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magiccube / src / main / java / org / distorted / effect / scramble / ScrambleEffect.java @ 64975793

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2019 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.effect.scramble;
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import org.distorted.effect.BaseEffect;
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import org.distorted.library.effect.Effect;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.message.EffectListener;
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import org.distorted.magic.RubikCube;
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import org.distorted.magic.RubikRenderer;
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import java.lang.reflect.Method;
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import java.util.Random;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public abstract class ScrambleEffect extends BaseEffect implements EffectListener
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{
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  public enum Type
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    {
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    NONE         (ScrambleEffectNone.class        ),
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    ROTATIONS    (ScrambleEffectRotations.class   ),
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    ;
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    final Class<? extends ScrambleEffect> effect;
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    Type(Class<? extends ScrambleEffect> effect)
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      {
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      this.effect= effect;
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      }
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    }
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  private static int NUM_EFFECTS = Type.values().length;
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  private static final int FAKE_EFFECT_ID  = -3;
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  private static final Type[] types;
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  static
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    {
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    int i=0;
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    types = new Type[NUM_EFFECTS];
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    for(Type type: Type.values())
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      {
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      types[i++] = type;
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      }
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    }
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  private EffectListener mListener;
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  private int mEffectReturned;
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  private long mCurrentBaseEffectID;
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  private int mNumDoubleScramblesLeft, mNumScramblesLeft;
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  private int mLastVector;
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  private long mDurationSingleTurn;
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  private Random mRnd;
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  private RubikCube mCube;
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  Effect[] mNodeEffects;
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  int[] mNodeEffectPosition;
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  Effect[] mCubeEffects;
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  int[] mCubeEffectPosition;
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  int mCubeEffectNumber, mNodeEffectNumber;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  ScrambleEffect()
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    {
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    mRnd = new Random( System.currentTimeMillis() );
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    mLastVector = -1;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static String[] getNames()
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    {
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    String[] names = new String[NUM_EFFECTS];
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    for( int i=0; i<NUM_EFFECTS; i++)
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      {
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      names[i] = types[i].name();
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      }
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    return names;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public static ScrambleEffect create(int ordinal) throws InstantiationException, IllegalAccessException
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    {
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    return types[ordinal].effect.newInstance();
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  abstract void createEffects(int duration);
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  abstract void effectFinishedPlugin(final long effectID);
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void createBaseEffects(int duration, int numScrambles)
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    {
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    mNumScramblesLeft = numScrambles;
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    // compute how many out of 'numScrambles' are double turns.
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    mNumDoubleScramblesLeft=0;
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    for(int i=0; i<numScrambles; i++)
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      {
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      if( (mRnd.nextInt() % 3) == 0 )
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        {
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        mNumDoubleScramblesLeft++;
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        }
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      }
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    mDurationSingleTurn = duration/(mNumScramblesLeft+mNumDoubleScramblesLeft);
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    addNewScramble();
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void addNewScramble()
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    {
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    if( mNumScramblesLeft>0 )
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      {
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      if( mLastVector == -1 )
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        {
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        switch(mRnd.nextInt(3))
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          {
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          case 0: mLastVector = RubikCube.VECTX; break;
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          case 1: mLastVector = RubikCube.VECTY; break;
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          case 2: mLastVector = RubikCube.VECTZ; break;
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          }
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        }
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      else
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        {
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        int newVector = mRnd.nextInt(2);
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        switch(mLastVector)
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          {
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          case RubikCube.VECTX: mLastVector = (newVector==0 ? RubikCube.VECTY: RubikCube.VECTZ); break;
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          case RubikCube.VECTY: mLastVector = (newVector==0 ? RubikCube.VECTX: RubikCube.VECTZ); break;
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          case RubikCube.VECTZ: mLastVector = (newVector==0 ? RubikCube.VECTX: RubikCube.VECTY); break;
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          }
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        }
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      int row  = mRnd.nextInt(mCube.getSize());
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      int angle= randomizeAngle();
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      int absAngle = (angle<0 ? -angle : angle);
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      long durationMillis =  absAngle*mDurationSingleTurn;
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      mNumScramblesLeft--;
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      if( absAngle==2 ) mNumDoubleScramblesLeft--;
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      if( mNumScramblesLeft==0 && mNumDoubleScramblesLeft!=0 )
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        {
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        android.util.Log.e("effect", "ERROR: "+mNumDoubleScramblesLeft);
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        }
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      mCurrentBaseEffectID = mCube.addNewRotation(mLastVector, row, angle*90, durationMillis, this );
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      }
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    else
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      {
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      mLastVector = -1;
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      if( mEffectReturned == mCubeEffectNumber+mNodeEffectNumber )
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        {
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        mListener.effectFinished(FAKE_EFFECT_ID);
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        }
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private int randomizeAngle()
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    {
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    int random = mRnd.nextInt(mNumScramblesLeft);
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    int result = random<mNumDoubleScramblesLeft ? 2:1;
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    int sign   = mRnd.nextInt(2);
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    return sign==0 ? result : -result;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void effectFinished(final long effectID)
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    {
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    if( effectID == mCurrentBaseEffectID )
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      {
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      mCube.removeRotationNow();
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      addNewScramble();
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      return;
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      }
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    for(int i=0; i<mCubeEffectNumber; i++)
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      {
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      long id = mCubeEffects[i].getID();
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      if( effectID == id )
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        {
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        mEffectReturned++;
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        effectFinishedPlugin(effectID);
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        if( mEffectReturned == mCubeEffectNumber+mNodeEffectNumber )
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          {
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          disassignEffects();
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          if( mNumScramblesLeft==0 )
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            {
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            mListener.effectFinished(FAKE_EFFECT_ID);
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            }
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          }
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        return;
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        }
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      }
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    for(int i=0; i<mNodeEffectNumber; i++)
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      {
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      long id = mNodeEffects[i].getID();
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      if( effectID == id )
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        {
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        mEffectReturned++;
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        effectFinishedPlugin(effectID);
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        if( mEffectReturned == mCubeEffectNumber+mNodeEffectNumber )
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          {
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          disassignEffects();
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          if( mNumScramblesLeft==0 )
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            {
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            mListener.effectFinished(FAKE_EFFECT_ID);
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            }
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          }
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        return;
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        }
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public long start(int duration, RubikRenderer renderer)
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    {
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    mCube     = renderer.getCube();
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    mListener = renderer;
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    int numScrambles = renderer.getNumScrambles();
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    createBaseEffects(numScrambles*duration, numScrambles);
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    createEffects(numScrambles*duration);
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    if( mCubeEffectNumber==0 && mNodeEffectNumber==0 )
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      {
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      throw new RuntimeException("Cube and Node Plugin Effects not created!");
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      }
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    assignEffects();
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    return FAKE_EFFECT_ID;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void assignEffects()
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    {
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    for(int i=0; i<mCubeEffectNumber; i++)
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      {
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      mCube.apply(mCubeEffects[i],mCubeEffectPosition[i]);
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      mCubeEffects[i].notifyWhenFinished(this);
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      }
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    DistortedEffects nodeEffects = mCube.getEffects();
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    for(int i=0; i<mNodeEffectNumber; i++)
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      {
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      nodeEffects.apply(mNodeEffects[i],mNodeEffectPosition[i]);
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      mNodeEffects[i].notifyWhenFinished(this);
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void disassignEffects()
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    {
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    for(int i=0; i<mCubeEffectNumber; i++)
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      {
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      mCube.remove(mCubeEffects[i].getID());
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      }
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    DistortedEffects nodeEffects = mCube.getEffects();
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    for(int i=0; i<mNodeEffectNumber; i++)
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      {
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      nodeEffects.abortById(mNodeEffects[i].getID());
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  @SuppressWarnings("unused")
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  public static void enableEffects()
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    {
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    Method method;
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    for(Type type: Type.values())
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      {
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      try
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        {
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        method = type.effect.getDeclaredMethod("enable"); // enable not public, thus getDeclaredMethod
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        }
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      catch(NoSuchMethodException ex)
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        {
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        android.util.Log.e("ScrambleEffect", type.effect.getSimpleName()+": exception getting method: "+ex.getMessage());
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        method = null;
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        }
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      try
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        {
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        if( method!=null ) method.invoke(null);
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        }
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      catch(Exception ex)
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        {
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        android.util.Log.e("ScrambleEffect", type.effect.getSimpleName()+": exception invoking method: "+ex.getMessage());
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        }
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      }
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    }
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}