Vector2 d = new Vector2(0, 0);

                    float Fi = getAngle(message.getLoc(), bwNode.getLoc());

                    d.x = Math.cos(Fi);
                    d.y = Math.sin(Fi);

                    Vector2 PT = new Vector2(0, 0);
                    PT.x = (message.getLoc().getX() - bwNode.getLoc().getX());
                    PT.y = (message.getLoc().getZ() - bwNode.getLoc().getZ());

                    double perplen = Math.abs(PT.x * d.y - PT.y * d.x);

                    double alonglen = Math.abs(PT.x * d.x + PT.y * d.y);

                    if(perplen <= AreaWidth/2){
                        if(alonglen >= 0 && alonglen <= AreaLength){
                            if(!targetsInArea.contains(targetToCheck)) {
                                targetsInArea.add(targetToCheck);
                            }
                        }
                    }



public float getAngle(Point player, Point target) {
        float angle = (float) Math.toDegrees(Math.atan2(target.getZ() - player.getZ(), target.getX() - player.getX()));

        if(angle < 0){
            angle += 360;
        }

        return angle;
    }