int iSelect = -1;
int jSelect = -1;

int highlight = 0;

int[][] savedGame = new int[0][0];

PFont myFont; 

sBox[][] myBox;


void setup()
{
  size(400,400);
  myFont = loadFont("arial.vlw");
  textFont(myFont,11);
  
  myBox = new sBox[9][9];
  
  for(int i=0;i < 9;i++)
    for(int j=0; j<9; j++)
      myBox[i][j] = new sBox(i,j);  
  
}

void draw()
{
  fill(255);
  strokeWeight(1);
  for(int i=0;i<9;i++)
    for(int j=0;j<9;j++)
    {
      rect(20+j*40,20+i*40,40,40);
    }
  strokeWeight(3);
  noFill();
  rect(20,20,360,360);
  line(140,20,140,380);
  line(260,20,260,380);
  line(20,140,380,140);
  line(20,260,380,260);
  
  if (iSelect !=-1)
  {
    //highlight box
    stroke(#00FF00);
    //fill(#0000FF);
    if(highlight == 1)
      rect(20,20+iSelect*40,360,40);
    else if(highlight==2)
      rect(20+jSelect*40,20,40,360);
    else if(highlight == 3)
      rect(int(jSelect/3.0)*120+20,int(iSelect/3.0)*120+20,120,120);
    noFill();
    
    //selector box
    stroke(#FF0000);
    rect(20+jSelect*40,20+iSelect*40,40,40);
    stroke(0);
  }
  
  for(int i=0;i < 9;i++)
    for(int j=0; j<9; j++)
      myBox[i][j].display();
}

void mouseReleased()
{
  if(mouseX > 20 && mouseX < 380 && mouseY > 20 && mouseY < 380)
  {
    jSelect = floor((mouseX-20.0)/40.0);
    iSelect = floor((mouseY-20.0)/40.0);
  }
  else
  {
    jSelect = -1;
    iSelect = -1;
  }
  //println("Row: " + iSelect + " - Col: " + jSelect);
}

void keyPressed()
{

//INPUT NUMBER TO SELECTED BOX
  int numPress = int(str(key));
  if (iSelect != -1 && numPress < 10 && numPress > 0 && myBox[iSelect][jSelect].num ==-1)
  {
    myBox[iSelect][jSelect].num = numPress;
    killOthers(iSelect,jSelect,numPress);
  }
  
  
  //MISTAKE DELETER
  if(key == 'd' && myBox[iSelect][jSelect].num != -1)
  {

      myBox[iSelect][jSelect].num = -1;
      
      for(int i=0; i<9; i++)
        for (int j=0; j<9; j++)
          if (myBox[i][j].num == -1)
            for (int x=0; x<9;x++)
              myBox[i][j].numPossible[x] = true;
      
      for(int i=0; i<9; i++)
        for (int j=0; j<9; j++)
          if (myBox[i][j].num != -1)
            killOthers(i,j,myBox[i][j].num);
    /*

    for(int i=0; i<9; i++)
    {
        myBox[iSelect][jSelect].numPossible[i] = true;
      if (myBox[iSelect][i].num == -1)
         myBox[iSelect][i].numPossible[myBox[iSelect][jSelect].num-1] = true;
      if (myBox[i][jSelect].num == -1)
         myBox[i][jSelect].numPossible[myBox[iSelect][jSelect].num-1] = true;
    }
    
    // same 3x3 box
    int iBase = iSelect - iSelect%3;
    int jBase = jSelect - jSelect%3;
    for(int i=0;i<3;i++)
      for(int j=0;j<3;j++)
         if (myBox[iBase+i][jBase + j].num == -1)
            myBox[iBase+i][jBase + j].numPossible[myBox[iSelect][jSelect].num-1] = true;

    myBox[iSelect][jSelect].num = -1;
*/
  }
  
  
  //MOVE SELECTOR BOX
  if (key==CODED && iSelect != -1)
  {
    if (keyCode == UP && iSelect > 0)
      iSelect--;
    else if (keyCode == DOWN && iSelect < 8)
      iSelect++;
    else if (keyCode == LEFT && jSelect > 0)
      jSelect--;
    else if (keyCode == RIGHT && jSelect < 8)
      jSelect++;
  }
  
  if (key == 'n')
  {
    myBox = new sBox[9][9];
  
    for(int i=0;i < 9;i++)
      for(int j=0; j<9; j++)
        myBox[i][j] = new sBox(i,j);
  }
  else if (key == 'h')
  {
    if (highlight == 3)
      highlight = 0;
    else
      highlight++;
  }
  
  //SAVE
  else if (key == 's')
  {
    savedGame = new int[9][9];
    
    for(int i=0;i<9;i++)
      for(int j=0;j<9;j++)
        savedGame[i][j] = myBox[i][j].num;
  }
  
  else if (key == 'r')
  {
    if(savedGame.length !=0)
    {
      for(int i=0; i<9; i++)
        for (int j=0; j<9; j++)
            for (int x=0; x<9;x++)
            {
              myBox[i][j].numPossible[x] = true;
              myBox[i][j].num = -1;
            }
      
      for(int i=0; i<9; i++)
        for (int j=0; j<9; j++)
          if (savedGame[i][j] != -1)
          {
            myBox[i][j].num = savedGame[i][j];
            killOthers(i,j,myBox[i][j].num);
          }
    }
    
  }

  
}