comment

js/gravity.js

@@ -1,22 +1,32 @@
+/** 
+ * 
+ * 
+ * */
 var Gravity = (function(){
 
+	// @var {Boolean}
 	var haserror = false;
-
+	// @var {Boolean}
 	var boolcollision = false;
-
+	// @var {Boolean}
 	var boolaccretion = false;
 
 	/** 
 	 * @param {Object}
 	 * @param {Object}
+	 * @returns {Void}
 	 * */
 	var calc = function(a,b) {
-
+
+		// get the object variables
 		a = a.get();
 		b = b.get();
-
+
+		// create a new vector object
 		b.v = new Vector(b.x,b.y);
 
+		// user error check
+
 		if(undefined === a.x) {
 			console.log("ERROR:: Object[a] requires a.x coordinate to be initialized");
 			haserror = true;
@@ -46,6 +56,7 @@ var Gravity = (function(){
 		let v = new Vector(0,0);
 		let av = new Vector(0,0);
 		let bv = new Vector(0,0);
+
 		b.v.x -= a.x;
 		b.v.y -= a.y;
 

js/protohacks.js

@@ -1,9 +1,21 @@
+// Some hacks to attach DOM Node class functions
+
+/** 
+ * if this node has a specified class
+ * @param {String}
+ * @returns {Boolean}
+ * */
 HTMLElement.prototype.hasClass = function(c) {
     if (this.classList) {
         return this.classList.contains(c);
     }
     return !!this.className.match(new RegExp('(\\s|^)' + c + '(\\s|$)'));
 }
+/** 
+ * add a class to a node if it does not yet exist
+ * @param {String}
+ * @returns {Void}
+ * */
 HTMLElement.prototype.addClass = function(c) {
     if (this.classList) {
         this.classList.add(c);
@@ -13,6 +25,11 @@ HTMLElement.prototype.addClass = function(c) {
         }
     }
 }
+/** 
+ * removes a class from the list in a node
+ * @param {String}
+ * @returns {Void}
+ * */
 HTMLElement.prototype.removeClass = function(c) {
     if (this.classList) {
         this.classList.remove(c);

js/script.js

@@ -25,7 +25,9 @@ var canvas, ctx,  _objects = [], isrunnning = true, W, H;
 
 
 window.onload = function(){ 
+	// build a canvas
 	buildCanvas(function(){
+		// set the values based on init
 		document.getElementById("SOLARSIZE").value = SOLARSIZE;
 		document.getElementById("SOLARMASS").value = SOLARMASS;
 		document.getElementById("PLANETMASS").value = PLANETMASS;
@@ -40,6 +42,7 @@ window.onload = function(){
 		document.getElementById("BOOLCOLLISION").checked = BOOLCOLLISION;
 		document.getElementById("BOOLACCRETION").checked = BOOLACCRETION;
 
+		// run everything
 		run(); 
 	});
 }