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880beeea
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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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// 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.objectlib.main;
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import java.lang.ref.WeakReference;
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import android.util.DisplayMetrics;
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import android.view.MotionEvent;
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import org.distorted.library.main.QuatHelper;
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import org.distorted.library.type.Static2D;
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import org.distorted.library.type.Static4D;
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import org.distorted.objectlib.helpers.ObjectStateActioner;
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import org.distorted.objectlib.helpers.ObjectSurfaceView;
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import org.distorted.objectlib.helpers.TwistyActivity;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class ObjectControl
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{
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public static final int NUM_SPEED_PROBES = 10;
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public static final int INVALID_POINTER_ID = -1;
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public static final int MODE_ROTATE = 0;
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public static final int MODE_DRAG = 1;
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public static final int MODE_REPLACE = 2;
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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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public final static int SWIPING_SENSITIVITY = 240;
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// Moving the finger by 0.3 of an inch will start a Rotation.
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public final static float ROTATION_SENSITIVITY = 0.3f;
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private final Static4D CAMERA_POINT = new Static4D(0, 0, 0, 0);
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private final WeakReference<TwistyActivity> mAct;
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private final ObjectStateActioner mActioner;
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private final ObjectPreRender mPreRender;
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private Movement mMovement;
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private boolean mDragging, mBeginningRotation, mContinuingRotation;
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private int mScreenWidth, mScreenHeight, mScreenMin;
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private float mRotAngle, mInitDistance;
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private float mStartRotX, mStartRotY;
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private float mAxisX, mAxisY;
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private float mRotationFactor;
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private int mLastCubitColor, mLastCubitFace, mLastCubit;
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private int mCurrentAxis, mCurrentRow;
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private float mCurrentAngle, mCurrRotSpeed;
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private final float[] mLastX;
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private final float[] mLastY;
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private final long[] mLastT;
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private int mFirstIndex, mLastIndex;
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private final int mDensity;
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private int mPointer1, mPointer2;
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private float mX1, mY1, mX2, mY2, mX, mY;
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private boolean mIsAutomatic;
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private static final Static4D mQuat= new Static4D(-0.25189602f,0.3546389f,0.009657208f,0.90038127f);
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private static final Static4D mTemp= new Static4D(0,0,0,1);
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// cast the 3D axis we are currently rotating along (which is already casted to the surface of the
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// currently touched face AND converted into a 4D vector - fourth 0) to a 2D in-screen-surface axis
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private void computeCurrentAxis(Static4D axis)
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{
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Static4D result = QuatHelper.rotateVectorByQuat(axis, mQuat);
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mAxisX =result.get0();
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mAxisY =result.get1();
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float len = (float)Math.sqrt(mAxisX*mAxisX + mAxisY*mAxisY);
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mAxisX /= len;
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mAxisY /= len;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void addSpeedProbe(float x, float y)
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{
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long currTime = System.currentTimeMillis();
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boolean theSame = mLastIndex==mFirstIndex;
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mLastIndex++;
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if( mLastIndex>=NUM_SPEED_PROBES ) mLastIndex=0;
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mLastT[mLastIndex] = currTime;
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mLastX[mLastIndex] = x;
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mLastY[mLastIndex] = y;
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if( mLastIndex==mFirstIndex)
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{
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mFirstIndex++;
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if( mFirstIndex>=NUM_SPEED_PROBES ) mFirstIndex=0;
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}
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if( theSame )
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{
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mLastT[mFirstIndex] = currTime;
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mLastX[mFirstIndex] = x;
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mLastY[mFirstIndex] = y;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void computeCurrentSpeedInInchesPerSecond()
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{
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long firstTime = mLastT[mFirstIndex];
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long lastTime = mLastT[mLastIndex];
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float fX = mLastX[mFirstIndex];
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float fY = mLastY[mFirstIndex];
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float lX = mLastX[mLastIndex];
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float lY = mLastY[mLastIndex];
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long timeDiff = lastTime-firstTime;
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mLastIndex = 0;
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mFirstIndex= 0;
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mCurrRotSpeed = timeDiff>0 ? 1000*retFingerDragDistanceInInches(fX,fY,lX,lY)/timeDiff : 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private float retFingerDragDistanceInInches(float xFrom, float yFrom, float xTo, float yTo)
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{
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float xDist = mScreenWidth*(xFrom-xTo);
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float yDist = mScreenHeight*(yFrom-yTo);
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float distInPixels = (float)Math.sqrt(xDist*xDist + yDist*yDist);
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return distInPixels/mDensity;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void setUpDragOrRotate(boolean down, float x, float y, int mode)
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{
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if( mode==MODE_DRAG )
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{
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mDragging = true;
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mBeginningRotation = false;
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mContinuingRotation = false;
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}
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else
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{
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TwistyObject object = mPreRender.getObject();
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CAMERA_POINT.set2( object==null ? 1.21f : object.getCameraDist() );
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Static4D touchPoint = new Static4D(x, y, 0, 0);
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Static4D rotatedTouchPoint= QuatHelper.rotateVectorByInvertedQuat(touchPoint, mQuat);
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Static4D rotatedCamera= QuatHelper.rotateVectorByInvertedQuat(CAMERA_POINT, mQuat);
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if( object!=null && mMovement!=null && mMovement.faceTouched(rotatedTouchPoint,rotatedCamera,object.getObjectRatio() ) )
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{
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mDragging = false;
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mContinuingRotation = false;
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if( mode==MODE_ROTATE )
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{
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mBeginningRotation= !mPreRender.isTouchBlocked();
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}
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else if( mode==MODE_REPLACE )
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{
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mBeginningRotation= false;
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if( down )
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{
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int color = mActioner.getCurrentColor();
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mLastCubitFace = mMovement.getTouchedFace();
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float[] point = mMovement.getTouchedPoint3D();
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mLastCubit = object.getCubit(point);
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mPreRender.setTextureMap( mLastCubit, mLastCubitFace, color );
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mLastCubitColor = mActioner.cubitIsLocked(object.getObjectType(),mLastCubit);
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}
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}
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}
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else
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{
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final TwistyActivity act = mAct.get();
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final boolean locked= act.isLocked();
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mDragging = (!locked || mIsAutomatic);
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mBeginningRotation = false;
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mContinuingRotation = false;
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if( !mDragging ) mActioner.failedToDrag(act);
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void drag(float x, float y)
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{
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if( mPointer1!=INVALID_POINTER_ID && mPointer2!=INVALID_POINTER_ID)
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{
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float x2 = (mX2 - mScreenWidth*0.5f)/mScreenMin;
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float y2 = (mScreenHeight*0.5f - mY2)/mScreenMin;
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float angleNow = getAngle(x,y,x2,y2);
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float angleDiff = angleNow-mRotAngle;
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float sinA =-(float)Math.sin(angleDiff);
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float cosA = (float)Math.cos(angleDiff);
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Static4D dragQuat = QuatHelper.quatMultiply(new Static4D(0,0,sinA,cosA), mQuat);
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mTemp.set(dragQuat);
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mRotAngle = angleNow;
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float distNow = (float)Math.sqrt( (x-x2)*(x-x2) + (y-y2)*(y-y2) );
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float distQuot = mInitDistance<0 ? 1.0f : distNow/ mInitDistance;
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mInitDistance = distNow;
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TwistyObject object = mPreRender.getObject();
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if( object!=null ) object.setObjectRatio(distQuot);
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}
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else
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{
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Static4D dragQuat = QuatHelper.quatMultiply(QuatHelper.quatFromDrag(mX-x,y-mY), mQuat);
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mTemp.set(dragQuat);
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}
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mPreRender.setQuatOnNextRender();
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mX = x;
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mY = y;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void finishRotation()
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{
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computeCurrentSpeedInInchesPerSecond();
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int angle = mPreRender.getObject().computeNearestAngle(mCurrentAxis,mCurrentAngle, mCurrRotSpeed);
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mPreRender.finishRotation(angle);
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mPreRender.rememberMove(mCurrentAxis,mCurrentRow,angle);
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if( angle!=0 )
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{
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TwistyActivity act = mAct.get();
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mActioner.onFinishRotation(act,mCurrentAxis,mCurrentRow,angle);
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}
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mContinuingRotation = false;
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mBeginningRotation = false;
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mDragging = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void continueRotation(float x, float y)
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{
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float dx = x-mStartRotX;
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float dy = y-mStartRotY;
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float alpha = dx*mAxisX + dy*mAxisY;
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float x2 = dx - alpha*mAxisX;
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float y2 = dy - alpha*mAxisY;
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float len = (float)Math.sqrt(x2*x2 + y2*y2);
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// we have the length of 1D vector 'angle', now the direction:
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float tmp = mAxisY==0 ? -mAxisX*y2 : mAxisY*x2;
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float angle = (tmp>0 ? 1:-1)*len*mRotationFactor;
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mCurrentAngle = SWIPING_SENSITIVITY*angle;
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mPreRender.getObject().continueRotation(mCurrentAngle);
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addSpeedProbe(x2,y2);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void beginRotation(float x, float y)
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{
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mStartRotX = x;
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mStartRotY = y;
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TwistyObject object = mPreRender.getObject();
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int numLayers = object.getNumLayers();
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Static4D touchPoint2 = new Static4D(x, y, 0, 0);
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Static4D rotatedTouchPoint2= QuatHelper.rotateVectorByInvertedQuat(touchPoint2, mQuat);
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Static2D res = mMovement.newRotation(rotatedTouchPoint2,object.getObjectRatio());
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mCurrentAxis = (int)res.get0();
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mCurrentRow = (int)res.get1();
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computeCurrentAxis( mMovement.getCastedRotAxis(mCurrentAxis) );
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mRotationFactor = mMovement.returnRotationFactor(numLayers,mCurrentRow);
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object.beginNewRotation( mCurrentAxis, mCurrentRow );
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TwistyActivity act = mAct.get();
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mActioner.onBeginRotation(act);
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addSpeedProbe(x,y);
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mBeginningRotation = false;
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mContinuingRotation= true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private float getAngle(float x1, float y1, float x2, float y2)
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{
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return (float) Math.atan2(y1-y2, x1-x2);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void prepareDown(MotionEvent event)
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{
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mPointer1 = event.getPointerId(0);
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mX1 = event.getX();
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mY1 = event.getY();
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mPointer2 = INVALID_POINTER_ID;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void prepareMove(MotionEvent event)
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{
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int index1 = event.findPointerIndex(mPointer1);
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if( index1>=0 )
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{
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mX1 = event.getX(index1);
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mY1 = event.getY(index1);
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}
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int index2 = event.findPointerIndex(mPointer2);
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if( index2>=0 )
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{
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mX2 = event.getX(index2);
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mY2 = event.getY(index2);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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|
359 |
|
|
private void prepareUp(MotionEvent event)
|
360 |
|
|
{
|
361 |
|
|
mPointer1 = INVALID_POINTER_ID;
|
362 |
|
|
mPointer2 = INVALID_POINTER_ID;
|
363 |
|
|
}
|
364 |
|
|
|
365 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
366 |
|
|
|
367 |
|
|
private void prepareDown2(MotionEvent event)
|
368 |
|
|
{
|
369 |
|
|
int index = event.getActionIndex();
|
370 |
|
|
|
371 |
|
|
if( mPointer1==INVALID_POINTER_ID )
|
372 |
|
|
{
|
373 |
|
|
mPointer1 = event.getPointerId(index);
|
374 |
|
|
mX1 = event.getX(index);
|
375 |
|
|
mY1 = event.getY(index);
|
376 |
|
|
}
|
377 |
|
|
else if( mPointer2==INVALID_POINTER_ID )
|
378 |
|
|
{
|
379 |
|
|
mPointer2 = event.getPointerId(index);
|
380 |
|
|
mX2 = event.getX(index);
|
381 |
|
|
mY2 = event.getY(index);
|
382 |
|
|
}
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
386 |
|
|
|
387 |
|
|
private void prepareUp2(MotionEvent event)
|
388 |
|
|
{
|
389 |
|
|
int index = event.getActionIndex();
|
390 |
|
|
|
391 |
|
|
if( index==event.findPointerIndex(mPointer1) ) mPointer1 = INVALID_POINTER_ID;
|
392 |
|
|
else if( index==event.findPointerIndex(mPointer2) ) mPointer2 = INVALID_POINTER_ID;
|
393 |
|
|
}
|
394 |
|
|
|
395 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
396 |
|
|
|
397 |
|
|
private void actionMove(float x1, float y1, float x2, float y2, int mode)
|
398 |
|
|
{
|
399 |
|
|
float pX = mPointer1 != INVALID_POINTER_ID ? x1 : x2;
|
400 |
|
|
float pY = mPointer1 != INVALID_POINTER_ID ? y1 : y2;
|
401 |
|
|
|
402 |
|
|
float x = (pX - mScreenWidth*0.5f)/mScreenMin;
|
403 |
|
|
float y = (mScreenHeight*0.5f -pY)/mScreenMin;
|
404 |
|
|
|
405 |
|
|
if( mBeginningRotation )
|
406 |
|
|
{
|
407 |
|
|
if( retFingerDragDistanceInInches(mX,mY,x,y) > ROTATION_SENSITIVITY )
|
408 |
|
|
{
|
409 |
|
|
beginRotation(x,y);
|
410 |
|
|
}
|
411 |
|
|
}
|
412 |
|
|
else if( mContinuingRotation )
|
413 |
|
|
{
|
414 |
|
|
continueRotation(x,y);
|
415 |
|
|
}
|
416 |
|
|
else if( mDragging )
|
417 |
|
|
{
|
418 |
|
|
drag(x,y);
|
419 |
|
|
}
|
420 |
|
|
else
|
421 |
|
|
{
|
422 |
|
|
setUpDragOrRotate(false,x,y,mode);
|
423 |
|
|
}
|
424 |
|
|
}
|
425 |
|
|
|
426 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
427 |
|
|
|
428 |
|
|
private void actionDown(float x, float y, int mode)
|
429 |
|
|
{
|
430 |
|
|
mX = (x - mScreenWidth*0.5f)/mScreenMin;
|
431 |
|
|
mY = (mScreenHeight*0.5f - y)/mScreenMin;
|
432 |
|
|
|
433 |
|
|
setUpDragOrRotate(true,mX,mY,mode);
|
434 |
|
|
}
|
435 |
|
|
|
436 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
437 |
|
|
|
438 |
|
|
private void actionUp()
|
439 |
|
|
{
|
440 |
|
|
if( mContinuingRotation )
|
441 |
|
|
{
|
442 |
|
|
finishRotation();
|
443 |
|
|
}
|
444 |
|
|
|
445 |
|
|
if( mLastCubitColor>=0 )
|
446 |
|
|
{
|
447 |
|
|
mPreRender.setTextureMap( mLastCubit, mLastCubitFace, mLastCubitColor );
|
448 |
|
|
mLastCubitColor = -1;
|
449 |
|
|
}
|
450 |
|
|
}
|
451 |
|
|
|
452 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
453 |
|
|
|
454 |
|
|
private void actionDown2(float x1, float y1, float x2, float y2)
|
455 |
|
|
{
|
456 |
|
|
mRotAngle = getAngle(x1,-y1, x2,-y2);
|
457 |
|
|
mInitDistance = -1;
|
458 |
|
|
|
459 |
|
|
mX = (x1 - mScreenWidth*0.5f )/mScreenMin;
|
460 |
|
|
mY = (mScreenHeight*0.5f - y1)/mScreenMin;
|
461 |
|
|
|
462 |
|
|
if( mBeginningRotation )
|
463 |
|
|
{
|
464 |
|
|
mContinuingRotation = false;
|
465 |
|
|
mBeginningRotation = false;
|
466 |
|
|
mDragging = true;
|
467 |
|
|
}
|
468 |
|
|
else if( mContinuingRotation )
|
469 |
|
|
{
|
470 |
|
|
finishRotation();
|
471 |
|
|
}
|
472 |
|
|
}
|
473 |
|
|
|
474 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
475 |
|
|
|
476 |
|
|
private void actionUp2(boolean p1isUp, float x1, float y1, boolean p2isUp, float x2, float y2)
|
477 |
|
|
{
|
478 |
|
|
if( p1isUp )
|
479 |
|
|
{
|
480 |
|
|
mX = (x2 - mScreenWidth*0.5f)/mScreenMin;
|
481 |
|
|
mY = (mScreenHeight*0.5f - y2)/mScreenMin;
|
482 |
|
|
}
|
483 |
|
|
if( p2isUp )
|
484 |
|
|
{
|
485 |
|
|
mX = (x1 - mScreenWidth*0.5f)/mScreenMin;
|
486 |
|
|
mY = (mScreenHeight*0.5f - y1)/mScreenMin;
|
487 |
|
|
}
|
488 |
|
|
}
|
489 |
|
|
|
490 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
491 |
|
|
// PUBLIC API
|
492 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
493 |
|
|
|
494 |
|
|
public ObjectControl(TwistyActivity act, ObjectSurfaceView view, ObjectStateActioner actioner)
|
495 |
|
|
{
|
496 |
|
|
mIsAutomatic = false;
|
497 |
|
|
|
498 |
|
|
mLastCubitColor = -1;
|
499 |
|
|
mCurrRotSpeed = 0.0f;
|
500 |
|
|
|
501 |
|
|
mLastX = new float[NUM_SPEED_PROBES];
|
502 |
|
|
mLastY = new float[NUM_SPEED_PROBES];
|
503 |
|
|
mLastT = new long[NUM_SPEED_PROBES];
|
504 |
|
|
mFirstIndex =0;
|
505 |
|
|
mLastIndex =0;
|
506 |
|
|
|
507 |
|
|
DisplayMetrics dm = new DisplayMetrics();
|
508 |
|
|
act.getWindowManager().getDefaultDisplay().getMetrics(dm);
|
509 |
|
|
|
510 |
|
|
mDensity = dm.densityDpi;
|
511 |
|
|
|
512 |
15e5214c
|
Leszek Koltunski
|
mPreRender = new ObjectPreRender(act,this,actioner);
|
513 |
880beeea
|
Leszek Koltunski
|
mAct = new WeakReference<>(act);
|
514 |
|
|
mActioner = actioner;
|
515 |
|
|
}
|
516 |
|
|
|
517 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
518 |
|
|
|
519 |
|
|
public void setScreenSize(int width, int height)
|
520 |
|
|
{
|
521 |
|
|
mScreenWidth = width;
|
522 |
|
|
mScreenHeight= height;
|
523 |
|
|
|
524 |
|
|
mScreenMin = Math.min(width, height);
|
525 |
|
|
}
|
526 |
|
|
|
527 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
528 |
|
|
|
529 |
|
|
public void initialize()
|
530 |
|
|
{
|
531 |
|
|
mPointer1 = INVALID_POINTER_ID;
|
532 |
|
|
mPointer2 = INVALID_POINTER_ID;
|
533 |
|
|
}
|
534 |
|
|
|
535 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
536 |
|
|
|
537 |
|
|
public void setQuat()
|
538 |
|
|
{
|
539 |
|
|
mQuat.set(mTemp);
|
540 |
|
|
}
|
541 |
|
|
|
542 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
543 |
|
|
|
544 |
|
|
public Static4D getQuat()
|
545 |
|
|
{
|
546 |
|
|
return mQuat;
|
547 |
|
|
}
|
548 |
|
|
|
549 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
550 |
|
|
|
551 |
|
|
public void setMovement(Movement movement)
|
552 |
|
|
{
|
553 |
|
|
mMovement = movement;
|
554 |
|
|
}
|
555 |
|
|
|
556 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
557 |
|
|
|
558 |
|
|
public ObjectPreRender getPreRender()
|
559 |
|
|
{
|
560 |
|
|
return mPreRender;
|
561 |
|
|
}
|
562 |
|
|
|
563 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
564 |
|
|
|
565 |
|
|
public boolean onTouchEvent(MotionEvent event, int mode)
|
566 |
|
|
{
|
567 |
|
|
int action = event.getActionMasked();
|
568 |
|
|
|
569 |
|
|
switch(action)
|
570 |
|
|
{
|
571 |
|
|
case MotionEvent.ACTION_DOWN : prepareDown(event);
|
572 |
|
|
actionDown(mX1, mY1, mode);
|
573 |
|
|
break;
|
574 |
|
|
case MotionEvent.ACTION_MOVE : prepareMove(event);
|
575 |
|
|
actionMove(mX1, mY1, mX2, mY2, mode);
|
576 |
|
|
break;
|
577 |
|
|
case MotionEvent.ACTION_UP : prepareUp(event);
|
578 |
|
|
actionUp();
|
579 |
|
|
break;
|
580 |
|
|
case MotionEvent.ACTION_POINTER_DOWN: prepareDown2(event);
|
581 |
|
|
actionDown2(mX1, mY1, mX2, mY2);
|
582 |
|
|
break;
|
583 |
|
|
case MotionEvent.ACTION_POINTER_UP : prepareUp2(event);
|
584 |
|
|
boolean p1isUp = mPointer1==INVALID_POINTER_ID;
|
585 |
|
|
boolean p2isUp = mPointer2==INVALID_POINTER_ID;
|
586 |
|
|
actionUp2(p1isUp, mX1, mY1, p2isUp, mX2, mY2);
|
587 |
|
|
break;
|
588 |
|
|
}
|
589 |
|
|
|
590 |
|
|
return true;
|
591 |
|
|
}
|
592 |
|
|
}
|