followme

package jrcode.followme;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class FollowMe extends Activity implements OnClickListener {
    /** Called when the activity is first created. */

	Button UpLeftButton, UpRightButton, DownLeftButton, DownRightButton;
	Button StartButton, CheckButton, RepeatButton, ClearButton;
	TextView ScoreTextView, LevelTextView, InputTextView;
	MediaPlayer myMediaPlayer;

	int Music[], Input[];
	int level, score, stage;

	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ScoreTextView = (TextView)findViewById(R.id.Tv_score);
        LevelTextView = (TextView)findViewById(R.id.Tv_level);
        InputTextView = (TextView)findViewById(R.id.Tv_input);

        UpLeftButton = (Button)findViewById(R.id.upleft);
        UpRightButton = (Button)findViewById(R.id.upright);
        DownLeftButton = (Button)findViewById(R.id.downleft);
        DownRightButton = (Button)findViewById(R.id.downright);

        StartButton = (Button)findViewById(R.id.start);
    	CheckButton = (Button)findViewById(R.id.check);
    	RepeatButton = (Button)findViewById(R.id.repeat);
    	ClearButton = (Button)findViewById(R.id.clear);

    	StartButton.setOnClickListener(Button_Listener);
    	CheckButton.setOnClickListener(Button_Listener);
    	RepeatButton.setOnClickListener(Button_Listener);
    	ClearButton.setOnClickListener(Button_Listener);
        UpLeftButton.setOnClickListener(this);
        UpRightButton.setOnClickListener(this);
        DownLeftButton.setOnClickListener(this);
        DownRightButton.setOnClickListener(this);

        Initiparameter();
    }

	public void UpdateScoreLevel(int gain)  // 更新 關卡 分數 觸控的次數
	{
		score += gain;
		ScoreTextView.setText(String.valueOf(score));
		LevelTextView.setText(String.valueOf(level));
		InputTextView.setText(String.valueOf(stage));
	}

	public void Initiparameter()  // 初始化所有參數
	{
		Music = new int[300];  // 初始共有 300 個關卡
		Input = new int[300];  // 初始共可以按 300 下
        level = 1;  // 初始從第一關開始
        score = 0;  // 初始分數為 0 分
        stage = 0;  // 初始都沒被 Touch 過
        myMediaPlayer = MediaPlayer.create(this, R.raw.piano_do);  // 初始播放器為沒有音樂播
		ScoreTextView.setText(String.valueOf(score));
        LevelTextView.setText(String.valueOf(level));
        InputTextView.setText(String.valueOf(stage));
	}

    public void RandMusic()  // 亂數產生音階順序
    {
    	for (int i=0 ; i<level ; i++)
    		Music[i] = (int)Math.ceil((Math.random()*4));
    }

    public void PlayMusic()  // 播放音階音樂
    {
    	MediaPlayer play = null;
    	for (int i=0 ; i<level ; i++)
    	{
    		if (Music[i] == 0)  // 當 Music[i] 裡沒有音階時不要播放
    			return;
    	    else if (Music[i] == 1)
    	    {
    	    	UpLeftButton.setBackgroundColor(0x99f0f000);
    			play = MediaPlayer.create(this, R.raw.piano_do);
    	    }
    		else if (Music[i] == 2)
    		{
    			UpRightButton.setBackgroundColor(0x9900f000);
    			play = MediaPlayer.create(this, R.raw.piano_re);
    		}
    		else if (Music[i] == 3)
    		{
    			DownLeftButton.setBackgroundColor(0x990000f0);
    			play = MediaPlayer.create(this, R.raw.piano_mi);
    		}
    		else if (Music[i] == 4)
    		{
    			DownRightButton.setBackgroundColor(0x99f00000);
    			play = MediaPlayer.create(this, R.raw.piano_fa);
    		}
    		play.start();  // 播放音樂
    		try
    		{
				Thread.sleep(1000);  // 讓時間 waiting 1 秒中
			}
    		catch (InterruptedException e)
			{
				Log.i("Info", e.toString());
			}
    		play.release();  // 釋放掉存在memory裡的檔案
    		SetBackground();
    	}
    }

    public void Match()  // 與 Answer 比對
    {
    	if (level != stage)  // 判斷按的次數是否有符合這麼多
    	{
    		Toast.makeText(this, "Not match step!!", Toast.LENGTH_SHORT).show();
    		return;
    	}
    	int gain = level;  // 這場所獲得的分數
    	for (int i=0 ; i<level ; i++)  // 比對 User 按的跟 Music 是否有 match
    		if (Music[i] != Input[i])  // 若不符合就扣分
    			gain--;
    	if (level > gain)  // 分數少於此關關卡，表示輸了這關，要重新開始
    	{
    		gain = 0;  // 沒過關為 0 分
    		Toast.makeText(this, "Wrong answer !! Please retry again...", Toast.LENGTH_SHORT).show();
    	}
    	else  // 表示過關，可以進入下一關
    	{
    		for (int i=0 ; i<level ; i++)  // Release 掉原本的音，不 Release 掉會發生 Check 過關後按 Repeat 會發生 crash 的狀況
    			Music[i] = 0;              // 會 crash 是因為進入 next level 按 Repeat 會有 MediaPlayer 沒有音可播，但又要 play 而造成
    		Toast.makeText(this, "Right , Go next level", Toast.LENGTH_SHORT).show();
    		level++;  // 進入下一個 level
    	}
    	Clear();  // 刷掉按過的記錄
    	UpdateScoreLevel(gain);  // 更新關卡及分數
    }

    public void Clear()  // 刷掉按過的記錄
    {
    	for (int i=0 ; i < stage ; i++)  // 把之前按過的記錄都清成 0
    		Input[i] = 0;
    	stage = 0;
    }

    public void SetBackground()  // 設定回原來的按鈕顏色
    {
    	UpLeftButton.setBackgroundColor(0xfff0f000);
    	UpRightButton.setBackgroundColor(0xff00f000);
    	DownLeftButton.setBackgroundColor(0xff0000f0);
    	DownRightButton.setBackgroundColor(0xfff00000);
    }

    private OnClickListener Button_Listener = new OnClickListener()  // Start Check Repeat Stop Button 的功能 Listener
    {
    	public void onClick(View v)
    	{
    		SetBackground();  // 設定 Do Re Mi Fa 回原色
    		switch (v.getId())
    		{
    			case R.id.start:
    				RandMusic();  // 亂數產生音階
    				PlayMusic();  // 播放音樂
    				break;
    			case R.id.check:
    				Match();  // 與 Answer 比對看有無錯誤
    				break;
    			case R.id.repeat:
    				PlayMusic();  // 播放音樂
    				break;
    			case R.id.clear:
    				Clear();  // 刷掉按過的記錄
    				UpdateScoreLevel(0);  // 更新 Touch 次數顯示
    				Toast.makeText(FollowMe.this, "Clear the touch...", Toast.LENGTH_SHORT).show();
    				break;
    		}
    	}
    };

    public void onClick(View v)  // 點擊 Do Re Mi Fa 的 Button 所回應的程式碼
    {
    	myMediaPlayer.release();  // 釋放掉存在memory裡的檔案
    	SetBackground();  // 設定 Do Re Mi Fa 回原色

    	switch (v.getId())
    	{
    		case R.id.upleft:
    			UpLeftButton.setBackgroundColor(0x99f0f000);
    			Input[stage] = 1;
    			myMediaPlayer = MediaPlayer.create(this, R.raw.piano_do);
    			break;
	    	case R.id.upright:
	    		UpRightButton.setBackgroundColor(0x9900f000);
	    		Input[stage] = 2;
    			myMediaPlayer = MediaPlayer.create(this, R.raw.piano_re);
	    		break;
	    	case R.id.downleft:
	    		DownLeftButton.setBackgroundColor(0x990000f0);
	    		Input[stage] = 3;
    			myMediaPlayer = MediaPlayer.create(this, R.raw.piano_mi);
	    		break;
	    	case R.id.downright:
	    		DownRightButton.setBackgroundColor(0x99f00000);
	    		Input[stage] = 4;
    			myMediaPlayer = MediaPlayer.create(this, R.raw.piano_fa);
	    		break;
    	}
    	myMediaPlayer.start();
    	stage++;  // 步驟數加一次
    	UpdateScoreLevel(0);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)  // 建立選單 Menu
    {
    	MenuInflater inflater = getMenuInflater();
    	inflater.inflate(R.menu.menu, menu);
    	return true;
    }

    public boolean onOptionsItemSelected(MenuItem item)  // 設定選單 Menu 的動作
    {
    	switch(item.getItemId())
    	{
    		case R.id.author:
    			AlertDialog.Builder ad = new AlertDialog.Builder(this);  // 宣告一個彈出視窗
    			ad.setTitle("About the Program");
    			ad.setMessage("Author : JR Jiang");
    			DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener()   // 彈出視窗的 Listener
    			{
					public void onClick(DialogInterface dialog, int i)  // 當按下時要執行的 Code
					{}
				};
				ad.setPositiveButton("OK", listener);  // 建立 Listener 去監聽 , 幫對話框加上一個按鈕
				ad.show();  // 把對話框顯示出來
    			break;
    		case R.id.restart:
    			Toast.makeText(this, "Already Start 1 Level",	Toast.LENGTH_LONG).show();
    			break;
    		case R.id.quit:
    			finish();  // 結束 Activity 這個頁面
    			break;
    	}
    	return super.onOptionsItemSelected(item);
    }
}