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65 lines
1.6 KiB
C#
65 lines
1.6 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) position.
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/// </summary>
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[System.Serializable]
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public class ConstraintPositionOffset : Constraint {
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#region Main Interface
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/// <summary>
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/// The position offset in world space.
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/// </summary>
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public Vector3 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 values
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defaultLocalPosition = transform.localPosition;
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lastLocalPosition = transform.localPosition;
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initiated = true;
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}
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// Check if position has changed. If true, set default local position to current.
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if (positionChanged) defaultLocalPosition = transform.localPosition;
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// Offsetting the position
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transform.localPosition = defaultLocalPosition;
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transform.position += offset * weight;
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// Store the current local position to check if it has changed in the next update.
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lastLocalPosition = transform.localPosition;
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}
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#endregion Main Interface
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public ConstraintPositionOffset() {}
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public ConstraintPositionOffset(Transform transform) {
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this.transform = transform;
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}
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private Vector3 defaultLocalPosition, lastLocalPosition;
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private bool initiated;
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/*
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* Check if position 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 positionChanged {
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get {
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return transform.localPosition != lastLocalPosition;
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}
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}
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}
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}
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