/// <summary>
/// Animates the rotation of a GameObject to the specified Quaternion over time.
/// </summary>
/// <param name="gameObject">GameObject to rotate.</param>
/// <param name="newRotation">New Quaternion rotation.</param>
/// <param name="duration">Length of the animation in seconds.</param>
/// <returns>Coroutine</returns>
public static Coroutine RotateTo(GameObject gameObject, Quaternion newRotation, float duration)
{
var animationCurve = new Vector4AnimationCurve();
var currentRotation = gameObject.transform.localRotation;
var newRotationCopy = Quaternion.SlerpUnclamped(currentRotation, newRotation, 1);
animationCurve.x = AnimationCurve.EaseInOut(0, currentRotation.x, duration, newRotationCopy.x);
animationCurve.y = AnimationCurve.EaseInOut(0, currentRotation.y, duration, newRotationCopy.y);
animationCurve.z = AnimationCurve.EaseInOut(0, currentRotation.z, duration, newRotationCopy.z);
animationCurve.w = AnimationCurve.EaseInOut(0, currentRotation.w, duration, newRotationCopy.w);
return(Rotation(gameObject, animationCurve));
}
/// <summary>
/// Changes the rotation of a GameObject to the evaluated Vector3 calculated from a Vector3AnimationCurve object.
/// </summary>
/// <param name="gameObject">GameObject to rotate.</param>
/// <param name="animationCurve">Vector3AnimationCurve to evaluate.</param>
/// <param name="elapsedTime">The time elapsed since the animation started.</param>
/// <returns>void</returns>
public static void Rotation(GameObject gameObject, Vector4AnimationCurve animationCurve, float elapsedTime)
{
var rotation = animationCurve.Evaluate(elapsedTime);
gameObject.transform.localRotation = new Quaternion(rotation.x, rotation.y, rotation.z, rotation.w);
}
/// <summary>
/// Animates the rotation of a GameObject with a Vector3AnimationCurve.
/// </summary>
/// <param name="gameObject">GameObject to rotate.</param>
/// <param name="animationCurve">Vector3AnimationCurve to evaluate.</param>
/// <returns>Coroutine</returns>
public static Coroutine Rotation(GameObject gameObject, Vector4AnimationCurve animationCurve)
{
return(StartCoroutine(gameObject, "Rotation",
Loop(gameObject, "Rotation", animationCurve.IsLooping(), animationCurve.MaxTime(),
elapsedTime => Rotation(gameObject, animationCurve, elapsedTime))));
}
