public static void LoadContent(ContentManager content, GraphicsDevice graphics)
        {
            blur = content.Load <Effect>("Shaders/Blur");
            blur.Parameters["width"].SetValue((float)(Screen.ScreenSize.X / 2));
            blur.Parameters["height"].SetValue((float)(Screen.ScreenSize.Y / 2));

            portalMap = content.Load <Effect>("Shaders/PortalMap");
            dottedLineCircleSprite = content.Load <Texture2D>("GameObjects/DottedLineCircle");

            Player.LoadContent(content);
            Gravity.LoadContent(content);
            Finish.LoadContent(content);
            Star.LoadContent(content);
            Portal.LoadContent(content);
            TrailDrawer.LoadContent(content, graphics);
            PortalParticlesDrawer.LoadContent(content);
            GravityParticlesDrawer.LoadContent(content);

            ParticlesDrawer <PortalParticleVertexData> .LoadContent(graphics);

            ParticlesDrawer <GravityParticleVertexData> .LoadContent(graphics);
        }