//-------------------------------------------------------------------
// File			:board.C
// Author		:Alicia Thorsen
// Course		:CS1129 
//
// Functions which handle the Boggle board.
//-------------------------------------------------------------------

#include "board.h"

#include <fstream>
#include <iostream>
#include <string>
#include <cstdlib>
#include <cctype>
#include <ctime>
using namespace std;

//-------------------------------------------------------------------
// Precondition	    :None	
// Postcondition    :A random Boggle board is generated
//-------------------------------------------------------------------

void getBoard(char board[][SIZE]) {
  //File containing the letters on each die
  const char filename[] = "dice.txt";

  char temp;
  int row, col, randNum, k = 0;
  ifstream inputFile;

  //# of faces on a die
  const int sides = 6;

  //Array containing all dice
  char dice[SIZE * SIZE][sides];

  //Open file
  inputFile.open(filename);

  //Check for error
  if (inputFile.fail()) {
    cout << "Could not read from file " << filename << "! ";
    cout << "Aborting." << endl;
    exit(1);
  }

  //Read letters on the side of each die
  for (int i = 0; i < (SIZE * SIZE); i++)
    for (int j = 0; j < sides; j++)
      inputFile >> dice[i][j];

  inputFile.close();

  //Randomly choose letters from each die 
  for (int i = 0; i < SIZE; i++)
    for (int j = 0; j < SIZE; j++) {
      randNum = rand() % sides;
      board[i][j] = tolower(dice[k][randNum]);
      k++;
    }

  //Shake up board
  for (int i = 0; i < SIZE; i++)
    for (int j = 0; j < SIZE; j++) {
      row = rand() % SIZE;
      col = rand() % SIZE;

      temp = board[i][j];
      board[i][j] = board[row][col];
      board[row][col] = temp;
    }

}//end getBoard()


//-------------------------------------------------------------------
// Precondition	    :board contains a Boggle board	
// Postcondition    :Boggle board is displayed
//-------------------------------------------------------------------

void displayBoard(char board[][SIZE]) {
  char c;

  cout << "\n.  -  .  -  .  -  .  -  .\n";

  for (int i = 0; i < SIZE; i++) {
    cout << "|  ";
    for (int j = 0; j < SIZE; j++) {
      c = toupper(board[i][j]);
      //Display Q and U on the same die face
      if (c == 'Q')
        cout << "QU |  ";
      else
        cout << c << "  |  ";
    }
    cout << "\n.  -  .  -  .  -  .  -  .\n";
  }
}//end displayBoard()


//-------------------------------------------------------------------
// Precondition	    :None	
// Postcondition    :Boggle logo is displayed
//-------------------------------------------------------------------

void showLogo() {
  cout << "\t\t\t       ______   _______  _______  _______  _        _______ " << endl;
  cout << "\t\t\t      (  ___ \\ (  ___  )(  ____ \\(  ____ \\( \\      (  ____ \\ " << endl;
  cout << "\t\t\t      | (   ) )| (   ) || (    \\/| (    \\/| (      | (    \\/ " << endl;
  cout << "\t\t\t      | (__/ / | |   | || |      | |      | |      | (__ " << endl;   
  cout << "\t\t\t      |  __ (  | |   | || | ____ | | ____ | |      |  __) " << endl;  
  cout << "\t\t\t      | (  \\ \\ | |   | || | \\_  )| | \\_  )| |      | ( " << endl;     
  cout << "\t\t\t      | )___) )| (___) || (___) || (___) || (____/\\| (____/\\ " << endl;
  cout << "\t\t\t      |/ \\___/ (_______)(_______)(_______)(_______/(_______/ " << endl;
}//end showLogo()


//-------------------------------------------------------------------
// Precondition	    :None	
// Postcondition    :Boggle instructions are displayed
//-------------------------------------------------------------------

void showInstructions() {
  cout << "\n\t\t\t\t+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+";
  cout << "\n\t\t\t\t|         Welcome to the game of Boggle!          |";
  cout << "\n\t\t\t\t+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t|                INSTRUCTIONS                     |";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t| - You will be shown a 4x4 grid of letters which |";
  cout << "\n\t\t\t\t|   you will use to find as many words as         |";
  cout << "\n\t\t\t\t|   possible in 3 mins.                           |";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t| - You can form words by connecting letters      |";
  cout << "\n\t\t\t\t|   vertically, horizontally and diagonally,      |";
  cout << "\n\t\t\t\t|   however you cannot use the same tile more     |";
  cout << "\n\t\t\t\t|   than once in a word.                          |";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t| - The words are scored as follows:              |";
  cout << "\n\t\t\t\t|       2 or less letters = 0 pts                 |";
  cout << "\n\t\t\t\t|       3 or 4 letters    = 1 pt                  |";
  cout << "\n\t\t\t\t|       5 letters         = 2 pts                 |";
  cout << "\n\t\t\t\t|       6 letters         = 3 pts                 |";
  cout << "\n\t\t\t\t|       7 letters         = 4 pts                 |";
  cout << "\n\t\t\t\t|       8 or more letters = 11 pts                |";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t| - Words not in the dictionary receive 0 pts.    |";
  cout << "\n\t\t\t\t|                                                 |";
  cout << "\n\t\t\t\t+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+";
}//end showInstructions()