interview_template.js

/**
 * Queens Go Game - Interview Template
 * 
 * This file provides the structure for implementing the Queens Go game.
 * Focus on clear organization and understandability rather than efficiency.
 * 
 * Game Rules:
 * - The game is played on an 8x8 board
 * - Only two pieces exist: a Red queen and a Blue queen
 * - Queens move as in chess (horizontally, vertically, and diagonally)
 * - Any square that a queen starts on, passes through, or lands on turns to that queen's color
 * - Once a 2x2 square of the same color is formed, those squares are "locked" and can't change color
 * - If a queen traverses a square of the opponent's color that isn't locked, it changes to the moving queen's color
 * - Queens can still move through locked squares even if they can't change their color
 */

import { BOARD_SIZE, COLORS } from './src/utils/constants.js';

// TODO: Implement the Board component
class Board {
  /**
   * Create a new game board
   */
  constructor() {
    // TODO: Initialize the board cells
  }

  /**
   * Creates an empty game board
   * @returns {Array} The initialized game board
   */
  createBoard() {
    // TODO: Create and return an 8x8 board where each cell tracks:
    // - color (NONE, RED, BLUE)
    // - locked status (boolean)
  }

  /**
   * Color a square on the board
   * @param {number} row - The row of the square
   * @param {number} col - The column of the square
   * @param {string} color - The color to apply
   */
  colorSquare(row, col, color) {
    // TODO: Implement coloring logic
    // 1. Check if the square is locked
    // 2. If not locked, change the color
  }

  /**
   * Check for and lock 2x2 squares of the same color
   */
  checkAndLockSquares() {
    // TODO: Implement locking logic
    // 1. Check each possible 2x2 square
    // 2. If all four squares have the same color (not NONE), lock them
  }

  /**
   * Print the board with the given queen positions
   * @param {Object} redQueenPosition - The position of the red queen {row, col}
   * @param {Object} blueQueenPosition - The position of the blue queen {row, col}
   */
  print(redQueenPosition, blueQueenPosition) {
    // TODO: Implement board printing logic
    // Consider using the COLORS.ICONS for better visualization
  }
}

// TODO: Implement the Queen component
class Queen {
  /**
   * Create a new queen
   * @param {string} color - The color of the queen
   * @param {number} row - Initial row position
   * @param {number} col - Initial column position
   */
  constructor(color, row, col) {
    // TODO: Initialize the queen with color and position
  }

  /**
   * Update the queen's position
   * @param {number} row - New row position
   * @param {number} col - New column position
   */
  updatePosition(row, col) {
    // TODO: Update the queen's position
  }

  /**
   * Validates if a queen move is legal according to chess rules
   * @param {number} endRow - Ending row
   * @param {number} endCol - Ending column
   * @returns {boolean} Whether the move is valid
   */
  isValidMove(endRow, endCol) {
    // TODO: Implement move validation
    // 1. Check if within board boundaries
    // 2. Check if the move follows queen movement rules (horizontal, vertical, diagonal)
  }

  /**
   * Calculate the path a queen takes when moving
   * @param {number} endRow - Ending row
   * @param {number} endCol - Ending column
   * @returns {Array} Array of positions {row, col} in the path
   */
  calculatePath(endRow, endCol) {
    // TODO: Implement path calculation
    // 1. Determine the direction of movement
    // 2. Generate all points along the path
  }
}

// TODO: Implement the Game component that brings everything together
class Game {
  /**
   * Create a new game
   */
  constructor() {
    // TODO:
    // 1. Create a new board
    // 2. Create red and blue queens at random positions
    // 3. Color the initial squares
  }

  /**
   * Creates a queen at a random position
   * @param {string} color - The color of the queen
   * @returns {Queen} The created queen
   */
  createQueenRandomly(color) {
    // TODO:
    // 1. Generate random position
    // 2. Make sure queens don't overlap
    // 3. Return a new Queen instance
  }

  /**
   * Move a queen to a new position
   * @param {string} color - The color of the queen to move
   * @param {number} endRow - Target row
   * @param {number} endCol - Target column
   * @returns {boolean} Whether the move was successful
   */
  moveQueen(color, endRow, endCol) {
    // TODO: Implement queen movement
    // 1. Get the queen object based on color
    // 2. Validate the move
    // 3. Calculate the path
    // 4. Color all squares in the path
    // 5. Update queen position
    // 6. Check and lock 2x2 squares
    // 7. Return success/failure
  }

  /**
   * Validate if a move from a given position is valid for a queen
   * @param {number} startRow - Starting row
   * @param {number} startCol - Starting column
   * @param {number} endRow - Ending row
   * @param {number} endCol - Ending column
   * @returns {boolean} Whether the move is valid
   */
  isValidQueenMove(startRow, startCol, endRow, endCol) {
    // TODO: Create a temporary queen at the start position to check move validity
  }

  /**
   * Print the current board state
   */
  printBoard() {
    // TODO: Use the board's print method to display the current state
  }
}

// Example usage
function demonstrateGame() {
  const game = new Game();
  console.log("Initial board:");
  game.printBoard();
  
  // TODO: Add example moves here
}

// Uncomment to run a demonstration
// demonstrateGame();

export {
  Game,
  Queen,
  Board,
  COLORS,
  BOARD_SIZE
};