TutorialFramework/DebugOverlay.cs at master · MogreBindings/TutorialFramework · GitHub

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using Mogre;
using System;


namespace Mogre.TutorialFramework
{
    public class DebugOverlay
    {
        protected RenderWindow   mWindow;
        protected float          timeSinceLastDebugUpdate = 1;
        protected OverlayElement mGuiAvg;
        protected OverlayElement mGuiCurr;
        protected OverlayElement mGuiBest;
        protected OverlayElement mGuiWorst;
        protected OverlayElement mGuiTris;
        protected OverlayElement mModesText;
        protected string         mAdditionalInfo = "";


        public DebugOverlay(RenderWindow window)
        {
            mWindow = window;

            var debugOverlay = OverlayManager.Singleton.GetByName("Core/DebugOverlay");
            debugOverlay.Show();

            mGuiAvg    = OverlayManager.Singleton.GetOverlayElement("Core/AverageFps");
            mGuiCurr   = OverlayManager.Singleton.GetOverlayElement("Core/CurrFps");
            mGuiBest   = OverlayManager.Singleton.GetOverlayElement("Core/BestFps");
            mGuiWorst  = OverlayManager.Singleton.GetOverlayElement("Core/WorstFps");
            mGuiTris   = OverlayManager.Singleton.GetOverlayElement("Core/NumTris");
            mModesText = OverlayManager.Singleton.GetOverlayElement("Core/NumBatches");
        }

        public string AdditionalInfo
        {
            set { mAdditionalInfo = value; }
            get { return mAdditionalInfo; }
        }

        public void Update(float timeFragment)
        {
            if (timeSinceLastDebugUpdate > 0.5f)
            {
                var stats = mWindow.GetStatistics();

                mGuiAvg.Caption    = "Average FPS: "    + stats.AvgFPS;
                mGuiCurr.Caption   = "Current FPS: "    + stats.LastFPS;
                mGuiBest.Caption   = "Best FPS: "       + stats.BestFPS  + " " + stats.BestFrameTime  + " ms";
                mGuiWorst.Caption  = "Worst FPS: "      + stats.WorstFPS + " " + stats.WorstFrameTime + " ms";
                mGuiTris.Caption   = "Triangle Count: " + stats.TriangleCount;
                mModesText.Caption = mAdditionalInfo;

                timeSinceLastDebugUpdate = 0;
            }
            else
            {
                timeSinceLastDebugUpdate += timeFragment;
            }
        }
    }
}