main.cpp

// George Fafard and Sean Cosgrove
// Lisa Dion
// CS 120
// Project 3: Battleship

#include <string>
#include <iostream>
#include <optional>
#include <memory>
#include "battleship.h"
#include "destroyer.h"
#include "torpedoes.h"
#include "board.h"

using namespace std;

/********** Global functions declarations **********/

// start game
// Requires: nothing
// Modifies: nothing
// Effects: gets user input for battleship or destroyer battle, calls respective game function
void startGame();

// battleship game
// Requires: nothing
// Modifies: battleship object
// Effects: calls make user battleship and battle functions
void battleshipGame();

// destroyer game
// Requires: nothing
// Modifies: destroyer object
// Effects: calls make user destroyer and destroyer battle function
void destroyerGame();

// make user battleship
// Requires: nothing
// Modifies: creates a new battleship with user input values
// Effects: returns a new battleship
Battleship makeUserBattleship();

// make user destroyer
// Requires: nothing
// Modifies: creates a new destroyer with user input values
// Effects: returns a new destroyer
Destroyer makeUserDestroyer();

// battle
// Requires: two battleships
// Modifies: hitpoints of the battleships
// Effects: fires until one is destroyed (takes turns, battleship one goes first). returns the winner.
Battleship battle(Battleship &pOne, Battleship &pTwo);

// destroyer battle
// Requires: two destroyers
// Modifies: hitpoints of the battleships
// Effects: fires until one is destroyed (takes turns, destroyer one goes first). returns the winner.
Destroyer destroyerBattle(Destroyer &pOne, Destroyer &pTwo);

// MAIN
int main() {
    startGame();
    return 0;
}

/********** Global function definitions **********/

// startGame function
void startGame() {
    // get user input
    char choice;
    cout << "Battleship or Destroyer battle? (B/D) ";
    cin >> choice;
    while (tolower(choice) != 'b' && tolower(choice) != 'd') {
        cout << "Please enter a 'B' or 'D' ";
        cin >> choice;
    }
    // user wants to fight with destroyers
    if (tolower(choice) == 'D') {
        destroyerGame(); // call destroyerGame function
    // user wants to fight with battleships
    } else if (tolower(choice) == 'B') {
        battleshipGame(); // call battleshipGame function
    } else {
        battleshipGame();
    }
}

// battleshipGame function
void battleshipGame() {
    // initialize variables
    Battleship userShip = makeUserBattleship();
    Board board = Board();
    int userX;
    int userY;
    int counter = 0;
    bool forward;
    char choice;
    // while loop until game is over
    while (userShip.getDestroyed() == false){
        // if initial position
        if (userShip.getX()) {
            // if they want to move on X
            choice = 'a';
            cout << "Do you want to move on the X axis (y/n)? ";
            cin >> choice;
            if (choice == 'Y' || choice == 'y') {
                // move forward?
                choice = 'a';
                cout << "Do you want to move forward? (y/n) ";
                cin >> choice;
                if (choice == 'Y' || choice == 'y') {
                    forward = true;
                    cout << "your new X position is: " << board.moveX(userShip, forward) << endl;
                } else if (choice == 'n' || choice != 'N') {
                    forward = false;
                    cout << "your new X position is: " << board.moveX(userShip, forward) << endl;
                } else {
                    cout << "thats not a y or an n" << endl;
                }
            } else if (choice == 'n' || choice != 'N') {
                cout << "Ok, you did not move." << endl;
            } else {
                cout << "thats not a y or an n" << endl;
            }
        } else{
            cout << "Enter your starting X position between 0 and " << board.getSizeX() << ": ";
            cin >> userX;
            while (userX > board.getSizeX() || userX < 0){
                cout << "Enter a valid X: ";
                cin >> userX;
            }
            userShip.setX(userX);
        }
        if (userShip.getY()){
            // move on Y
            choice = 'a';
            cout << "Do you want to move on the Y axis (y/n)? ";
            cin >> choice;
            if (choice == 'Y' || choice == 'y') {
                // move up?
                choice = 'a';
                cout << "Do you want to move up? (y/n) ";
                cin >> choice;
                if (choice == 'Y' || choice == 'y') {
                    forward = true;
                    cout << "your new Y position is: " << board.moveY(userShip, forward) << endl;
                } else if (choice == 'n' || choice != 'N') {
                    forward = false;
                    cout << "your new Y position is: " << board.moveY(userShip, forward) << endl;
                } else {
                    cout << "thats not a y or an n" << endl;
                }
            } else if (choice == 'n' || choice != 'N') {
                cout << "Ok, you did not move." << endl;
            } else {
                cout << "thats not a y or an n" << endl;
            }
        } else {
            cout << "Enter your starting Y position between 0 and " << board.getSizeY() << ": ";
            cin >> userY;
            while (userY > board.getSizeY() || userY < 0){
                cout << "Enter a valid Y: ";
                cin >> userY;
            }
            userShip.setY(userY);
        }
        cout << "Battle enemy ship? (Y/N) ";
        // battle the enemy
        cin >> choice;
        if (choice == 'Y' || choice == 'y' ){
            // count how many ships
            ++counter;
            unique_ptr<Battleship> computerPtr = make_unique<Battleship>("Computer " + to_string(counter));
            // computer position
            computerPtr->setX(0);
            computerPtr->setY(0);
            cout << "Your distance from " << computerPtr->getName() << " is " << board.calcDistance(userShip, *computerPtr) << endl;
            // call battle function
            battle(userShip, *computerPtr);
        } else if(choice == 'n' || choice != 'N') {
            cout << "you're a wimp" << endl;
        } else {
            cout << "thats not a y or an n" << endl;
        }
    }
    cout << "You were destroyed. Game Over." << endl;
}

// destroyerGame function
void destroyerGame() {
    // initialize variables
    Destroyer userShip = makeUserDestroyer();
    Board board = Board();
    int userX;
    int userY;
    int counter = 0;
    bool forward;
    char choice;
    // while loop until game is over
    while (userShip.getDestroyed() == false){
        // if initial position
        if (userShip.getX()) {
            // if they want to move on X
            choice = 'a';
            cout << "Do you want to move on the X axis (y/n)? ";
            cin >> choice;
            if (choice == 'Y' || choice == 'y') {
                // move forward?
                choice = 'a';
                cout << "Do you want to move forward? (y/n) ";
                cin >> choice;
                if (choice == 'Y' || choice == 'y') {
                    forward = true;
                    cout << "your new X position is: " << board.moveX(userShip, forward) << endl;
                } else if (choice == 'n' || choice != 'N') {
                    forward = false;
                    cout << "your new X position is: " << board.moveX(userShip, forward) << endl;
                } else {
                    cout << "thats not a y or an n" << endl;
                }
            } else if (choice == 'n' || choice != 'N') {
                cout << "Ok, you did not move." << endl;
            } else {
                cout << "thats not a y or an n" << endl;
            }
        } else{
            cout << "Enter your starting X position between 0 and " << board.getSizeX() << ": ";
            cin >> userX;
            while (userX > board.getSizeX() || userX < 0){
                cout << "Enter a valid X: ";
                cin >> userX;
            }
            userShip.setX(userX);
        }
        if (userShip.getY()){
            // move on Y
            choice = 'a';
            cout << "Do you want to move on the Y axis (y/n)? ";
            cin >> choice;
            if (choice == 'Y' || choice == 'y') {
                // move up?
                choice = 'a';
                cout << "Do you want to move up? (y/n) ";
                cin >> choice;
                if (choice == 'Y' || choice == 'y') {
                    forward = true;
                    cout << "your new Y position is: " << board.moveY(userShip, forward) << endl;
                } else if (choice == 'n' || choice != 'N') {
                    forward = false;
                    cout << "your new Y position is: " << board.moveY(userShip, forward) << endl;
                } else {
                    cout << "thats not a y or an n" << endl;
                }
            } else if (choice == 'n' || choice != 'N') {
                cout << "Ok, you did not move." << endl;
            } else {
                cout << "thats not a y or an n" << endl;
            }
        } else {
            cout << "Enter your starting Y position between 0 and " << board.getSizeY() << ": ";
            cin >> userY;
            while (userY > board.getSizeY() || userY < 0){
                cout << "Enter a valid Y: ";
                cin >> userY;
            }
            userShip.setY(userY);
        }
        cout << "Battle enemy ship? (Y/N) ";
        // battle the enemy
        cin >> choice;
        if (choice == 'Y' || choice == 'y' ){
            // count how many ships
            ++counter;
            unique_ptr<Destroyer> computerPtr = make_unique<Destroyer>("Computer " + to_string(counter));
            // computer position
            computerPtr->setX(0);
            computerPtr->setY(0);
            cout << "Your distance from " << computerPtr->getName() << " is " << board.calcDistance(userShip, *computerPtr) << endl;
            // call destroyerBattle function
            destroyerBattle(userShip, *computerPtr);
        } else if(choice == 'n' || choice != 'N') {
            cout << "you're a wimp" << endl;
        } else {
            cout << "thats not a y or an n" << endl;
        }
    }
    cout << "You were destroyed. Game Over." << endl;
}

// make user battleship function
Battleship makeUserBattleship() {
    string name;
    int hitPoints;
    int firePower;
    int accuracy;
    int speed;
    cout << "Enter the name of your Battleship: ";
    cin >> name;
    cout << "Enter the Hitpoints of your Battleship (Integer Between 100-30,000): ";
    cin >> hitPoints;
    if (hitPoints < 100 || hitPoints > 30000) {
        cout << "Invalid hit points, set to default (1,000)" << endl;
        hitPoints = 1000;
    }
    cout << "Enter the Fire Power of your Battleship (Between 50,000-1,000,000): ";
    cin >> firePower;
    if (firePower < 50000 || firePower > 1000000) {
        cout << "Invalid fire power, set to default (50,000)" << endl;
        firePower = 50000;
    }
    cout << "Enter the Accuracy of your Battleship (Between 1-100): ";
    cin >> accuracy;
    if (accuracy < 0 || accuracy > 100) {
        cout << "Invalid pAccuracy, set to default (75)" << endl;
        accuracy = 75;
    }
    cout << "Enter the Speed of your Battleship (Between 1-100): ";
    cin >> speed;
    if (speed < 0 || speed > 100){
        cout << "Invalid pSpeed, set to default (50)" << endl;
        speed = 50;
    }
    // make Battleship a unique pointer and return it to battleshipGame function
    unique_ptr<Battleship> userShip = make_unique<Battleship>(name, hitPoints, firePower, accuracy, speed);
    return *userShip;
}

// make user destroyer function
Destroyer makeUserDestroyer() {
    string name;
    int hitPoints;
    int firePower;
    int accuracy;
    int speed;
    cout << "Enter the name of your Battleship: ";
    cin >> name;
    cout << "Enter the Hitpoints of your Battleship (Integer Between 100-30,000): ";
    cin >> hitPoints;
    if (hitPoints < 100 || hitPoints > 30000) {
        cout << "Invalid hit points, set to default (1,000)" << endl;
        hitPoints = 1000;
    }
    cout << "Enter the Fire Power of your Battleship (Between 50,000-1,000,000): ";
    cin >> firePower;
    if (firePower < 50000 || firePower > 1000000) {
        cout << "Invalid fire power, set to default (50,000)" << endl;
        firePower = 50000;
    }
    cout << "Enter the Accuracy of your Battleship (Between 1-100): ";
    cin >> accuracy;
    if (accuracy < 0 || accuracy > 100) {
        cout << "Invalid pAccuracy, set to default (75)" << endl;
        accuracy = 75;
    }
    cout << "Enter the Speed of your Battleship (Between 1-100): ";
    cin >> speed;
    if (speed < 0 || speed > 100){
        cout << "Invalid pSpeed, set to default (50)" << endl;
        speed = 50;
    }
    // make Destroyer a unique pointer and return it to destroyerGame function
    unique_ptr<Destroyer> userShip = make_unique<Destroyer>(name, hitPoints, firePower, accuracy, speed);
    return *userShip;
}

// battle function
Battleship battle(Battleship &pOne, Battleship &pTwo){
    if (pOne.getDestroyed() == false && pTwo.getDestroyed() == false) {
        while (pOne.getDestroyed() == false && pTwo.getDestroyed() == false) {
            pOne.fire(pTwo);
            if (pTwo.getDestroyed() == false) {
                pTwo.fire(pOne);
            }
        }
        if (pOne.getDestroyed() == false) {
            return pOne;
        } else {
            return pTwo;
        }
    } else{
        if (pOne.getDestroyed()){
            cout << "cannot battle, " << pOne.getName() << " is destroyed" << endl;
            return pTwo;
        } else{
            cout << "cannot battle, " << pTwo.getName() << " is destroyed" << endl;
            return pOne;
        }
    }
}

// destroyerBattle function
Destroyer destroyerBattle(Destroyer &pOne, Destroyer &pTwo){
    if (pOne.getDestroyed() == false && pTwo.getDestroyed() == false) {
        while (pOne.getDestroyed() == false && pTwo.getDestroyed() == false) {
            pOne.fire(pTwo);
            if (pTwo.getDestroyed() == false) {
                pTwo.fire(pOne);
            }
        }
        if (pOne.getDestroyed() == false) {
            return pOne;
        } else {
            return pTwo;
        }
    } else{
        if (pOne.getDestroyed()){
            cout << "cannot battle, " << pOne.getName() << " is destroyed" << endl;
            return pTwo;
        } else{
            cout << "cannot battle, " << pTwo.getName() << " is destroyed" << endl;
            return pOne;
        }
    }
}