using UnityEngine;
using UnityEditor;

public class ZIMFPSWindow : EditorWindow
{
    [MenuItem("Tools/Continuous FPS")]
    public static void Open()
    {
        EditorWindow.GetWindow(typeof(ZIMFPSWindow));
    }

    public static float fpsMean;   // 统计fps的均值
    public static GUIStyle ZIMStyle;

    static int count;
    static string info;
    static float timeFlag;

    void OnEnable()
    {
        count = 0;
        timeFlag = Time.time;
    }

    void OnGUI()
    {
        if (ZIMStyle == null) 
        {
            ZIMStyle = new GUIStyle(GUI.skin.label);
            ZIMStyle.fontSize = 18;
            ZIMStyle.alignment = TextAnchor.MiddleCenter;
        }

        GUILayout.Space(10);
        GUILayout.Label("Get mean FPS in continuous time", ZIMStyle);
        GUILayout.Space(10);

        if (GUILayout.Button("Reset"))
        {
            OnEnable();
        }
        GUILayout.Space(10);

        info = "Mean FPS value is: " + fpsMean;
        EditorGUILayout.HelpBox(info, MessageType.None, true);
    }

    private void OnInspectorUpdate()
    {
        // 调用Repaint方法来强制窗口重绘
        Repaint();
    }

    private void Update()
    {
        count++;
        fpsMean = count / (Time.time - timeFlag);
        //Debug.Log($"{count}, {Time.time}, {fpsMean}");
    }

}