p1[1] + s * dy;
const dist2 = d2(point, [x, y]);
if (dist2 >= minDist) continue;
minDist = dist2;
minSegment = i + 1;
}
}
return minSegment;
}
// return center point of common edge of 2 pack cells
function getMiddlePoint(cell1, cell2) {
const {cells, vertices} = pack;
const commonVertices = cells.v[cell1].filter(vertex => vertices.c[vertex].some(cell => cell === cell2));
const [x1, y1] = vertices.p[commonVertices[0]];
const [x2, y2] = vertices.p[commonVertices[1]];
const x = (x1 + x2) / 2;
const y = (y1 + y2) / 2;
return [x, y];
}
function debounce(func, ms) {
let isCooldown = false;
return function () {
if (isCooldown) return;
func.apply(this, arguments);
isCooldown = true;
setTimeout(() => (isCooldown = false), ms);
};
}
function throttle(func, ms) {
let isThrottled = false;
let savedArgs;
let savedThis;
function wrapper() {
if (isThrottled) {
savedArgs = arguments;
savedThis = this;
return;
}
func.apply(this, arguments);
isThrottled = true;
setTimeout(function () {
isThrottled = false;
if (savedArgs) {
wrapper.apply(savedThis, savedArgs);
savedArgs = savedThis = null;
}
}, ms);
}
return wrapper;
}
// parse error to get the readable string in Chrome and Firefox
function parseError(error) {
const isFirefox = navigator.userAgent.toLowerCase().indexOf("firefox") > -1;
const errorString = isFirefox ? error.toString() + " " + error.stack : error.stack;
const regex = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gi;
const errorNoURL = errorString.replace(regex, url => "<i>" + last(url.split("/")) + "</i>");
const errorParsed = errorNoURL.replace(/at /gi, "<br>&nbsp;&nbsp;at ");
return errorParsed;
}
function getBase64(url, callback) {
const xhr = new XMLHttpRequest();
xhr.onload = function () {
const reader = new FileReader();
reader.onloadend = function () {
callback(reader.result);
};
reader.readAsDataURL(xhr.response);
};
xhr.open("GET", url);
xhr.responseType = "blob";
xhr.send();
}
// open URL in a new tab or window
function openURL(url) {
window.open(url, "_blank");
}
// open project wiki-page
function wiki(page) {
window.open("https://github.com/Azgaar/Fantasy-Map-Generator/wiki/" + page, "_blank");
}
// wrap URL into html a element
function link(URL, description) {
return `<a href="${URL}" rel="noopener" target="_blank">${description}</a>`;
}
function isCtrlClick(event) {
// meta key is cmd key on MacOs
return event.ctrlKey || event.metaKey;
}
function generateDate(from = 100, to = 1000) {
return new Date(rand(from, to), rand(12), rand(31)).toLocaleDateString("en", {year: "numeric", month: "long", day: "numeric"});
}
function getQGIScoordinates(x, y) {
const cx = mapCoordinates.lonW + (x / graphWidth) * mapCoordinates.lonT;
const cy = mapCoordinates.latN - (y / graphHeight) * mapCoordinates.latT; // this is inverted in QGIS otherwise
return [cx, cy];
}
// prompt replacer (prompt does not work in Electron)
void (function () {
const prompt = document.getElementById("prompt");
const form = prompt.querySelector("#promptForm");
window.prompt = function (promptText = "Please provide an input", options = {default: 1, step: 0.01, min: 0, max: 100}, callback) {
if (options.default === undefined) {
ERROR && console.error("Prompt: options object does not have default value defined");
return;
}
const input = prompt.querySelector("#promptInput");
prompt.querySelector("#promptText").innerHTML = promptText;
const type = typeof options.default === "number" ? "number" : "text";
input.type = type;
if (options.step !== undefined) input.step = options.step;
if (options.min !== undefined) input.min = options.min;
if (options.max !== undefined) input.max = options.max;
input.placeholder = "type a " + type;
input.value = options.default;
prompt.style.display = "block";
form.addEventListener(
"submit",
event => {
prompt.style.display = "none";
const v = type === "number" ? +input.value : input.value;
event.preventDefault();
if (callback) callback(v);
},
{once: true}
);
};
const cancel = prompt.querySelector("#promptCancel");
cancel.addEventListener("click", () => (prompt.style.display = "none"));
})();
// indexedDB; ldb object
void (function () {
function e(t, o) {
return n
? void (n.transaction("s").objectStore("s").get(t).onsuccess = function (e) {
var t = (e.target.result && e.target.result.v) || null;
o(t);
})
: void setTimeout(function () {
e(t, o);
}, 100);
}
var t = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
if (!t) return void ERROR && console.error("indexedDB not supported");
var n,
o = {k: "", v: ""},
r = t.open("d2", 1);
(r.onsuccess = function (e) {
n = this.result;
}),
(r.onerror = function (e) {
ERROR && console.error("indexedDB request error"), INFO && console.log(e);
}),
(r.onupgradeneeded = function (e) {
n = null;
var t = e.target.result.createObjectStore("s", {keyPath: "k"});
t.transaction.oncomplete = function (e) {
n = e.target.db;
};
}),
(window.ldb = {
get: e,
set: function (e, t) {
(o.k = e), (o.v = t), n.transaction("s", "readwrite").objectStore("s").put(o);
}
});
})();

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"use strict";
// FMG utils related to graph
// add boundary points to pseudo-clip voronoi cells
function getBoundaryPoints(width, height, spacing) {
const offset = rn(-1 * spacing);
const bSpacing = spacing * 2;
const w = width - offset * 2;
const h = height - offset * 2;
const numberX = Math.ceil(w / bSpacing) - 1;
const numberY = Math.ceil(h / bSpacing) - 1;
let points = [];
for (let i = 0.5; i < numberX; i++) {
let x = Math.ceil((w * i) / numberX + offset);
points.push([x, offset], [x, h + offset]);
}
for (let i = 0.5; i < numberY; i++) {
let y = Math.ceil((h * i) / numberY + offset);
points.push([offset, y], [w + offset, y]);
}
return points;
}
// get points on a regular square grid and jitter them a bit
function getJitteredGrid(width, height, spacing) {
const radius = spacing / 2; // square radius
const jittering = radius * 0.9; // max deviation
const doubleJittering = jittering * 2;
const jitter = () => Math.random() * doubleJittering - jittering;
let points = [];
for (let y = radius; y < height; y += spacing) {
for (let x = radius; x < width; x += spacing) {
const xj = Math.min(rn(x + jitter(), 2), width);
const yj = Math.min(rn(y + jitter(), 2), height);
points.push([xj, yj]);
}
}
return points;
}
// return cell index on a regular square grid
function findGridCell(x, y) {
return Math.floor(Math.min(y / grid.spacing, grid.cellsY - 1)) * grid.cellsX + Math.floor(Math.min(x / grid.spacing, grid.cellsX - 1));
}
// return array of cell indexes in radius on a regular square grid
function findGridAll(x, y, radius) {
const c = grid.cells.c;
let r = Math.floor(radius / grid.spacing);
let found = [findGridCell(x, y)];
if (!r || radius === 1) return found;
if (r > 0) found = found.concat(c[found[0]]);
if (r > 1) {
let frontier = c[found[0]];
while (r > 1) {
let cycle = frontier.slice();
frontier = [];
cycle.forEach(function (s) {
c[s].forEach(function (e) {
if (found.indexOf(e) !== -1) return;
found.push(e);
frontier.push(e);
});
});
r--;
}
}
return found;
}
// return closest pack points quadtree datum
function find(x, y, radius = Infinity) {
return pack.cells.q.find(x, y, radius);
}
// return closest cell index
function findCell(x, y, radius = Infinity) {
const found = pack.cells.q.find(x, y, radius);
return found ? found[2] : undefined;
}
// return array of cell indexes in radius
function findAll(x, y, radius) {
const found = pack.cells.q.findAll(x, y, radius);
return found.map(r => r[2]);
}
// get polygon points for packed cells knowing cell id
function getPackPolygon(i) {
return pack.cells.v[i].map(v => pack.vertices.p[v]);
}
// get polygon points for initial cells knowing cell id
function getGridPolygon(i) {
return grid.cells.v[i].map(v => grid.vertices.p[v]);
}
// mbostock's poissonDiscSampler
function* poissonDiscSampler(x0, y0, x1, y1, r, k = 3) {
if (!(x1 >= x0) || !(y1 >= y0) || !(r > 0)) throw new Error();
const width = x1 - x0;
const height = y1 - y0;
const r2 = r * r;
const r2_3 = 3 * r2;
const cellSize = r * Math.SQRT1_2;
const gridWidth = Math.ceil(width / cellSize);
const gridHeight = Math.ceil(height / cellSize);
const grid = new Array(gridWidth * gridHeight);
const queue = [];
function far(x, y) {
const i = (x / cellSize) | 0;
const j = (y / cellSize) | 0;
const i0 = Math.max(i - 2, 0);
const j0 = Math.max(j - 2, 0);
const i1 = Math.min(i + 3, gridWidth);
const j1 = Math.min(j + 3, gridHeight);
for (let j = j0; j < j1; ++j) {
const o = j * gridWidth;
for (let i = i0; i < i1; ++i) {
const s = grid[o + i];
if (s) {
const dx = s[0] - x;
const dy = s[1] - y;
if (dx * dx + dy * dy < r2) return false;
}
}
}
return true;
}
function sample(x, y) {
queue.push((grid[gridWidth * ((y / cellSize) | 0) + ((x / cellSize) | 0)] = [x, y]));
return [x + x0, y + y0];
}
yield sample(width / 2, height / 2);
pick: while (queue.length) {
const i = (Math.random() * queue.length) | 0;
const parent = queue[i];
for (let j = 0; j < k; ++j) {
const a = 2 * Math.PI * Math.random();
const r = Math.sqrt(Math.random() * r2_3 + r2);
const x = parent[0] + r * Math.cos(a);
const y = parent[1] + r * Math.sin(a);
if (0 <= x && x < width && 0 <= y && y < height && far(x, y)) {
yield sample(x, y);
continue pick;
}
}
const r = queue.pop();
if (i < queue.length) queue[i] = r;
}
}
// filter land cells
function isLand(i) {
return pack.cells.h[i] >= 20;
}
// filter water cells
function isWater(i) {
return pack.cells.h[i] < 20;
}
// findAll d3.quandtree search from https://bl.ocks.org/lwthatcher/b41479725e0ff2277c7ac90df2de2b5e
void (function addFindAll() {
const Quad = function (node, x0, y0, x1, y1) {
this.node = node;
this.x0 = x0;
this.y0 = y0;
this.x1 = x1;
this.y1 = y1;
};
const tree_filter = function (x, y, radius) {
var t = {x, y, x0: this._x0, y0: this._y0, x3: this._x1, y3: this._y1, quads: [], node: this._root};
if (t.node) {
t.quads.push(new Quad(t.node, t.x0, t.y0, t.x3, t.y3));
}
radiusSearchInit(t, radius);
var i = 0;
while ((t.q = t.quads.pop())) {
i++;
// Stop searching if this quadrant cant contain a closer node.
if (!(t.node = t.q.node) || (t.x1 = t.q.x0) > t.x3 || (t.y1 = t.q.y0) > t.y3 || (t.x2 = t.q.x1) < t.x0 || (t.y2 = t.q.y1) < t.y0) continue;
// Bisect the current quadrant.
if (t.node.length) {
t.node.explored = true;
var xm = (t.x1 + t.x2) / 2,
ym = (t.y1 + t.y2) / 2;
t.quads.push(
new Quad(t.node[3], xm, ym, t.x2, t.y2),
new Quad(t.node[2], t.x1, ym, xm, t.y2),
new Quad(t.node[1], xm, t.y1, t.x2, ym),
new Quad(t.node[0], t.x1, t.y1, xm, ym)
);
// Visit the closest quadrant first.
if ((t.i = ((y >= ym) << 1) | (x >= xm))) {
t.q = t.quads[t.quads.length - 1];
t.quads[t.quads.length - 1] = t.quads[t.quads.length - 1 - t.i];
t.quads[t.quads.length - 1 - t.i] = t.q;
}
}
// Visit this point. (Visiting coincident points isnt necessary!)
else {
var dx = x - +this._x.call(null, t.node.data),
dy = y - +this._y.call(null, t.node.data),
d2 = dx * dx + dy * dy;
radiusSearchVisit(t, d2);
}
}
return t.result;
};
d3.quadtree.prototype.findAll = tree_filter;
var radiusSearchInit = function (t, radius) {
t.result = [];
(t.x0 = t.x - radius), (t.y0 = t.y - radius);
(t.x3 = t.x + radius), (t.y3 = t.y + radius);
t.radius = radius * radius;
};
var radiusSearchVisit = function (t, d2) {
t.node.data.scanned = true;
if (d2 < t.radius) {
do {
t.result.push(t.node.data);
t.node.data.selected = true;
} while ((t.node = t.node.next));
}
};
})();
// helper function non-used for the generation
function drawCellsValue(data) {
debug.selectAll("text").remove();
debug
.selectAll("text")
.data(data)
.enter()
.append("text")
.attr("x", (d, i) => pack.cells.p[i][0])
.attr("y", (d, i) => pack.cells.p[i][1])
.text(d => d);
}
// helper function non-used for the generation
function drawPolygons(data) {
const max = d3.max(data),
min = d3.min(data),
scheme = getColorScheme();
data = data.map(d => 1 - normalize(d, min, max));
debug.selectAll("polygon").remove();
debug
.selectAll("polygon")
.data(data)
.enter()
.append("polygon")
.attr("points", (d, i) => getPackPolygon(i))
.attr("fill", d => scheme(d))
.attr("stroke", d => scheme(d));
}

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"use strict";
// FMG utils related to nodes
// remove parent element (usually if child is clicked)
function removeParent() {
this.parentNode.parentNode.removeChild(this.parentNode);
}
// polyfill for composedPath
function getComposedPath(node) {
let parent;
if (node.parentNode) parent = node.parentNode;
else if (node.host) parent = node.host;
else if (node.defaultView) parent = node.defaultView;
if (parent !== undefined) return [node].concat(getComposedPath(parent));
return [node];
}
// get next unused id
function getNextId(core, i = 1) {
while (document.getElementById(core + i)) i++;
return core + i;
}
function getAbsolutePath(href) {
if (!href) return "";
const link = document.createElement("a");
link.href = href;
return link.href;
}

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"use strict";
// FMG utils related to numbers
// round value to d decimals
function rn(v, d = 0) {
const m = Math.pow(10, d);
return Math.round(v * m) / m;
}
function minmax(value, min, max) {
return Math.min(Math.max(value, min), max);
}
// return value in range [0, 100]
function lim(v) {
return minmax(v, 0, 100);
}
// normalization function
function normalize(val, min, max) {
return minmax((val - min) / (max - min), 0, 1);
}

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"use strict";
// replaceAll
if (String.prototype.replaceAll === undefined) {
String.prototype.replaceAll = function (str, newStr) {
if (Object.prototype.toString.call(str).toLowerCase() === "[object regexp]") return this.replace(str, newStr);
return this.replace(new RegExp(str, "g"), newStr);
};
}
// flat
if (Array.prototype.flat === undefined) {
Array.prototype.flat = function () {
return this.reduce((acc, val) => (Array.isArray(val) ? acc.concat(val.flat()) : acc.concat(val)), []);
};
}

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"use strict";
// FMG utils related to randomness
// random number in a range
function rand(min, max) {
if (min === undefined && max === undefined) return Math.random();
if (max === undefined) {
max = min;
min = 0;
}
return Math.floor(Math.random() * (max - min + 1)) + min;
}
// probability shorthand
function P(probability) {
if (probability >= 1) return true;
if (probability <= 0) return false;
return Math.random() < probability;
}
function each(n) {
return i => i % n === 0;
}
// random number (normal or gaussian distribution)
function gauss(expected = 100, deviation = 30, min = 0, max = 300, round = 0) {
return rn(minmax(d3.randomNormal(expected, deviation)(), min, max), round);
}
// probability shorthand for floats
function Pint(float) {
return ~~float + +P(float % 1);
}
// return random value from the array
function ra(array) {
return array[Math.floor(Math.random() * array.length)];
}
// return random value from weighted array {"key1":weight1, "key2":weight2}
function rw(object) {
const array = [];
for (const key in object) {
for (let i = 0; i < object[key]; i++) {
array.push(key);
}
}
return array[Math.floor(Math.random() * array.length)];
}
// return a random integer from min to max biased towards one end based on exponent distribution (the bigger ex the higher bias towards min)
function biased(min, max, ex) {
return Math.round(min + (max - min) * Math.pow(Math.random(), ex));
}
// get number from string in format "1-3" or "2" or "0.5"
function getNumberInRange(r) {
if (typeof r !== "string") {
ERROR && console.error("The value should be a string", r);
return 0;
}
if (!isNaN(+r)) return ~~r + +P(r - ~~r);
const sign = r[0] === "-" ? -1 : 1;
if (isNaN(+r[0])) r = r.slice(1);
const range = r.includes("-") ? r.split("-") : null;
if (!range) {
ERROR && console.error("Cannot parse the number. Check the format", r);
return 0;
}
const count = rand(range[0] * sign, +range[1]);
if (isNaN(count) || count < 0) {
ERROR && console.error("Cannot parse number. Check the format", r);
return 0;
}
return count;
}

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"use strict";
// FMG utils related to strings
// round numbers in string to d decimals
function round(s, d = 1) {
return s.replace(/[\d\.-][\d\.e-]*/g, function (n) {
return rn(n, d);
});
}
// return string with 1st char capitalized
function capitalize(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
// check if char is vowel or can serve as vowel
function vowel(c) {
return `aeiouyɑ'əøɛœæɶɒɨɪɔɐʊɤɯаоиеёэыуюяàèìòùỳẁȁȅȉȍȕáéíóúýẃőűâêîôûŷŵäëïöüÿẅãẽĩõũỹąęįǫųāēīōūȳăĕĭŏŭǎěǐǒǔȧėȯẏẇạẹịọụỵẉḛḭṵṳ`.includes(c);
}
// remove vowels from the end of the string
function trimVowels(string) {
while (string.length > 3 && vowel(last(string))) {
string = string.slice(0, -1);
}
return string;
}
// get adjective form from noun
function getAdjective(string) {
// special cases for some suffixes
if (string.length > 8 && string.slice(-6) === "orszag") return string.slice(0, -6);
if (string.length > 6 && string.slice(-4) === "stan") return string.slice(0, -4);
if (P(0.5) && string.slice(-4) === "land") return string + "ic";
if (string.slice(-4) === " Guo") string = string.slice(0, -4);
// don't change is name ends on suffix
if (string.slice(-2) === "an") return string;
if (string.slice(-3) === "ese") return string;
if (string.slice(-1) === "i") return string;
const end = string.slice(-1); // last letter of string
if (end === "a") return (string += "n");
if (end === "o") return (string = trimVowels(string) + "an");
if (vowel(end) || end === "c") return (string += "an"); // ceiuy
if (end === "m" || end === "n") return (string += "ese");
if (end === "q") return (string += "i");
return trimVowels(string) + "ian";
}
// get ordinal out of integer: 1 => 1st
const nth = n => n + (["st", "nd", "rd"][((((n + 90) % 100) - 10) % 10) - 1] || "th");
// get two-letters code (abbreviation) from string
function abbreviate(name, restricted = []) {
const parsed = name.replace("Old ", "O ").replace(/[()]/g, ""); // remove Old prefix and parentheses
const words = parsed.split(" ");
const letters = words.join("");
let code = words.length === 2 ? words[0][0] + words[1][0] : letters.slice(0, 2);
for (let i = 1; i < letters.length - 1 && restricted.includes(code); i++) {
code = letters[0] + letters[i].toUpperCase();
}
return code;
}
// conjunct array: [A,B,C] => "A, B and C"
function list(array) {
if (!Intl.ListFormat) return array.join(", ");
const conjunction = new Intl.ListFormat(window.lang || "en", {style: "long", type: "conjunction"});
return conjunction.format(array);
}
// split string into 2 almost equal parts not breaking words
function splitInTwo(str) {
const half = str.length / 2;
const ar = str.split(" ");
if (ar.length < 2) return ar; // only one word
let first = "",
last = "",
middle = "",
rest = "";
ar.forEach((w, d) => {
if (d + 1 !== ar.length) w += " ";
rest += w;
if (!first || rest.length < half) first += w;
else if (!middle) middle = w;
else last += w;
});
if (!last) return [first, middle];
if (first.length < last.length) return [first + middle, last];
return [first, middle + last];
}
// transform string to array [translateX,translateY,rotateDeg,rotateX,rotateY,scale]
function parseTransform(string) {
if (!string) return [0, 0, 0, 0, 0, 1];
const a = string
.replace(/[a-z()]/g, "")
.replace(/[ ]/g, ",")
.split(",");
return [a[0] || 0, a[1] || 0, a[2] || 0, a[3] || 0, a[4] || 0, a[5] || 1];
}
// check if string is a valid for JSON parse
JSON.isValid = str => {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
};

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"use strict";
// FMG utils related to units
// conver temperature from °C to other scales
function convertTemperature(temp) {
switch (temperatureScale.value) {
case "°C":
return temp + "°C";
case "°F":
return rn((temp * 9) / 5 + 32) + "°F";
case "K":
return rn(temp + 273.15) + "K";
case "°R":
return rn(((temp + 273.15) * 9) / 5) + "°R";
case "°De":
return rn(((100 - temp) * 3) / 2) + "°De";
case "°N":
return rn((temp * 33) / 100) + "°N";
case "°Ré":
return rn((temp * 4) / 5) + "°Ré";
case "°Rø":
return rn((temp * 21) / 40 + 7.5) + "°Rø";
default:
return temp + "°C";
}
}
// corvent number to short string with SI postfix
function si(n) {
if (n >= 1e9) return rn(n / 1e9, 1) + "B";
if (n >= 1e8) return rn(n / 1e6) + "M";
if (n >= 1e6) return rn(n / 1e6, 1) + "M";
if (n >= 1e4) return rn(n / 1e3) + "K";
if (n >= 1e3) return rn(n / 1e3, 1) + "K";
return rn(n);
}
// getInteger number from user input data
function getInteger(value) {
const metric = value.slice(-1);
if (metric === "K") return parseInt(value.slice(0, -1) * 1e3);
if (metric === "M") return parseInt(value.slice(0, -1) * 1e6);
if (metric === "B") return parseInt(value.slice(0, -1) * 1e9);
return parseInt(value);
}