/// <summary>
/// Initializes a new instance of the ExtendedModel class.
/// </summary>
/// <param name="content">The ContentManager to use to load the asset.</param>
/// <param name="assetName">The name of the asset to load.</param>
/// <exception cref="InvalidOperationException">Vertex data missing or in invalid format.</exception>
private ExtendedModel(PackFileContentManager content, string assetName)
{
this.model = content.Load<Model>(assetName);
try
{
if (this.model.Tag != null && this.model.Tag is Vector3[])
{
this.vertices = (Vector3[])this.model.Tag;
}
else
{
throw new InvalidOperationException(Resources.VertexDataMissingInvalid);
}
this.BoundingSphere = BoundingSphere.CreateFromPoints(this.vertices);
this.BoundingBox = BoundingBox.CreateFromPoints(this.vertices);
}
finally
{
this.model.Tag = null;
}
ExtendedModel.cache.Add(assetName, this);
}
/// <summary>
/// Initializes a new instance of the GameEngine class.
/// </summary>
/// <param name="deviceManager">The GraphicsDeviceManager to manage rendering.</param>
/// <param name="contentManager">The ContentManager for the content pipeline to load content from.</param>
/// <exception cref="System.ArgumentNullException">GraphicsDeviceManager is null -or- ContentManager is null.</exception>
public GameEngine(GraphicsDeviceManager deviceManager, PackFileContentManager contentManager)
: this(contentManager)
{
if (deviceManager == null)
{
throw new ArgumentNullException("deviceManager");
}
this.GraphicsDeviceManager = deviceManager;
}
/// <summary>
/// Initializes a new instance of the GameEngine class.
/// </summary>
/// <param name="content">The ContentManager for the content pipeline to load content from.</param>
/// <exception cref="System.ArgumentNullException">ContentManager is null.</exception>
private GameEngine(PackFileContentManager content)
: this()
{
if (content == null)
{
throw new ArgumentNullException("content");
}
this.Content = content;
this.FontCreator = new SpriteFontCreator(content.ServiceProvider);
}
/// <summary>
/// Loads a model from an XNB asset.
/// </summary>
/// <param name="content">The ContentManager to use to load the asset.</param>
/// <param name="assetName">The name of the asset to load.</param>
/// <returns>See summary.</returns>
public static ExtendedModel Load(PackFileContentManager content, string assetName)
{
if (ExtendedModel.cache.ContainsKey(assetName))
{
return ExtendedModel.cache[assetName];
}
else
{
return new ExtendedModel(content, assetName);
}
}