#include "Piece.h"
#include "Board.h"
#include <string>
#include <iostream>
#include <sstream>
using namespace std;

void Piece::AddSquare(Space* s){
  spaces.push_back(s);
  if (s->Color() == black) { blackSpaces.push_back(s);}
  //  cout << "Piece "<< id << " has " << spaces.size() << " squares of which " << blackSpaces.size() << " are black\n";
}

int Piece::RecenterAtNextBlackSquare(){
  assert (!isOnBoard);   // piece may NOT be on the Board when it is recentered
  iCenterBlackSquare++;
  if (iCenterBlackSquare == blackSpaces.size()) {iCenterBlackSquare = 0;}  // back to beginning
  Recenter();
  if (iCenterBlackSquare == 0){
    return 1;   // notify caller that we are back at beginning
  }
  else{
    return 0;
  }
}

int Piece::RecenterAtOriginalSquare(){
  iCenterBlackSquare = 0;
  Recenter();
  return 0;
}

void Piece::ResetConfiguration(){
  RecenterAtOriginalSquare();
  ResetNumberOfTimesRotated();
}


int Piece::Recenter(){

  //  cout << "Piece " << id << " being recentered at black square " << iCenterBlackSquare+1 << " of " << blackSpaces.size() << endl;

  // now make all coordinates relative to this piece
  int CenterColumn = blackSpaces[iCenterBlackSquare]->Column();
  int CenterRow    = blackSpaces[iCenterBlackSquare]->Row();
  for (int is=0; is<spaces.size(); is++){
    Space* s = spaces[is];
    int newColumn = s->Column() - CenterColumn;
    int newRow    = s->Row()    - CenterRow;
    //    cout << "Square " << is << " rel. coords. changed from (" << s->Column() << "," << s->Row() << ")"
    // << " to (" << newColumn << "," << newRow << ")\n";
    s->SetColumnRow(newColumn,newRow);
  }
}


// the rotation is around the axis at (0,0) which is one of the black squares of the piece
int Piece::RotateCounterClockwise(unsigned int n){
  assert (!isOnBoard);   // piece may NOT be on the Board when it is rotated
  int wentAllTheWayRound=0;
  for (int i=0; i<n; i++){
    numberOfTimesRotated++;
    if (numberOfTimesRotated == 4){
      numberOfTimesRotated=0;
      wentAllTheWayRound = 1;
    }
    for (int is=0; is<this->NumberOfSquares(); is++){
      spaces[is]->RotateCounterClockwise();
    }
  }
  return wentAllTheWayRound;
}


int Piece::RemoveFromBoard(Board* theBoard){
  assert (isOnBoard);  // don't remove it if it's not currently on Board (will reset Board spaces and screw it all up)
    //  if (!isOnBoard) { return 1;}  // return error if the thing is NOT on the board already

  isOnBoard = false;
  // clear the board, space by space
  //  for (int is=0; is<spaces.size(); is++){
  for (int is=0; is<this->NumberOfSquares(); is++){
    int boardCol = columnOfCenterSquare + spaces[is]->Column();
    int boardRow = rowOfCenterSquare + spaces[is]->Row();

    //    cout << "clearing " << boardCol << " " << boardRow << endl;

    theBoard->Clear(boardCol,boardRow);

  }
  return 1;
}