Added default weight attribute

src/audio/AudioClient.java

@@ -12,7 +12,7 @@ public class AudioClient {
   public static void main(String[] args) throws InterruptedException {
     AudioPlayer player = new AudioPlayer(SAMPLE_RATE, 440);
 
-    Camera camera = new Camera(0.6, new Vector3(0, 0, -3));
+    Camera camera = new Camera(0.6, new Vector3(0, 0, -2));
     WorldObject cube = new WorldObject(args[0], new Vector3(0, 0, 0), new Vector3());
     Vector3 rotation = new Vector3(0,Math.PI / 100,Math.PI / 100);
 

src/shapes/Ellipse.java

@@ -17,11 +17,11 @@ public class Ellipse extends Shape {
   }
 
   public Ellipse(double a, double b, Vector2 position) {
-    this(a, b, 100, 0, position);
+    this(a, b, Shape.DEFAULT_WEIGHT, 0, position);
   }
 
   public Ellipse(double a, double b) {
-    this(a, b, 100, 0, new Vector2());
+    this(a, b, Shape.DEFAULT_WEIGHT, 0, new Vector2());
   }
 
   @Override

src/shapes/Line.java

@@ -4,8 +4,6 @@ public class Line extends Shape {
   private final Vector2 a;
   private final Vector2 b;
 
-  public static final double DEFAULT_WEIGHT = 100;
-
   public Line(Vector2 a, Vector2 b, double weight) {
     this.a = a;
     this.b = b;
@@ -14,7 +12,7 @@ public class Line extends Shape {
   }
 
   public Line(Vector2 a, Vector2 b) {
-    this(a, b, DEFAULT_WEIGHT);
+    this(a, b, Shape.DEFAULT_WEIGHT);
   }
 
   public Line(double x1, double y1, double x2, double y2, double weight) {

src/shapes/Shape.java

@@ -1,6 +1,8 @@
 package shapes;
 
 public abstract class Shape {
+  public static final int DEFAULT_WEIGHT = 100;
+
   protected double weight;
   protected double length;
 

src/shapes/Vector2.java

@@ -11,6 +11,7 @@ public class Vector2 extends Shape{
   public Vector2(double x, double y) {
     this.x = x;
     this.y = y;
+    this.weight = Shape.DEFAULT_WEIGHT;
   }
 
   public Vector2() {