import cs1.*;


public class TreasureFinderGameDeluxe
{
    public static void main(String[] args)
    {

        /** Constants for readability/flexibility*******/
        final int TREASURE = 999;
        final int GUESSED = -2;
        boolean resume = false;
        int gamemode = 0;
        while (!resume) {
            System.out.print("Easy(0) Medium(1) Hard(2): ");
            gamemode = Keyboard.readInt();
            if (gamemode < 0 || gamemode > 2) {
                System.out.println("Please select a valid game mode");
                resume = false;
            }
            else {
                resume = true;
            }
        }
        final int GAMEMODE = gamemode;
        System.out.print("\f");
        int boardsize = 0;
        resume = false;
        while (!resume) {
            System.out.print("How large would you like the board to be? ");
            boardsize = Keyboard.readInt();
            if (boardsize <= 1) {
                System.out.println("Please select a board size larger than one");
                resume = false;
            }
            else {
                resume = true;
            }
        }
        final int BOARDSIZE = boardsize;
        final int CLOSE = -1;
        final int FAR = -3;

        /** VARIABLES **********************************/
        int[][] board = new int[BOARDSIZE][BOARDSIZE];

        int randRow = (int)(Math.random()*BOARDSIZE);
        int randCol = (int)(Math.random()*BOARDSIZE);

        board[randRow][randCol] = TREASURE;  //TREASURE PLACED AT RANDOM LOCATION, MARKED WITH 999

        int guesses = 1;    //Keeps track of # user guesses (they only get 3)

        int row = 0;
        int col = 0;    //Keeps track of user's row/col guess
        boolean winner = false;     //Determines if user has won yet
        boolean close = false;
        boolean realNum = false;
        int howFar = 0;
        /** MAIN LOOP **********************************/
        while (guesses <= BOARDSIZE && winner == false)
        {

            printBoard(board,false);

            //GET GUESS row/col
            System.out.println("Guess #" + guesses);
            realNum = false;
            while (!realNum) {
                System.out.print("r: ");
                row = Keyboard.readInt();
                if (row >= BOARDSIZE || row < 0) {
                    System.out.println("Please select a valid row");
                    realNum = false;
                }
                else {
                    realNum = true;
                }
            }
            realNum = false;
            while (!realNum) {
                System.out.print("c: ");
                col = Keyboard.readInt();
                if (col >= BOARDSIZE || col < 0) {
                    System.out.println("Please select a valid column");
                    realNum = false;
                }
                else {
                    realNum = true;
                }
            }
            //IF CORRECT END GAME, OTHERWISE MARK SPOT GUESSED
            if (board[row][col] == TREASURE)
                winner = true;
            else
            {
                board[row][col] = GUESSED;
                guesses++;
                if (Math.abs(randCol - col) < Math.abs(randRow - row)) howFar = Math.abs(randRow - row);
                else howFar = Math.abs(randCol - col);
                if (howFar == 1 && GAMEMODE == 1) {
                    board[row][col] = CLOSE;
                }
                else if (GAMEMODE == 0) {
                    if (Math.abs(randCol - col) < Math.abs(randRow - row)) howFar = Math.abs(randRow - row);
                    else howFar = Math.abs(randCol - col);
                    board[row][col] = howFar;
                }
            }

        } //END WHILE
        printBoard(board,true);
        if (winner && guesses == 1)
            System.out.println("\nCongratulations, you won in " + guesses + " guess!");
        else if (winner)
            System.out.println("\nYou won in " + guesses + " guesses!");
        else
            System.out.println("You lost!");


    }//END MAIN


    //HELPER METHOD TO REDUCE CODE IN MAIN
    //NOTICE - can't use constants here. We will discuss better game designs soon!

    //Post-Condition: THE BOARD HAS NOT BEEN ALTERED IN ANY WAY!!!
    private static void printBoard(int[][] arr, boolean isEnd)
    {
        //PRINT BOARD
        System.out.print("\f");




        for (int r = 0; r < arr.length; r++)
        {
            for (int c = 0; c < arr[0].length; c++)
            {
                if (arr[r][c] == -2)
                    System.out.print("     \t");
                else if (arr[r][c] == -1)
                    System.out.print("CLOSE\t");
                else if (isEnd && arr[r][c] == 999)
                    System.out.print("$$$$$\t");
                else if (arr[r][c] > 0 && arr[r][c] != 999)
                    System.out.print(arr[r][c] + "\t");
                else
                    System.out.print("(" + r + "," + c + ")\t");

            }
            System.out.println();
        }

    }


}//END CLASS