Cylindrical.js: Convert to es6 class

src/math/Cylindrical.js

@@ -2,19 +2,19 @@
  * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
  */
 
-function Cylindrical( radius, theta, y ) {
+class Cylindrical {
 
-	this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
-	this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
-	this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
+	constructor( radius, theta, y ) {
 
-	return this;
+		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
+		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
+		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
 
-}
+		return this;
 
-Object.assign( Cylindrical.prototype, {
+	}
 
-	set: function ( radius, theta, y ) {
+	set( radius, theta, y ) {
 
 		this.radius = radius;
 		this.theta = theta;
@@ -22,15 +22,15 @@ Object.assign( Cylindrical.prototype, {
 
 		return this;
 
-	},
+	}
 
-	clone: function () {
+	clone() {
 
 		return new this.constructor().copy( this );
 
-	},
+	}
 
-	copy: function ( other ) {
+	copy( other ) {
 
 		this.radius = other.radius;
 		this.theta = other.theta;
@@ -38,15 +38,15 @@ Object.assign( Cylindrical.prototype, {
 
 		return this;
 
-	},
+	}
 
-	setFromVector3: function ( v ) {
+	setFromVector3( v ) {
 
 		return this.setFromCartesianCoords( v.x, v.y, v.z );
 
-	},
+	}
 
-	setFromCartesianCoords: function ( x, y, z ) {
+	setFromCartesianCoords( x, y, z ) {
 
 		this.radius = Math.sqrt( x * x + z * z );
 		this.theta = Math.atan2( x, z );
@@ -56,7 +56,7 @@ Object.assign( Cylindrical.prototype, {
 
 	}
 
-} );
+}
 
 
 export { Cylindrical };