protected override Model ReadContent(IContentManager readerManager, GraphicsDevice device, ref ContentReaderParameters parameters)
{
var readerOptions = parameters.Options as ModelContentReaderOptions;
if (parameters.Options != null && readerOptions == null)
{
throw new ArgumentException("Invalid options. Must be instance of ModelContentReaderOptions", "options");
}
var assetPath = Path.GetDirectoryName(parameters.AssetName);
// Loads the model.
var model = Model.Load(device, parameters.Stream, name =>
{
// Try to load the texture with its texture path as is
// otherwise try to load with tkb extension
var texturePath = Path.Combine(assetPath ?? string.Empty, name);
if (!readerManager.Exists(texturePath))
{
// Use the extension tkb to load a texture
texturePath = Path.ChangeExtension(texturePath, "tkb");
}
// If the texture exists, return it, otherwise return null without throwing an exception.
return(readerManager.Exists(texturePath) ? readerManager.Load <Texture>(texturePath) : null);
});
if (model == null)
{
return(null);
}
// If the model has no name, use filename
if (model.Name == null)
{
model.Name = Path.GetFileName(parameters.AssetName);
}
// Applies the Effect installer on the model.
bool disableInstaller = readerOptions != null && readerOptions.DisableEffectInstaller;
if (!disableInstaller)
{
IEffectInstaller effectInstaller;
if (readerOptions != null && readerOptions.EffectInstaller != null)
{
effectInstaller = readerOptions.EffectInstaller;
}
else
{
effectInstaller = new BasicEffectInstaller(device);
}
effectInstaller.Apply(model);
}
return(model);
}
/// <summary>
/// Check if the specified asset url exists.
/// </summary>
/// <param name="content">The <see cref="IContentManager"/>.</param>
/// <param name="urlReference">The URL.</param>
/// <returns><c>true</c> if the specified asset url exists, <c>false</c> otherwise.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="urlReference"/> is <c>null</c> or <c>empty</c>. Or <paramref name="content"/> is <c>null</c>.</exception>
public static bool Exists(this IContentManager content, IUrlReference urlReference)
{
CheckArguments(content, urlReference);
return(content.Exists(urlReference.Url));
}