using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using UnityEditorInternal;

[CustomEditor(typeof(Robot))]
public class RobotEditor : Editor
{
    private Robot robot;
    private ReorderableList _motionList;
    SerializedProperty CenterOfMass;
    SerializedProperty isPlaying;
    SerializedProperty HVBUSSERVO_Speed;
    SerializedProperty HVBUSSERVOs;
    SerializedProperty hvbdata;

    private void OnEnable()
    {
        CenterOfMass = serializedObject.FindProperty("CenterOfMass");
        isPlaying = serializedObject.FindProperty("isPlaying");
        HVBUSSERVO_Speed = serializedObject.FindProperty("HVBUSSERVO_Speed");
        HVBUSSERVOs = serializedObject.FindProperty("HVBUSSERVOs");
        hvbdata = serializedObject.FindProperty("hvbdata");

        robot = (Robot)target;

        //创建ReorderableList 参数：
        //arg1:序列化物体，arg2:序列化数据，arg3:可否拖动，arg4:是否显示标题，arg5:是否显示添加按钮，arg6:是否显示添加按钮
        _motionList = new ReorderableList(serializedObject, serializedObject.FindProperty("motions")
            , true, true, true, true);

        //自定义列表名称
        _motionList.drawHeaderCallback = (Rect rect) =>
        {
            GUI.Label(rect, "动作元列表");
        };

        //定义元素的高度
        _motionList.elementHeight = 190;

        //_motionList.elementHeightCallback = (int index) =>
        //{
        //    SerializedProperty element = _motionList.serializedProperty.GetArrayElementAtIndex(index);

        //    SerializedProperty namesProp = element.FindPropertyRelative("");

        //    return EditorGUI.GetPropertyHeight(namesProp) + EditorGUIUtility.standardVerticalSpacing;
        //};

        //自定义绘制列表元素
        _motionList.drawElementCallback = (Rect rect, int index, bool selected, bool focused) =>
        {
            //根据index获取对应元素 
            SerializedProperty item = _motionList.serializedProperty.GetArrayElementAtIndex(index);
            rect.height = 18;
            rect.y += 2;
            EditorGUI.PropertyField(rect, item, new GUIContent("动作_" + (index + 1) + " :"));
        };

        //当删除元素时候的回调函数，实现删除元素时，有提示框跳出
        _motionList.onRemoveCallback = (ReorderableList list) =>
        {
            if (EditorUtility.DisplayDialog("Warnning", "Do you want to remove this element?", "Remove", "Cancel"))
            {
                ReorderableList.defaultBehaviours.DoRemoveButton(list);
            }
        };
    }


    public override void OnInspectorGUI()
    {
        //更新
        serializedObject.Update();

        EditorGUILayout.BeginVertical(EditorStyles.helpBox);
        EditorGUILayout.PropertyField(CenterOfMass, new GUIContent("观测重心："));
        EditorGUILayout.PropertyField(isPlaying, new GUIContent("isPlaying："));
        //EditorGUILayout.PropertyField(HVBUSSERVO_Speed, new GUIContent("电机速度："));
        EditorGUILayout.PropertyField(hvbdata, new GUIContent("测试数据："));
        EditorGUI.BeginDisabledGroup(true);
        EditorGUILayout.PropertyField(HVBUSSERVOs, new GUIContent("电机列表："));
        EditorGUI.EndDisabledGroup();
        EditorGUILayout.EndVertical();
        //自动布局绘制列表
        _motionList.DoLayoutList();
        //应用
        serializedObject.ApplyModifiedProperties();
    }

}