frameCounter

#ifndef FrameCounter_h
#define FrameCounter_h


#endif /* FrameCounter_h */


#include "ofMain.h"
#pragma once

class FrameCounter{
    
public:
    
    deque<float> frameRates;

    float lastFrameTime;
    float avgFrameRate;
    int numFramesToAvg = 10;
    long numFramesReceived = 0;
    
    //log a new frame
    void newFrame(){
        
        numFramesReceived++;
        
        //frame counting
        float thisFrameRate = 1.0/( (ofGetElapsedTimef() - lastFrameTime) );
        frameRates.push_back( thisFrameRate );
        
        //delete oldest frame times
        while( frameRates.size() > numFramesToAvg ){
            frameRates.pop_front();
        }
        
        //get the avgFramerate from the frametimes we've kept
        float total = 0;
        for(int i = 0; i < frameRates.size(); i++){
            total += frameRates[i];
        }
        avgFrameRate = total/(float)frameRates.size();
        lastFrameTime = ofGetElapsedTimef();
        
    }
    
    //get that data back
    float getAvgFrameRate(){
        
        //if it's been more than a sec or two since we've gotten a frame
        //return -1 instead of the last framerate we logged
        if( ofGetElapsedTimef() - lastFrameTime > 2.0f ){
            return -1.0f;
        } else {
            return avgFrameRate;
        }
        
    }
    
    int getNumFrames(){
        return numFramesReceived;
    }
    
};