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#region License
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/* FNA - XNA4 Reimplementation for Desktop Platforms
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* Copyright 2009-2020 Ethan Lee and the MonoGame Team
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*
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* Released under the Microsoft Public License.
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* See LICENSE for details.
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*/
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#endregion
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#region Using Statements
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using System.Collections.Generic;
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#endregion
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namespace Microsoft.Xna.Framework.Graphics
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{
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/// <summary>
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/// Represents a mesh that is part of a Model.
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/// </summary>
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public sealed class ModelMesh
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{
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#region Public Properties
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/// <summary>
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/// Gets the BoundingSphere that contains this mesh.
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/// </summary>
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public BoundingSphere BoundingSphere
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{
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get;
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internal set;
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}
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/// <summary>
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/// Gets a collection of effects associated with this mesh.
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/// </summary>
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public ModelEffectCollection Effects
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets the ModelMeshPart objects that make up this mesh. Each part of a mesh
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/// is composed of a set of primitives that share the same material.
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/// </summary>
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public ModelMeshPartCollection MeshParts
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{
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get;
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private set;
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}
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/// <summary>
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/// Gets the name of this mesh.
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/// </summary>
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public string Name
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{
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get;
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internal set;
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}
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/// <summary>
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/// Gets the parent bone for this mesh. The parent bone of a mesh contains a
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/// transformation matrix that describes how the mesh is located relative to
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/// any parent meshes in a model.
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/// </summary>
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public ModelBone ParentBone
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{
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get;
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internal set;
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}
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/// <summary>
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/// Gets or sets an object identifying this mesh.
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/// </summary>
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public object Tag
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{
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get;
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set;
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}
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#endregion
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#region Private Variables
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private GraphicsDevice graphicsDevice;
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#endregion
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#region Internal Constructor
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internal ModelMesh(GraphicsDevice graphicsDevice, List<ModelMeshPart> parts)
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{
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// TODO: Complete member initialization
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this.graphicsDevice = graphicsDevice;
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MeshParts = new ModelMeshPartCollection(parts);
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foreach (ModelMeshPart part in parts)
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{
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part.parent = this;
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}
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Effects = new ModelEffectCollection();
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}
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#endregion
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#region Public Methods
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/// <summary>
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/// Draws all of the ModelMeshPart objects in this mesh, using their current
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/// Effect settings.
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/// </summary>
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public void Draw()
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{
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foreach (ModelMeshPart part in MeshParts)
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{
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Effect effect = part.Effect;
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if (part.PrimitiveCount > 0)
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{
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graphicsDevice.SetVertexBuffer(part.VertexBuffer);
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graphicsDevice.Indices = part.IndexBuffer;
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foreach (EffectPass pass in effect.CurrentTechnique.Passes)
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{
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pass.Apply();
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graphicsDevice.DrawIndexedPrimitives(
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PrimitiveType.TriangleList,
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part.VertexOffset,
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0,
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part.NumVertices,
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part.StartIndex,
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part.PrimitiveCount
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);
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}
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}
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}
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}
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#endregion
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}
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}
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