Magic Cube

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// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is free software: you can redistribute it and/or modify                            //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Magic Cube is distributed in the hope that it will be useful,                                 //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.screens;

import android.view.View;

import android.widget.ImageButton;

import android.widget.LinearLayout;

import org.distorted.main.R;

import org.distorted.main.RubikActivity;

import org.distorted.main.RubikPreRender;

import org.distorted.objects.TwistyObject;

import java.util.ArrayList;

///////////////////////////////////////////////////////////////////////////////////////////////////

abstract class RubikScreenBase extends RubikScreenAbstract implements RubikPreRender.ActionFinishedListener

  {

  private static final int DURATION_MILLIS = 750;

  private ImageButton mPrevButton, mLockButton;

  private boolean mCanPrevMove;

  private static class Move

    {

    private final int mAxis, mRow, mAngle;

    Move(int axis, int row, int angle)

      {

      mAxis = axis;

      mRow  = row;

      mAngle= angle;

      }

    }

  ArrayList<Move> mMoves;

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void backMove(RubikPreRender pre)

    {

    if( mCanPrevMove )

      {

      int numMoves = mMoves.size();

      if( numMoves>0 )

        {

        RubikScreenBase.Move move = mMoves.remove(numMoves-1);

        TwistyObject object = pre.getObject();

        int axis  = move.mAxis;

        int row   = (1<<move.mRow);

        int angle = move.mAngle;

        int numRot= Math.abs(angle*object.getBasicAngle()/360);

        if( angle!=0 )

          {

          mCanPrevMove = false;

          pre.addRotation(this, axis, row, -angle, numRot*DURATION_MILLIS);

          }

        else

          {

          android.util.Log.e("solution", "error: trying to back move of angle 0");

          }

        }

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private void toggleLock(RubikActivity act)

    {

    act.toggleLock();

    mLockButton.setImageResource(getLockIcon(act));

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  private int getLockIcon(RubikActivity act)

    {

    if( act.retLocked() )

      {

      return RubikActivity.getDrawable(R.drawable.ui_small_locked,R.drawable.ui_medium_locked, R.drawable.ui_big_locked, R.drawable.ui_huge_locked);

      }

    else

      {

      return RubikActivity.getDrawable(R.drawable.ui_small_unlocked,R.drawable.ui_medium_unlocked, R.drawable.ui_big_unlocked, R.drawable.ui_huge_unlocked);

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  void createBottomPane(final RubikActivity act, float width, ImageButton button)

    {

    mCanPrevMove = true;

    if( mMoves==null ) mMoves = new ArrayList<>();

    else               mMoves.clear();

    LinearLayout layoutBot = act.findViewById(R.id.lowerBar);

    layoutBot.removeAllViews();

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT,1);

    LinearLayout layoutLeft = new LinearLayout(act);

    layoutLeft.setLayoutParams(params);

    LinearLayout layoutMid = new LinearLayout(act);

    layoutMid.setLayoutParams(params);

    LinearLayout layoutRight = new LinearLayout(act);

    layoutRight.setLayoutParams(params);

    setupPrevButton(act,width);

    layoutLeft.addView(mPrevButton);

    setupLockButton(act,width);

    layoutMid.addView(mLockButton);

    layoutRight.addView(button);

    layoutBot.addView(layoutLeft);

    layoutBot.addView(layoutMid);

    layoutBot.addView(layoutRight);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  void setupLockButton(final RubikActivity act, final float width)

    {

    final int icon = getLockIcon(act);

    mLockButton = new TransparentImageButton(act, icon, width,LinearLayout.LayoutParams.MATCH_PARENT);

    mLockButton.setOnClickListener( new View.OnClickListener()

      {

      @Override

      public void onClick(View v)

        {

        toggleLock(act);

        }

      });

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  void setupPrevButton(final RubikActivity act, final float width)

    {

    int icon = RubikActivity.getDrawable(R.drawable.ui_small_cube_back,R.drawable.ui_medium_cube_back, R.drawable.ui_big_cube_back, R.drawable.ui_huge_cube_back);

    mPrevButton = new TransparentImageButton(act, icon, width,LinearLayout.LayoutParams.MATCH_PARENT);

    mPrevButton.setOnClickListener( new View.OnClickListener()

      {

      @Override

      public void onClick(View v)

        {

        RubikPreRender pre = act.getPreRender();

        backMove(pre);

        }

      });

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void addMove(int axis, int row, int angle)

    {

    mMoves.add(new Move(axis,row,angle));

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  public void onActionFinished(final long effectID)

    {

    mCanPrevMove = true;

    }

  }