For a school assignment I have to create a battleship game where one random 4 length battleship (horizontal or vertical) is generated in a 8x8 gameboard. The player has 15 torpedoes to try and sink the ship. I used a 2D vector and have finished most of the code:
#include <iostream>
#include <vector>
#include <stdlib.h>
#include <time.h>
usingnamespace std;
void generateship(vector<vector<int> >&field);
void fire(vector<vector<int> >&field);
void display(const vector<vector<int> >field);
int main()
{
srand(time(0));
vector<vector<int> >field(8);
for (int x = 0; x < field.size(); x++)
field[x].resize(8);
for (int x = 0; x < field.size(); x++)
for (int y = 0; y < field[y].size(); y++)
field[x][y] = 0;
generateship(field);
fire(field);
system("pause");
return 0;
}
void generateship(vector<vector<int> >&field)
{
int row1 = rand() % 8;
int col1 = rand() % 8;
do
{
int row2 = rand() % 3 + (row1 - 1);
int col2 = rand() % 3 + (col1 - 1);
} while (row2 != row1 && col2)
int col3 = rand()
display(field);
}
void fire(vector<vector<int> >&field)
{
int row, col;
int torps = 15;
int hitcounter = 0;
while (hitcounter != 4 || torps != 0)
{
cout << torps << " torpedoes remain. Fire where? ";
cin >> row >> col;
switch (field[row][col])
{
case 0: cout << "Miss!" << endl << endl;
field[row][col] = 2;
break;
case 1: cout << "Hit!" << endl << endl;
field[row][col] = 3;
hitcounter = hitcounter + 1;
break;
case 2: cout << "Missed again!" << endl << endl;
break;
case 3: cout << "Hit again!" << endl << endl;
break;
}
torps = torps - 1;
display(field);
}
if (hitcounter == 4)
cout << "You win!";
elseif (torps == 0)
cout << "You are out of torpedoes! Game over.";
}
void display(const vector<vector<int> >field)
{
for (int row = 0; row < 8; row++)
{
for (int col = 0; col < 8; col++)
{
switch (field[row][col])
{
case 0: cout << ". ";
break;
case 1: cout << ". ";
break;
case 2: cout << "X ";
break;
case 3: cout << "O ";
break;
}
}
cout << endl;
}
}
As you can probably see I am struggling with the "generateship" function. My goal is to generate RANDOMLY one 4x1 ship (horizontal or vertical) that is completely within my 8x8 2D vector. Any advice/help/comments appreciated!
I would generate first the direction (vertical or horizontal). Then I generate the beginning (x and y) of the battleship. I assume that either x or y increases by 4. So if you get that the battleship is vertical, you can have maximum y for the beginning of the battleship only 4 (y=4,5,6,7), while x is between 0 and 7. If the ship is horizontal, x is between 0 and 4, y is between 0 and 7. So all you need is 3 random numbers.