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Assets/CoolapeFrame/3rd/NGUI_Enhance/Scripts/Tweening/TweenRotation.cs

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+//----------------------------------------------
+//            NGUI: Next-Gen UI kit
+// Copyright © 2011-2015 Tasharen Entertainment
+//----------------------------------------------
+
+using UnityEngine;
+
+/// <summary>
+/// Tween the object's rotation.
+/// </summary>
+
+[AddComponentMenu("NGUI/Tween/Tween Rotation")]
+public class TweenRotation : UITweener
+{
+	public Vector3 from;
+	public Vector3 to;
+	public bool quaternionLerp = false;
+
+	Transform mTrans;
+
+	public Transform cachedTransform { get { if (mTrans == null) mTrans = transform; return mTrans; } }
+
+	[System.Obsolete("Use 'value' instead")]
+	public Quaternion rotation { get { return this.value; } set { this.value = value; } }
+
+	/// <summary>
+	/// Tween's current value.
+	/// </summary>
+
+	public Quaternion value { get { return cachedTransform.localRotation; } set { cachedTransform.localRotation = value; } }
+
+	/// <summary>
+	/// Tween the value.
+	/// </summary>
+
+	protected override void OnUpdate (float factor, bool isFinished)
+	{
+		value = quaternionLerp ? Quaternion.Slerp(Quaternion.Euler(from), Quaternion.Euler(to), factor) :
+			Quaternion.Euler(new Vector3(
+			Mathf.Lerp(from.x, to.x, factor),
+			Mathf.Lerp(from.y, to.y, factor),
+			Mathf.Lerp(from.z, to.z, factor)));
+	}
+
+	/// <summary>
+	/// Start the tweening operation.
+	/// </summary>
+
+	static public TweenRotation Begin (GameObject go, float duration, Quaternion rot)
+	{
+		TweenRotation comp = UITweener.Begin<TweenRotation>(go, duration);
+		comp.from = comp.value.eulerAngles;
+		comp.to = rot.eulerAngles;
+
+		if (duration <= 0f)
+		{
+			comp.Sample(1f, true);
+			comp.enabled = false;
+		}
+		return comp;
+	}
+
+	[ContextMenu("Set 'From' to current value")]
+	public override void SetStartToCurrentValue () { from = value.eulerAngles; }
+
+	[ContextMenu("Set 'To' to current value")]
+	public override void SetEndToCurrentValue () { to = value.eulerAngles; }
+
+	[ContextMenu("Assume value of 'From'")]
+	void SetCurrentValueToStart () { value = Quaternion.Euler(from); }
+
+	[ContextMenu("Assume value of 'To'")]
+	void SetCurrentValueToEnd () { value = Quaternion.Euler(to); }
+}