ConnectFour/gameClass.js at master · RobertBowie/ConnectFour · GitHub

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var Game = function(){
  this.board = this.newGame();
};

Game.prototype.newGame = function() {
  return [[BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK],
          [BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK],
          [BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK],
          [BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK],
          [BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK],
          [BLANK, BLANK, BLANK, BLANK, BLANK, BLANK, BLANK]]
};

Game.prototype.printBoard = function() {
  console.log(this.board[0] + "\n" + this.board[1] + "\n" +
              this.board[2] + "\n" + this.board[3] + "\n" +
              this.board[4] + "\n" + this.board[5]);
};

Game.prototype.placePiece = function(col, piece) {
//for col === 1 => search board[5][0], board[4][0]...
  if(!piece){
    piece = RED;
  };
  var colTrans = col - 1, rowInd, colInd;
  for(var i = 5; i >= 0; i--){ //search col for 1st empty
    if(this.board[i][colTrans] === BLANK){
      this.board[i][colTrans] = piece;
      rowInd = i;
      break;
    }
  }
  return [rowInd, colTrans, piece];
};

Game.prototype.markBoard = function(rowColPieceArr){
  var row = rowColPieceArr[0].toString();
  var col = rowColPieceArr[1].toString();
  var piece = rowColPieceArr[2].toString();
  var workOn = document.querySelector('[data-matrixval="'+row+'x'+col+'"]');
  workOn.style.background = piece;
};

Game.prototype.clearBoard = function() {
  var t = document.getElementById("game"),
      tableRows = t.getElementsByTagName("tr"),
      r = [], i, len, tds, j, jlen;

  for ( i =0, len = tableRows.length; i<len; i++) {
      tds = tableRows[i].getElementsByTagName('td');
      for( j = 0, jlen = tds.length; j < jlen; j++) {
          tds[j].style.background = 'white';
      }
  }
};

Game.prototype.spotCheck = function(modRow, modCol, piece) {
  var modRow = modRow;
  var modCol = modCol;
  var piece = piece;
  return (!!(this.board[modRow]) && !!(this.board[modRow][modCol]) && this.board[modRow][modCol] === piece);
};

Game.prototype.winCheck = function(rowColPieceArr){
  var row = rowColPieceArr[0];
  var col = rowColPieceArr[1];
  var piece = rowColPieceArr[2];
//START of Horizontal win condition checks
  if(this.spotCheck(row, col + 1, piece) && this.spotCheck(row, col + 2, piece) && this.spotCheck(row, col + 3, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row, col + 1, piece) && this.spotCheck(row, col + 2, piece) && this.spotCheck(row, col - 1, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row, col + 1, piece) && this.spotCheck(row, col - 1, piece) && this.spotCheck(row, col - 2, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row, col - 1, piece) && this.spotCheck(row, col - 2, piece) && this.spotCheck(row, col - 3, piece)){
    console.log(piece + "'s Win!")
    return true;
//END of Horizontal win condition checks
//-------------------------------------------------------------------------------------------------------------------
//START of Vertical win condition checks
  } else if(this.spotCheck(row + 1, col, piece) && this.spotCheck(row + 2, col, piece) && this.spotCheck(row + 3, col, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col, piece) && this.spotCheck(row + 2, col, piece) && this.spotCheck(row - 1, col, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col, piece) && this.spotCheck(row - 1, col, piece) && this.spotCheck(row - 2, col, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row - 1, col, piece) && this.spotCheck(row - 2, col, piece) && this.spotCheck(row - 3, col, piece)){
    console.log(piece + "'s Win!")
    return true;
//END of Vertical win condition checks
//-------------------------------------------------------------------------------------------------------------------
//START of Diagonal down-right win condition checks
  } else if(this.spotCheck(row + 1, col + 1, piece) && this.spotCheck(row + 2, col + 2, piece) && this.spotCheck(row + 3, col + 3, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col + 1, piece) && this.spotCheck(row + 2, col + 2, piece) && this.spotCheck(row - 1, col - 1, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col + 1, piece) && this.spotCheck(row - 1, col - 1, piece) && this.spotCheck(row - 2, col - 2, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row - 1, col - 1, piece) && this.spotCheck(row - 2, col - 2, piece) && this.spotCheck(row - 3, col - 3, piece)){
    console.log(piece + "'s Win!")
    return true;
//END of Diagonal down-right win condition checks
//-------------------------------------------------------------------------------------------------------------------
//START of Diagonal down-left win condition checks
  } else if(this.spotCheck(row + 1, col - 1, piece) && this.spotCheck(row + 2, col - 2, piece) && this.spotCheck(row + 3, col - 3, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col - 1, piece) && this.spotCheck(row + 2, col - 2, piece) && this.spotCheck(row - 1, col + 1, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row + 1, col - 1, piece) && this.spotCheck(row - 1, col + 1, piece) && this.spotCheck(row - 2, col + 2, piece)){
    console.log(piece + "'s Win!")
    return true;
  } else if(this.spotCheck(row - 1, col + 1, piece) && this.spotCheck(row - 2, col + 2, piece) && this.spotCheck(row - 3, col + 3, piece)){
    console.log(piece + "'s Win!")
    return true;
//END of Diagonal down-left win condition checks
//-------------------------------------------------------------------------------------------------------------------
  } else {
    return false;
  }
};