was.js – Rev 30
?pathlinks?
/*! was.js - v1.0.0 - 2017-12-13
* http://grimore.org
* Copyright (c) 2017 Wizardry and Steamworks <office@grimore.org>; Licensed GPL-3.0 */
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasProduct(a, b) {
var m = Math.max(a.length, b.length);
var o = {};
for(var i = 0; i < m; ++i) {
o[a[i]] = b[i];
}
return o;
}
if (!Array.prototype.product) {
Array.prototype.product = function(b) {
return wasProduct(this, b);
};
}
// jQuery
if(typeof jQuery === 'function') {
$.extend({
product: wasProduct
});
}
/*************************************************************************/
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasStride(a, s) {
return a.filter(function(e, i) {
return i % s === 0;
});
}
if (!Array.prototype.stride) {
Array.prototype.stride = function(s) {
return wasStride(this, s);
};
}
// jQuery
if(typeof jQuery === 'function') {
$.extend({
stride: wasStride
});
}
/*************************************************************************/
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
// Vanilla JavaScript
function wasChunk(a, n) {
if (!a.length) {
return [];
}
return [a.slice(0, n)]
.concat(a.slice(n).wasChunk(n));
}
if (!Array.prototype.chunk) {
Array.prototype.chunk = function(a, n) {
return wasChunk(this, n);
};
}
// jQuery
if(typeof jQuery === 'function') {
$.extend({
chunk: wasChunk
});
}
/*************************************************************************/
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
/*stackoverflow.com/questions/7837456/how-to-compare-arrays-in-javascript*/
/*************************************************************************/
// Vanilla JavaScript
function wasEquals(a, b) {
// if the other array is a falsy value, return
if (!b) {
return false;
}
// compare lengths - can save a lot of time
if (a.length !== b.length) {
return false;
}
for (var i = 0, l = a.length; i < l; i++) {
// Check if we have nested arrays
if (a[i] instanceof Array && b[i] instanceof Array) {
// recurse into the nested arrays
if (!a[i].equals(b[i])) {
return false;
}
} else if (a[i] !== b[i]) {
// Warning - two different object instances will never be equal: {x:20} != {x:20}
return false;
}
}
return true;
}
if (!Array.prototype.equals) {
// attach the .equals method to Array's prototype to call it on any array
Array.prototype.equals = function(a, b) {
return wasEquals(this, b);
};
}
// jQuery
if(typeof jQuery === 'function') {
$.extend({
equals: wasEquals
});
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.collections = {
product: wasProduct,
stride: wasStride,
chunk: wasChunk,
equals: wasEquals
};
/* Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasCSVToArray(csv) {
var l = [];
var s = [];
var m = "";
do {
var a = csv.charAt(0);
csv = csv.slice(1, csv.length);
if(a === ",") {
if(s[s.length-1] !== '"') {
l.push(m);
m = "";
continue;
}
m += a;
continue;
}
if(a === '"' && csv.charAt(0) === a) {
m += a;
csv = csv.slice(1, csv.length);
continue;
}
if(a === '"') {
if(s[s.length-1] !== a) {
s.push(a);
continue;
}
s.pop();
continue;
}
m += a;
} while(csv !== "");
l.push(m);
return l;
}
/*************************************************************************/
/* Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasArrayToCSV(a) {
var csv = [];
for(var i=0; i<a.length; ++i) {
var cell = a[i].toString().replace('"', '""');
if(/"\s,\r\n/.test(cell)) {
csv[i] = '"' + cell + '"';
continue;
}
csv[i] = cell;
}
return csv.join();
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.formats = {
CSVToArray: wasCSVToArray,
ArrayToCSV: wasArrayToCSV
};
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasKeyValueToObject(a) {
var o = {};
a.reduce(function(a, c, i) {
i = Math.floor(i / 2);
if (!a[i]) {
a[i] = [];
}
a[i].push(c);
return a;
}, []).forEach(function(c, i, a) {
o[c[0]] = c[1];
}, o);
return o;
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.formats = {
KeyValueToObject: wasKeyValueToObject
};
/* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
/* fuss/lambda_calculus/functional_programming/aggregators @ grimore.org */
/*************************************************************************/
// Vanilla ES6 JavaScript
function wasSwitch(q, d, ...c) {
if(c.length % 2 !== 0) {
throw "Pairs of predicates expected for cases";
}
(Array.isArray(q) ? q : [ q ]).forEach((s) => {
var m = false;
for(var i = 0; i < c.length; i += 2) {
if(!c[i](s)) {
continue;
}
if(!c[i + 1](s)) {
continue;
}
m = true;
}
if(!m) {
d(s);
}
});
}
if (!Array.prototype.switch) {
Array.prototype.switch = function(d, ...c) {
wasSwitch(this, d, ...c);
};
}
// jQuery
if(typeof jQuery === 'function') {
$.extend({
switch: wasSwitch
});
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.lambda = {
switch: wasSwitch
};
/* Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasMapValueToRange(value, xMin, xMax, yMin, yMax) {
return yMin + (
( yMax - yMin ) * ( value - xMin ) / ( xMax - xMin )
);
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.mathematics = {
MapValueToRange: wasMapValueToRange
};
/* Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasHexToRGB(hex) {
var shortRegEx = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
hex = hex.replace(
shortRegEx,
function(m, r, g, b) {
return r + r + g + g + b + b;
}
);
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result ? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16)
} : null;
}
/*************************************************************************/
/* Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 */
/*************************************************************************/
function wasRGBToHex(r, g, b) {
return "#" + (
(1 << 24) +
(r << 16) +
(g << 8) +
b
).toString(16).slice(1);
}
/*************************************************************************/
/* Node.JS package export. */
/*************************************************************************/
module.exports.physics = {
HexToRGB: wasHexToRGB,
RGBToHex: wasRGBToHex
};
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