(ded4a3e0a) v0.9.0.7

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+// #region License
+// /*
+// Microsoft Public License (Ms-PL)
+// MonoGame - Copyright © 2009 The MonoGame Team
+// 
+// All rights reserved.
+// 
+// This license governs use of the accompanying software. If you use the software, you accept this license. If you do not
+// accept the license, do not use the software.
+// 
+// 1. Definitions
+// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under 
+// U.S. copyright law.
+// 
+// A "contribution" is the original software, or any additions or changes to the software.
+// A "contributor" is any person that distributes its contribution under this license.
+// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
+// 
+// 2. Grant of Rights
+// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, 
+// each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create.
+// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, 
+// each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or derivative works of the contribution in the software.
+// 
+// 3. Conditions and Limitations
+// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
+// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, 
+// your patent license from such contributor to the software ends automatically.
+// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution 
+// notices that are present in the software.
+// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including 
+// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or object 
+// code form, you may only do so under a license that complies with this license.
+// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees
+// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent
+// permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular
+// purpose and non-infringement.
+// */
+// #endregion License
+// 
+using System;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace Microsoft.Xna.Framework.Graphics
+{
+	public sealed class DirectionalLight
+	{
+		internal EffectParameter diffuseColorParameter;
+		internal EffectParameter directionParameter;
+		internal EffectParameter specularColorParameter;
+		
+		Vector3 diffuseColor;
+		Vector3 direction;
+		Vector3 specularColor;
+		bool enabled;
+		
+		public DirectionalLight (EffectParameter directionParameter, EffectParameter diffuseColorParameter, EffectParameter specularColorParameter, DirectionalLight cloneSource)
+		{
+			this.diffuseColorParameter = diffuseColorParameter;
+			this.directionParameter = directionParameter;
+			this.specularColorParameter = specularColorParameter;
+			if (cloneSource != null) {
+				this.diffuseColor = cloneSource.diffuseColor;
+				this.direction = cloneSource.direction;
+				this.specularColor = cloneSource.specularColor;
+				this.enabled = cloneSource.enabled;
+			} else {
+				this.diffuseColorParameter = diffuseColorParameter;
+				this.directionParameter = directionParameter;
+				this.specularColorParameter = specularColorParameter;
+			}
+		}
+		
+		public Vector3 DiffuseColor {
+			get {
+				return diffuseColor;
+			}
+			set {
+				diffuseColor = value;
+				if (this.enabled && this.diffuseColorParameter != null)
+					diffuseColorParameter.SetValue (diffuseColor);
+			}
+		}
+		
+		public Vector3 Direction {
+			get {
+				return direction;
+			}
+			set {
+				direction = value;
+				if (this.directionParameter != null)
+					directionParameter.SetValue (direction);
+			}
+		}
+		
+		public Vector3 SpecularColor {
+			get {
+				return specularColor;
+			}
+			set {
+				specularColor = value;
+				if (this.enabled && this.specularColorParameter != null)
+					specularColorParameter.SetValue (specularColor);
+			}
+		}
+		public bool Enabled 
+		{
+			get { return enabled; }
+			set 
+			{
+				if (this.enabled != value)
+				{
+				    this.enabled = value;
+				    if (this.enabled)
+				    {
+				        if (this.diffuseColorParameter != null)
+				        {
+				            this.diffuseColorParameter.SetValue(this.diffuseColor);
+				        }
+				        if (this.specularColorParameter != null)
+				        {
+				            this.specularColorParameter.SetValue(this.specularColor);
+				        }
+				    }
+				    else
+				    {
+				        if (this.diffuseColorParameter != null)
+				        {
+				            this.diffuseColorParameter.SetValue(Vector3.Zero);
+				        }
+				        if (this.specularColorParameter != null)
+				        {
+				            this.specularColorParameter.SetValue(Vector3.Zero);
+				        }
+				    }
+				}
+
+			}
+		}
+	}
+}
+