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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2021 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.control;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import org.distorted.library.effect.MatrixEffectQuaternion;
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import org.distorted.library.effect.MatrixEffectScale;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedNode;
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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.MeshQuad;
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import org.distorted.library.message.EffectListener;
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import org.distorted.library.type.Dynamic;
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import org.distorted.library.type.Dynamic3D;
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import org.distorted.library.type.Dynamic4D;
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import org.distorted.library.type.Static3D;
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import org.distorted.library.type.Static4D;
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import org.distorted.objectlib.main.TwistyObject;
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import org.distorted.objectlib.main.QuatHelper;
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import org.distorted.main.R;
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import org.distorted.main.RubikActivity;
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import java.io.IOException;
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import java.io.InputStream;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class RubikControlRotate implements EffectListener
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{
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private static final int NUM_SCREEN = 0;
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private static final int NUM_OBJECT = 1;
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private static Static4D INIT_QUAT;
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private final RubikControl mControl;
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private DistortedEffects[] mScreenEffects, mObjectEffects;
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private DistortedNode[] mScreenNodes, mObjectNodes;
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private long mScreenEffectID, mObjectEffectID, mCubeEffectID;
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private Static4D mObjRotQuat;
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private Dynamic3D mDynamic3;
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private Dynamic4D mDynamic4;
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private MatrixEffectScale mScale;
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private MatrixEffectQuaternion mQuaternion;
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private MeshQuad mScreenQuad, mObjectQuad;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private Bitmap openBitmap(RubikActivity act, int resource)
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{
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try( InputStream is = act.getResources().openRawResource(resource) )
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{
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return BitmapFactory.decodeStream(is);
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}
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catch( IOException e )
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{
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// ignore
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}
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return null;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void computeInitQuat()
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{
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double alphaZ = 0;//-Math.PI* 0.1250f;
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double alphaY = 0;//-Math.PI* 0.0625f;
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alphaY /= 2;
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alphaZ /= 2;
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float sinZ = (float)Math.sin(alphaZ);
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float cosZ = (float)Math.cos(alphaZ);
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float sinY = (float)Math.sin(alphaY);
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float cosY = (float)Math.cos(alphaY);
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Static4D qZ = new Static4D(0,0,sinZ,cosZ);
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Static4D qY = new Static4D(0,sinY,0,cosY);
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INIT_QUAT = QuatHelper.quatMultiply(qY,qZ);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Take 3D vector 'ax', rotate it by quaternion 'objQuat' to get vector V1.
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// Take 3D vector (1,0,0) and rotate it by INIT_QUAT to get vector V2.
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// Return a quaternion Q such that if we rotate V1 by Q, we get V2.
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private Static4D computeQuat(Static3D ax, Static4D objQuat, float x, float y, float z)
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{
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Static4D ax4D = new Static4D( ax.get0(), ax.get1(), ax.get2(), 0);
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Static4D axRo = QuatHelper.rotateVectorByQuat(ax4D,objQuat);
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return QuatHelper.retRotationQuat(axRo.get0(),axRo.get1(),axRo.get2(),x,y,z);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void computeRotQuat()
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{
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TwistyObject object = mControl.getObject();
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Static3D[] axis = object.getRotationAxis();
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int chosen=-1,numAxis = axis.length;
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float cos,maxCos = -1.0f;
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Static4D quat;
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Static4D objCurrQuat = mControl.getCurrQuat();
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Static4D axisX = new Static4D(1,0,0,0);
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Static4D rotAxisX = QuatHelper.rotateVectorByQuat(axisX,INIT_QUAT);
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float axX = rotAxisX.get0();
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float axY = rotAxisX.get1();
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float axZ = rotAxisX.get2();
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for (int a=0; a<numAxis; a++)
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{
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quat = computeQuat(axis[a],objCurrQuat,axX,axY,axZ);
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cos = quat.get3();
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android.util.Log.e("D", "axis="+a+" "+quat.get0()+" "+quat.get1()+" "+quat.get2()+" "+quat.get3() );
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if (cos > maxCos)
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{
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maxCos = cos;
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chosen = a;
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if( mObjRotQuat==null ) mObjRotQuat = new Static4D(quat);
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else mObjRotQuat.set(quat);
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}
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}
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android.util.Log.e("D", "axis chosen: "+chosen);
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android.util.Log.e("D", mObjRotQuat.get0()+" "+mObjRotQuat.get1()+" "+mObjRotQuat.get2()+" "+mObjRotQuat.get3() );
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void setScreenEffectsStage1()
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{
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mDynamic3.resetToBeginning();
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mScale.notifyWhenFinished(mControl);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// the whole cube rotates so that its axis is alignled according to the Euler angles defined in
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// computeInitQuat()
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private void setObjectEffectsStage1()
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{
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TwistyObject obj = mControl.getObject();
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obj.apply(mQuaternion,0);
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mDynamic4.resetToBeginning();
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mQuaternion.notifyWhenFinished(this);
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Static4D d = mDynamic4.getPoint(1);
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android.util.Log.e("D", "set: "+d.get0()+" "+d.get1()+" "+d.get2()+" "+d.get3() );
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void setObjectEffectsStage2()
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{
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void createScreenEffects()
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{
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mScreenEffects = new DistortedEffects[NUM_SCREEN];
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mScreenEffects[0]= new DistortedEffects();
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DistortedScreen screen = mControl.getScreen();
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int wid = screen.getWidth();
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Static3D scaleStart= new Static3D(1,1,1);
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Static3D scaleEnd = new Static3D(wid,wid,wid);
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mDynamic3 = new Dynamic3D(10000,0.5f);
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mDynamic3.add(scaleStart);
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mDynamic3.add(scaleEnd );
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mDynamic3.add(scaleStart);
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mDynamic3.setMode(Dynamic.MODE_PATH);
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mScale = new MatrixEffectScale(mDynamic3);
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mScreenEffectID = mScale.getID();
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mScreenEffects[0].apply(mScale);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void createObjectEffects()
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{
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mObjectEffects = new DistortedEffects[NUM_OBJECT];
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mObjectEffects[0]= new DistortedEffects();
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mDynamic4 = new Dynamic4D(5000,0.5f);
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mDynamic4.add(new Static4D(0,0,0,1));
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mDynamic4.add(mObjRotQuat);
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mDynamic4.add(mObjRotQuat);
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mDynamic4.add(mObjRotQuat);
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mDynamic4.setMode(Dynamic.MODE_PATH);
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android.util.Log.e("D", "create: "+mObjRotQuat.get0()+" "+mObjRotQuat.get1()+" "+mObjRotQuat.get2()+" "+mObjRotQuat.get3() );
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TwistyObject obj = mControl.getObject();
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Static3D ax = obj.getRotationAxis()[0];
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Static4D axis = new Static4D(ax.get0(), ax.get1(), ax.get2(), 0);
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Static4D v1 = QuatHelper.rotateVectorByQuat( new Static4D(1,0,0,0), INIT_QUAT);
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Static4D v2 = QuatHelper.rotateVectorByQuat( axis , mObjRotQuat);
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android.util.Log.e("D", "v1: "+v1.get0()+" "+v1.get1()+" "+v1.get2()+" "+v1.get3());
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android.util.Log.e("D", "v2: "+v2.get0()+" "+v2.get1()+" "+v2.get2()+" "+v2.get3());
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android.util.Log.e("D", "ax: "+ax.get0()+" "+ax.get1()+" "+ax.get2());
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Static3D center = new Static3D(0,0,0);
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mQuaternion = new MatrixEffectQuaternion(mDynamic4, center);
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mCubeEffectID = mQuaternion.getID();
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DistortedScreen screen = mControl.getScreen();
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int wid = screen.getWidth();
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Static3D scaleFactor = new Static3D(wid,wid*0.1f,10);
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MatrixEffectScale scale = new MatrixEffectScale(scaleFactor);
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MatrixEffectQuaternion quat = new MatrixEffectQuaternion(INIT_QUAT,center);
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mObjectEffects[0].apply(scale);
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mObjectEffects[0].apply(quat);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void createScreenNodes()
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{
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if( mScreenNodes==null )
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{
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mScreenNodes= new DistortedNode[NUM_SCREEN];
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mScreenQuad = new MeshQuad();
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}
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DistortedTexture texture = new DistortedTexture();
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texture.setColorARGB(0xff00ff00);
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mScreenNodes[0] = new DistortedNode(texture, mScreenEffects[0], mScreenQuad);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void createObjectNodes()
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{
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if( mObjectNodes==null )
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{
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mObjectNodes= new DistortedNode[NUM_OBJECT];
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mObjectQuad = new MeshQuad();
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}
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RubikActivity act = mControl.getActivity();
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if( act!=null )
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{
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Bitmap bmpArrow = openBitmap(act, R.drawable.ui_axis_arrow);
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DistortedTexture textureArrow = new DistortedTexture();
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if( bmpArrow!=null ) textureArrow.setTexture(bmpArrow);
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mObjectNodes[0] = new DistortedNode(textureArrow, mObjectEffects[0], mObjectQuad);
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}
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else
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{
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android.util.Log.e("D", "Activity NULL!!");
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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long getEffectID()
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{
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return mObjectEffectID;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DistortedNode[] getScreenNodes()
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{
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if( NUM_SCREEN>0 )
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{
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if( mScreenEffects==null ) createScreenEffects();
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createScreenNodes();
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setScreenEffectsStage1();
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}
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return mScreenNodes;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DistortedNode[] returnScreenNodes()
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{
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return mScreenNodes;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DistortedNode[] getObjectNodes()
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{
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if( NUM_OBJECT>0 )
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{
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if( INIT_QUAT==null ) computeInitQuat();
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computeRotQuat();
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if( mObjectEffects==null ) createObjectEffects();
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createObjectNodes();
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setObjectEffectsStage1();
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}
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return mObjectNodes;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DistortedNode[] returnObjectNodes()
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{
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return mObjectNodes;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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RubikControlRotate(RubikControl control)
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{
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mControl = control;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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@Override
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public void effectFinished(long effectID)
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{
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if( effectID==mCubeEffectID)
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{
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setObjectEffectsStage2();
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TwistyObject obj = mControl.getObject();
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obj.remove(mCubeEffectID);
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mObjectEffectID = -1;
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mControl.effectFinished(mObjectEffectID);
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}
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}
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}
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