connect4.js

class Connect4 {
  constructor() {
    // 7 columns and 6 rows
    this.column = [0, 0, 0, 0, 0, 0];
    this.currentPlayer = 1; // 2
      
  }
  
  play(col) {
    // Adding a chip to the column
    this.column[5] = this.currentPlayer;
    
    //const playerThatJustPlayed = this.currentPlayer;
    
    const message = 'Player ' + this.currentPlayer + ' has a turn'
    
    // Flipping the current player
    if(this.currentPlayer === 1) {
      this.currentPlayer = 2;
    }
    else {
      this.currentPlayer = 1;
    }
    
    //return 'Player ' + playerThatJustPlayed + ' has a turn';
    
    return message;
    
  }
  
  toString() {
    return this.columns.join("/n");
  }
}


class Game {
  constructor() {
    this.board = new Connect4();
  }
  
  start() {
    let result = ""
    while(result !== "Game has finished!") {
      const column = parseInt(prompt("What column? 0-6"))
      result = this.board.play(column)
      alert(this.board.toString())
      
      alert(this.board.currentPlayer)
    }
    alert("Game over!")
  }
}

// game = {
//   board: {
//     column: [0, 0, 0, 0, 0, 0]
//     currentPlayer: 1,
//     play: function,
//     toString: function
//   }
//   start: function
// }

const game = new Game();
game.start();