Magic Cube

        <activity android:name="org.distorted.tutorial.TutorialActivity" android:screenOrientation="portrait"/>

import android.content.Intent;

import org.distorted.tutorial.TutorialActivity;

        RubikActivity ract = (RubikActivity)getContext();

        Intent myIntent = new Intent(ract, TutorialActivity.class);

        //myIntent.putExtra("", value); //Optional parameters

        if( ract!=null ) ract.startActivity(myIntent);

    public long startEffect(DistortedScreen screen, EffectController cont) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException

      Method method2 = mClass.getDeclaredMethod("start", int.class, DistortedScreen.class, EffectController.class);

      Object value2 = method2.invoke(baseEffect,translated,screen,cont);

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

// 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.effects;

import org.distorted.library.message.EffectListener;

import org.distorted.main.RubikPreRender;

import org.distorted.objects.TwistyObject;

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

public interface EffectController extends EffectListener

  {

  void addRotation(RubikPreRender.ActionFinishedListener listener, int axis, int rowBitmap, int angle, long duration);

  TwistyObject getOldObject();

  TwistyObject getObject();

  int getNumScrambles();

  }

import org.distorted.effects.EffectController;

  private EffectController mController;

        case 1: mController.effectFinished(FAKE_EFFECT_ID);

  public long start(int duration, DistortedScreen screen, EffectController cont)

    mScreen    = screen;

    mObject[0] = cont.getOldObject();

    mObject[1] = cont.getObject();

    mController= cont;

    mDuration  = duration;

import org.distorted.effects.EffectController;

  private EffectController mController;

      mController.addRotation(this, mLastRotAxis, rowBitmap, angle*(360/mBasicAngle), durationMillis);

        mController.effectFinished(FAKE_EFFECT_ID);

            mController.effectFinished(FAKE_EFFECT_ID);

            mController.effectFinished(FAKE_EFFECT_ID);

  public long start(int duration, DistortedScreen screen, EffectController cont)

    mObject    = cont.getObject();

    mController= cont;

    int numScrambles = cont.getNumScrambles();

import org.distorted.effects.EffectController;

  private EffectController mController;

      case 1: mController.effectFinished(FAKE_EFFECT_ID);

  public long start(int duration, DistortedScreen screen, EffectController cont)

    mScreen    = screen;

    mObject    = cont.getObject();

    mController= cont;

    mDuration  = duration;

import org.distorted.effects.EffectController;

  private EffectController mController;

        if( ++mEffectReturned == total ) mController.effectFinished(FAKE_EFFECT_ID);

        if( ++mEffectReturned == total ) mController.effectFinished(FAKE_EFFECT_ID);

  public long start(int duration, DistortedScreen screen, EffectController cont)

    mScreen    = screen;

    mObject    = cont.getObject();

    mController= cont;

    mDuration  = duration;

import org.distorted.effects.EffectController;

public class RubikPreRender implements EffectController

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

// Copyright 2019 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.tutorial;

import android.os.Build;

import android.os.Bundle;

import android.util.DisplayMetrics;

import android.view.View;

import android.view.ViewGroup;

import android.view.WindowManager;

import android.webkit.WebView;

import android.widget.LinearLayout;

import androidx.appcompat.app.AppCompatActivity;

import com.google.firebase.analytics.FirebaseAnalytics;

import org.distorted.dialogs.RubikDialogError;

import org.distorted.main.R;

import org.distorted.objects.ObjectList;

import org.distorted.objects.TwistyObject;

import org.distorted.states.RubikStatePlay;

import org.distorted.states.StateList;

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

public class TutorialActivity extends AppCompatActivity

{

    public static final float DIALOG_BUTTON_SIZE  = 0.06f;

    public static final float MENU_BIG_TEXT_SIZE  = 0.05f;

    public static final int FLAGS =  View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION

                                   | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN

                                   | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION

                                   | View.SYSTEM_UI_FLAG_FULLSCREEN

                                   | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;

    public static final int FLAGS2=  View.SYSTEM_UI_FLAG_LAYOUT_STABLE

                                   | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;

    private boolean mIsLocked;

    private FirebaseAnalytics mFirebaseAnalytics;

    private static int mScreenWidth, mScreenHeight;

    private int mCurrentApiVersion;

    private WebView mWebView;

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

    @Override

    protected void onCreate(Bundle savedState)

      {

      super.onCreate(savedState);

      setTheme(R.style.CustomActivityThemeNoActionBar);

      setContentView(R.layout.tutorial);

      mIsLocked = false;

      mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);

      DisplayMetrics displaymetrics = new DisplayMetrics();

      getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);

      mScreenWidth =displaymetrics.widthPixels;

      mScreenHeight=displaymetrics.heightPixels;

      hideNavigationBar();

      cutoutHack();

      }

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

    private void hideNavigationBar()

      {

      mCurrentApiVersion = Build.VERSION.SDK_INT;

      if(mCurrentApiVersion >= Build.VERSION_CODES.KITKAT)

        {

        final View decorView = getWindow().getDecorView();

        decorView.setSystemUiVisibility(FLAGS);

        decorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener()

          {

          @Override

          public void onSystemUiVisibilityChange(int visibility)

            {

            if((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0)

              {

              decorView.setSystemUiVisibility(FLAGS);

              }

            }

          });

        }

      }

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

    @Override

    public void onAttachedToWindow()

      {

      super.onAttachedToWindow();

      final float RATIO = 0.10f;

      float width = getScreenWidthInPixels();

      LinearLayout layout = findViewById(R.id.rightBar);

      ViewGroup.LayoutParams params = layout.getLayoutParams();

      params.width = (int)(width*RATIO);

      layout.setLayoutParams(params);

      }

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

// do not avoid cutouts

    private void cutoutHack()

      {

      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P)

        {

        getWindow().getAttributes().layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;

        }

      }

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

    @Override

    public void onWindowFocusChanged(boolean hasFocus)

      {

      super.onWindowFocusChanged(hasFocus);

      if(mCurrentApiVersion >= Build.VERSION_CODES.KITKAT && hasFocus)

        {

        getWindow().getDecorView().setSystemUiVisibility(FLAGS);

        }

      }

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

    @Override

    protected void onPause() 

      {

      super.onPause();

      TutorialSurfaceView view = findViewById(R.id.tutorialSurfaceView);

      view.onPause();

      }

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

    @Override

    protected void onResume() 

      {

      super.onResume();

      TutorialSurfaceView view = findViewById(R.id.tutorialSurfaceView);

      view.onResume();

      view.initialize();

      boolean success = false;

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

      int object = play.getObject();

      int size   = play.getSize();

      if( object>=0 && object< ObjectList.NUM_OBJECTS )

        {

        ObjectList obj = ObjectList.getObject(object);

        int[] sizes = obj.getSizes();

        int sizeIndex = ObjectList.getSizeIndex(object,size);

        if( sizeIndex>=0 && sizeIndex<sizes.length )

          {

          success = true;

          view.getPreRender().changeObject(obj,size);

          }

        }

/*

      if( !success )

        {

        ObjectList obj = ObjectList.getObject(RubikStatePlay.DEF_OBJECT);

        int s = RubikStatePlay.DEF_SIZE;

        play.setObjectAndSize(this,obj,s);

        view.getPreRender().changeObject(obj,s);

        }

 */

      }

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

    @Override

    protected void onDestroy() 

      {

      super.onDestroy();

      }

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

    void OpenGLError()

      {

      RubikDialogError errDiag = new RubikDialogError();

      errDiag.show(getSupportFragmentManager(), null);

      }

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

// PUBLIC API

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

    public FirebaseAnalytics getAnalytics()

      {

      return mFirebaseAnalytics;

      }

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

    public TwistyObject getObject()

      {

      TutorialSurfaceView view = findViewById(R.id.rubikSurfaceView);

      TutorialPreRender pre = view.getPreRender();

      return pre.getObject();

      }

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

    public int getScreenWidthInPixels()

      {

      return mScreenWidth;

      }

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

    public int getScreenHeightInPixels()

      {

      return mScreenHeight;

      }

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

    public TutorialPreRender getPreRender()

      {

      TutorialSurfaceView view = findViewById(R.id.tutorialSurfaceView);

      return view.getPreRender();

      }

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

    public static int getDrawableSize()

      {

      if( mScreenHeight<1000 )

        {

        return 0;

        }

      if( mScreenHeight<1600 )

        {

        return 1;

        }

      if( mScreenHeight<1900 )

        {

        return 2;

        }

      return 3;

      }

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

    public static int getDrawable(int small, int medium, int big, int huge)

      {

      int size = getDrawableSize();

      switch(size)

        {

        case 0 : return small;

        case 1 : return medium;

        case 2 : return big;

        default: return huge;

        }

      }

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

    public boolean isVertical()

      {

      TutorialSurfaceView view = findViewById(R.id.tutorialSurfaceView);

      return view.isVertical();

      }

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

    public void toggleLock()

      {

      mIsLocked = !mIsLocked;

      }

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

    public boolean isLocked()

      {

      StateList state = StateList.getCurrentState();

      if( state== StateList.PLAY || state== StateList.READ || state== StateList.SOLV )

        {

        return mIsLocked;

        }

      return false;

      }

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

    public boolean retLocked()

      {

      return mIsLocked;

      }

}

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

// 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.tutorial;

import android.content.Context;

import android.content.res.Resources;

import org.distorted.effects.BaseEffect;

import org.distorted.effects.EffectController;

import org.distorted.objects.ObjectList;

import org.distorted.objects.TwistyObject;

import org.distorted.main.RubikPreRender.ActionFinishedListener;

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

public class TutorialPreRender implements EffectController

  {

  private ActionFinishedListener mAddActionListener;

  private TutorialSurfaceView mView;

  private boolean mFinishRotation, mRemoveRotation, mAddRotation,

                  mSetQuat, mChangeObject, mSetupObject, mSolveObject,

                  mInitializeObject, mResetAllTextureMaps, mRemovePatternRotation;

  private boolean mCanPlay;

  private boolean mIsSolved;

  private ObjectList mNextObject;

  private int mNextSize;

  private long mRotationFinishedID;

  private int mScreenWidth;

  private int[][] mNextMoves;

  private TwistyObject mOldObject, mNewObject;

  private int mAddRotationAxis, mAddRotationRowBitmap, mAddRotationAngle;

  private long mAddRotationDuration;

  private long mAddRotationID, mRemoveRotationID;

  private int mNearestAngle;

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

  TutorialPreRender(TutorialSurfaceView view)

    {

    mView = view;

    mFinishRotation = false;

    mRemoveRotation = false;

    mAddRotation    = false;

    mSetQuat        = false;

    mChangeObject   = false;

    mSetupObject    = false;

    mSolveObject    = false;

    mCanPlay        = true;

    mOldObject      = null;

    mNewObject      = null;

    mScreenWidth    = 0;

    mRemovePatternRotation= false;

    }

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

  private void createObjectNow(ObjectList object, int size, int[][] moves)

    {

    if( mOldObject!=null ) mOldObject.releaseResources();

    mOldObject = mNewObject;

    Context con = mView.getContext();

    Resources res = con.getResources();

    mNewObject = object.create(size, mView.getQuat(), moves, res, mScreenWidth);

    if( mNewObject!=null )

      {

      mNewObject.createTexture();

      mView.setMovement(object.getObjectMovementClass());

      if( mScreenWidth!=0 )

        {

        mNewObject.recomputeScaleFactor(mScreenWidth);

        }

      mIsSolved = mNewObject.isSolved();

      }

    }

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

  private void doEffectNow(BaseEffect.Type type)

    {

    try

      {

      type.startEffect(mView.getRenderer().getScreen(),this);

      }

    catch( Exception ex )

      {

      mCanPlay= true;

      }

    }

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

  private void removePatternRotation()

    {

    mRemovePatternRotation = true;

    }

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

  private void removePatternRotationNow()

    {

    mRemovePatternRotation=false;

    mNewObject.removeRotationNow();

    mAddActionListener.onActionFinished(mRemoveRotationID);

    }

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

  private void removeRotationNow()

    {

    mRemoveRotation=false;

    mNewObject.removeRotationNow();

    boolean solved = mNewObject.isSolved();

    if( solved && !mIsSolved )

      {

      doEffectNow( BaseEffect.Type.WIN );

      }

    else

      {

      mCanPlay = true;

      }

    mIsSolved = solved;

    }

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

  private void removeRotation()

    {

    mRemoveRotation = true;

    }

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

  private void addRotationNow()

    {

    mAddRotation = false;

    mAddRotationID = mNewObject.addNewRotation( mAddRotationAxis, mAddRotationRowBitmap,

                                                mAddRotationAngle, mAddRotationDuration, this);

    }

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

  private void finishRotationNow()

    {

    mFinishRotation = false;

    mCanPlay        = false;

    mRotationFinishedID = mNewObject.finishRotationNow(this, mNearestAngle);

    if( mRotationFinishedID==0 ) // failed to add effect - should never happen

      {

      mCanPlay   = true;

      }

    }

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

  private void changeObjectNow()

    {

    mChangeObject = false;

    if ( mNewObject==null || mNewObject.getObjectList()!=mNextObject || mNewObject.getNumLayers()!=mNextSize)

      {

      mCanPlay  = false;

      createObjectNow(mNextObject, mNextSize, null);

      doEffectNow( BaseEffect.Type.SIZECHANGE );

      }

    }

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

  private void setupObjectNow()

    {

    mSetupObject = false;

    if ( mNewObject==null || mNewObject.getObjectList()!=mNextObject || mNewObject.getNumLayers()!=mNextSize)

      {

      mCanPlay  = false;

      createObjectNow(mNextObject, mNextSize, mNextMoves);

      doEffectNow( BaseEffect.Type.SIZECHANGE );

      }

    else

      {

      mNewObject.initializeObject(mNextMoves);

      }

    }

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

  private void solveObjectNow()

    {

    mSolveObject = false;

    mCanPlay     = false;

    doEffectNow( BaseEffect.Type.SOLVE );

    }

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

  private void initializeObjectNow()

    {

    mInitializeObject = false;

    mNewObject.initializeObject(mNextMoves);

    }

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

  private void resetAllTextureMapsNow()

    {

    mResetAllTextureMaps = false;

    if( mNewObject!=null ) mNewObject.resetAllTextureMaps();

    }

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

  private void setQuatNow()

    {

    mSetQuat = false;

    mView.setQuat();

    }

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

//

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

  void setScreenSize(int width)

    {

    if( mNewObject!=null )

      {

      mNewObject.createTexture();

      mNewObject.recomputeScaleFactor(width);

      }

    mScreenWidth  = width;

    }

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

  void finishRotation(int nearestAngle)

    {

    mNearestAngle   = nearestAngle;

    mFinishRotation = true;

    }

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

  void changeObject(ObjectList object, int size)

    {

    if( size>0 )

      {

      mChangeObject = true;

      mNextObject = object;

      mNextSize   = size;

      }

    }

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

  void setQuatOnNextRender()

    {

    mSetQuat = true;

    }

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

  void preRender()

    {

    if( mSetQuat               ) setQuatNow();

    if( mFinishRotation        ) finishRotationNow();

    if( mRemoveRotation        ) removeRotationNow();

    if( mChangeObject          ) changeObjectNow();

    if( mSetupObject           ) setupObjectNow();

    if( mSolveObject           ) solveObjectNow();

    if( mAddRotation           ) addRotationNow();

    if( mInitializeObject      ) initializeObjectNow();

    if( mResetAllTextureMaps   ) resetAllTextureMapsNow();

    if( mRemovePatternRotation ) removePatternRotationNow();

    }

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

// PUBLIC API

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

  public void addRotation(ActionFinishedListener listener, int axis, int rowBitmap, int angle, long duration)

    {

    mAddRotation = true;

    mAddActionListener    = listener;

    mAddRotationAxis      = axis;

    mAddRotationRowBitmap = rowBitmap;

    mAddRotationAngle     = angle;

    mAddRotationDuration  = duration;

    }

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

  public void initializeObject(int[][] moves)

    {

    mInitializeObject = true;

    mNextMoves = moves;

    }

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

  public int getNumScrambles()

    {

    return 0;

    }

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

  public void solveObject()

    {

    if( mCanPlay )

      {

      mSolveObject = true;

      }

    }

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

  public void resetAllTextureMaps()

    {

    mResetAllTextureMaps = true;

    }

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

  public TwistyObject getObject()

    {

    return mNewObject;

    }

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

  public TwistyObject getOldObject()

    {

    return null;

    }

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

  public void effectFinished(final long effectID)

    {

    if( effectID == mRotationFinishedID )

      {

      mRotationFinishedID = 0;

      removeRotation();

      }

    else if( effectID == mAddRotationID )

      {

      mAddRotationID = 0;

      mRemoveRotationID = effectID;

      removePatternRotation();

      }

    else

      {

      mCanPlay   = true;

      }

    }

  }

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

// Copyright 2019 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.tutorial;

import android.opengl.GLSurfaceView;

import org.distorted.library.main.DistortedScreen;

import javax.microedition.khronos.egl.EGLConfig;

import javax.microedition.khronos.opengles.GL10;

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

public class TutorialRenderer implements GLSurfaceView.Renderer

{

   private TutorialSurfaceView mView;

   private DistortedScreen mScreen;

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

   TutorialRenderer(TutorialSurfaceView v)

     {

     final float BRIGHTNESS = 0.30f;

     mView = v;

     mScreen = new DistortedScreen();

     mScreen.glClearColor(BRIGHTNESS, BRIGHTNESS, BRIGHTNESS, 1.0f);

     }

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

   @Override

   public void onDrawFrame(GL10 glUnused)

     {

     long time = System.currentTimeMillis();

     mView.getPreRender().preRender();

     mScreen.render(time);

     }

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

   @Override

   public void onSurfaceChanged(GL10 glUnused, int width, int height)

      {

      mScreen.resize(width,height);

      mView.setScreenSize(width,height);

      mView.getPreRender().setScreenSize(width);

      }

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

   @Override

   public void onSurfaceCreated(GL10 glUnused, EGLConfig config)

      {

      }

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

   DistortedScreen getScreen()

     {

     return mScreen;

     }

}

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

// Copyright 2019 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.tutorial;

import android.app.ActivityManager;

import android.content.Context;

import android.content.pm.ConfigurationInfo;

import android.opengl.GLES30;

import android.opengl.GLSurfaceView;

import android.util.AttributeSet;

import android.util.DisplayMetrics;

import android.view.MotionEvent;

import com.google.firebase.crashlytics.FirebaseCrashlytics;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static4D;

import org.distorted.objects.Movement;

import org.distorted.objects.TwistyObject;

import org.distorted.states.RubikStateSolving;

import org.distorted.states.StateList;

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

public class TutorialSurfaceView extends GLSurfaceView

{

    private static final int NUM_SPEED_PROBES = 10;

    private static final int INVALID_POINTER_ID = -1;

    // Moving the finger from the middle of the vertical screen to the right edge will rotate a

    // given face by SWIPING_SENSITIVITY/2 degrees.

    private final static int SWIPING_SENSITIVITY  = 240;

    // Moving the finger by 0.3 of an inch will start a Rotation.

    private final static float ROTATION_SENSITIVITY = 0.3f;

    private final Static4D CAMERA_POINT = new Static4D(0, 0, 1, 0);

    private TutorialRenderer mRenderer;

    private TutorialPreRender mPreRender;

    private Movement mMovement;

    private boolean mDragging, mBeginningRotation, mContinuingRotation;

    private int mScreenWidth, mScreenHeight, mScreenMin;

    private float mRotAngle, mInitDistance;

    private int mPtrID1, mPtrID2;

    private float mX, mY;

    private float mStartRotX, mStartRotY;

    private float mAxisX, mAxisY;

    private float mRotationFactor;

    private int mCurrentAxis, mCurrentRow;

    private float mCurrentAngle, mCurrRotSpeed;

    private float[] mLastX;

    private float[] mLastY;

    private long[] mLastT;

    private int mFirstIndex, mLastIndex;

    private int mDensity;

    private static Static4D mQuat= new Static4D(-0.25189602f,0.3546389f,0.009657208f,0.90038127f);

    private static Static4D mTemp= new Static4D(0,0,0,1);

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

    void setScreenSize(int width, int height)

      {

      mScreenWidth = width;

      mScreenHeight= height;

      mScreenMin = Math.min(width, height);

      }

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

    boolean isVertical()

      {

      return mScreenHeight>mScreenWidth;

      }

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

    TutorialRenderer getRenderer()

      {

      return mRenderer;

      }

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

    TutorialPreRender getPreRender()

      {

      return mPreRender;

      }

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

    void setQuat()

      {

      mQuat.set(mTemp);

      }

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

    Static4D getQuat()

      {

      return mQuat;

      }

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

    void setMovement(Movement movement)

      {

      mMovement = movement;

      }

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

    private Static4D quatFromDrag(float dragX, float dragY)

      {

      float axisX = dragY;  // inverted X and Y - rotation axis is perpendicular to (dragX,dragY)

      float axisY = dragX;  // Why not (-dragY, dragX) ? because Y axis is also inverted!

      float axisZ = 0;

      float axisL = (float)Math.sqrt(axisX*axisX + axisY*axisY + axisZ*axisZ);

      if( axisL>0 )

        {

        axisX /= axisL;

        axisY /= axisL;

        axisZ /= axisL;

        float ratio = axisL;

        ratio = ratio - (int)ratio;     // the cos() is only valid in (0,Pi)

        float cosA = (float)Math.cos(Math.PI*ratio);

        float sinA = (float)Math.sqrt(1-cosA*cosA);

        return new Static4D(axisX*sinA, axisY*sinA, axisZ*sinA, cosA);

        }

      return new Static4D(0f, 0f, 0f, 1f);

      }

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

// cast the 3D axis we are currently rotating along (which is already casted to the surface of the

// currently touched face AND converted into a 4D vector - fourth 0) to a 2D in-screen-surface axis

    private void computeCurrentAxis(Static4D axis)

      {

      Static4D result = rotateVectorByQuat(axis, mQuat);

      mAxisX =result.get0();

      mAxisY =result.get1();

      float len = (float)Math.sqrt(mAxisX*mAxisX + mAxisY*mAxisY);

      mAxisX /= len;

      mAxisY /= len;

      }

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

// return quat1*quat2

    public static Static4D quatMultiply( Static4D quat1, Static4D quat2 )

      {

      float qx = quat1.get0();

      float qy = quat1.get1();

      float qz = quat1.get2();

      float qw = quat1.get3();

      float rx = quat2.get0();

      float ry = quat2.get1();

      float rz = quat2.get2();

      float rw = quat2.get3();

      float tx = rw*qx - rz*qy + ry*qz + rx*qw;

      float ty = rw*qy + rz*qx + ry*qw - rx*qz;

      float tz = rw*qz + rz*qw - ry*qx + rx*qy;

      float tw = rw*qw - rz*qz - ry*qy - rx*qx;

      return new Static4D(tx,ty,tz,tw);

      }

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

// rotate 'vector' by quat  ( i.e. return quat*vector*(quat^-1) )

    public static Static4D rotateVectorByQuat(Static4D vector, Static4D quat)

      {

      float qx = quat.get0();

      float qy = quat.get1();

      float qz = quat.get2();

      float qw = quat.get3();

      Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);

      Static4D tmp = quatMultiply(quat,vector);

      return quatMultiply(tmp,quatInverted);

      }

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

// rotate 'vector' by quat^(-1)  ( i.e. return (quat^-1)*vector*quat )

    public static Static4D rotateVectorByInvertedQuat(Static4D vector, Static4D quat)

      {

      float qx = quat.get0();

      float qy = quat.get1();

      float qz = quat.get2();

      float qw = quat.get3();

      Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);

      Static4D tmp = quatMultiply(quatInverted,vector);

      return quatMultiply(tmp,quat);

      }

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

    private void addSpeedProbe(float x, float y)

      {

      long currTime = System.currentTimeMillis();

      boolean theSame = mLastIndex==mFirstIndex;

      mLastIndex++;

      if( mLastIndex>=NUM_SPEED_PROBES ) mLastIndex=0;

      mLastT[mLastIndex] = currTime;

      mLastX[mLastIndex] = x;

      mLastY[mLastIndex] = y;

      if( mLastIndex==mFirstIndex)

        {

        mFirstIndex++;

        if( mFirstIndex>=NUM_SPEED_PROBES ) mFirstIndex=0;

        }

      if( theSame )

        {

        mLastT[mFirstIndex] = currTime;

        mLastX[mFirstIndex] = x;

        mLastY[mFirstIndex] = y;

        }

      }

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

    private void computeCurrentSpeedInInchesPerSecond()

      {

      long firstTime = mLastT[mFirstIndex];

      long lastTime  = mLastT[mLastIndex];

      float fX = mLastX[mFirstIndex];

      float fY = mLastY[mFirstIndex];

      float lX = mLastX[mLastIndex];

      float lY = mLastY[mLastIndex];

      long timeDiff = lastTime-firstTime;

      mLastIndex = 0;

      mFirstIndex= 0;

      mCurrRotSpeed = timeDiff>0 ? 1000*retFingerDragDistanceInInches(fX,fY,lX,lY)/timeDiff : 0;

      }

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

    private float retFingerDragDistanceInInches(float xFrom, float yFrom, float xTo, float yTo)

      {

      float xDist = mScreenWidth*(xFrom-xTo);

      float yDist = mScreenHeight*(yFrom-yTo);

      float distInPixels = (float)Math.sqrt(xDist*xDist + yDist*yDist);

      return distInPixels/mDensity;

      }

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

    private void setUpDragOrRotate(float x, float y)

      {

        Static4D touchPoint = new Static4D(x, y, 0, 0);

        Static4D rotatedTouchPoint= rotateVectorByInvertedQuat(touchPoint, mQuat);

        Static4D rotatedCamera= rotateVectorByInvertedQuat(CAMERA_POINT, mQuat);

        if( mMovement!=null && mMovement.faceTouched(rotatedTouchPoint,rotatedCamera) )

          {

          mDragging           = false;

          mContinuingRotation = false;

          mBeginningRotation  = true;

          }

        else

          {