valmormn · February 21, 2018 14:20 · Oct 4, 2016 · Oct 4, 2016 · Oct 4, 2016 · Oct 4, 2016
diff --git a/Vector.js b/Vector.js
@@ -79,6 +79,23 @@ Vector.prototype.setLength = Vector.prototype.setMagnitude;
 Vector.prototype.getAngle = Vector.prototype.getDirection;
 Vector.prototype.setAngle = Vector.prototype.setDirection;
 
+// Utilities
+Vector.prototype.copy = function() {
+  return new Vector(this.x, this.y);
+};
+
+Vector.prototype.toString = function() {
+  return 'x: ' + this.x + ', y: ' + this.y;
+};
+
+Vector.prototype.toArray = function() {
+  return [this.x, this.y];
+};
+
+Vector.prototype.toObject = function() {
+  return {x: this.x, y: this.y};
+};
+
 // To add
 // Scale
 // Normalise

diff --git a/Vector.js b/Vector.js
@@ -1,5 +1,5 @@
 var Vector = function(x, y) {
-	this.x = x || 0;
+  this.x = x || 0;
   this.y = y || 0;
 };
 
@@ -45,9 +45,41 @@ Vector.prototype.subtract = function(v2) {
 };
 
 // subtract a vector from this one
-Vector.prototype.subtracFrom = function(v2) {
+Vector.prototype.subtractFrom = function(v2) {
 	this.x -= v2.x;
   this.y -= v2.y;
 };
 
-//
+// multiply this vector by a scalar and return a new one
+Vector.prototype.multiply = function(scalar) {
+  return new Vector(this.x * scalar, this.y * scalar);
+};
+
+// multiply this vector by the scalar
+Vector.prototype.multiplyBy = function(scalar) {
+  this.x *= scalar;
+  this.y *= scalar;
+};
+
+// scale this vector by scalar and return a new vector
+Vector.prototype.divide = function(scalar) {
+  return new Vector(this.x / scalar, this.y / scalar);
+};
+
+// scale this vector by scalar
+Vector.prototype.divideBy = function(scalar) {
+  this.x /= scalar;
+  this.y /= scalar;
+};
+
+// Aliases
+Vector.prototype.getLength = Vector.prototype.getMagnitude;
+Vector.prototype.setLength = Vector.prototype.setMagnitude;
+
+Vector.prototype.getAngle = Vector.prototype.getDirection;
+Vector.prototype.setAngle = Vector.prototype.setDirection;
+
+// To add
+// Scale
+// Normalise
+// Dot?
diff --git a/Vector.js b/Vector.js
@@ -0,0 +1,53 @@
+var Vector = function(x, y) {
+	this.x = x || 0;
+  this.y = y || 0;
+};
+
+// return the angle of the vector in radians
+Vector.prototype.getDirection = function() {
+	return Math.atan2(this.y, this.x);
+};
+
+// set the direction of the vector in radians
+Vector.prototype.setDirection = function(direction) {
+	var magnitude = this.getMagnitude();
+  this.x = Math.cos(angle) * magnitude;
+  this.y = Math.sin(angle) * magnitude;
+};
+
+// get the magnitude of the vector
+Vector.prototype.getMagnitude = function() {
+	// use pythagoras theorem to work out the magnitude of the vector
+	return Math.sqrt(this.x * this.x + this.y * this.y);
+};
+
+// set the magnitude of the vector
+Vector.prototype.setMagnitude = function(magnitude) {
+	var direction = this.getDirection(); 
+	this.x = Math.cos(direction) * magnitude;
+	this.y = Math.sin(direction) * magnitude;
+};
+
+// add two vectors together and return a new one
+Vector.prototype.add = function(v2) {
+	return new Vector(this.x + v2.x, this.y + v2.y);
+};
+
+// add a vector to this one
+Vector.prototype.addTo = function(v2) {
+	this.x += v2.x;
+  this.y += v2.y;
+};
+
+// subtract two vectors and reutn a new one
+Vector.prototype.subtract = function(v2) {
+	return new Vector(this.x - v2.x, this.y - v2.y);
+};
+
+// subtract a vector from this one
+Vector.prototype.subtracFrom = function(v2) {
+	this.x -= v2.x;
+  this.y -= v2.y;
+};
+
+//