bitburner-src/utils/HelperFunctions.js

35 lines
1.1 KiB
JavaScript

//General helper functions
//Returns the size (number of keys) of an object
function sizeOfObject(obj) {
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) size++;
}
return size;
}
//Adds a random offset to a number within a certain percentage
//e.g. addOffset(100, 5) will return anything from 95 to 105.
//The percentage argument must be between 0 and 100;
function addOffset(n, percentage) {
if (percentage < 0 || percentage > 100) {return;}
var offset = n * (percentage / 100);
return n + ((Math.random() * (2 * offset)) - offset);
}
//Given an element by its Id(usually an 'a' element), removes all event listeners
//from that element by cloning and replacing. Then returns the new cloned element
function clearEventListeners(elemId) {
var elem = document.getElementById(elemId);
if (elem == null) {console.log("ERR: Could not find element for: " + elemId); return null;}
var newElem = elem.cloneNode(true);
elem.parentNode.replaceChild(newElem, elem);
return newElem;
}
function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}