BATTLESHIP! (slight update)

// Structured Programming
// Quinn H.
// BATTLESHIP!
// Started May 13, 2019

#include <iostream>
#include <cstdlib>
#include <thread>
#include <chrono>

using namespace std;

void printBoard( char grid[6][6] );

int main()
{
    // intro
    cout << "Welcome to BATTLESHIP!\n\n";
    cout << "The coordinate grid is 6 by 6, and your boat is 3 spaces long,\n";
    cout << "so please keep that in mind when entering the coordinates\n\n";

    // initialize variables
    int xBow;
    int yBow;
    int xStern;
    int yStern;

    // create the boards
    char gridOne[6][6] =
    {
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' }
    };

    char gridTwo[6][6] =
    {
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' },
        { '/', '/', '/', '/', '/', '/' }
    };

    char gridOneRadar[6][6] =
    {
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' }
    };

    char gridTwoRadar[6][6] =
    {
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' },
        { '-', '-', '-', '-', '-', '-' }
    };

    // prompt player one for their ship coords
    cout << " - PLAYER 1 -\nPlease enter the coordinates of your bow (front).\n";
    cout << "x > ";
    cin >> xBow;
    cout << "y > ";
    cin >> yBow;
    cout << endl;

    cout << "Now the stern (back) of your boat.\n";
    cout << "x > ";
    cin >> xStern;
    cout << "y > ";
    cin >> yStern;

    // "place" player one's ship on the grid
    gridOne[yBow-1][xBow-1] = 'O';
    gridOne[yStern-1][xStern-1] = 'O';


    // experimental tests to try to fill in 3rd space
    // talk to Quinn before making changes to this
    if( xBow == xStern )
    {
        // ensure that the coords are 2 spaces apart
        if( abs(yBow-yStern) != 2 )
        {
            cout << "\n!! Something has gone wrong with your coordinates.\n\n";
            cout << "Please ensure you bow and stern are 2 spaces apart.\n\n";
            cout << "The program will now terminate.\n";
            exit(2);
        }

        if( yBow > yStern )
        {
            gridOne[yStern][xStern-1] = 'O';
        }
        else // yStern > yBow
        {
            gridOne[yBow][xBow-1] = 'O';
        }
    }
    else if( yBow == yStern )
    {
        // ensure that the coords are 2 spaces apart
        if( abs(xBow-xStern) != 2 )
        {
            cout << "\n!! Something has gone wrong with your coordinates.\n\n";
            cout << "Please ensure you bow and stern are 2 spaces apart.\n\n";
            cout << "The program will now terminate.\n";
            exit(2);
        }

        if( xBow > xStern )
        {
            gridOne[yStern-1][xStern] = 'O';
        }
        else // xStern > xBow
        {
            gridOne[yBow-1][xBow] = 'O';
        }
    }
    else
    {
        cout << "\n!! Something has gone wrong with your coordinates.\n\n";
        cout << "Please ensure that the bow and the stern are\non the same horizontal or vertical axis.\n\n";
        cout << "The program will now terminate.\n";
        exit(1);
    }

    // TEST print w/formatting
    cout << endl;
    printBoard(gridOne);
    cout << endl;

    cout << "Does this look right to you? (y/n) > ";
    char userChoice = 'n';
    cin >> userChoice;
    switch(userChoice)
    {
        case 'y':
            cout << "Got it!\n\n";
            break;
        case 'Y':
            cout << "Got it!\n\n";
            break;
        default:
            cout << "Understood. Please rerun the program to reenter coordinates.\n";
            exit(0);
    }


    cout << "\n\n\n\n\n\n\n\n"; // just to clean up the screen


    // prompt player 2 for their stuff
    cout << " - PLAYER 2 -\nPlease enter the coordinates of your bow (front).\n";
    cout << "x > ";
    cin >> xBow;
    cout << "y > ";
    cin >> yBow;
    cout << endl;

    cout << "Now the stern (back) of your boat.\n";
    cout << "x > ";
    cin >> xStern;
    cout << "y > ";
    cin >> yStern;

    // "place" player 2's ship on the grid
    gridTwo[yBow-1][xBow-1] = 'O';
    gridTwo[yStern-1][xStern-1] = 'O';


    // experimental tests to try to fill in 3rd space
    // talk to Quinn before making changes to this
    if( xBow == xStern )
    {
        // ensure that the coords are 2 spaces apart
        if( abs(yBow-yStern) != 2 )
        {
            cout << "\n!! Something has gone wrong with your coordinates.\n\n";
            cout << "Please ensure you bow and stern are 2 spaces apart.\n\n";
            cout << "The program will now terminate.\n";
            exit(2);
        }

        if( yBow > yStern )
        {
            gridTwo[yStern][xStern-1] = 'O';
        }
        else // yStern > yBow
        {
            gridTwo[yBow][xBow-1] = 'O';
        }
    }
    else if( yBow == yStern )
    {
        // ensure that the coords are 2 spaces apart
        if( abs(xBow-xStern) != 2 )
        {
            cout << "\n!! Something has gone wrong with your coordinates.\n\n";
            cout << "Please ensure you bow and stern are 2 spaces apart.\n\n";
            cout << "The program will now terminate.\n";
            exit(2);
        }

        if( xBow > xStern )
        {
            gridTwo[yStern-1][xStern] = 'O';
        }
        else // xStern > xBow
        {
            gridTwo[yBow-1][xBow] = 'O';
        }
    }
    else
    {
        cout << "\n!! Something has gone wrong with your coordinates.\n\n";
        cout << "Please ensure that the bow and the stern are\non the same horizontal or vertical axis.\n\n";
        cout << "The program will now terminate.\n";
        exit(1);
    }

    // TEST print w/formatting
    cout << endl;
    printBoard(gridTwo);
    cout << endl;

    cout << "Does this look right to you? (y/n) > ";
    cin >> userChoice;
    switch(userChoice)
    {
        case 'y':
            cout << "Got it!\n\n";
            break;
        case 'Y':
            cout << "Got it!\n\n";
            break;
        default:
            cout << "Understood. Please rerun the program to reenter coordinates.\n";
            exit(0);
    }




    // BEGINNING OF PLAY LOOP //////////////////////////////////////////////////





    // counter that will be used for the win condition
    // if either of these hits 3, the loop should stop and a win screen should appear
    int p1Score = 0;
    int p2Score = 0;

    // This counter will be used to determine who's turn it is.
    // ODD = P1, EVEN = P2
    int turn = 0;

    // reusable target coordinates
    int xTarget;
    int yTarget;


    cout << "\n\n\n\n\n\n\n\n"; // just to clean up the screen


    while( p1Score != 3 && p2Score != 3 )
    {
        turn++;
        cout << "     TURN " << turn << endl;
        if( turn % 2 != 0 ) // P1's turn
        {
            cout << "    PLAYER 1\n";
        }
        else
        {
            cout << "    PLAYER 2\n";
        }
        cout << "ENEMY RADAR:\n";

        // if..else function based on turn that tests for whose turn it is
        if( turn % 2 != 0 ) // P1's turn
        {
            // display opponent's ghost board
            printBoard(gridTwoRadar);
            cout << "\nYOUR BOARD:\n";
            printBoard(gridOne);

            // prompt current player for their desired target
            // make it so that they can't attack the same place twice
            cout << "Where would you like to attack?\n";
            cout << "x > ";
            cin >> xTarget;
            cout << "y > ";
            cin >> yTarget;

            // check for if they hit an enemy boat
            if( gridTwo[yTarget-1][xTarget-1 ] == 'O' )
            {
                cout << "\n     Nice shot!\nYou hit the enemy's ship at (" << xTarget << "," << yTarget << ").\n";
                this_thread::sleep_for (chrono::seconds(3));
                gridTwo[yTarget-1][xTarget-1]      = 'X';
                gridTwoRadar[yTarget-1][xTarget-1] = 'X';

                p1Score++;
            }
            else if( gridTwoRadar[yTarget-1][xTarget-1 ] == 'X' || gridTwoRadar[yTarget-1][xTarget-1 ] == '#' )
            {
                cout << "\n     Sorry, you've already attacked that space.\n";
                this_thread::sleep_for (chrono::seconds(3));
            }
            else
            {
                cout << "\nYou missed... better luck next turn.\n";
                gridTwoRadar[yTarget-1][xTarget-1] = '#';
                gridTwo[yTarget-1][xTarget-1] = '#';
                this_thread::sleep_for (chrono::seconds(3));
            }

        }
        else // P2's turn
        {
            // display opponent's ghost board
            printBoard(gridOneRadar);
            cout << "\nYOUR BOARD:\n";
            printBoard(gridTwo);

            // prompt current player for their desired target
            // make it so that they can't attack the same place twice
            cout << "Where would you like to attack?\n";
            cout << "x > ";
            cin >> xTarget;
            cout << "y > ";
            cin >> yTarget;

            // check for if they hit an enemy boat
            if( gridOne[yTarget-1][xTarget-1 ] == 'O' )
            {
                cout << "\n     Nice shot!\nYou hit the enemy's ship at (" << xTarget << "," << yTarget << ").\n";
                this_thread::sleep_for (chrono::seconds(3));
                gridOne[yTarget-1][xTarget-1]      = 'X';
                gridOneRadar[yTarget-1][xTarget-1] = 'X';

                p2Score++;
            }
            else if( gridOneRadar[yTarget-1][xTarget-1 ] == 'X' || gridOneRadar[yTarget-1][xTarget-1 ] == '#' )
            {
                cout << "\n     Sorry, you've already attacked that space.\n";
                this_thread::sleep_for (chrono::seconds(3));
            }
            else
            {
                cout << "\nYou missed... better luck next turn.\n";
                gridOneRadar[yTarget-1][xTarget-1] = '#';
                gridOne[yTarget-1][xTarget-1] = '#';
                this_thread::sleep_for (chrono::seconds(3));
            }

        }
        cout << "\n\n\n\n\n\n\n\n"; // just to clean up the screen
    }


    // display win message
    cout << "Congratulations to Player ";
    if( turn % 2 != 0 )
    {
        cout << 1;
    }
    else
    {
        cout << 2;
    }

    cout << " for winning the game!\n\n";

    // end of program
    return 0;
}

void printBoard( char grid[6][6] )
{
    cout << "   ";
    for( int i = 0; i < 6; i++ )
    {
        cout << i+1 << "  ";
    }
    cout << endl;
    for( int i = 0; i < 6; i++ )
    {
        cout << i+1 << "  ";
        for( int j = 0; j < 6; j++ )
        {
            cout << grid[i][j] << "  ";
        }
        cout << endl;
    }
}