/// <summary>
/// Loads the specified sprite animation.
/// </summary>
private static SpriteAnimation LoadInternal(this ContentManager contentManager, SpriteAnimationID id, ScreenDensityBucket density, Boolean cache)
{
var sprite = contentManager.Load <Sprite>(SpriteAnimationID.GetSpriteAssetIDRef(ref id), density, cache);
var name = SpriteAnimationID.GetAnimationNameRef(ref id);
if (!String.IsNullOrEmpty(name))
{
var value = sprite[name];
if (value == null)
{
throw new ArgumentException(UltravioletStrings.InvalidSpriteAnimationReference.Format(id));
}
return(value);
}
var index = SpriteAnimationID.GetAnimationIndexRef(ref id);
if (index < 0 || index >= sprite.AnimationCount)
{
throw new ArgumentException(UltravioletStrings.InvalidSpriteAnimationReference.Format(id));
}
return(sprite[index]);
}
/// <summary>
/// Writes a sprite animation identifier to the stream.
/// </summary>
/// <param name="writer">The <see cref="BinaryWriter"/> with which to write the sprite animation identifier.</param>
/// <param name="id">The <see cref="SpriteAnimationID"/> to write to the stream.</param>
public static void Write(this BinaryWriter writer, SpriteAnimationID id)
{
writer.Write(id.IsValid);
if (id.IsValid)
{
writer.Write(SpriteAnimationID.GetSpriteAssetIDRef(ref id));
writer.Write(SpriteAnimationID.GetAnimationNameRef(ref id));
writer.Write(SpriteAnimationID.GetAnimationIndexRef(ref id));
}
}