public EntityCreationProperties(int screenx, int screeny)
{
LogFile.WriteLine("create entity screen pos : " + screenx + " " + screeny);
IGraphicsHelper graphics = GraphicsHelperFactory.GetInstance();
Camera camera = Camera.GetInstance();
Vector3 mousevector = graphics.GetMouseVector(
camera.CameraPos, camera.CameraRot, screenx, screeny);
pos = camera.CameraPos + 3.0 * mousevector.Normalize();
LogFile.WriteLine("mousevector: " + mousevector);
rot = new Rot();
scale = new Vector3(1, 1, 1);
}