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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 Magic Cube. //
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// //
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// Magic Cube 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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// Magic Cube 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 Magic Cube. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.magic;
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import android.opengl.GLSurfaceView;
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import org.distorted.effect.BaseEffect;
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import org.distorted.library.effect.VertexEffectSink;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedLibrary;
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import org.distorted.library.main.DistortedScreen;
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import org.distorted.library.main.DistortedTexture;
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import org.distorted.library.mesh.MeshFlat;
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import org.distorted.library.message.EffectListener;
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import org.distorted.object.RubikCube;
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import org.distorted.object.RubikObject;
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import org.distorted.uistate.RubikState;
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import org.distorted.uistate.RubikStatePlay;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.opengles.GL10;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class RubikRenderer implements GLSurfaceView.Renderer, EffectListener
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{
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static final float CAMERA_DISTANCE = 0.6f; // 0.6 of the length of min(scrHeight,scrWidth)
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public static final int TEXTURE_SIZE = 600;
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private RubikSurfaceView mView;
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private DistortedScreen mScreen;
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private int mNextCubeSize, mScrambleCubeNum;
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private long mRotationFinishedID;
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private long[] mEffectID;
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private boolean mFinishRotation, mRemoveRotation, mSetQuatCurrent, mSetQuatAccumulated;
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private boolean mSizeChangeCube, mSolveCube, mScrambleCube;
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private boolean mCanRotate, mCanDrag, mCanUI;
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private boolean mIsSolved;
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private RubikCube mOldCube, mNewCube;
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private int mScreenWidth, mScreenHeight;
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private MeshFlat mMesh;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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RubikRenderer(RubikSurfaceView v)
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{
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mView = v;
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mScreen = new DistortedScreen();
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mOldCube = null;
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mNewCube = null;
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mScreenWidth = mScreenHeight = 0;
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mScrambleCubeNum = 0;
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mFinishRotation = false;
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mRemoveRotation = false;
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mSetQuatCurrent = false;
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mSetQuatAccumulated = false;
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mSizeChangeCube = true;
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mSolveCube = false;
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mScrambleCube = false;
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mCanRotate = true;
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mCanDrag = true;
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mCanUI = true;
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mEffectID = new long[BaseEffect.Type.LENGTH];
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mMesh= new MeshFlat(20,20);
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RubikStatePlay play = (RubikStatePlay) RubikState.PLAY.getStateClass();
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int size = play.getButton();
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mNextCubeSize = RubikObject.getObject(size).getObjectSize();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void createCubeNow(int newSize)
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{
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if( mOldCube!=null ) mOldCube.releaseResources();
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mOldCube = mNewCube;
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DistortedTexture texture = new DistortedTexture(TEXTURE_SIZE,TEXTURE_SIZE);
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DistortedEffects effects = new DistortedEffects();
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mNewCube = new RubikCube(newSize, mView.getQuatCurrent(), mView.getQuatAccumulated(), texture, mMesh, effects);
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mNewCube.createTexture();
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if( mScreenWidth!=0 )
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{
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mNewCube.recomputeScaleFactor(mScreenWidth, mScreenHeight);
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}
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mIsSolved = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// do all 'adjustable' effects (SizeChange, Solve, Scramble)
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private void doEffectNow(BaseEffect.Type type)
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{
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int index = type.ordinal();
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try
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{
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mEffectID[index] = type.startEffect(this);
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}
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catch( Exception ex )
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{
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android.util.Log.e("renderer", "exception starting effect: "+ex.getMessage());
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mCanUI = true;
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mCanRotate = true;
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mCanDrag = true;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// no this will not race with onDrawFrame
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void finishRotation()
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{
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mFinishRotation = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean createCube(int newSize)
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{
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if( mCanDrag && mCanRotate && (mNewCube==null || newSize != mNewCube.getSize()) )
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{
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mSizeChangeCube = true;
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mNextCubeSize = newSize;
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return true;
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}
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return false;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void scrambleCube(int num)
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{
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if( mCanUI )
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{
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mScrambleCube = true;
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mScrambleCubeNum = num;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void solveCube()
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{
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if( mCanUI )
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{
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mSolveCube = true;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean canRotate()
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{
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return mCanRotate;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean canDrag()
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{
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return mCanDrag;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void setQuatCurrentOnNextRender()
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{
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mSetQuatCurrent = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void setQuatAccumulatedOnNextRender()
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{
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mSetQuatAccumulated = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// various things are done here delayed, 'after the next render' as not to be done mid-render and
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// cause artifacts.
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@Override
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public void onDrawFrame(GL10 glUnused)
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{
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mScreen.render( System.currentTimeMillis() );
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if( mSetQuatCurrent )
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{
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mSetQuatCurrent = false;
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mView.setQuatCurrent();
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}
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if( mSetQuatAccumulated )
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{
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mSetQuatAccumulated = false;
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mView.setQuatAccumulated();
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}
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if( mFinishRotation )
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{
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mFinishRotation = false;
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mCanRotate = false;
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mCanUI = false;
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mRotationFinishedID = mNewCube.finishRotationNow(this);
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}
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if( mRemoveRotation )
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{
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mRemoveRotation=false;
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mNewCube.removeRotationNow();
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boolean solved = mNewCube.isSolved();
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if( solved && !mIsSolved )
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{
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mCanDrag = true;
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mCanRotate = false;
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mCanUI = false;
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doEffectNow( BaseEffect.Type.WIN );
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}
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else
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{
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mCanRotate = true;
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mCanUI = true;
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}
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mIsSolved = solved;
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}
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if( mSizeChangeCube )
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{
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mSizeChangeCube = false;
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mCanDrag = false;
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mCanRotate = false;
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mCanUI = false;
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createCubeNow(mNextCubeSize);
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doEffectNow( BaseEffect.Type.SIZECHANGE );
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}
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if( mSolveCube )
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{
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mSolveCube = false;
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mCanDrag = false;
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mCanRotate = false;
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mCanUI = false;
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doEffectNow( BaseEffect.Type.SOLVE );
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}
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if( mScrambleCube )
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{
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mScrambleCube = false;
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mCanDrag = false;
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mCanRotate = false;
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mCanUI = false;
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doEffectNow( BaseEffect.Type.SCRAMBLE );
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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@Override
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public void onSurfaceChanged(GL10 glUnused, int width, int height)
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{
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if( mNewCube!=null ) mNewCube.createTexture();
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double halfFOVInRadians = Math.atan( 1.0f/(2*CAMERA_DISTANCE) );
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float fovInDegrees = (float)(2*halfFOVInRadians*(180/Math.PI));
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mScreen.setProjection( fovInDegrees, 0.1f);
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mScreen.resize(width, height);
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mView.setScreenSize(width,height);
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if( mNewCube!=null )
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{
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mNewCube.recomputeScaleFactor(width,height);
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}
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mScreenHeight = height;
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mScreenWidth = width;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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@Override
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public void onSurfaceCreated(GL10 glUnused, EGLConfig config)
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{
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VertexEffectSink.enable();
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BaseEffect.Type.enableEffects();
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try
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{
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DistortedLibrary.onCreate(mView.getContext());
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}
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catch(Exception ex)
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{
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android.util.Log.e("Rubik", ex.getMessage() );
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void effectFinished(final long effectID)
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{
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if( effectID == mRotationFinishedID )
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{
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mRemoveRotation = true;
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}
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else
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{
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for(int i=0; i<BaseEffect.Type.LENGTH; i++)
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{
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if( effectID == mEffectID[i] )
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{
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mCanRotate = true;
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mCanDrag = true;
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mCanUI = true;
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if( i==BaseEffect.Type.SCRAMBLE.ordinal() )
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{
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final RubikActivity act = (RubikActivity)mView.getContext();
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act.runOnUiThread(new Runnable()
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{
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@Override
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public void run()
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{
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RubikState.switchState( act, RubikState.SOLV);
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}
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});
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}
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break;
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}
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public RubikCube getCube()
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{
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return mNewCube;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public RubikCube getOldCube()
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{
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return mOldCube;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public DistortedScreen getScreen()
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{
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return mScreen;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public int getNumScrambles()
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{
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return mScrambleCubeNum;
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}
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}
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