54 lines
1.9 KiB
C#
54 lines
1.9 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEditor;
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using UnityEngine;
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[CustomEditor(typeof(VolumeLightDrawer))]
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public class RectangleDrawerEditor : Editor
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{
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private void OnSceneGUI()
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{
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VolumeLightDrawer drawer = (VolumeLightDrawer)target;
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// 将中心点转换为世界坐标
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Transform transform = drawer.transform;
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EditorGUI.BeginChangeCheck();
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Vector3 minPos = Handles.PositionHandle(drawer.BoundMinPos, Quaternion.identity);
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Vector3 maxPos = Handles.PositionHandle(drawer.BoundMaxPos, Quaternion.identity);
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Vector3 worldCenter = (minPos + maxPos) / 2;
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Vector3 minPos2 = Vector3.Min(minPos, maxPos);
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Vector3 maxPos2 = Vector3.Max(minPos, maxPos);
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Vector3 Size = minPos2 - maxPos2;
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if (EditorGUI.EndChangeCheck())
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{
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Undo.RecordObject(drawer, "Move Rectangle Center");
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drawer.BoundMinPos = minPos;
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drawer.BoundMaxPos = maxPos;
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drawer.transform.position = worldCenter;
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}
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else
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{
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//只要选中这个物体，之后所有的鼠标拖拽事件这里都可以监控到
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if (Event.current.type == EventType.MouseDrag)
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{
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Undo.RecordObject(drawer, "Move drawer Center");
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drawer.BoundMinPos = transform.position - Size/2; //minPos;
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drawer.BoundMaxPos = transform.position + Size/2;//maxPos;
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//如果加入下面的代码，这个鼠标拖拽事件就不会被引擎内的控件相应，也就拖不动物体自己的坐标轴了
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//使用改方法使鼠标事件被自己创造的坐标控件截胡
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// Event.current.Use();
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}
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}
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// 绘制矩形线框
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Handles.color = drawer.lineColor;
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Handles.DrawWireCube(worldCenter,Size);
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}
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}
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