Write a program with the following specifications: The program should simulate a

Question

Write a program with the following specifications:

The program should simulate a one-player game of battleship. (See earlier activities/assignments for reference.) The user should be able to specify the board size and the number of ships that will be placed on the board. (Ships should be of varied sizes.) Once the board is generated with random ship placement, the user should be able to specify coordinates and have the game show them whether a "hit" or "miss" has occurred and display the resulting screen. Additional rules may be specified as needed.

Program structural requirements:

The board will be constructed with a dynamic array

The ships will be constructed with a linked list

C++

Explanation / Answer

//Please comment for any correction

#include <iostream>
#include <cstdlib>
using namespace std;

struct Ship{
int power;
int p0[3][2];
};

int srink(Ship*** g,int size );
bool createGrid(Ship*** g,int size);
bool createRandShip(Ship*** g,int size ,int num);
void printGrid(Ship*** g,int size );

int main()
{
int grid_size;
int numOfShips;
cout << "Please Enter Size of Grid " ;
cin >> grid_size;
cout << "Please enter number of ships : " ;
cin >> numOfShips;
cout << "Try to sink them all in the fewest number of guesses"<<endl;
  
Ship ***grid;
grid = new Ship**[grid_size];
for(int i = 0; i < grid_size; ++i)
grid[i] = new Ship*[grid_size];
for(int i = 0; i < grid_size; ++i)
for(int j = 0; j < grid_size; ++j)
grid[i][j] = NULL;

createRandShip(grid,grid_size ,numOfShips);
printGrid(grid,grid_size);
int numOfGuess = 0;
while(numOfShips>0){
//printGrid(grid,grid_size);
if(srink(grid,grid_size)==3){
numOfShips--;
}
       numOfGuess++;
       if(numOfGuess==20){
       cout << "All ships are not sank!"<<endl;
   cout << "Took you long enough "<<numOfGuess<<" guesses.!"<<endl;  
   cout << "Fish are dancing with your options."<<endl;
       }
       if(numOfGuess==25){
       break;
       }
}
if(numOfGuess<=20){
   cout << "All ships are sank!"<<endl;
   cout << "It only took you "<<numOfGuess<<" guesses.!"<<endl;  
   cout << "You got out before your options sank."<<endl;
}
if(numOfGuess>20 && numOfShips>0){
cout << "You are not able to sank all ships!"<<endl;
cout << "Here is grid:"<<endl;
printGrid(grid,grid_size);
}
if(numOfGuess>20 && numOfShips==0){
cout << "All ships are sank!"<<endl;
}
  
return 0;
}
bool createGrid(Ship*** g,int size ){
g = new Ship**[size];
for(int i = 0; i < size; ++i)
g[i] = new Ship*[size];
  
for(int i = 0; i < size; ++i)
for(int j = 0; j < size; ++j)
g[i][j] = NULL;
}
int srink(Ship*** g,int size ){
int x;
int y;
while(true){
cout <<"Enter a guess [row (1 to "<<size<<")] [col (1 to "<<size<<")]:";
cin >>x >>y;
x--;
y--;
if(x>=0&&x<size && y>=0&&y<size){
break;
}
else{
cout<<"Invalid Value"<<endl;
continue;
}
}
Ship * p = g[x][y];
if(p == NULL){
cout<<" Miss"<<endl;
return 0;
}
else{
p->power--;
g[x][y] = NULL;
if(p->power==0){
cout<<" Kill"<<endl;
return 3;
}
else{
cout<<" Hit"<<endl;
return 2;
}
}

}
void printGrid(Ship*** g,int size ){
for(int i = 0; i < size; ++i){
for(int j = 0; j < size; ++j){
Ship *p = g[i][j];
if(p != NULL){
cout <<" "<<p->power;
}
else
cout <<" ~";
}
cout << endl;
}
}
bool createRandShip(Ship*** g,int size ,int num){
int count = 0;
while(num>0){
int xPos = rand()%size;
int yPos = rand()%size;
if((xPos+1)<size && (xPos-1)>=0 && g[xPos][yPos]==NULL && g[xPos+1][yPos]==NULL && g[xPos-1][yPos]==NULL){
Ship *p = new Ship;
p->power = 3;
g[xPos][yPos] = p;
g[xPos+1][yPos] = p;
g[xPos-1][yPos] = p;
num--;
//cout <<"Vert xPos="<<xPos<<" yPos "<<yPos<<endl;
}
else if((yPos+1)<size && (yPos-1)>=0 && g[xPos][yPos]==NULL && g[xPos][yPos+1]==NULL && g[xPos][yPos-1] == NULL){
Ship *p = new Ship;
p->power = 3;
g[xPos][yPos] = p;
g[xPos][yPos+1] = p;
g[xPos][yPos-1] = p;
num--;
//cout <<"Horz xPos="<<xPos<<" yPos "<<yPos<<endl;
}
count++;
if(count>200)
break;
}
if(count>200)
return false;
return true;
}

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