68 lines
2.0 KiB
C#
68 lines
2.0 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace Dreamteck
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{
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public static class TransformUtility
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{
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public static Vector3 GetPosition(Matrix4x4 m)
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{
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return m.GetColumn(3);
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}
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public static Quaternion GetRotation(Matrix4x4 m)
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{
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return Quaternion.LookRotation(m.GetColumn(2), m.GetColumn(1));
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}
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public static Vector3 GetScale(Matrix4x4 m)
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{
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return new Vector3(m.GetColumn(0).magnitude, m.GetColumn(1).magnitude, m.GetColumn(2).magnitude);
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}
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public static void SetPosition(ref Matrix4x4 m, ref Vector3 p)
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{
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m.SetColumn(3, new Vector4(p.x, p.y, p.z, 1f));
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}
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public static void GetChildCount(Transform parent, ref int count)
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{
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foreach (Transform child in parent)
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{
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count++;
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GetChildCount(child, ref count);
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}
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}
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public static void MergeBoundsRecursively(this Transform rootParent, Transform tr, ref Bounds bounds)
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{
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foreach (Transform child in tr)
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{
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MergeBoundsRecursively(rootParent, child, ref bounds);
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var meshFilter = child.GetComponent<MeshFilter>();
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if (meshFilter == null) continue;
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var min = child.TransformPoint(meshFilter.sharedMesh.bounds.min);
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var max = child.TransformPoint(meshFilter.sharedMesh.bounds.max);
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bounds.Encapsulate(rootParent.InverseTransformPoint(min));
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bounds.Encapsulate(rootParent.InverseTransformPoint(max));
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}
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}
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public static bool IsParent(Transform child, Transform parent)
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{
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Transform current = child;
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while(current.parent != null)
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{
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current = current.parent;
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if (current == parent) return true;
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}
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return false;
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}
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}
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}
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