Magic Cube

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is free software: you can redistribute it and/or modify                            //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Magic Cube is distributed in the hope that it will be useful,                                 //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.uistate;

import android.content.SharedPreferences;

import android.util.DisplayMetrics;

import android.view.LayoutInflater;

import android.widget.Button;

import android.widget.LinearLayout;

import android.widget.TextView;

import org.distorted.magic.R;

import org.distorted.magic.RubikActivity;

import org.distorted.object.RubikObjectList;

import java.util.Timer;

import java.util.TimerTask;

import static android.view.View.INVISIBLE;

import static org.distorted.object.RubikObjectList.NUM_OBJECTS;

import static org.distorted.object.RubikObjectList.MAX_SIZE;

import static org.distorted.uistate.RubikStatePlay.MAX_SCRAMBLE;

///////////////////////////////////////////////////////////////////////////////////////////////////

public class RubikStateSolving extends RubikStateAbstract

  {

  private static final long NO_RECORD = Integer.MAX_VALUE;

  private TextView mTime;

  private Timer mTimer;

  private long mStartTime;

  private boolean mRunning;

  private long[][][] mRecords;

///////////////////////////////////////////////////////////////////////////////////////////////////

  RubikStateSolving()

    {

    mRecords = new long[NUM_OBJECTS][MAX_SIZE][MAX_SCRAMBLE];

    for(int i=0; i<NUM_OBJECTS; i++)

      for(int j=0; j<MAX_SIZE; j++)

        for(int k=0; k<MAX_SCRAMBLE; k++)

          {

          mRecords[i][j][k] = NO_RECORD;

          }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  void leaveState(RubikActivity act)

    {

    stopCounting();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  void enterState(RubikActivity act)

    {

    LayoutInflater inflater = act.getLayoutInflater();

    // TOP ////////////////////////////

    LinearLayout layoutTop = act.findViewById(R.id.mainTitle);

    layoutTop.removeAllViews();

    mTime = (TextView)inflater.inflate(R.layout.upper_text, null);

    mTime.setText(R.string.ready);

    layoutTop.addView(mTime);

    // BOT ////////////////////////////

    LinearLayout layoutBot = act.findViewById(R.id.mainBar);

    layoutBot.removeAllViews();

    DisplayMetrics metrics = act.getResources().getDisplayMetrics();

    float scale = metrics.density;

    int size = (int)(60*scale +0.5f);

    int padding = (int)(5*scale + 0.5f);

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,size,0.5f);

    Button buttonL = new Button(act);

    buttonL.setLayoutParams(params);

    buttonL.setId(BUTTON_ID_BACK);

    buttonL.setPadding(padding,0,padding,0);

    buttonL.setText(R.string.back);

    buttonL.setOnClickListener(act);

    layoutBot.addView(buttonL);

    Button buttonR = new Button(act);

    buttonR.setLayoutParams(params);

    buttonR.setId(BUTTON_ID_BACK);

    buttonR.setPadding(padding,0,padding,0);

    buttonR.setText(R.string.back);

    buttonR.setOnClickListener(act);

    layoutBot.addView(buttonR);

    buttonL.setVisibility(INVISIBLE);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void savePreferences(SharedPreferences.Editor editor)

    {

    StringBuilder builder = new StringBuilder();

    RubikObjectList list;

    int[] sizes;

    int length;

    for(int scramble=0; scramble<MAX_SCRAMBLE; scramble++)

      {

      builder.setLength(0);

      for(int object=0; object<NUM_OBJECTS; object++)

        {

        list = RubikObjectList.getObject(object);

        sizes = list.getSizes();

        length = sizes.length;

        for(int size=0; size<length; size++)

          {

          builder.append(list.name());

          builder.append("_");

          builder.append(sizes[size]);

          builder.append("=");

          builder.append(mRecords[object][size][scramble]);

          builder.append(" ");

          }

        }

      editor.putString("record"+scramble, builder.toString());

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void restorePreferences(SharedPreferences preferences)

    {

    String recordStr, subStr, nameStr, sizeStr, timeStr;

    int start, end, equals, underscore;

    int object, size, time;

    for(int scramble=0; scramble<MAX_SCRAMBLE; scramble++)

      {

      start = end = 0;

      recordStr = preferences.getString("record"+scramble, "");

      //android.util.Log.e("solving", scramble+" record string: "+recordStr);

      while( end!=-1 )

        {

        end = recordStr.indexOf(" ", start);

        if( end==-1 ) subStr = recordStr.substring(start);

        else          subStr = recordStr.substring(start,end);

        start = end+1;

        underscore = subStr.indexOf("_");

        equals = subStr.indexOf("=");

        if( underscore>=0 && equals>=0 )

          {

          nameStr = subStr.substring(0,underscore);

          sizeStr = subStr.substring(underscore+1, equals);

          timeStr = subStr.substring(equals+1);

          object = RubikObjectList.getOrdinal(nameStr);

          size   = RubikObjectList.getSize(object,Integer.parseInt(sizeStr));

          time   = Integer.parseInt(timeStr);

          if( object>=0 && object< NUM_OBJECTS && size>=0 && size<MAX_SIZE )

            {

            mRecords[object][size][scramble] = time;

            if( time<Integer.MAX_VALUE )

              {

              android.util.Log.e("solv", "Set record for: object="+object+" size="+size+" scramble="+scramble+" time: "+time);

              }

            }

          else

            {

            android.util.Log.e("solv", "error: object="+object+" size="+size);

            }

          }

        }

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void startCounting(final RubikActivity act)

    {

    if( !mRunning )

      {

      mRunning = true;

      mStartTime = System.currentTimeMillis();

      mTimer = new Timer();

      mTimer.scheduleAtFixedRate(new TimerTask()

        {

        @Override

        public void run()

          {

          act.runOnUiThread(new Runnable()

            {

            @Override

            public void run()

              {

              int elapsed = (int)(System.currentTimeMillis()-mStartTime)/1000;

              mTime.setText(act.getString(R.string.tm_placeholder,elapsed/60,elapsed%60));

              }

            });

          }

        }, 0, 1000);

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public long stopCounting()

    {

    if( mRunning )

      {

      if( mTimer!=null )

        {

        mTimer.cancel();

        mTimer = null;

        }

      mRunning = false;

      long timeTaken = System.currentTimeMillis()-mStartTime;

      RubikStatePlay play = (RubikStatePlay)RubikState.PLAY.getStateClass();

      int object  = play.getObject();

      int size    = play.getSize();

      int scramble= play.getPicker();

      int maxsize = RubikObjectList.getObject(object).getSizes().length;

      if( object>=0 && object<NUM_OBJECTS && size>=0 && size<maxsize && scramble>=1 && scramble<=MAX_SCRAMBLE )

        {

        if( mRecords[object][size][scramble-1]> timeTaken )

          {

          mRecords[object][size][scramble-1] = timeTaken;

          android.util.Log.e("solv","new record!");

          }

        }

      return timeTaken;

      }

    return 0;

    }

  }