User:TheTrueShaman/common.js

/** FireworkEffects * Script for displaying fireworks on New Year. */

/** Attribution: Script Referenced: * DHTML Snowstorm! JavaScript-based snow for web pages by Scott Schiller * Copyright (c) 2007, Scott Schiller. All rights reserved. * Code provided under the BSD License * https://github.com/scottschiller/Snowstorm/blob/master/license.txt */

/*jslint nomen: true, plusplus: true, sloppy: true, vars: true, white: true */ /*global window, document, navigator, clearInterval, setInterval */

var scriptLoaded = !!(window.fireworkShow && window.fireworkShow.Loaded);

window.fireworkShow = window.fireworkShow || {}; window.fireworkShow.Loaded = true;

mw.loader.using(["mediawiki.util", "mediawiki.Uri"], function {	if ((mw.config.get("wgAction") !== "view") || scriptLoaded) return;

console.log("[FireworkEffects] Script Loading.");

window.fireworkShow = (new function { // jshint ignore:line		var defaults = {			autoStart: false, // Whether the firework should start automatically or not.			excludeMobile: true, // The sparks are likely to be bad news for mobile phones' CPUs (and batteries.) Enable at your own risk.			max_fireworks: 5,			max_sparks: 50, // Limit amount of firework sparks firing at once (less = lower CPU use)			animationInterval: 35, // Theoretical "milliseconds per frame" measurement. 20 = fast + smooth, but high 			// CPU use. 50 = more conservative, but slower			flakeBottom: null, // Integer for Y axis limit, 0 or null for "full-screen" effect			targetElement: null, // element which sparks will be appended to (null = document.body) - can be an element 			// ID eg. "myDiv", or a DOM node reference			useFadeEffect: true, // When recycling fallen sparks (or rarely, when falling), have it "melt" and fade out // if browser supports it usePositionFixed: true, // true = sparks does not shift vertically when scrolling. May increase CPU load, // disabled by default - if enabled, used only where supported usePixelPosition: false, // Whether to use pixel values for sparks top/left vs. percentages. Auto-enabled if // body is position:relative or targetElement is specified.

// Specific Variables For Firework Custom Script celebrateOnNewYear: true, // If enabled, even if autoStart is turned off, celebrateOnSpecificDates: [], // Sets custom dates in the format of, for example, "31 December". On those days, the firework show will start automatically even if this.autoStart is turned off fireworksHideToBackground: true, // If enabled, this.zIndex will be set to -1 after the timeout fireworksHideTimeout: 10000, // Sets the timeout after which the firework will hide in the background

// --- less-used bits --- freezeOnBlur: true, // Only show sparks when the window is in focus (foreground.) Saves CPU. flakeLeftOffset: 0, // Left margin/gutter space on edge of container (eg. browser window.) Bump up these values if seeing horizontal scrollbars. flakeRightOffset: 0, // Right margin/gutter space on edge of container zIndex: 2, // CSS stacking order applied to each firework flake };

var config = Object.assign(defaults, window.fireworkShow || {});

Object.assign(this, config);

// --- "No user-serviceable parts inside" past this point, yadda yadda --- var show = this, features, // UA sniffing and backCompat rendering mode checks for fixed position, etc.			isIE = navigator.userAgent.match(/msie/i), isIE6 = navigator.userAgent.match(/msie 6/i), isMobile = navigator.userAgent.match(/mobile|opera m(ob|in)/i), isBackCompatIE = (isIE && document.compatMode === "BackCompat"), noFixed = (isBackCompatIE || isIE6), scrollY = null, docHeight = null, fixedForEverything = false, targetElementIsRelative = false, opacitySupported = (function {				try {					document.createElement("div").style.opacity = "0.5";				} catch (e) {					return false;				}				return true;			}), didInit = false, canvas = document.createElement("canvas"); canvas.style.position = "fixed"; canvas.height = window.innerHeight; canvas.width = window.innerWidth; canvas.style.zIndex = show.zIndex; canvas.style.top = "0px"; canvas.style.left = "0px"; canvas.style.pointerEvents = "none"; context = canvas.getContext('2d'); rocket = new Image; rocketsrc = "https://static.wikia.nocookie.net/hypixel-skyblock/images/2/25/Firework_Rocket.png/revision/latest/scale-to-width-down/80?cb=20210615224504"; rocket.src = rocketsrc; document.body.appendChild(canvas);

features = (function {			var getAnimationFrame;

/**			 * hat tip: paul irish * https://www.paulirish.com/2011/requestanimationframe-for-smart-animating/ * https://gist.github.com/838785 */			function timeoutShim(callback) { window.setTimeout(callback, 1000 / (show.animationInterval || 20)); }

var _animationFrame = (window.requestAnimationFrame ||				window.webkitRequestAnimationFrame ||				window.mozRequestAnimationFrame ||				window.oRequestAnimationFrame ||				window.msRequestAnimationFrame ||				timeoutShim);

// apply to window, avoid "illegal invocation" errors in Chrome getAnimationFrame = _animationFrame ? function { return _animationFrame.apply(window, arguments); } : null; return getAnimationFrame; });

this.fireworks = []; this.active = false;

this.resetFirework = function(firework) { firework.x = Math.floor(Math.random * canvas.width); firework.y = canvas.height; firework.age = 0; firework.phase = 'fly'; };

for (var i = 0; i < show.max_fireworks; i++) { var firework = { sparks: [] };			for (var n = 0; n < show.max_sparks; n++) { var spark = { vx: Math.random * 5 + 0.5, vy: Math.random * 5 + 0.5, weight: Math.random * 0.3 + 0.03, red: Math.floor(Math.random * 2), green: Math.floor(Math.random * 2), blue: Math.floor(Math.random * 2) };   			if (Math.random > 0.5) spark.vx = -spark.vx; if (Math.random > 0.5) spark.vy = -spark.vy; firework.sparks.push(spark); }			show.fireworks.push(firework); show.resetFirework(firework); }

this.explode = function { context.clearRect(0, 0, canvas.width, canvas.height); explode_height = Math.round(canvas.height/4); for (var a = 0; a < show.fireworks.length; a++) { firework = show.fireworks[a]; if (firework.phase == 'explode') { for (var c = 0; c < firework.sparks.length; c++) { var spark = firework.sparks[c]; for (var d = 0; d < 10; d++) { var trailAge = firework.age + d;       					var x = firework.x + spark.vx * trailAge; var y = firework.y + spark.vy * trailAge + spark.weight * trailAge * spark.weight * trailAge; var fade = d * 40 - firework.age * 2; var r = Math.floor(spark.red * fade); var g = Math.floor(spark.green * fade); var b = Math.floor(spark.blue * fade); context.beginPath; context.fillStyle = 'rgba(' + r + ',' + g + ',' + b + ',1)'; context.rect(x, y, 4, 4); context.fill; }       			}    				firework.age++; if (firework.age > 100 && Math.random < 0.05) { show.resetFirework(firework); }				} else { firework.y = firework.y - 30; context.drawImage(rocket,firework.x,firework.y); if (Math.random < 0.01 || firework.y < explode_height) { firework.phase = 'explode'; }   			}			}			if (show.active && show.timer) { features(show.explode); }		};		this.events = (function {			var old = !window.addEventListener && window.attachEvent,				slice = Array.prototype.slice,				evt = {					add: old ? "attachEvent" : "addEventListener",					remove: old ? "detachEvent" : "removeEventListener",				};

function getArgs(oArgs) { var args = slice.call(oArgs), len = args.length; if (old) { args[1] = "on" + args[1]; // prefix if (len > 3) { args.pop; // no capture }				} else if (len === 3) { args.push(false); }				return args; }

function apply(args, sType) { var element = args.shift, method = [evt[sType]]; if (old) { element[method](args[0], args[1]); } else { element[method].apply(element, args); }			}

function addEvent { apply(getArgs(arguments), "add"); }

function removeEvent { apply(getArgs(arguments), "remove"); }

return { add: addEvent, remove: removeEvent };		});

this.resizeHandler = function { canvas.height = window.innerHeight; canvas.width = window.innerWidth; };

this.resizeHandlerAlt = function { canvas.height = show.targetElement.style.height; canvas.width = show.targetElement.style.width; };

this.freeze = function { show.active = false; };

this.resume = function { show.active = true; show.explode; };		this.stop = function { this.freeze; context.clearRect(0, 0, canvas.width, canvas.height); };

this.timerInit = function { show.timer = true; };

this.init = function { var i;			show.events.add(window, "resize", show.resizeHandler); if (show.freezeOnBlur) { if (isIE) { show.events.add(document, "focusout", show.freeze); show.events.add(document, "focusin", show.resume); } else { show.events.add(window, "blur", show.freeze); show.events.add(window, "focus", show.resume); }			}			show.resizeHandler; show.animationInterval = Math.max(20, show.animationInterval); show.timerInit; };

this.start = function (bFromOnLoad) { if (show.fireworksHideToBackground) { setTimeout(function {					console.log("[FireworkEffects] Show opening is over. The firework show will continue in background.");					canvas.style.zIndex= -1;				}, show.fireworksHideTimeout); }			if (!didInit) { didInit = true; } else if (bFromOnLoad) { // already loaded and running return true; }			if (typeof show.targetElement === "string") { var targetID = show.targetElement; show.targetElement = document.getElementById(targetID); if (!show.targetElement) { throw new Error("Fireworkshow: Unable to get targetElement \"" + targetID + "\""); }			}			if (!show.targetElement) { show.targetElement = (document.body || document.documentElement); }			if (show.targetElement !== document.documentElement && show.targetElement !== document.body) { // re-map handler to get element instead of screen dimensions show.resizeHandler = show.resizeHandlerAlt; //and force-enable pixel positioning show.usePixelPosition = true; }			show.resizeHandler; // get bounding box elements show.usePositionFixed = (show.usePositionFixed && !noFixed && !show.flakeBottom); // whether or not position:fixed is to be used if (window.getComputedStyle) { // attempt to determine if body or user-specified flake parent element is relatlively-positioned. try { targetElementIsRelative = (window.getComputedStyle(show.targetElement, null).getPropertyValue("position") === "relative"); } catch (e) { // oh well targetElementIsRelative = false; }			}			fixedForEverything = show.usePositionFixed; document.body.style.backgroundColor = "#000"; var styleElem = document.head.appendChild(document.createElement("style")); styleElem.innerHTML = ".fandom-community-header__background:before {background-image: -webkit-gradient(linear,left top,left bottom,color-stop(25%,rgba(var(--theme-body-background-color--rgb),0)),to(var(--theme-body-background-color))) !important; background-image: linear-gradient(to bottom,rgba(0,0,0,0) 25%,rgb(0,0,0)) !important;}"; //fix the webkit one, it doesn't match the normal one. show.init; show.active = true; show.explode; };

function doDelayedStart { window.setTimeout(function {				show.start(true);			}, 20); // event cleanup show.events.remove(isIE ? document : window, "mousemove", doDelayedStart); }

function doStart { if ((!show.excludeMobile || !isMobile)) { doDelayedStart; }			// event cleanup show.events.remove(window, "load", doStart); }

function during(date0, date1) { return date0.getFullYear == date1.getFullYear && date0.getMonth == date1.getMonth && date0.getDate == date1.getDate; }

function duringAny(date0, dates) { return dates.some(function (d) {				return during(date0, d);			}); }

function celebrateDates(year) { var cny_lookup = { 2021: "12 Feb 2021", 2022: "1 Feb 2022", 2023: "22 Jan 2023", 2024: "10 Feb 2024", 2025: "29 Jan 2025", 2026: "17 Feb 2026", 2027: "6 Feb 2027", 2028: "26 Jan 2028", 2029: "13 Feb 2029", 2030: "3 Feb 2030", 2031: "23 Jan 2031", 2032: "11 Feb 2032", };			return show.celebrateOnSpecificDates.map(function (d) {				return new Date(d + " " + year);			}).concat(show.celebrateOnNewYear && [				new Date("1 January " + year), // new year (Gregorian calendar)				new Date(cny_lookup[year]), // new year (Chinese calendar)			] || []); }

function waitTillCelebrate { var date = new Date, thisyear = celebrateDates(date.getFullYear), nextyear = celebrateDates(date.getFullYear + 1);

var promise = $.Deferred; if (show.autoStart || duringAny(date, thisyear)) { console.log("[FireworkEffects] Starting celebration!"); promise.resolve(true); } else if (!thisyear.length) { promise.resolve(false); } else { var till = Math.min.apply(this, thisyear.map(function (v, i) { return ((date < v) && v || nextyear[i]) - date; }));				if (till < 86400000) { // Celebration in less than 1 day setTimeout(function {						console.log("[FireworkEffects] Starting celebration!");						promise.resolve(true);					}, till); } else promise.resolve(false); console.log("[FireworkEffects] " + till + "ms till celebration."); }			return promise; }

// hooks for starting the firework show waitTillCelebrate.then(function (toCelebrate) {			if (toCelebrate) {				if (document.readyState === "complete")					doStart;				else					show.events.add(window, "load", doStart, false);			}		}); }); });