/// <summary>
/// Creates a new FROM tween and returns the <see cref="Tweener"/> representing it,
/// or <c>null</c> if the tween was invalid (no valid property to tween was given).
/// </summary>
/// <param name="p_target">
/// The tweening target (must be the object containing the properties or fields to tween).
/// </param>
/// <param name="p_duration">
/// The duration in seconds of the tween.
/// </param>
/// <param name="p_parms">
/// A <see cref="TweenParms"/> representing the tween parameters.
/// You can pass an existing one, or create a new one inline via method chaining,
/// like <c>new TweenParms().Prop("x",10).Loops(2).OnComplete(myFunction)</c>
/// </param>
/// <returns>
/// The newly created <see cref="Tweener"/>,
/// or <c>null</c> if the parameters were invalid.
/// </returns>
public static Tweener From(object p_target, float p_duration, TweenParms p_parms)
{
if (!initialized) Init();
p_parms = p_parms.IsFrom();
Tweener tw = new Tweener(p_target, p_duration, p_parms);
// Check if tween is valid.
if (tw.isEmpty) {
return null;
}
AddTween(tw);
// Immediately jump to position 0 to avoid flickering of objects before they're punched to FROM position.
// p_isStartupIteration is set to FALSE to ignore callbacks.
if (!tw._isPaused) {
tw.Update(0, true, true, false, true);
}
return tw;
}
