//
//  FPS.m
//  Awars III
//
//  Created by 桐谷 諭史 on 2016/02/01.
//  Copyright © 2016年 Killery. All rights reserved.
//

#import "FPS.h"

@implementation FPS

-(id)init{
    
    
    timer = [NSTimer
             scheduledTimerWithTimeInterval:1.0/30
             target:self
             selector:@selector(FPSFnc:)
             userInfo:nil
             repeats:YES];
    
    
    
    
    
    
    return self;
    
    
}


-(void)FPSFnc:(id)sender{
    
    GetFrameRate();
    
}

int GetFrameRateMAX(){
    
    static CFTimeInterval lastTime = 0;
    static int fps = 0;
    static bool fpsInit = false;
    
    if(!fpsInit){
        lastTime = CFAbsoluteTimeGetCurrent();
        fpsInit = true;
    }
    
    CFTimeInterval currentTime = CFAbsoluteTimeGetCurrent();
    fps++;
    if(currentTime - lastTime >= 1){
        NSLog(@"MAXFPS = %d", fps);
        fps = 0;
        lastTime = currentTime;
    }
    
    return fps;
}

int GetFrameRate(){
    
    static CFTimeInterval lastTime = 0;
    static int fps = 0;
    static bool fpsInit = false;
    
    if(!fpsInit){
        lastTime = CFAbsoluteTimeGetCurrent();
        fpsInit = true;
    }
    
    CFTimeInterval currentTime = CFAbsoluteTimeGetCurrent();
    fps++;
    if(currentTime - lastTime >= 1){
        NSLog(@"FPS = %d", fps);
        fps = 0;
        lastTime = currentTime;
    }
    
    return fps;
}

@end