/// <summary>
/// Returns a Tween instance that is configured to animate the alpha channel of a
/// Material.color property. Note that this function relies on the target component
/// having a renderer whose sharedMaterial property has been assigned. If it has not,
/// a NullReferenceException will be thrown.
/// </summary>
/// <param name="component"></param>
public static Tween <float> TweenAlpha(this Component component)
{
// Special cases for components which have a specific color, renderer, or material property
if (component is TextMesh)
{
return(TweenTextExtensions.TweenAlpha((TextMesh)component));
}
else if (component is GUIText)
{
return(TweenMaterialExtensions.TweenAlpha(((GUIText)component).material));
}
else if (component.GetComponent <Renderer>() is SpriteRenderer)
{
return(TweenSpriteExtensions.TweenAlpha((SpriteRenderer)component.GetComponent <Renderer>()));
}
if (component.GetComponent <Renderer>() == null)
{
throw new NullReferenceException("Component does not have a Renderer assigned");
}
var material = component.GetComponent <Renderer>().material;
if (material == null)
{
throw new NullReferenceException("Component does not have a Material assigned");
}
return(TweenMaterialExtensions.TweenAlpha(material));
}
public static Tween <float> Alpha(SpriteRenderer renderer)
{
return(TweenSpriteExtensions.TweenAlpha(renderer));
}
