Refatored Vertex class and changed initialization

src/ch/bfh/sevennotseven/Vertex.java

@@ -5,26 +5,36 @@ import java.awt.Point;
 public class Vertex {
 	
 	private int dist;
-	private Point prev;
+	private Point pos;
+	private Vertex prev;
 	
-	public Vertex(int dist, Point prev) {
+	public Vertex(int dist, Point pos) {
 		this.dist = dist;
-		this.prev = prev;
+		this.pos = pos;
+		this.prev = new Vertex(0, new Point(0,0));
 	}
 	
 	public void setDist(int dist){
 		this.dist = dist;
 	}
 	
-	public void setPrev(Point prev){
-		this.prev = prev;
+	public void setPos(Point pos){
+		this.pos = pos;
+	}
+	
+	public void setPrev(Vertex prev){
+		this.prev = prev;		
 	}
 	
 	public int getDist(){
 		return this.dist;
 	}
 	
-	public Point getPrev(){
+	public Point getPos(){
+		return this.pos;
+	}
+	
+	public Vertex getPrev(){
 		return this.prev;
 	}