public ModellManager(Device renderDevice)
        {
            this.renderDevice = renderDevice;

            antMaterial     = new Dictionary <int, Material>();
            markerMaterials = new Dictionary <int, Material>();
            colorFinder     = new ColorFinder();

            playgroundMaterial          = new Material();
            playgroundMaterial.Ambient  = Color.FromArgb(114, 114, 73);
            playgroundMaterial.Emissive = Color.FromArgb(90, 90, 58);
            playgroundMaterial.Specular = Color.FromArgb(114, 114, 73);
            colorFinder.BelegeFarbe(new Farbe(114, 114, 73));

            sugarMaterial          = new Material();
            sugarMaterial.Emissive = Color.FromArgb(200, 200, 200);
            sugarMaterial.Specular = Color.FromArgb(255, 255, 255);
            colorFinder.BelegeFarbe(new Farbe(200, 200, 200));

            bugMaterial          = new Material();
            bugMaterial.Emissive = Color.DarkBlue;
            bugMaterial.Specular = Color.FromArgb(0, 0, 150);
            colorFinder.BelegeFarbe(new Farbe(Color.DarkBlue.R, Color.DarkBlue.G, Color.DarkBlue.B));

            fruitMaterial          = new Material();
            fruitMaterial.Emissive = Color.Green;
            fruitMaterial.Specular = Color.FromArgb(0, 255, 0);
            colorFinder.BelegeFarbe(new Farbe(Color.Green.R, Color.Green.G, Color.Green.B));

            selectionMaterial          = new Material();
            selectionMaterial.Emissive = Color.FromArgb(120, 0, 0);
            selectionMaterial.Specular = Color.Red;

            fontNormal = new Font(renderDevice, new System.Drawing.Font(FONTFAMILY, FONTSIZE, FontStyle.Regular));
            fontBold   = new Font(renderDevice, new System.Drawing.Font(FONTFAMILY, FONTSIZE, FontStyle.Bold));
            line       = new Line(renderDevice);

            createResources();
        }
        /// <summary>
        /// Prepares all needed Colony-Materials
        /// </summary>
        /// <param name="colony">Colony-ID</param>
        public void PrepareColony(int colony)
        {
            if (!antMaterial.ContainsKey(colony))
            {
                // choose another color
                Farbe color;
                switch (colony)
                {
                case 0:
                    color = new Farbe(0, 0, 0);
                    break;

                case 1:
                    color = new Farbe(255, 0, 0);
                    break;

                case 2:
                    color = new Farbe(0, 0, 255);
                    break;

                case 3:
                    color = new Farbe(255, 255, 0);
                    break;

                default:
                    color = colorFinder.ErzeugeFarbe();
                    break;
                }
                colorFinder.BelegeFarbe(color);

                // Material for ants and flag
                Material material = new Material();
                material.Emissive = Color.FromArgb(color.Rot, color.Grün, color.Blau);
                material.Specular = Color.FromArgb(200, 200, 200);
                antMaterial.Add(colony, material);

                // Material for markers
                material          = new Material();
                material.Ambient  = Color.FromArgb(MARKERTRANSPARENCY, color.Rot, color.Grün, color.Blau);
                material.Diffuse  = Color.FromArgb(MARKERTRANSPARENCY, color.Rot, color.Grün, color.Blau);
                material.Emissive = Color.FromArgb(MARKERTRANSPARENCY, color.Rot, color.Grün, color.Blau);
                material.Specular = Color.FromArgb(MARKERTRANSPARENCY, color.Rot, color.Grün, color.Blau);
                markerMaterials.Add(colony, material);
            }
        }