IOS-LED-Incapacitator/TimerManager.m at master · bobschriver/IOS-LED-Incapacitator · GitHub

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//
//  TimerManager.m
//  LED Incapacitator
//
//  Created by Robert Schriver on 1/14/12.
//  Copyright 2012 __MyCompanyName__. All rights reserved.
//

#import "TimerManager.h"

@interface TimerManager ()
- (void)stopLED;
@end

@implementation TimerManager

@synthesize flashController;

@synthesize frequencyMinimum;
@synthesize frequencyMaximum;

@synthesize duration;

-(id) init
{

	if (self = [super init])
	{
		flashController = [FlashController init];

		frequencyMinimum = 1;
		frequencyMaximum = 10;

		duration = .5;
	}

	return self;
}

-(void) startTimer
{
	uint random = arc4random();

	int frequency = (random % (frequencyMaximum - frequencyMinimum)) + frequencyMinimum;

	printf("Random %u Frequency %d\n" , random , frequency);

	double frequencyInMilliseconds = 1.0 / frequency;

	double durationInMilliseconds = frequencyInMilliseconds * duration;

	printf("In Timer %f\n", frequencyInMilliseconds);

	[self performSelector:@selector(startTimer) withObject:nil afterDelay:frequencyInMilliseconds];

	printf("Starting LED\n");
	[flashController toggleStrobe:TRUE];

	[self performSelector:@selector(stopLED) withObject:nil afterDelay:durationInMilliseconds];
}

-(void) stopLED
{
	printf("Stopping LED\n");

	[flashController toggleStrobe:FALSE];
}

@end