63 lines
1.8 KiB
C#
63 lines
1.8 KiB
C#
/**
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* Copyright(c) Live2D Inc. All rights reserved.
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*
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* Use of this source code is governed by the Live2D Open Software license
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* that can be found at https://www.live2d.com/eula/live2d-open-software-license-agreement_en.html.
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*/
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using Live2D.Cubism.Core;
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using Live2D.Cubism.Rendering;
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using UnityEngine;
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namespace Live2D.Cubism.Framework.LookAt
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{
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/// <summary>
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/// Provides the center position for look-at calculations using an ArtMesh (CubismDrawable).
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/// </summary>
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[DisallowMultipleComponent]
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public class CubismLookCenterArtMesh : MonoBehaviour, ICubismLookCenter
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{
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/// <summary>
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/// Target drawable to calculate the center from.
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/// </summary>
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[SerializeField]
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public CubismDrawable TargetDrawable;
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/// <summary>
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/// Model root transform.
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/// </summary>
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private Transform _modelRootTransform;
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private void Start()
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{
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_modelRootTransform = this.transform;
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}
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/// <summary>
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/// Gets the position of the center.
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/// </summary>
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public Vector3 GetCenterPosition()
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{
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if (TargetDrawable == null)
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{
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return Vector3.zero;
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}
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var cubismRenderer = TargetDrawable.GetComponent<CubismRenderer>();
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if (cubismRenderer == null || cubismRenderer.Mesh == null)
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{
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return _modelRootTransform.InverseTransformPoint(TargetDrawable.transform.position);
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}
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var centerInMeshLocal = cubismRenderer.Mesh.bounds.center;
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var centerInWorld = TargetDrawable.transform.TransformPoint(centerInMeshLocal);
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var centerInModelLocal = _modelRootTransform.InverseTransformPoint(centerInWorld);
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return centerInModelLocal;
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}
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}
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}
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