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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;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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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 collection of ModelMesh objects.
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/// </summary>
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public sealed class ModelMeshCollection : ReadOnlyCollection<ModelMesh>
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{
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#region Public Properties
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/// <summary>
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/// Retrieves a ModelMesh from the collection, given the name of the mesh.
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/// </summary>
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/// <param name="meshName">
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/// The name of the mesh to retrieve.
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/// </param>
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public ModelMesh this[string meshName]
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{
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get
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{
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ModelMesh ret;
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if (!this.TryGetValue(meshName, out ret))
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{
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throw new KeyNotFoundException();
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}
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return ret;
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}
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}
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#endregion
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#region Internal Constructor
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internal ModelMeshCollection(IList<ModelMesh> list) : base(list)
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{
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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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/// Finds a mesh with a given name if it exists in the collection.
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/// </summary>
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/// <param name="meshName">
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/// The name of the mesh to find.
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/// </param>
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/// <param name="value">
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/// [OutAttribute] The mesh named meshName, if found.
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/// </param>
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public bool TryGetValue(string meshName, out ModelMesh value)
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{
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if (string.IsNullOrEmpty(meshName))
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{
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throw new ArgumentNullException("meshName");
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}
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foreach (ModelMesh mesh in this)
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{
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if (string.Compare(mesh.Name, meshName, StringComparison.Ordinal) == 0)
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{
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value = mesh;
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return true;
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}
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}
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value = null;
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return false;
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}
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#endregion
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#region Enumerator
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/// <summary>
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/// Returns a ModelMeshCollection.Enumerator that can iterate through a ModelMeshCollection.
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/// </summary>
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/// <returns></returns>
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public new Enumerator GetEnumerator()
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{
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return new Enumerator(this);
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}
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/// <summary>
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/// Provides the ability to iterate through the bones in an ModelMeshCollection.
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/// </summary>
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public struct Enumerator : IEnumerator<ModelMesh>
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{
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private readonly ModelMeshCollection collection;
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private int position;
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internal Enumerator(ModelMeshCollection collection)
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{
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this.collection = collection;
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position = -1;
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}
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/// <summary>
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/// Gets the current element in the ModelMeshCollection.
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/// </summary>
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public ModelMesh Current
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{
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get
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{
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return collection[position];
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}
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}
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/// <summary>
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/// Advances the enumerator to the next element of the ModelMeshCollection.
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/// </summary>
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public bool MoveNext()
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{
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position += 1;
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return (position < collection.Count);
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}
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/// <summary>
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/// Immediately releases the unmanaged resources used by this object.
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/// </summary>
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public void Dispose()
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{
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}
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object IEnumerator.Current
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{
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get
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{
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return collection[position];
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}
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}
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void IEnumerator.Reset()
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{
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position = -1;
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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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