public float angle(Velocity l2) {
float scalar = (this.getX() * l2.getX()) + (this.getZ() * l2.getZ());
float distance1 = (float) Velocity.getDistance(new Velocity(0, 0), this);
float distance2 = (float) Velocity.getDistance(new Velocity(0, 0), l2);
float distance = distance1 * distance2;
// Szstem.out.println(distance1+","+distance2+","+Math.acos(scalar/distance));
return (float) Math.toDegrees(Math.acos(scalar / distance));
// |1| * |2|
// |1| * |2|
}
