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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2019 Leszek Koltunski //
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// //
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Leszek Koltunski
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// This file is part of Magic Cube. //
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Leszek Koltunski
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// //
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Leszek Koltunski
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// Magic Cube is free software: you can redistribute it and/or modify //
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0c52af30
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Leszek Koltunski
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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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Leszek Koltunski
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// Magic Cube is distributed in the hope that it will be useful, //
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Leszek Koltunski
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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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Leszek Koltunski
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// along with Magic Cube. If not, see <http://www.gnu.org/licenses/>. //
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.magic;
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import android.app.ActivityManager;
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import android.content.Context;
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import android.content.pm.ConfigurationInfo;
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import android.graphics.PorterDuff;
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import android.graphics.drawable.Drawable;
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import android.opengl.GLSurfaceView;
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import android.support.v4.content.ContextCompat;
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import android.util.AttributeSet;
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import android.util.DisplayMetrics;
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import android.view.MotionEvent;
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import android.view.ViewGroup;
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import android.widget.Button;
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import android.widget.ImageButton;
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import android.widget.LinearLayout;
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import org.distorted.library.type.Static2D;
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Leszek Koltunski
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import org.distorted.library.type.Static4D;
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Leszek Koltunski
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import org.distorted.object.RubikCube;
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Leszek Koltunski
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import org.distorted.object.RubikCubeMovement;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class RubikSurfaceView extends GLSurfaceView
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{
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// Moving the finger from the middle of the vertical screen to the right edge will rotate a
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// given face by SWIPING_SENSITIVITY/2 degrees.
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private final static int SWIPING_SENSITIVITY = 240;
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// Moving the finger by 1/12 the distance of min(scrWidth,scrHeight) will start a Rotation.
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private final static int ROTATION_SENSITIVITY = 12;
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// Every 1/12 the distance of min(scrWidth,scrHeight) the direction of cube rotation will reset.
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private final static int DIRECTION_SENSITIVITY= 12;
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private final Static4D CAMERA_POINT = new Static4D(0, 0, RubikRenderer.CAMERA_DISTANCE, 0);
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private RubikRenderer mRenderer;
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private RubikCubeMovement mMovement;
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private boolean mInScrambleMode;
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private boolean mDragging, mBeginningRotation, mContinuingRotation;
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private float mX, mY;
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private int mScreenWidth, mScreenHeight, mScreenMin;
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private static int mButton = RubikSize.SIZE3.ordinal();
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private static Static4D mQuatCurrent = new Static4D(0,0,0,1);
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private static Static4D mQuatAccumulated= new Static4D(-0.25189602f,0.3546389f,0.009657208f,0.90038127f);
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private static Static4D mTempCurrent = new Static4D(0,0,0,1);
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private static Static4D mTempAccumulated= new Static4D(0,0,0,1);
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// return quat1*quat2
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public static Static4D quatMultiply( Static4D quat1, Static4D quat2 )
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{
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float qx = quat1.get1();
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float qy = quat1.get2();
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float qz = quat1.get3();
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float qw = quat1.get4();
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float rx = quat2.get1();
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float ry = quat2.get2();
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float rz = quat2.get3();
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float rw = quat2.get4();
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float tx = rw*qx - rz*qy + ry*qz + rx*qw;
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float ty = rw*qy + rz*qx + ry*qw - rx*qz;
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float tz = rw*qz + rz*qw - ry*qx + rx*qy;
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float tw = rw*qw - rz*qz - ry*qy - rx*qx;
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return new Static4D(tx,ty,tz,tw);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// rotate 'vector' by quat ( i.e. return quat*vector*(quat^-1) )
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public static Static4D rotateVectorByQuat(Static4D vector, Static4D quat)
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{
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float qx = quat.get1();
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float qy = quat.get2();
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float qz = quat.get3();
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float qw = quat.get4();
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Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);
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Static4D tmp = quatMultiply(quat,vector);
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return quatMultiply(tmp,quatInverted);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// rotate 'vector' by quat^(-1) ( i.e. return (quat^-1)*vector*quat )
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public static Static4D rotateVectorByInvertedQuat(Static4D vector, Static4D quat)
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{
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float qx = quat.get1();
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float qy = quat.get2();
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float qz = quat.get3();
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float qw = quat.get4();
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Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);
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Static4D tmp = quatMultiply(quatInverted,vector);
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return quatMultiply(tmp,quat);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void setScreenSize(int width, int height)
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{
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mScreenWidth = width;
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mScreenHeight= height;
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mScreenMin = width<height ? width:height;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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RubikRenderer getRenderer()
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{
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return mRenderer;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static int getRedButton()
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{
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return mButton;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void markButton(int button)
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{
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mButton = button;
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RubikActivity act = (RubikActivity)getContext();
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for(int b=0; b<RubikSize.LENGTH; b++)
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{
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Drawable d = act.findViewById(b).getBackground();
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if( b==button )
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{
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d.setColorFilter(ContextCompat.getColor(act,R.color.red), PorterDuff.Mode.MULTIPLY);
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}
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else
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{
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d.clearColorFilter();
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Leszek Koltunski
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void addSizeButtons(RubikActivity act)
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{
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LinearLayout layout = act.findViewById(R.id.sizeLayout);
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DisplayMetrics metrics = getResources().getDisplayMetrics();
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float scale = metrics.density;
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int size = (int)(64*scale +0.5f);
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int padding = (int)(3*scale + 0.5f);
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ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(size,size);
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for(int i=0; i<RubikSize.LENGTH; i++)
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{
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ImageButton button = new ImageButton(act);
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button.setLayoutParams(params);
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button.setId(i);
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button.setPadding(padding,0,padding,0);
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int iconID = RubikSize.getSize(i).getIconID();
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button.setImageResource(iconID);
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button.setOnClickListener(act);
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layout.addView(button);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Leszek Koltunski
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void enterScrambleMode()
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{
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| 200 |
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if( !mInScrambleMode )
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{
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mInScrambleMode = true;
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Leszek Koltunski
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android.util.Log.e("view", "entering scramble mode");
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RubikActivity act = (RubikActivity)getContext();
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Button scrambleButt = act.findViewById(R.id.rubikScramble);
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if( scrambleButt!=null )
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{
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scrambleButt.setClickable(false);
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scrambleButt.setVisibility(INVISIBLE);
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}
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else
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{
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android.util.Log.e("view", "button null!");
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void leaveScrambleMode()
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| 225 |
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{
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| 226 |
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if( mInScrambleMode )
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{
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mInScrambleMode = false;
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| 230 |
beb325a0
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android.util.Log.e("view", "leaving scramble mode");
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| 231 |
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| 232 |
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RubikActivity act = (RubikActivity)getContext();
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| 233 |
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Button scrambleButt = act.findViewById(R.id.rubikScramble);
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| 235 |
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| 236 |
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if( scrambleButt!=null )
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| 237 |
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{
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| 238 |
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scrambleButt.setClickable(true);
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scrambleButt.setVisibility(VISIBLE);
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| 240 |
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}
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| 241 |
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else
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| 242 |
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{
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| 243 |
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android.util.Log.e("view", "button null!");
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| 244 |
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}
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| 245 |
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Leszek Koltunski
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}
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| 246 |
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}
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| 247 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 250 |
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Leszek Koltunski
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void leaveScrambleModeNonUI()
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| 251 |
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{
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| 252 |
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RubikActivity act = (RubikActivity)getContext();
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| 253 |
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| 254 |
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act.runOnUiThread(new Runnable()
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| 255 |
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{
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| 256 |
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@Override
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| 257 |
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public void run()
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| 258 |
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{
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| 259 |
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leaveScrambleMode();
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| 260 |
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}
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| 261 |
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});
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| 262 |
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}
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| 263 |
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| 264 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 265 |
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| 266 |
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void setQuatAccumulated()
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| 267 |
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{
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| 268 |
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mQuatAccumulated.set(mTempAccumulated);
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| 269 |
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}
|
| 270 |
|
|
|
| 271 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 272 |
|
|
|
| 273 |
|
|
void setQuatCurrent()
|
| 274 |
|
|
{
|
| 275 |
|
|
mQuatCurrent.set(mTempCurrent);
|
| 276 |
|
|
}
|
| 277 |
|
|
|
| 278 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 279 |
|
|
|
| 280 |
|
|
Static4D getQuatAccumulated()
|
| 281 |
|
|
{
|
| 282 |
|
|
return mQuatAccumulated;
|
| 283 |
|
|
}
|
| 284 |
|
|
|
| 285 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 286 |
|
|
|
| 287 |
|
|
Static4D getQuatCurrent()
|
| 288 |
|
|
{
|
| 289 |
|
|
return mQuatCurrent;
|
| 290 |
|
|
}
|
| 291 |
|
|
|
| 292 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 293 |
|
|
|
| 294 |
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Leszek Koltunski
|
private Static4D quatFromDrag(float dragX, float dragY)
|
| 295 |
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|
Leszek Koltunski
|
{
|
| 296 |
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|
Leszek Koltunski
|
float axisX = dragY; // inverted X and Y - rotation axis is perpendicular to (dragX,dragY)
|
| 297 |
|
|
float axisY = dragX; // Why not (-dragY, dragX) ? because Y axis is also inverted!
|
| 298 |
|
|
float axisZ = 0;
|
| 299 |
|
|
float axisL = (float)Math.sqrt(axisX*axisX + axisY*axisY + axisZ*axisZ);
|
| 300 |
47ba5ddc
|
Leszek Koltunski
|
|
| 301 |
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|
Leszek Koltunski
|
if( axisL>0 )
|
| 302 |
|
|
{
|
| 303 |
|
|
axisX /= axisL;
|
| 304 |
|
|
axisY /= axisL;
|
| 305 |
|
|
axisZ /= axisL;
|
| 306 |
47ba5ddc
|
Leszek Koltunski
|
|
| 307 |
775e675d
|
Leszek Koltunski
|
float ratio = axisL;
|
| 308 |
beb325a0
|
Leszek Koltunski
|
ratio = ratio - (int)ratio; // the cos() is only valid in (0,Pi)
|
| 309 |
47ba5ddc
|
Leszek Koltunski
|
|
| 310 |
beb325a0
|
Leszek Koltunski
|
float cosA = (float)Math.cos(Math.PI*ratio);
|
| 311 |
|
|
float sinA = (float)Math.sqrt(1-cosA*cosA);
|
| 312 |
|
|
|
| 313 |
|
|
return new Static4D(axisX*sinA, axisY*sinA, axisZ*sinA, cosA);
|
| 314 |
|
|
}
|
| 315 |
|
|
|
| 316 |
|
|
return new Static4D(0f, 0f, 0f, 1f);
|
| 317 |
47ba5ddc
|
Leszek Koltunski
|
}
|
| 318 |
|
|
|
| 319 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 320 |
|
|
// PUBLIC API
|
| 321 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 322 |
|
|
|
| 323 |
|
|
public RubikSurfaceView(Context context, AttributeSet attrs)
|
| 324 |
|
|
{
|
| 325 |
|
|
super(context,attrs);
|
| 326 |
|
|
|
| 327 |
|
|
if(!isInEditMode())
|
| 328 |
|
|
{
|
| 329 |
beb325a0
|
Leszek Koltunski
|
mInScrambleMode = false;
|
| 330 |
47ba5ddc
|
Leszek Koltunski
|
mRenderer = new RubikRenderer(this);
|
| 331 |
775e675d
|
Leszek Koltunski
|
mMovement = new RubikCubeMovement();
|
| 332 |
47ba5ddc
|
Leszek Koltunski
|
|
| 333 |
|
|
final ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
|
| 334 |
|
|
final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();
|
| 335 |
|
|
setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );
|
| 336 |
|
|
setRenderer(mRenderer);
|
| 337 |
|
|
}
|
| 338 |
|
|
}
|
| 339 |
|
|
|
| 340 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 341 |
|
|
|
| 342 |
|
|
@Override
|
| 343 |
|
|
public boolean onTouchEvent(MotionEvent event)
|
| 344 |
|
|
{
|
| 345 |
|
|
int action = event.getAction();
|
| 346 |
775e675d
|
Leszek Koltunski
|
float x = (event.getX() - mScreenWidth*0.5f)/mScreenMin;
|
| 347 |
|
|
float y = (mScreenHeight*0.5f -event.getY())/mScreenMin;
|
| 348 |
47ba5ddc
|
Leszek Koltunski
|
|
| 349 |
|
|
switch(action)
|
| 350 |
|
|
{
|
| 351 |
|
|
case MotionEvent.ACTION_DOWN: mX = x;
|
| 352 |
|
|
mY = y;
|
| 353 |
|
|
|
| 354 |
86c73a69
|
Leszek Koltunski
|
Static4D touchPoint1 = new Static4D(x, y, 0, 0);
|
| 355 |
|
|
Static4D rotatedTouchPoint1= rotateVectorByInvertedQuat(touchPoint1, mQuatAccumulated);
|
| 356 |
|
|
Static4D rotatedCamera= rotateVectorByInvertedQuat(CAMERA_POINT, mQuatAccumulated);
|
| 357 |
|
|
|
| 358 |
|
|
if( mMovement.faceTouched(rotatedTouchPoint1, rotatedCamera) )
|
| 359 |
47ba5ddc
|
Leszek Koltunski
|
{
|
| 360 |
|
|
mDragging = false;
|
| 361 |
|
|
mBeginningRotation = mRenderer.canRotate();
|
| 362 |
|
|
mContinuingRotation = false;
|
| 363 |
|
|
}
|
| 364 |
|
|
else
|
| 365 |
|
|
{
|
| 366 |
|
|
mDragging = mRenderer.canDrag();
|
| 367 |
|
|
mBeginningRotation = false;
|
| 368 |
|
|
mContinuingRotation = false;
|
| 369 |
|
|
}
|
| 370 |
|
|
break;
|
| 371 |
|
|
case MotionEvent.ACTION_MOVE: if( mDragging )
|
| 372 |
|
|
{
|
| 373 |
c896c0b3
|
Leszek Koltunski
|
mTempCurrent.set(quatFromDrag(mX-x,y-mY));
|
| 374 |
47ba5ddc
|
Leszek Koltunski
|
mRenderer.setQuatCurrentOnNextRender();
|
| 375 |
|
|
|
| 376 |
775e675d
|
Leszek Koltunski
|
if( (mX-x)*(mX-x) + (mY-y)*(mY-y) > 1.0f/(DIRECTION_SENSITIVITY*DIRECTION_SENSITIVITY) )
|
| 377 |
47ba5ddc
|
Leszek Koltunski
|
{
|
| 378 |
|
|
mX = x;
|
| 379 |
|
|
mY = y;
|
| 380 |
|
|
mTempAccumulated.set(quatMultiply(mQuatCurrent, mQuatAccumulated));
|
| 381 |
|
|
mTempCurrent.set(0f, 0f, 0f, 1f);
|
| 382 |
|
|
mRenderer.setQuatCurrentOnNextRender();
|
| 383 |
|
|
mRenderer.setQuatAccumulatedOnNextRender();
|
| 384 |
|
|
}
|
| 385 |
|
|
}
|
| 386 |
|
|
if( mBeginningRotation )
|
| 387 |
|
|
{
|
| 388 |
775e675d
|
Leszek Koltunski
|
if( (mX-x)*(mX-x)+(mY-y)*(mY-y) > 1.0f/(ROTATION_SENSITIVITY*ROTATION_SENSITIVITY) )
|
| 389 |
47ba5ddc
|
Leszek Koltunski
|
{
|
| 390 |
86c73a69
|
Leszek Koltunski
|
Static4D touchPoint2 = new Static4D(x, y, 0, 0);
|
| 391 |
|
|
Static4D rotatedTouchPoint2= rotateVectorByInvertedQuat(touchPoint2, mQuatAccumulated);
|
| 392 |
|
|
|
| 393 |
|
|
Static2D rot = mMovement.newRotation(rotatedTouchPoint2);
|
| 394 |
775e675d
|
Leszek Koltunski
|
RubikCube cube = mRenderer.getCube();
|
| 395 |
|
|
|
| 396 |
|
|
cube.addNewRotation( (int)rot.get1(), (int)(cube.getSize()*rot.get2()) );
|
| 397 |
|
|
|
| 398 |
47ba5ddc
|
Leszek Koltunski
|
mBeginningRotation = false;
|
| 399 |
|
|
mContinuingRotation= true;
|
| 400 |
|
|
}
|
| 401 |
|
|
}
|
| 402 |
|
|
else if( mContinuingRotation )
|
| 403 |
|
|
{
|
| 404 |
86c73a69
|
Leszek Koltunski
|
Static4D touchPoint3 = new Static4D(x, y, 0, 0);
|
| 405 |
|
|
Static4D rotatedTouchPoint3= rotateVectorByInvertedQuat(touchPoint3, mQuatAccumulated);
|
| 406 |
|
|
|
| 407 |
|
|
float angle = mMovement.continueRotation(rotatedTouchPoint3);
|
| 408 |
775e675d
|
Leszek Koltunski
|
mRenderer.getCube().continueRotation(SWIPING_SENSITIVITY*angle);
|
| 409 |
47ba5ddc
|
Leszek Koltunski
|
}
|
| 410 |
|
|
break;
|
| 411 |
|
|
case MotionEvent.ACTION_UP : if( mDragging )
|
| 412 |
|
|
{
|
| 413 |
|
|
mTempAccumulated.set(quatMultiply(mQuatCurrent, mQuatAccumulated));
|
| 414 |
|
|
mTempCurrent.set(0f, 0f, 0f, 1f);
|
| 415 |
|
|
mRenderer.setQuatCurrentOnNextRender();
|
| 416 |
|
|
mRenderer.setQuatAccumulatedOnNextRender();
|
| 417 |
|
|
}
|
| 418 |
|
|
|
| 419 |
|
|
if( mContinuingRotation )
|
| 420 |
|
|
{
|
| 421 |
beb325a0
|
Leszek Koltunski
|
mRenderer.finishRotation();
|
| 422 |
47ba5ddc
|
Leszek Koltunski
|
}
|
| 423 |
|
|
break;
|
| 424 |
|
|
}
|
| 425 |
|
|
|
| 426 |
|
|
return true;
|
| 427 |
|
|
}
|
| 428 |
0c52af30
|
Leszek Koltunski
|
}
|