victor - npm Package Compare versions

Comparing version 0.1.2 to 0.1.4

bower.json

@@ -8,3 +8,3 @@ {
   },
-  "version": "0.1.2",
+  "version": "0.1.4",
   "homepage": "https://github.com/maxkueng/victor",
@@ -11,0 +11,0 @@ "authors": [

index.js

@@ -23,3 +23,27 @@ exports = module.exports = Victor;
 	}
+
+	/**
+	 * The X axis
+	 *
+	 * ### Examples:
+	 *     var vec = new Victor.fromArray(42, 21);
+	 *
+	 *     vec.x;
+	 *     // => 42
+	 *
+	 * @api public
+	 */
 	this.x = x || 0;
+
+	/**
+	 * The Y axis
+	 *
+	 * ### Examples:
+	 *     var vec = new Victor.fromArray(42, 21);
+	 *
+	 *     vec.y;
+	 *     // => 21
+	 *
+	 * @api public
+	 */
 	this.y = y || 0;
@@ -29,32 +53,2 @@ };
 /**
- * # Properties
- */
-
-/**
- * The X axis
- *
- * ### Examples:
- *     var vec = new Victor.fromArray(42, 21);
- *
- *     vec.x;
- *     // => 42
- *
- * @api public
- */
-Victor.prototype.x = 0;
-
-/**
- * The Y axis
- *
- * ### Examples:
- *     var vec = new Victor.fromArray(42, 21);
- *
- *     vec.y;
- *     // => 21
- *
- * @api public
- */
-Victor.prototype.y = 0;
-
-/**
  * # Static
@@ -116,3 +110,6 @@ */
 Victor.mix = function (vecA, vecB, amount) {
-	amount = amount || 0.5
+	if (typeof amount === 'undefined') {
+		amount = 0.5;
+	}
+
 	var x = (1 - amount) * vecA.x + amount * vecB.x;
@@ -436,7 +433,9 @@ var y = (1 - amount) * vecA.y + amount * vecB.y;
 Victor.prototype.normalize = function () {
-	if (this.length() === 0) {
+	var length = this.length();
+
+	if (length === 0) {
 		this.x = 1;
 		this.y = 0;
 	} else {
-		this.divide(this.length());
+		this.divide(length);
 	}
@@ -595,3 +594,6 @@ return this;
 Victor.prototype.mixX = function (vec, amount) {
-	amount = amount || 0.5;
+	if (typeof amount === 'undefined') {
+		amount = 0.5;
+	}
+
 	this.x = (1 - amount) * this.x + amount * vec.x;
@@ -618,3 +620,6 @@ return this;
 Victor.prototype.mixY = function (vec, amount) {
-	amount = amount || 0.5;
+	if (typeof amount === 'undefined') {
+		amount = 0.5;
+	}
+
 	this.y = (1 - amount) * this.y + amount * vec.y;
@@ -641,3 +646,2 @@ return this;
 Victor.prototype.mix = function (vec, amount) {
-	amount = amount || 0.5;
 	this.mixX(vec, amount);
@@ -876,6 +880,24 @@ this.mixY(vec, amount);
 Victor.prototype.distance = function (vec) {
+	return Math.sqrt(this.distanceSq(vec));
+};
+
+/**
+ * Calculates the squared euclidean distance between this vector and another
+ *
+ * ### Examples:
+ *     var vec1 = new Victor(100, 50);
+ *     var vec2 = new Victor(200, 60);
+ *
+ *     vec1.distanceSq(vec2);
+ *     // => 10100
+ *
+ * @param {Victor} vector The second vector
+ * @return {Number} Distance
+ * @api public
+ */
+Victor.prototype.distanceSq = function (vec) {
 	var dx = this.distanceX(vec),
 		dy = this.distanceY(vec);
 
-	return Math.sqrt(dx * dx + dy * dy);
+	return dx * dx + dy * dy;
 };
@@ -896,5 +918,21 @@
 Victor.prototype.length = function () {
-	return Math.sqrt(this.x * this.x + this.y * this.y);
+	return Math.sqrt(this.lengthSq());
 };
 
+/**
+ * Squared length / magnitude
+ *
+ * ### Examples:
+ *     var vec = new Victor(100, 50);
+ *
+ *     vec.lengthSq();
+ *     // => 12500
+ *
+ * @return {Number} Length / Magnitude
+ * @api public
+ */
+Victor.prototype.lengthSq = function () {
+	return this.x * this.x + this.y * this.y;
+};
+
 Victor.prototype.magnitude = Victor.prototype.length;
@@ -901,0 +939,0 @@

package.json

 {
   "name": "victor",
-  "version": "0.1.2",
+  "version": "0.1.4",
   "description": "A JavaScript 2D vector class with methods for common vector operations",
@@ -19,2 +19,3 @@ "keywords": [
   },
+  "homepage": "http://victorjs.org/",
   "author": "Max Kueng <[e-mail]> (http://maxkueng.com/)",
@@ -21,0 +22,0 @@ "contributors": [

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No dependency changes