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65 lines
1.7 KiB
C#
65 lines
1.7 KiB
C#
using UnityEngine;
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using System.Collections;
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namespace RootMotion.FinalIK {
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/// <summary>
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/// Offsets the transform from its (animated) rotation
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/// </summary>
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[System.Serializable]
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public class ConstraintRotationOffset: Constraint {
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#region Main Interface
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/// <summary>
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/// The rotation offset in world space.
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/// </summary>
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public Quaternion offset;
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public override void UpdateConstraint() {
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if (weight <= 0) return;
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if (!isValid) return;
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// Initiating
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if (!initiated) {
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// Storing default rotations.
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defaultLocalRotation = transform.localRotation;
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lastLocalRotation = transform.localRotation;
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initiated = true;
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}
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// Check if rotation has changed. If true, set default local rotation to current.
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if (rotationChanged) defaultLocalRotation = transform.localRotation;
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// Offsetting the rotation
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transform.localRotation = defaultLocalRotation;
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transform.rotation = Quaternion.Slerp(transform.rotation, offset, weight);
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// Store the current local rotation to check if it has changed in the next update.
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lastLocalRotation = transform.localRotation;
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}
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#endregion Main Interface
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public ConstraintRotationOffset() {}
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public ConstraintRotationOffset(Transform transform) {
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this.transform = transform;
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}
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private Quaternion defaultRotation, defaultLocalRotation, lastLocalRotation, defaultTargetLocalRotation;
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private bool initiated;
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/*
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* Check if rotation has been changed by animation or any other external script.
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* If not, consider the object to be static and offset only from the default rotation.
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* */
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private bool rotationChanged {
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get {
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return transform.localRotation != lastLocalRotation;
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}
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}
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}
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}
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