using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FrameRateReporter : MonoBehaviour
{
    //          REFERENCES
    public TMPro.TMP_Text uiText;

    //          INTERNALS
    private float[] _samples = new float[20];
    private int _sampleIndex = 0;
    
    //          LIFECYCLE
    void Update()
    {
        // Get most recent unscaled delta time
        this._samples[this._sampleIndex] = Time.unscaledDeltaTime;

        // Update index (with wrap around)
        this._sampleIndex = (this._sampleIndex + 1) % this._samples.Length;

        // Calculate mininum and average frame rate
        float maxDelta = float.MinValue;
        float avgDelta = 0f;
        for (int i = 0; i < this._samples.Length; i++)
        {
            avgDelta += this._samples[i];
            maxDelta = (maxDelta < this._samples[i] ? this._samples[i] : maxDelta);
        }
        avgDelta /= this._samples.Length;

        // Write framerates to UI
        this.uiText.text = $"{string.Format("{0:0.0}", 1f / avgDelta)}\r\n{string.Format("{0:0.0}", 1f / maxDelta)}";
    }
}