Magic Cube

import org.distorted.library.effect.MatrixEffect;

import org.distorted.library.effect.MatrixEffectMove;

import org.distorted.library.effect.MatrixEffectRotate;

import org.distorted.library.mesh.MeshJoined;

import org.distorted.library.type.Static1D;

  private static final float SQ2 = 0.5f*((float)Math.sqrt(2));

  private static final float[] LEGAL = new float[] { 0.0f , 0.5f , -0.5f , 1.0f , -1.0f , SQ2 , -SQ2 };

  // axisXright (right-YELLOW) axisXleft (left-WHITE) axisYright (top-BLUE) axisYleft (bottom-GREEN) axisZright (front-RED) axisZleft (back-BROWN)

  private static final int[] FACE_COLORS   = new int[] { 0xffffff00, 0xffffffff, 0xff0000ff, 0xff00ff00, 0xffff0000, 0xffb5651d };

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

  RubikCube(int size, Static4D quatCur, Static4D quatAcc, DistortedTexture texture, MeshRectangles mesh, DistortedEffects effects)

    {

    super(size,quatCur,quatAcc,texture,mesh,effects);

    }

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

    return LEGAL;

  int getNumFaces()

    return FACE_COLORS.length;

    }

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

  void createFaceTexture(Canvas canvas, Paint paint, int face)

    {

    final int S = TEXTURE_HEIGHT;

    final int R = TEXTURE_HEIGHT/10;

    final int M = TEXTURE_HEIGHT/20;

    paint.setColor(FACE_COLORS[face]);

    canvas.drawRoundRect( (face*S+M), M, (face*S+M) + (S-2*M), M + (S-2*M), R, R, paint);

  MeshBase createCubitMesh(int vertices)

    final int MESHES=6;

    Static3D axisY  = new Static3D(0,1,0);

    Static3D axisX  = new Static3D(1,0,0);

    Static3D center = new Static3D(0,0,0);

    Static1D angle  = new Static1D(0);

    MatrixEffect[] effectsY = new MatrixEffect[2];

    effectsY[0] = new MatrixEffectMove(new Static3D(0,0,+0.5f));

    effectsY[1] = new MatrixEffectRotate( angle, axisY, center );

    MeshBase[] meshes = new MeshRectangles[MESHES];

    for(int i=0; i<MESHES; i++) meshes[i] = new MeshRectangles(vertices,vertices);

    angle.set(0);

    meshes[4].apply(effectsY);  // front

    angle.set(90);

    meshes[0].apply(effectsY);  // right

    angle.set(180);

    meshes[5].apply(effectsY);  // back

    angle.set(270);

    meshes[1].apply(effectsY);  // left

    MatrixEffect[] effectsX = new MatrixEffect[2];

    effectsX[0] = new MatrixEffectMove(new Static3D(0,0,+0.5f));

    effectsX[1] = new MatrixEffectRotate( angle, axisX, center );

    angle.set( 90);

    meshes[3].apply(effectsX);  // bottom

    angle.set(-90);

    meshes[2].apply(effectsX);  // top

    return new MeshJoined(meshes);

  boolean belongsToRotation( Static3D currentPosition, Static3D axis, int row)

    if( axis.get0()!=0 ) return currentPosition.get0()==row;

    if( axis.get1()!=0 ) return currentPosition.get1()==row;

    if( axis.get2()!=0 ) return currentPosition.get2()==row;

    return false;

    // axisXright (right-YELLOW) axisXleft (left-WHITE) axisYright (top-BLUE) axisYleft (bottom-GREEN) axisZright (front-RED) axisZleft (back-BROWN)

    mapRight = new Static4D( 0*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapLeft  = new Static4D( 1*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapTop   = new Static4D( 2*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapBottom= new Static4D( 3*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapFront = new Static4D( 4*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapBack  = new Static4D( 5*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

    mapBlack = new Static4D( 6*(1/7.0f), 0.0f, 1/7.0f, 1.0f);

  void textureCubitMesh(MeshBase mesh, int x, int y, int z)

    Static4D tmpLeft  = (x==       0 ? mapLeft  :mapBlack);

    Static4D tmpFront = (z== mSize-1 ? mapFront :mapBlack);

    Static4D tmpBack  = (z==       0 ? mapBack  :mapBlack);

    Static4D[] maps = new Static4D[] { tmpRight, tmpLeft, tmpTop, tmpBottom, tmpFront, tmpBack};

    mesh.setTextureMap(maps);

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

  static final int TEXTURE_HEIGHT = 128;

  RubikObject(int size, Static4D quatCur, Static4D quatAcc, DistortedTexture nodeTexture, MeshRectangles nodeMesh, DistortedEffects nodeEffects)

    super(nodeTexture,nodeEffects,nodeMesh);

    nodeEffects.apply(nodeScaleEffect);

      MeshBase cubit = createCubitMesh(vertices);

      textureCubitMesh(cubit,x,y,z);

      mCubits[i] = new Cubit( this , cubit, new Static3D(x,y,z) );

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

// the getFaceColors + final black in a horizontal strip.

  public void createTexture()

    {

    Bitmap bitmap;

    final int numColors = getNumFaces();

    Paint paint = new Paint();

    bitmap = Bitmap.createBitmap( (numColors+1)*TEXTURE_HEIGHT, TEXTURE_HEIGHT, Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmap);

    paint.setAntiAlias(true);

    paint.setTextAlign(Paint.Align.CENTER);

    paint.setStyle(Paint.Style.FILL);

    paint.setColor(0xff000000);

    canvas.drawRect(0, 0, (numColors+1)*TEXTURE_HEIGHT, TEXTURE_HEIGHT, paint);

    for(int i=0; i<numColors; i++)

      {

      createFaceTexture(canvas,paint,i);

      }

    mTexture.setTexture(bitmap);

    }

  abstract int getNumFaces();

  abstract void createFaceTexture(Canvas canvas, Paint paint, int face);

  abstract MeshBase createCubitMesh(int vertices);

  abstract boolean belongsToRotation(Static3D position, Static3D axis, int row);

  abstract void textureCubitMesh(MeshBase mesh, int x, int y, int z);