clean client code

public/js/starbugs/world/asteroid.js

@@ -1,36 +1,10 @@
-function Asteroid(data) {
-	this.id = data.id;
-	this.x = data.delta[0];
-	this.y = data.delta[1];
-	this.r = data.delta[2];
-	this.bodyType = 'asteroid';
-	this.frame = data.frame;
-	this.updated = false;
+class Asteroid extends Body {
+	constructor(data) {
+		super(data)
+		this.bodyType = 'asteroid';
+	}
 
-	var b2Vec2 = Box2D.Common.Math.b2Vec2;
-	var s = SCALE;
+	tick() {
 
-	this.getPos = function() {
-		var pos = this.b2body.GetPosition();
-		var angle = this.b2body.GetAngle();
-		return {
-			x: pos.x,
-			y: pos.y,
-			r: angle
-		};
-	};
-
-	this.update = function(data) {
-		this.x = data[0];
-		this.y = data[1];
-		this.xvel = data[2]
-		this.yvel = data[3];
-		this.r = data[4];
-		this.rvel = data[5];
-		this.updated = 10;
-	};
-
-	this.tick = function() {
-
-	};
+	}
 }