https://github.com/czyang/Voice-Fighter-Android

dennisRitchie = null;

http://en.wikipedia.org/wiki/Dennis_Ritchie

Do you feel hard to focus? This app can help you train to focus, give you attention fitness. Make the plan and follow the training cycle, you can find it’s easy to focus! The training cycle is two phases the “attention time” and “break time”. In “attention time”, you need to focus on your work, in the break time you just take a few minutes to breaks. Through some training you will get a longer attention span.

Usage:

This is just 3 steps to train your attention.

1.Make the plan, set the attention time and break time, start with 12 minutes as attention time and 2 minutes as break time are recommended.

2.In the training cycle, when the “Start” button is pressed, the training cycle begins, training cycle has 2 phases. The first phase is “attention time”. In “attention time”, you need to focus on your work, when the timer goes off you will get a notification. Training will enter the “break time” the second phase, in this phase you just take a few minutes break (depend on your plan, 2 minutes is recommended for all situation). When the second phase end, the training is back to first phase, you need to focus on your work again… the training cycle won’t stop until “cancel” button is pressed.

3.Through some training if you feel you can focus longer, you would change your plan, increase the “attention time” (increase 2 minutes in each time is recommended).

注意力教练-网页版

简介

你感觉很难集中注意力吗？这个应用能够帮助你训练你的注意力，使你更容易集中注意力。你只需要在程序里面制定你的训练计划，然后根据提示执行的你计划，你会发现很容易就能够锻炼你的专注力。只需要用这个方法坚持练习一段时间，你就能够得到更长的集中注意力的时间。这是一个简单又有效的软件，为什么不试一下呢? :)

训练注意力的过程只需要三步：

1. 在程序中制定一个简单的计划，计划包括“集中注意力时间”，“休息时间”（我们强烈推荐你从12分钟“集中注意力时间”和 2分钟“休息时间”开始进行练习）。设定完之后记得点击应用。这样就可以进入下一步。

2. 现在可以点击“开始”按钮来进入训练周期。训练周期分为两步，第一步是“集中注意力时间”，程序会显示“请集中注意力”，在这个步骤中你就集中注意力做你的事情（比如工作，写文档，读文章等等）。计时器会进行倒计时，如果集中注意力的时间结束后，程序会给你一个提示，这样就进入训练周期的第二步在这个步骤中“休息时间”，在这个步骤中，你就让自己放松一会,“休息时间”结束之后，你会得到一个提示，这样又回到了“集中注意力时间”，你又开始做你的工作。这个训练周期会这样一直重复下去直到“取消”按钮被按下。

3. 通过重复训练周期，你很快会发现你可以集中精力更长时间，这样你就可以更进一步，现在增加训练计划中的“集中注意力时间”（我们建议你每次增加2分钟），你可以维持休息时间不变，2分钟的休息时间是在所有情况下都适用的，也是被推荐的，别忘了设置结束后点击“应用”按钮。

代码部分出自：Cocos2d论坛

方法的过程是：

1.需要保存游戏分数时，有游戏分数H，把H的数据类型转换成字符串：S，在S后加上字符串M作为混淆字符串，现在就得到字符串X(X=S+M).

2.用MD5或者其他加密算法加密字符串X，得到一串密文，把这串密文和H保存在本地文件中.

3.用户程序需要获取H时（比如游戏启动时需要在界面中显示最高分），读取保存密文和H的文件，这样就可以获得H和加密后的密文，现在就对密文进行解密，得到一个数字，用这个数字和H进行对比，如果得到的数字不等于H就证明用户修改过分数，可以选择清零数据；结果相等则通过检查。

#import <CommonCrypto/CommonDigest.h>

//magicString既为前文的字符串M,可以任意修改这个字符串，不过要注意长度不要超过加密函数的上限
static NSString* magicString = @"passward$#@";
//MD5加密，也可以用其他加密方法，或者新写一个加密函数调用N次这个md5算法。
#pragma mark crypto
-(NSString*) md5:(NSString*) str {
    const char *cStr = [str UTF8String];
    unsigned char result[CC_MD5_DIGEST_LENGTH];
    CC_MD5( cStr, strlen(cStr), result );
    return [NSString stringWithFormat:
            @"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
            result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7],
            result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15]
            ];
}

//这段代码应该在"saveHighScore"保存分数一类的函数中
//highscore既是H,需要加密保存的分数,magicString同上。
NSString *md5Input = [NSString stringWithFormat:@"%d%@", highscore, magicString];
//cryptoString是X,之后只需要保存X即可。
NSString *cryptoString = [self md5:md5Input];

//这段代码应该在readHighScore一类的函数里
//highscore是从文件中读取的之前保存的最高分
//cryptoString是从文件中读取的加密字符串
    NSString *md5Input = [NSString stringWithFormat:@"%d%@", highscore, magicString];
    NSString *cryptoString = [self md5:md5Input];
    if ([cryptoString isEqualToString:mima] == NO) {
        //用户手动修改了最高分数，归零最高分数
    }

因为好多临时变量的功能其实是相同的，所以我用了相同的名字。

如果你在模拟器里面测试程序时不知到你保存了的文件保存在哪里。请点击 iOS Simulator File System on Your Mac

If you hadn’t played a game like that, you must try my game: Voice Fighter

This article will teach you how to use the iPhone SDK to develop the voice control part of these kinds of game. You can use the code from this article to make your own game. But this article will not show you how to make the graphic part of the game. You can use Cocos2d or other game engine to make the rest of the game.

“Voice Control” in this point is not about the “speech recognition” but like the “voice operated switch”. These games receive the information from microphone and do some simple analysis，We will use AVAudioRecorder to receive the information. You must be aware that doing this work has a lot of ways, you can find more information in iphone SDK documents, as I know use AVAudioRecorder is the simplest way, so let’s start!

Here is the class(Objective-C) from my game Voice Fighter:

AVMicInput.h

//
//  AVMicInput.h
//  voicefighter
//
//  Created by Chengzhi Yang on 11-6-25.
//  http://codeand.me.
//  Copyright 2011 All rights reserved.
//
#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>
#import <CoreAudio/CoreAudioTypes.h>

@interface AVMicInput : NSObject {
    AVAudioRecorder *recorder;
    NSTimer *levelTimer;
}

-(float) micAveragePower;

@end

AVMicInput.m

//
//  AVMicInput.m
//  voicefighter
//
//  Created by Chengzhi Yang on 11-6-25.
//  http://codeand.me.
//  Copyright 2011 All rights reserved.
#import "AVMicInput.h"
@implementation AVMicInput
-(id) init
{
	if( (self=[super init]) ) {
        NSURL *url = [NSURL fileURLWithPath:@"/dev/null"];

        NSDictionary *settings = [NSDictionary dictionaryWithObjectsAndKeys:
                                  [NSNumber numberWithFloat: 44100.0],                 AVSampleRateKey,
                                  [NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey,
                                  [NSNumber numberWithInt: 1],                         AVNumberOfChannelsKey,
                                  [NSNumber numberWithInt: AVAudioQualityMin],         AVEncoderAudioQualityKey,
                                  nil];
        NSError *error;

        recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];

        if (recorder) {
            [recorder prepareToRecord];
            recorder.meteringEnabled = YES;
            [recorder record];
        } else
            NSLog(@"%@",[error description]);
	}
	return self;
}

- (void) dealloc {
    [recorder dealloc];
    [super dealloc];
}

-(float) micAveragePower
{
    [recorder updateMeters];
    float avgPower = [recorder averagePowerForChannel:0];
    //NSLog(@"%f",avgPower);
    return avgPower;
}

@end

You can add AVMicInput.h and  AVMicInput.m to your project without any change. This class will setup the AVAudioRecorder for you. You may notice the strings “/dev/null”. In Unix-like operating systems, “/dev/null” is a special file that discards all data written to it (but reports that the write operation succeeded) and provides no data to any process that reads from it [1], iPhone OS is one of Unix-like operating systems. Other codes will explain in rest of this article.

Put the following code to your initializer to initialize the AVMicInput class:

AVMicInput *avMicIn;
avMicIn = [[AVMicInput alloc] init];

In your main loop or where you want to get the information from microphone add the following code:

float micIn = [avMicIn micAveragePower];

If the AVMicInput was correctly initialized, micAveragePower will return a float that is the immediate dB(Decibel) information(you can also understand the information into digital signal) from microphone, the range of the return value micIn is [-120, 0].  -120 is the absolutely quiet, 0 is the maximum value(if the voice is very loud, such as a shout, you could get 0). I make a list to help you understand the micIn:
1. If your microphone was broken, iPhone or your Mac, you will always get -120 on your iphone or simulator.
2. In most cases, a silent environment. The range of micIn is about -30 to -50, you can test by yourself.
3. If you say “ahhh” or say something softly, the range of micIn is about -30 to -10.
4. if you speak loudly or shout, the range of micIn is  -10 to 0.

In my game Voice Fighter, through a lot of test and tweak, I used the below code to determine which state of value I got, is “ahhh” or “pah”(It’s not necessary to use these two incantation, “HA”, “PEW”, “BANG”, “KAMEHAMEHA”… is available)

if ( micIn > -6 ){
    //We got a "Pah"!
} else if ( micIn >= -25 && micIn < -6  ) {
    //we got a "Ahhhhhh"
}

You can tweak the threshold by your self.

Others you need know:
1. For now time, most iOS device has a microphone. I’m write the Voice Fighter use a ipod touch 4, but the older generation ipod may need a plug-in microphone to let you play with the microphone.

2. If you use Cocos2d to make your game or in your own engine you used the cocosDension to play the sound like this: [[SimpleAudioEngine sharedEngine] playEffect:@”1.aifc”]; You will noticed if you play a sound the AVAudioRecorder will stop work. For this situation, You can solve the problem by this method:
(1). Add #import “CDAudioManager.h” to AppDelegate.m .
(2). Add [CDAudioManager initAsynchronously:kAMM_PlayAndRecord]; to – (void) applicationDidFinishLaunching:(UIApplication*)application .
And you can find more solution in here. In that forum czyang is me :)

3. If you want to make a voice control game on Android platform please think twice. Theoretically make a voice control game on Android could use the same way, but I was made the Voice Fighter for Android(here) in same way. The input of microphone was totally different! Thanks to separate hardware on android. Each type of android phone have different hardware, and information from microphone on these device may have a huge different. The Voice Fighter for Android just working normally on a bit type of android phone, so I got a lot of 1 star in market. For now I don’t have a solution about this problem.

Now you got all of the “voice control” things. You can use these code to make a voice control game by your self.

If you feel this article is good for you, don’t forget to buy a Voice Fighter or tell your friends about this game for support me :)

BTW, Now I have a few promo code of voice fighter left. I will giveaway 5 of them. If you want to get one, please fill your email correctly and leave a reply follow this article with “Show me your code”. I will send the promo code to your email in 24 hours.

 $0.99

Play the game only by your VOICE !!!

Voice Fighter is a new voice control shooting game!

How to:

1.Say “ah” to control your fighter.

2.Shout “Pah” to shoot.

3.Shout for two seconds to launch the ultimate bomb!!!

MORE fun!  MORE crazier! 

Features:

1. Ultimate BOMB is a throat detonator!
2. Play the game only by your VOICE.
3. Play with your friends will get more fun!

Magic Tiles

Just $0.99

Caution! Somebody says that they are addicted to this game! :)

_______________________________________

How to play:

-In a limited time, keep taping a blank grid. Tiles having same colors will be eliminated if they are horizontally or vertically connected by the tapped grid, and you will get scores for the eliminations.
-If you taped a wrong grid, game time will decrease as penalty.
-If no more tiles can be eliminated, a new grids will be created.

_______________________________________

Tips on Scoring:

-You have 120 seconds to play.
-1 score for each tile elimination.
-1 wrong tap results 8-second decrease in game time.

_______________________________________

Features:

-Now support iPhone and iPod touch.

Screenshot