/Utilities/Graphics/ShaderFeatures/NormalMappingShaderFeature.cs

using System.Collections.Generic;

using System.IO;



namespace Delta.Utilities.Graphics.ShaderFeatures

{

	/// <summary>

	/// Normal mapping shader feature

	/// Note: Make sure that the normal map required also the PointLight.

	/// </summary>

	public class NormalMapShaderFeature : IShaderFeature

	{

		#region NormalMap (Public)

		/// <summary>

		/// NormalMap, is always set except when ShaderFeatureFlags.NoTexturing is

		/// set (then we don't want a diffuse map and this setting is ignored).

		/// </summary>

		public string NormalMap = "";

		#endregion



		#region ShaderFeature (Public)

		/// <summary>

		/// Which shader feature flag is this ShaderFeature class using?

		/// Important for loading this file via ShaderData.LoadShaderFeature.

		/// Each flag should obviously only have one class for it!

		/// </summary>

		public ShaderFeatureFlags ShaderFeature

		{

			get

			{

				return ShaderFeatureFlags.NormalMap;

			}

		}

		#endregion



		#region RequiredShaderFeatures (Public)

		/// <summary>

		/// Which shader feature flags are required for this ShaderFeature.

		/// Very important for creating of a new ShaderFeature.

		/// </summary>

		public ShaderFeatureFlags RequiredShaderFeatures

		{

			get

			{

				return ShaderFeatureFlags.DynamicDirectionalLighting;

			}

		}

		#endregion



		#region Parameters (Public)

		/// <summary>

		/// Parameters as a dictionary, willl be generated on the fly when

		/// requested.

		/// </summary>

		public Dictionary<string, object> Parameters

		{

			get

			{

				Dictionary<string, object> ret = new Dictionary<string, object>();

				ret.Add("NormalMap", NormalMap);

				return ret;

			}

		}

		#endregion



		#region Constructors

		/// <summary>

		/// Create normal mapping shader feature

		/// </summary>

		public NormalMapShaderFeature()

		{

		}



		/// <summary>

		/// Create normal mapping shader feature and load automatically

		/// the ShaderFeatures from a binary data stream.

		/// </summary>

		public NormalMapShaderFeature(BinaryReader reader)

		{

			Load(reader);

		}

		#endregion



		#region ISaveLoadBinary Members

		/// <summary>

		/// Load this ShaderFeature from a binary data stream.

		/// </summary>

		public void Load(BinaryReader reader)

		{

			NormalMap = reader.ReadString();

		}



		/// <summary>

		/// Save this ShaderFeature to a binary data stream.

		/// </summary>

		public void Save(BinaryWriter writer)

		{

			writer.Write(NormalMap);

		}

		#endregion

	}

}